155 research outputs found
Low-latency gravitational wave alert products and their performance at the time of the fourth LIGO-Virgo-KAGRA observing run
No full textMultimessenger searches for binary neutron star (BNS) and neutron star-black hole (NSBH) mergers are currently one of the most exciting areas of astronomy. The search for joint electromagnetic and neutrino counterparts to gravitational wave (GW)s has resumed with ALIGO's, AdVirgo's and KAGRA's fourth observing run (O4). To support this effort, public semiautomated data products are sent in near real-time and include localization and source properties to guide complementary observations. In preparation for O4, we have conducted a study using a simulated population of compact binaries and a mock data challenge (MDC) in the form of a real-time replay to optimize and profile the software infrastructure and scientific deliverables. End-toend performance was tested, including data ingestion, running online search pipelines, performing annotations, and issuing alerts to the astrophysics community. We present an overview of the low-latency infrastructure and the performance of the data products that are now being released during O4 based on the MDC. We report the expected median latency for the preliminary alert of full bandwidth searches (29.5 s) and show consistency and accuracy of released data products using the MDC. We report the expected median latency for triggers from early warning searches (-3.1 s), which are new in O4 and target neutron star mergers during inspiral phase. This paper provides a performance overview for LIGO-Virgo-KAGRA (LVK) low-latency alert infrastructure and data products using theMDCand serves as a useful reference for the interpretation of O4 detections
A Joint Fermi-GBM and Swift-BAT Analysis of Gravitational-Wave Candidates from the Third Gravitational-wave Observing Run
No full textAuthors: - C. Fletcher, J. Wood, R. Hamburg, P. Veres, C. M. Hui, E. Bissaldi, M. S. Briggs, E. Burns, W. H. Cleveland, M. M. Giles, A. Goldstein, B. A. Hristov, D. Kocevski, S. Lesage, B. Mailyan, C. Malacaria, S. Poolakkil, A. von Kienlin, and C. A. Wilson-Hodge, Fermi Gamma-Ray Burst Monitor Team, M. Crnogorcevic, J. DeLaunay, A. Tohuvavohu, R. Caputo, S. B. Cenko, S. Laha, and T. Parsotan, R. Abbott, H. Abe, F. Acernese, K. Ackley, N. Adhikari, R. X. Adhikari, V. K. Adkins, V. B. Adya, C. Affeldt, D. Agarwal, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, T. Akutsu, S. Albanesi, R. A. Alfaidi, A. Allocca, P. A. Altin, A. Amato, C. Anand, S. Anand, A. Ananyeva, S. B. Anderson, W. G. Anderson, M. Ando, T. Andrade, N. Andres, M. Andres-Carcasona, T. Andric, S. V. Angelova, S. Ansoldi, J. M. Antelis, S. Antier, T. Apostolatos, E. Z. Appavuravther, S. Appert, S. K. Apple, K. Arai, A. Araya, M. C. Araya, J. S. Areeda, M. Arene, N. Aritomi, N. Arnaud, M. Arogeti, S. M. Aronson, K. G. Arun, H. Asada, Y. Asali, G. Ashton, Y. Aso, M. Assiduo, S. Assis de Souza Melo, S. M. Aston, P. Astone, F. Aubin, K. AultONeal, C. Austin, S. Babak, F. Badaracco, M. K. M. Bader, C. Badger, S. Bae, Y. Bae, A. M. Baer, S. Bagnasco, Y. Bai, J. Baird, R. Bajpai, T. Baka, M. Ball, G. Ballardin, S. W. Ballmer, A. Balsamo, G. Baltus, S. Banagiri, B. Banerjee, D. Bankar, J. C. Barayoga, C. Barbieri, B. C. Barish, D. Barker, P. Barneo, F. Barone, B. Barr, L. Barsotti, M. Barsuglia, D. Barta, J. Bartlett, M. A. Barton, I. Bartos, S. Basak, R. Bassiri, A. Basti, M. Bawaj, J. C. Bayley, M. Bazzan, B. R. Becher, B. Becsy, V. M. Bedakihale, F. Beirnaert, M. Bejger, I. Belahcene, V. Benedetto, D. Beniwal, M. G. Benjamin, T. F. Bennett, J. D. Bentley, M. BenYaala, S. Bera, M. Berbel, F. Bergamin, B. K. Berger, S. Bernuzzi, C. P. L. Berry, D. Bersanetti, A. Bertolini, J. Betzwieser, D. Beveridge, R. Bhandare, A. V. Bhandari, U. Bhardwaj, R. Bhatt, D. Bhattacharjee, S. Bhaumik, A. Bianchi, I. A. Bilenko, G. Billingsley, S. Bini, R. Birney, O. Birnholtz, S. Biscans, M. Bischi, S. Biscoveanu, A. Bisht, B. Biswas, M. Bitossi, M.-A. Bizouard, J. K. Blackburn, C. D. Blair, D. G. Blair, R. M. Blair, F. Bobba, N. Bode, M. Boer, G. Bogaert, M. Boldrini, G. N. Bolingbroke, L. D. Bonavena, F. Bondu, E. Bonilla, R. Bonnand, P. Booker, B. A. Boom, R. Bork, V. Boschi, N. Bose, S. Bose, V. Bossilkov, V. Boudart, Y. Bouffanais, A. Bozzi, C. Bradaschia, P. R. Brady, A. Bramley, A. Branch, M. Branchesi, J. E. Brau, M. Breschi, T. Briant, J. H. Briggs, A. Brillet, M. Brinkmann, P. Brockill, A. F. Brooks, J. Brooks, D. D. Brown, S. Brunett, G. Bruno, R. Bruntz, J. Bryant, F. Bucci, T. Bulik, H. J. Bulten, A. Buonanno, K. Burtnyk, R. Buscicchio, D. Buskulic, C. Buy, R. L. Byer, G. S. Cabourn Davies, G. Cabras, R. Cabrita, L. Cadonati, M. Caesar, G. Cagnoli, C. Cahillane, J. Calderon Bustillo, J. D. Callaghan, T. A. Callister, E. Calloni, J. Cameron, J. B. Camp, M. Canepa, S. Canevarolo, M. Cannavacciuolo, K. C. Cannon, H. Cao, Z. Cao, E. Capocasa, E. Capote, G. Carapella, F. Carbognani, M. Carlassara, J. B. Carlin, M. F. Carney, M. Carpinelli, G. Carrillo, G. Carullo, T. L. Carver, J. Casanueva Diaz, C. Casentini, G. Castaldi, S. Caudill, M. Cavaglia, F. Cavalier, R. Cavalieri, G. Cella, P. Cerda-Duran, E. Cesarini, W. Chaibi, S. Chalathadka Subrahmanya, E. Champion, C.-H. Chan, C. Chan, C. L. Chan, K. Chan, M. Chan, K. Chandra, I. P. Chang, P. Chanial, S. Chao, C. Chapman-Bird, P. Charlton, E. A. Chase, E. Chassande-Mottin, C. Chatterjee, Debarati Chatterjee, Deep Chatterjee, M. Chaturvedi, S. Chaty, C. Chen, D. Chen, H. Y. Chen, J. Chen, K. Chen, X. Chen, Y.-B. Chen, Y.-R. Chen, Z. Chen, H. Cheng, C. K. Cheong, H. Y. Cheung, H. Y. Chia, F. Chiadini, C-Y. Chiang, G. Chiarini, R. Chierici, A. Chincarini, M. L. Chiofalo, A. Chiummo, R. K. Choudhary, S. Choudhary, N. Christensen, Q. Chu, Y-K. Chu, S. S. Y. Chua, K. W. Chung, G. Ciani, P. Ciecielag, M. Cieslar, M. Cifaldi, A. A. Ciobanu, R. Ciolfi, F. Cipriano, F. Clara, J. A. Clark, P. Clearwater, S. Clesse, F. Cleva, E. Coccia, E. Codazzo, P.-F. Cohadon, D. E. Cohen, M. Colleoni, C. G. Collette, A. Colombo, M. Colpi, C. M. Compton, M. Constancio Jr., L. Conti, S. J. Cooper, P. Corban, T. R. Corbitt, I. Cordero-Carrion, S. Corezzi, K. R. Corley, N. J. Cornish, D. Corre, A. Corsi, S. Cortese, C. A. Costa, R. Cotesta, R. Cottingham, M. W. Coughlin, J.-P. Coulon, S. T. Countryman, B. Cousins, P. Couvares, D. M. Coward, M. J. Cowart, D. C. Coyne, R. Coyne, J. D. E. Creighton, T. D. Creighton, A. W. Criswell, M. Croquette, S. G. Crowder, J. R. Cudell, T. J. Cullen, A. Cumming, R. Cummings, L. Cunningham, E. Cuoco, M. Cury lo, P. Dabadie, T. Dal Canton, S. Dall’Osso, G. Dalya, A. Dana, B. D’Angelo, S. Danilishin, S. D’Antonio, K. Danzmann, C. Darsow-Fromm, A. Dasgupta, L. E. H. Datrier, Sayak Datta, Sayantani Datta, V. Dattilo, I. Dave, M. Davier, D. Davis, M. C. Davis, E. J. Daw, R. Dean, D. DeBra, M. Deenadayalan, J. Degallaix, M. De Laurentis, S. Deleglise, V. Del Favero, F. De Lillo, N. De Lillo, D. Dell’Aquila, W. Del Pozzo, L. M. DeMarchi, F. De Matteis, V. D’Emilio, N. Demos, T. Dent, A. Depasse, R. De Pietri, R. De Rosa, C. De Rossi, R. DeSalvo, R. De Simone, S. Dhurandhar, M. C. D´ıaz, N. A. Didio, T. Dietrich, L. Di Fiore, C. Di Fronzo, C. Di Giorgio, F. Di Giovanni, M. Di Giovanni, T. Di Girolamo, A. Di Lieto, A. Di Michele, B. Ding, S. Di Pace, I. Di Palma, F. Di Renzo, A. K. Divakarla, A. Dmitriev, Z. Doctor, L. Donahue, L. D’Onofrio, F. Donovan, K. L. Dooley, S. Doravari, M. Drago, J. C. Driggers, Y. Drori, J.-G. Ducoin, P. Dupej, U. Dupletsa, O. Durante, D. D’Urso, P.-A. Duverne, S. E. Dwyer, C. Eassa, P. J. Easter, M. Ebersold, T. Eckhardt, G. Eddolls, B. Edelman, T. B. Edo, O. Edy, A. Effler, S. Eguchi, J. Eichholz, S. S. Eikenberry, M. Eisenmann, R. A. Eisenstein, A. Ejlli, E. Engelby, Y. Enomoto, L. Errico, R. C. Essick, H. Estelles, D. Estevez, Z. Etienne, T. Etzel, M. Evans, T. M. Evans, T. Evstafyeva, B. E. Ewing, F. Fabrizi, F. Faedi, V. Fafone, H. Fair, S. Fairhurst, P. C. Fan, A. M. Farah, S. Farinon, B. Farr, W. M. Farr, E. J. Fauchon-Jones, G. Favaro, M. Favata, M. Fays, M. Fazio, J. Feicht, M. M. Fejer, E. Fenyvesi, D. L. Ferguson, A. Fernandez-Galiana, I. Ferrante, T. A. Ferreira, F. Fidecaro, P. Figura, A. Fiori, I. Fiori, M. Fishbach, R. P. Fisher, R. Fittipaldi, V. Fiumara, R. Flaminio, E. Floden, H. K. Fong, J. A. Font, B. Fornal, P. W. F. Forsyth, A. Franke, S. Frasca, F. Frasconi, J. P. Freed, Z. Frei, A. Freise, O. Freitas, R. Frey, P. Fritschel, V. V. Frolov, G. G. Fronze, Y. Fujii, Y. Fujikawa, Y. Fujimoto, P. Fulda, M. Fyffe, H. A. Gabbard, W. E. Gabella, B. U. Gadre, J. R. Gair, J. Gais, S. Galaudage, R. Gamba, D. Ganapathy, A. Ganguly, D. Gao, S. G. Gaonkar, B. Garaventa, C. Garcıa Nunez, C. Garcıa-Quiros, F. Garufi, B. Gateley, V. Gayathri, G.-G. Ge, G. Gemme, A. Gennai, J. George, O. Gerberding, L. Gergely, P. Gewecke, S. Ghonge, Abhirup Ghosh, Archisman Ghosh, Shaon Ghosh, Shrobana Ghosh, Tathagata Ghosh, B. Giacomazzo, L. Giacoppo, J. A. Giaime, K. D. Giardina, D. R. Gibson, C. Gier, M. Giesler, P. Giri, F. Gissi, S. Gkaitatzis, J. Glanzer, A. E. Gleckl, P. Godwin, E. Goetz, R. Goetz, N. Gohlke, J. Golomb, B. Goncharov, G. Gonzalez, M. Gosselin, R. Gouaty, D. W. Gould, S. Goyal, B. Grace, A. Grado, V. Graham, M. Granata, V. Granata, A. Grant, S. Gras, P. Grassia, C. Gray, R. Gray, G. Greco, A. C. Green, R. Green, A. M. Gretarsson, E. M. Gretarsson, D. Griffith, W. L. Griffiths, H. L. Griggs, G. Grignani, A. Grimaldi, E. Grimes, S. J. Grimm, H. Grote, S. Grunewald, P. Gruning, A. S. Gruson, D. Guerra, G. M. Guidi, A. R. Guimaraes, G. Guixe, H. K. Gulati, A. M. Gunny, H.-K. Guo, Y. Guo, Anchal Gupta, Anuradha Gupta, I. M. Gupta, P. Gupta, S. K. Gupta, R. Gustafson, F. Guzman, S. Ha, I. P. W. Hadiputrawan, L. Haegel, S. Haino, O. Halim, E. D. Hall, E. Z. Hamilton, G. Hammond, W.-B. Han, M. Haney, J. Hanks, C. Hanna, M. D. Hannam, O. Hannuksela, H. Hansen, T. J. Hansen, J. Hanson, T. Harder, K. Haris, J. Harms, G. M. Harry, I. W. Harry, D. Hartwig, K. Hasegawa, B. Haskell, C.-J. Haster, J. S. Hathaway, K. Hattori, K. Haughian, H. Hayakawa, K. Hayama, F. J. Hayes, J. Healy, A. Heidmann, A. Heidt, M. C. Heintze, J. Heinze, J. Heinzel, H. Heitmann, F. Hellman, P. Hello, A. F. Helmling-Cornell, G. Hemming, M. Hendry, I. S. Heng, E. Hennes, J. Hennig, M. H. Hennig, C. Henshaw, A. G. Hernandez, F. Hernandez Vivanco, M. Heurs, A. L. Hewitt, S. Higginbotham, S. Hild, P. Hill, Y. Himemoto, A. S. Hines, N. Hirata, C. Hirose, T-C. Ho, S. Hochheim, D. Hofman, J. N. Hohmann, D. G. Holcomb, N. A. Holland, I. J. Hollows, Z. J. Holmes, K. Holt, D. E. Holz, Q. Hong, J. Hough, S. Hourihane, E. J. Howell, C. G. Hoy, D. Hoyland, A. Hreibi, B-H. Hsieh, H-F. Hsieh, C. Hsiung, Y. Hsu, H-Y. Huang, P. Huang, Y-C. Huang, Y.-J. Huang, Yiting Huang, Yiwen Huang, M. T. Hubner, A. D. Huddart, B. Hughey, D. C. Y. Hui, V. Hui, S. Husa, S. H. Huttner, R. Huxford, T. Huynh-Dinh, S. Ide, B. Idzkowski, A. Iess, K. Inayoshi, Y. Inoue, P. Iosif, M. Isi, K. Isleif, K. Ito, Y. Itoh, B. R. Iyer, V. JaberianHamedan, T. Jacqmin, P.-E. Jacquet, S. J. Jadhav, S. P. Jadhav, T. Jain, A. L. James, A. Z. Jan, K. Jani, J. Janquart, K. Janssens, N. N. Janthalur, P. Jaranowski, D. Jariwala, R. Jaume, A. C. Jenkins, K. Jenner, C. Jeon, W. Jia, J. Jiang, H.-B. Jin, G. R. Johns, R. Johnston, A. W. Jones, D. I. Jones, P. Jones, R. Jones, P. Joshi, L. Ju, A. Jue, P. Jung, K. Jung, J. Junker, V. Juste, K. Kaihotsu, T. Kajita, M. Kakizaki, C. V. Kalaghatgi, V. Kalogera, B. Kamai, M. Kamiizumi, N. Kanda, S. Kandhasamy, G. Kang, J. B. Kanner, Y. Kao, S. J. Kapadia, D. P. Kapasi, C. Karathanasis, S. Karki, R. Kashyap, M. Kasprzack, W. Kastaun, T. Kato, S. Katsanevas, E. Katsavounidis, W. Katzman, T. Kaur, K. Kawabe, K. Kawaguchi, F. Kefelian, D. Keitel, J. S. Key, S. Khadka, F. Y. Khalili, S. Khan, T. Khanam, E. A. Khazanov, N. Khetan, M. Khursheed, N. Kijbunchoo, A. Kim, C. Kim, J. C. Kim, J. Kim, K. Kim, W. S. Kim, Y.-M. Kim, C. Kimball, N. Kimura, M. Kinley-Hanlon, R. Kirchhoff, J. S. Kissel, S. Klimenko, T. Klinger, A. M. Knee, T. D. Knowles, N. Knust, E. Knyazev, Y. Kobayashi, P. Koch, G. Koekoek, K. Kohri, K. Kokeyama, S. Koley, P. Kolitsidou, M. Kolstein, K. Komori, V. Kondrashov, A. K. H. Kong, A. Kontos, N. Koper, M. Korobko, M. Kovalam, N. Koyama, D. B. Kozak, C. Kozakai, V. Kringel, N. V. Krishnendu, A. Krolak, G. Kuehn, F. Kuei, P. Kuijer, S. Kulkarni, A. Kumar, Prayush Kumar, Rahul Kumar, Rakesh Kumar, J. Kume, K. Kuns, Y. Kuromiya, S. Kuroyanagi, K. Kwak, G. Lacaille, P. Lagabbe, D. Laghi, E. Lalande, M. Lalleman, T. L. Lam, A. Lamberts, M. Landry, B. B. Lane, R. N. Lang, J. Lange, B. Lantz, I. La Rosa, A. Lartaux-Vollard, P. D. Lasky, M. Laxen, A. Lazzarini, C. Lazzaro, P. Leaci, S. Leavey, S. 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Neunzert, K. Y. Ng, S. W. S. Ng, C. Nguyen, P. Nguyen, T. Nguyen, L. Nguyen Quynh, J. Ni, W.-T. Ni, S. A. Nichols, T. Nishimoto, A. Nishizawa, S. Nissanke, E. Nitoglia, F. Nocera, M. Norman, C. North, S. Nozaki, G. Nurbek, L. K. Nuttall, Y. Obayashi, J. Oberling, B. D. O’Brien, J. O’Dell, E. Oelker, W. Ogaki, G. Oganesyan, J. J. Oh, K. Oh, S. H. Oh, M. Ohashi, T. Ohashi, M. Ohkawa, F. Ohme, H. Ohta, M. A. Okada, Y. Okutani, C. Olivetto, K. Oohara, R. Oram, B. O’Reilly, R. G. Ormiston, N. D. Ormsby, R. O’Shaughnessy, E. O’Shea, S. Oshino, S. Ossokine, C. Osthelder, S. Otabe, D. J. Ottaway, H. Overmier, A. E. Pace, G. Pagano, R. Pagano, M. A. Page, G. Pagliaroli, A. Pai, S. A. Pai, S. Pal, J. R. Palamos, O. Palashov, C. Palomba, H. Pan, K.-C. Pan, P. K. Panda, P. T. H. Pang, C. Pankow, F. Pannarale, B. C. Pant, F. H. Panther, F. Paoletti, A. Paoli, A. Paolone, G. Pappas, A. Parisi, H. Park, J. Park, W. Parker, D. Pascucci, A. Pasqualetti, R. Passaquieti, D. Passuello, M. Patel, M. Pathak, B. Patricelli, A. S. Patron, S. Paul, E. Payne, M. Pedraza, R. Pedurand, M. Pegoraro, A. Pele, F. E. Pena Arellano, S. Penano, S. Penn, A. Perego, A. Pereira, T. Pereira, C. J. Perez, C. Perigois, C. C. Perkins, A. Perreca, S. Perries, D. Pesios, J. Petermann, D. Petterson, H. P. Pfeiffer, H. Pham, K. A. Pham, K. S. Phukon, H. Phurailatpam, O. J. Piccinni, M. Pichot, M. Piendibene, F. Piergiovanni, L. Pierini, V. Pierro, G. Pillant, M. Pillas, F. Pilo, L. Pinard, C. Pineda-Bosque, I. M. Pinto, M. Pinto, B. J. Piotrzkowski, K. Piotrzkowski, M. Pirello, M. D. Pitkin, A. Placidi, E. Placidi, M. L. Planas, W. Plastino, C. Pluchar, R. Poggiani, E. Polini, D. Y. T. Pong, S. Ponrathnam, E. K. Porter, R. Poulton, A. Poverman, J. Powell, M. Pracchia, T. Pradier, A. K. Prajapati, K. Prasai, R. Prasanna, G. Pratten, M. Principe, G. A. Prodi, L. Prokhorov, P. Prosposito, L. Prudenzi, A. Puecher, M. Punturo, F. Puosi, P. Puppo, M. Purrer, H. Qi, N. Quartey, V. Quetschke, P. J. Quinonez, R. Quitzow-James, F. J. Raab, G. Raaijmakers, H. Radkins, N. Radulesco, P. Raffai, S. X. Rail, S. Raja, C. Rajan, K. E. Ramirez, T. D. Ramirez, A. Ramos-Buades, J. Rana, P. Rapagnani, A. Ray, V. Raymond, N. Raza, M. Razzano, J. Read, L. A. Rees, T. Regimbau, L. Rei, S. Reid, S. W. Reid, D. H. Reitze, P. Relton, A. Renzini, P. Rettegno, B. Revenu, A. Reza, M. Rezac, F. Ricci, D. Richards, J. W. Richardson, L. Richardson, G. Riemenschneider, K. Riles, S. Rinaldi, K. Rink, N. A. Robertson, R. Robie, F. Robinet, A. Rocchi, S. Rodriguez, L. Rolland, J. G. Rollins, M. Romanelli, R. Romano, C. L. Romel, A. Romero, I. M. Romero-Shaw, J. H. Romie, S. Ronchini, L. Rosa, C. A. Rose, D. Rosinska, M. P. Ross, S. Rowan, S. J. Rowlinson, S. Roy, Santosh Roy, Soumen Roy, D. Rozza, P. Ruggi, K. Ruiz-Rocha, K. Ryan, S. Sachdev, T. Sadecki, J. Sadiq, S. Saha, Y. Saito, K. Sakai, M. Sakellariadou, S. Sakon, O. S. Salafia, F. Salces-Carcoba, L. Salconi, M. Saleem, F. Salemi, A. Samajdar, E. J. Sanchez, J. H. Sanchez, L. E. Sanchez, N. Sanchis-Gual, J. R. Sanders, A. Sanuy, T. R. Saravanan, N. Sarin, B. Sassolas, H. Satari, O. Sauter, R. L. Savage, V. Savant, T. Sawada, H. L. Sawant, S. Sayah, D. Schaetzl, M. Scheel, J. Scheuer, M. G. Schiworski, P. Schmidt, S. Schmidt, R. Schnabel, M. Schneewind, R. M. S. Schofield, A. Schonbeck, B. W. Schulte, B. F. Schutz, E. Schwartz, J. Scott, S. M. Scott, M. Seglar-Arroyo, Y. Sekiguchi, D. Sellers, A. S. Sengupta, D. Sentenac, E. G. Seo, V. Sequino, A. Sergeev, Y. Setyawati, T. Shaffer, M. S. Shahriar, M. A. Shaikh, B. Shams, L. Shao, A. Sharma, P. Sharma, P. Shawhan, N. S. Shcheblanov, A. Sheela, Y. Shikano, M. Shikauchi, H. Shimizu, K. Shimode, H. Shinkai, T. Shishido, A. Shoda, D. H. Shoemaker, D. M. Shoemaker, S. ShyamSundar, M. Sieniawska, D. Sigg, L. Silenzi, L. P. Singer, D. Singh, M. K. Singh, N. Singh, A. Singha, A. M. Sintes, V. Sipala, V. Skliris, B. J. J. Slagmolen, T. J. Slaven-Blair, J. Smetana, J. R. Smith, L. Smith, R. J. E. Smith, J. Soldateschi, S. N. Somala, K. Somiya, I. Song, K. Soni, S. Soni, V. Sordini, F. Sorrentino, N. Sorrentino, R. Soulard, T. Souradeep, E. Sowell, V. Spagnuolo, A. P. Spencer, M. Spera, P. Spinicelli, A. K. Srivastava, V. Srivastava, K. Staats, C. Stachie, F. Stachurski, D. A. Steer, J. Steinlechner, S. Steinlechner, N. Stergioulas, D. J. Stops, M. Stover, K. A. Strain, L. C. Strang, G. Stratta, M. D. Strong, A. Strunk, R. Sturani, A. L. Stuver, M. Suchenek, S. Sudhagar, V. Sudhir, R. Sugimoto, H. G. Suh, A. G. Sullivan, T. Z. Summerscales, L. Sun, S. Sunil, A. Sur, J. Suresh, P. J. Sutton, Takamasa Suzuki, Takanori Suzuki, Toshikazu Suzuki, B. L. Swinkels, M. J. Szczepanczyk, P. Szewczyk, M. Tacca, H. Tagoshi, S. C. Tait, H. Takahashi, R. Takahashi, S. Takano, H. Takeda, M. Takeda, C. J. Talbot, C. Talbot, K. Tanaka, Taiki Tanaka, Takahiro Tanaka, A. J. Tanasijczuk, S. Tanioka, D. B. Tanner, D. Tao, L. Tao, R. D. Tapia, E. N. Tapia San Martin, C. Taranto, A. Taruya, J. D. Tasson, R. Tenorio, J. E. S. Terhune, L. Terkowski, M. P. Thirugnanasambandam, M. Thomas, P. Thomas, E. E. Thompson, J. E. Thompson, S. R. Thondapu, K. A. Thorne, E. Thrane, Shubhanshu Tiwari, Srishti Tiwari, V. Tiwari, A. M. Toivonen, A. E. Tolley, T. Tomaru, T. Tomura, M. Tonelli, Z. Tornasi, A. Torres-Forne, C. I. Torrie, I. Tosta e Melo, D. Toyra, A. Trapananti, F. Travasso, G. Traylor, M. Trevor, M. C. Tringali, A. Tripathee, L. Troiano, A. Trovato, L. Trozzo, R. J. Trudeau, D. Tsai, K. W. Tsang, T. Tsang, J-S. Tsao, M. Tse, R. Tso, S. Tsuchida, L. Tsukada, D. Tsuna, T. Tsutsui, K. Turbang, M. Turconi, D. Tuyenbayev, A. S. Ubhi, T. Uchiyama, R. P. Udall, A. Ueda, T. Uehara, K. Ueno, G. Ueshima, C. S. Unnikrishnan, A. L. Urban, T. Ushiba, A. Utina, G. Vajente, A. Vajpeyi, G. Valdes, M. Valentini, V. Valsan, N. van Bakel, M. van Beuzekom, M. van Dael, J. F. J. van den Brand, C. Van Den Broeck, D. C. Vander-Hyde, H. van Haevermaet, J. V. van Heijningen, M. H. P. M. van Putten, N. van Remortel, M. Vardaro, A. F. Vargas, V. Varma, M. Vasuth, A. Vecchio, G. Vedovato, J. Veitch, P. J. Veitch, J. Venneberg, G. Venugopalan, D. Verkindt, P. Verma, Y. Verma, S. M. Vermeulen, D. Veske, F. Vetrano, A. Vicere, S. Vidyant, A. D. Viets, A. Vijaykumar, V. Villa-Ortega, J.-Y. Vinet, A. Virtuoso, S. Vitale, H. Vocca, E. R. G. von Reis, J. S. A. von Wrangel, C. Vorvick, S. P. Vyatchanin, L. E. Wade, M. Wade, K. J. Wagner, R. C. Walet, M. Walker, G. S. Wallace, L. Wallace, J. Wang, J. Z. Wang, W. H. Wang, R. L. Ward, J. Warner, M. Was, T. Washimi, N. Y. Washington, J. Watchi, B. Weaver, C. R. Weaving, S. A. Webster, M. Weinert, A. J. Weinstein, R. Weiss, C. M. Weller, R. A. Weller, F. Wellmann, L. Wen, P. Weßels, K. Wette, J. T. Whelan, D. D. White, B. F. Whiting, C. Whittle, D. Wilken, D. Williams, M. J. Williams, A. R. Williamson, J. L. Willis, B. Willke, D. J. Wilson, C. C. Wipf, T. Wlodarczyk, G. Woan, J. Woehler, J. K. Wofford, D. Wong, I. C. F. Wong, M. Wright, C. Wu, D. S. Wu, H. Wu, D. M. Wysocki, L. Xiao, T. Yamada, H. Yamamoto, K. Yamamoto, T. Yamamoto, K. Yamashita, R. Yamazaki, F. W. Yang, K. Z. Yang, L. Yang, Y.-C. Yang, Y. Yang, Yang Yang, M. J. Yap, D. W. Yeeles, S.-W. Yeh, A. B. Yelikar, M. Ying, J. Yokoyama, T. Yokozawa, J. Yoo, T. Yoshioka, Hang Yu, Haocun Yu, H. Yuzurihara, A. Zadrozny, M. Zanolin, S. Zeidler, T. Zelenova, J.-P. Zendri, M. Zevin, M. Zhan, H. Zhang, J. Zhang, L. Zhang, R. Zhang, T. Zhang, Y. Zhang, C. Zhao, G. Zhao, Y. Zhao, Yue Zhao, R. Zhou, Z. Zhou, X. J. Zhu, Z.-H. Zhu, A. B. Zimmerman, M. E. Zucker, and J. Zweizig The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA CollaborationWe present Fermi Gamma-ray Burst Monitor (Fermi-GBM) and Swift Burst Alert Telescope (Swift-BAT) searches for gamma-ray/X-ray counterparts to gravitational wave (GW) candidate events identified during the third observing run of the Advanced LIGO and Advanced Virgo detectors. Using Fermi-GB
QoQ: a Q-transform based test for Gravitational Wave transient events
No full textThe observation of transient gravitational waves is hindered by the presence
of transient noise, colloquially referred to as glitches. These glitches can
often be misidentified as gravitational waves by searches for unmodeled
transients using the excess-power type of methods and sometimes even excite
template waveforms for compact binary coalescences while using matched filter
techniques. They thus create a significant background in the searches. This
background is more critical in getting identified promptly and efficiently
within the context of real-time searches for gravitational-wave transients.
Such searches are the ones that have enabled multi-messenger astrophysics with
the start of the Advanced LIGO and Advanced Virgo data taking in 2015 and they
will continue to enable the field for further discoveries. With this work we
propose and demonstrate the use of a signal-based test that quantifies the
fidelity of the time-frequency decomposition of the putative signal based on
first principles on how astrophysical transients are expected to be registered
in the detectors and empirically measuring the instrumental noise. It is based
on the Q-transform and a measure of the occupancy of the corresponding
time-frequency pixels over select time-frequency volumes; we call it ``QoQ''.
Our method shows a 40% reduction in the number of retraction of public alerts
that were issued by the LIGO-Virgo-KAGRA collaborations during the third
observing run with negligible loss in sensitivity. Receiver Operator
Characteristic measurements suggest the method can be used in online and
offline searches for transients, reducing their background significantly.Comment: 39 Figures, 5 Table
Virgo detector characterization and data quality: Tools
No full textDetector characterization and data quality studies-collectively referred to as DetChar activities in this article-are paramount to the scientific exploitation of the joint dataset collected by the LIGO-Virgo-KAGRA global network of ground-based gravitational-wave (GW) detectors. They take place during each phase of the operation of the instruments (upgrade, tuning and optimization, data taking), are required at all steps of the dataflow (from data acquisition to the final list of GW events) and operate at various latencies (from near real-time to vet the public alerts to offline analyses). This work requires a wide set of tools which have been developed over the years to fulfill the requirements of the various DetChar studies: data access and bookkeeping; global monitoring of the instruments and of the different steps of the data processing; studies of the global properties of the noise at the detector outputs; identification and follow-up of noise peculiar features (whether they be transient or continuously present in the data); quick processing of the public alerts. The present article reviews all the tools used by the Virgo DetChar group during the third LIGO-Virgo Observation Run (O3, from April 2019 to March 2020), mainly to analyze the Virgo data acquired at EGO. Concurrently, a companion article focuses on the results achieved by the DetChar group during the O3 run using these tools
A Search Using GEO600 for Gravitational Waves Coincident with Fast Radio Bursts from SGR 1935+2154
No full textThe magnetar SGR 1935+2154 is the only known Galactic source of fast radio bursts (FRBs). FRBs from SGR 1935 +2154 were first detected by the Canadian Hydrogen Intensity Mapping Experiment (CHIME)/FRB and the Survey for Transient Astronomical Radio Emission 2 in 2020 April, after the conclusion of the LIGO, Virgo, and KAGRA Collaborations’ O3 observing run. Here, we analyze four periods of gravitational wave (GW) data from the GEO600 detector coincident with four periods of FRB activity detected by CHIME/FRB, as well as X-ray glitches and X-ray bursts detected by NICER and NuSTAR close to the time of one of the FRBs. We do not detect any significant GW emission from any of the events. Instead, using a short-duration GW search (for bursts <1 s) we derive 50% (90%) upper limits of 1048 (1049) erg for GWs at 300 Hz and 1049 (1050) erg at 2 kHz, and constrain the GW-to-radio energy ratio to <1014−1016. We also derive upper limits from a long-duration search for bursts with durations between 1 and 10 s. These represent the strictest upper limits on concurrent GW emission from FRBs
GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run
No full textThe third Gravitational-Wave Transient Catalog (GWTC-3) describes signals
detected with Advanced LIGO and Advanced Virgo up to the end of their third
observing run. Updating the previous GWTC-2.1, we present candidate
gravitational waves from compact binary coalescences during the second half of
the third observing run (O3b) between 1 November 2019, 15:00 UTC and 27 March
2020, 17:00 UTC. There are 35 compact binary coalescence candidates identified
by at least one of our search algorithms with a probability of astrophysical
origin . Of these, 18 were previously reported as
low-latency public alerts, and 17 are reported here for the first time. Based
upon estimates for the component masses, our O3b candidates with
are consistent with gravitational-wave signals from
binary black holes or neutron star-black hole binaries, and we identify none
from binary neutron stars. However, from the gravitational-wave data alone, we
are not able to measure matter effects that distinguish whether the binary
components are neutron stars or black holes. The range of inferred component
masses is similar to that found with previous catalogs, but the O3b candidates
include the first confident observations of neutron star-black hole binaries.
Including the 35 candidates from O3b in addition to those from GWTC-2.1, GWTC-3
contains 90 candidates found by our analysis with
across the first three observing runs. These observations of compact binary
coalescences present an unprecedented view of the properties of black holes and
neutron stars.Comment: 88 pages (10 pages author list, 31 pages main text, 1 page
acknowledgements, 24 pages appendices, 22 pages bibliography), 17 figures, 16
tables. Update to match version to be published in Physical Review X. Data
products available from https://gwosc.org/GWTC-3
Search for Gravitational Waves Emitted from SN2023ixf
No full textWe present the results of a search for gravitational-wave transients associated with core-collapse supernova SN 2023ixf, which was observed in the galaxy Messier 101 via optical emission on 2023 May 19, during the LIGO–Virgo–KAGRA 15th Engineering Run. We define a five-day on-source window during which an accompanying gravitational-wave signal may have occurred. No gravitational waves have been identified in data when at least two gravitational-wave observatories were operating, which covered ∼14% of this five-day window. We report the search detection efficiency for various possible gravitational-wave emission models. Considering the distance to M101 (6.7 Mpc), we derive constraints on the gravitational-wave emission mechanism of core-collapse supernovae across a broad frequency spectrum, ranging from 50 Hz to 2 kHz, where we assume the gravitational-wave emission occurred when coincident data are available in the on-source window. Considering an ellipsoid model for a rotating proto-neutron star, our search is sensitive to gravitational-wave energy 1 × 10−4 M⊙c2 and luminosity 2.6 × 10−4 M⊙c2 s−1 for a source emitting at 82 Hz. These constraints are around an order of magnitude more stringent than those obtained so far with gravitational-wave data. The constraint on the ellipticity of the proto-neutron star that is formed is as low as 1.08, at frequencies above 1200 Hz, surpassing past results
Constraints on the Cosmic Expansion History from GWTC–3
No full textWe use 47 gravitational wave sources from the Third LIGO-Virgo-Kamioka Gravitational Wave Detector Gravitational Wave Transient Catalog (GWTC-3) to estimate the Hubble parameter H(z), including its current value, the Hubble constant H0. Each gravitational wave (GW) signal provides the luminosity distance to the source, and we estimate the corresponding redshift using two methods: the redshifted masses and a galaxy catalog. Using the binary black hole (BBH) redshifted masses, we simultaneously infer the source mass distribution and H(z). The source mass distribution displays a peak around 34Me, followed by a drop-off. Assuming this mass scale does not evolve with the redshift results in a H(z) measurement, yielding H0 = 68+12-8 km s-1 Mpc-1 (68% credible interval) when combined with the H0 measurement from GW170817 and its electromagnetic counterpart. This represents an improvement of 17% with respect to the H0 estimate from GWTC-1. The second method associates each GW event with its probable host galaxy in the catalog GLADE+, statistically marginalizing over the redshifts of each event's potential hosts. Assuming a fixed BBH population, we estimate a value of H0 = 68+8-6 km s-1 Mpc-1 with the galaxy catalog method, an improvement of 42% with respect to our GWTC-1 result and 20% with respect to recent H0 studies using GWTC-2 events. However, we show that this result is strongly impacted by assumptions about the BBH source mass distribution; the only event which is not strongly impacted by such assumptions (and is thus informative about H0) is the well-localized event GW190814
All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO and Advanced Virgo O3 data
No full textWe present results of an all-sky search for continuous gravitational waves
which can be produced by spinning neutron stars with an asymmetry around their
rotation axis, using data from the third observing run of the Advanced LIGO and
Advanced Virgo detectors. Four different analysis methods are used to search in
a gravitational-wave frequency band from 10 to 2048 Hz and a first frequency
derivative from to Hz/s. No statistically-significant
periodic gravitational-wave signal is observed by any of the four searches. As
a result, upper limits on the gravitational-wave strain amplitude are
calculated. The best upper limits are obtained in the frequency range of 100 to
200 Hz and they are at 95\% confidence-level. The
minimum upper limit of is achieved at a frequency 111.5
Hz. We also place constraints on the rates and abundances of nearby planetary-
and asteroid-mass primordial black holes that could give rise to continuous
gravitational-wave signals.Comment: 23 main text pages, 17 figure
Search for gravitational-wave transients associated with magnetar bursts in Advanced LIGO and Advanced Virgo data from the third observing run
No full textGravitational waves are expected to be produced from neutron staroscillations associated with magnetar giant flares and short bursts. We presentthe results of a search for short-duration (milliseconds to seconds) andlong-duration ( 100 s) transient gravitational waves from 13 magnetarshort bursts observed during Advanced LIGO, Advanced Virgo and KAGRA's thirdobservation run. These 13 bursts come from two magnetars, SGR 19352154 andSwift J1818.01607. We also include three other electromagnetic burst eventsdetected by Fermi GBM which were identified as likely coming from one or moremagnetars, but they have no association with a known magnetar. No magnetargiant flares were detected during the analysis period. We find no evidence ofgravitational waves associated with any of these 16 bursts. We place upperbounds on the root-sum-square of the integrated gravitational-wave strain thatreach at 100 Hz for theshort-duration search and at Hzfor the long-duration search, given a detection efficiency of 50%. For aringdown signal at 1590 Hz targeted by the short-duration search the limit isset to . Using the estimated distanceto each magnetar, we derive upper bounds on the emitted gravitational-waveenergy of erg ( erg) for SGR19352154 and erg ( erg) for SwiftJ1818.01607, for the short-duration (long-duration) search. Assumingisotropic emission of electromagnetic radiation of the burst fluences, weconstrain the ratio of gravitational-wave energy to electromagnetic energy forbursts from SGR 19352154 with available fluence information. The lowest ofthese ratios is .<br
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