16,036 research outputs found
The rate of extreme coronal line emitters in the Baryon Oscillation Spectroscopic Survey LOWZ sample [Dataset]
J. Callow et al. -- Supplementary material to DESI's publication : The rate of extreme coronal line emitting galaxies in the Baryon Oscillation Spectroscopic Survey LOWZ sample to comply with the data management plan. The file contains data points on figures and spectra.Peer reviewe
The rate of extreme coronal line emitters in the Baryon Oscillation Spectroscopic Survey LOWZ sample
J. Callow et al.Extreme coronal line emitters (ECLEs) are a rare class of galaxy that exhibit strong, high-ionization iron coronal emission lines in their spectra. In some cases, these lines are transient and may be the result of tidal disruption event (TDEs). To test this connection, we calculate the rate of variable ECLEs (vECLEs) at redshift. We search for ECLEs in the Baryon Oscillation Spectroscopic Survey (BOSS) LOWZ sample and discover two candidate ECLEs. Using follow-up spectra from the Dark Energy Spectroscopic Instrument and Gemini Multi-Object Spectrograph, and mid-infrared observations from the Wide-field Infrared Survey Explorer, we determine that one of these galaxies is a vECLE. Using this galaxy, we calculate the galaxy-normalized vECLE rate at redshift to be and the mass-normalized rate to be. This is then converted to a volumetric rate of. Formally, the LOWZ vECLE rates are times lower than the rates calculated from the Sloan Digital Sky Survey Legacy sample at redshift. However, given the large uncertainties on both measurements, they are consistent with each other at. Both the galaxy-normalized and volumetric rates are one to two orders of magnitude lower than TDE rates from the literature, consistent with vECLEs being caused by per cent of all TDEs.This work was supported by the Science and Technology Facilities Council [grants ST/S000550/1 and ST/W001225/1]. Funding for the Sloan Digital Sky Survey (SDSS) and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the U.S. Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, and the Max Planck Society, and the Higher Education Funding Council for England. The SDSS Website is http://www.sdss.org/. The SDSS is managed by the Astrophysical Research Consortium (ARC) for the Participating Institutions. The Participating Institutions are the American Museum of Natural History, Astrophysical Institute Potsdam, University of Basel, University of Cambridge, Case Western Reserve University, The University of Chicago, Drexel University, Fermilab, the Institute for Advanced Study, the Japan Participation Group, The Johns Hopkins University, the Joint Institute for Nuclear Astrophysics, the Kavli Institute for Particle Astrophysics and Cosmology, the Korean Scientist Group, the Chinese Academy of Sciences (LAMOST), Los Alamos National Laboratory, the Max-Planck-Institute for Astronomy (MPIA), the Max-Planck-Institute for Astrophysics (MPA), New Mexico State University, Ohio State University, University of Pittsburgh, University of Portsmouth, Princeton University, the United States Naval Observatory, and the University of Washington. This material is based upon work supported by the U.S. Department of Energy (DOE), Office of Science, Office of High-Energy Physics, under Contract no. DE-AC02-05CH11231, and by the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility under the same contract. Additional support for DESI was provided by the U.S. National Science Foundation (NSF), Division of Astronomical Sciences under Contract No. AST-0950945 to the NSF’s National Optical-Infrared Astronomy Research Laboratory; the Science and Technology Facilities Council of the United Kingdom; the Gordon and Betty Moore Foundation; the Heising–Simons Foundation; the French Alternative Energies and Atomic Energy Commission (CEA); the National Council of Humanities, Science and Technology of Mexico (CONAHCYT); the Ministry of Science, Innovation and Universities of Spain (MICIU/AEI/10.13039/501100011033), and by the DESI Member Institutions: https://www.desi.lbl.gov/collaborating-institutions. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the U. S. National Science Foundation, the U. S. Department of Energy, or any of the listed funding agencies. This research has made use of NASA’s Astrophysics Data System Bibliographic Services and the NASA/IPAC Infrared Science Archive, which is funded by the National Aeronautics and Space Administration (NASA) and operated by the California Institute of Technology. This publication also makes use of data products from NEOWISE, which is a project of the Jet Propulsion Laboratory/California Institute of Technology, funded by the Planetary Science Division of NASA. The CRTS survey is supported by the U.S. National Science Foundation (NSF) under grants AST-0909182 and AST-1313422.Peer reviewe
Dr. Joseph H. Peck, author of "All about men"
Black and white photograph of Dr. Joseph H. Peck, author of "All about men," about 1958, when the book was published
Histoire Complete de Joseph
The Joseph story in Genesis was a subject of great interest to Syriac writers, and in this volume Bedjan presents the Syriac text (in vocalized East Syriac script) of a lengthy and highly praised poem on the subject, sometimes attributed to Ephrem, but more recently to the fifth-century author Balai. The poem consists of twelve homilies (memre) in the 7 + 7 meter, the subjects of which are: 1. On jealousy and the sale of Joseph, 2. Bringing his coat to his father, 3. Going down to Egypt and his sale to Potiphar, 4. His temptation, 5. His imprisonment, 6. His exaltation, 7. His brothers going down to Egypt, 8. Benjamin going down to Egypt, 9. Joseph revealing himself to his brothers, 10. News of Joseph reaching his father, 11. The death of Jacob, and 12. Joseph’s death. An appendix contains a poem on the translation of Joseph’s bones
A Tripartite Post-Recession Rebalancing
In this latest Advance & Rutgers Report, entitled “A Tripartite Post-Recession Rebalancing,” Dean James W. Hughes and Professor Joseph J. Seneca deliver an incisive assessment of the current market conditions and obstacles in the path of our economic recovery. They offer a statistical cautionary tale that the private and public sector need to hear and acknowledge in order for the economy to make continued progress.This report was published as Issue Paper Number 7, November 2011, in Advance & Rutgers Report
The rate of extreme coronal line emitting galaxies in the Sloan Digital Sky Survey and their relation to tidal disruption events
The data underlying this article are available in the article and in its online supplementary material through Zenodo at Callow et al. (2024). The reduced data and derived measurements in this article will be shared on reasonable request to the corresponding author.J. Callow et al.High-ionization iron coronal lines (CLs) are a rare phenomenon observed in galaxy and quasi-stellar object spectra that are thought to be created by high-energy emission from active galactic nuclei and certain types of transients. In cases known as extreme coronal line emitting galaxies (ECLEs), these CLs are strong and fade away on a time-scale of years. The most likely progenitors of these variable CLs are tidal disruption events (TDEs), which produce sufficient high-energy emission to create and sustain the CLs over these time-scales. To test the possible connection between ECLEs and TDEs, we present the most complete variable ECLE rate calculation to date and compare the results to TDE rates from the literature. To achieve this, we search for ECLEs in the Sloan Digital Sky Survey (SDSS). We detect sufficiently strong CLs in 16 galaxies, more than doubling the number previously found in SDSS. Using follow-up spectra from the Dark Energy Spectroscopic Instrument and Gemini Multi-Object Spectrograph, Wide-field Infrared Survey Explorer mid-infrared observations, and Liverpool Telescope optical photometry, we find that none of the nine new ECLEs evolve in a manner consistent with that of the five previously discovered variable ECLEs. Using this sample of five variable ECLEs, we calculate the galaxy-normalized rate of variable ECLEs in SDSS to be RG = 3.6 +2.6 −1.8 (statistical) +5.1 −0.0 (systematic) × 10−6 galaxy−1 yr−1. The mass-normalized rate is RM = 3.1 +2.3 −1.5 (statistical) +4.4 −0.0 (systematic) × 10−17 M−1 yr−1 and the volumetric rate is RV = 7 +20 −5 (statistical) +10 −0.0 (systematic) × 10−9 Mpc−3 yr−1. Our rates are one to two orders of magnitude lower than TDE rates from the literature, which suggests that only 10–40 per cent of all TDEs produce variable ECLEs. Additional uncertainties in the rates arising from the structure of the interstellar medium have yet to be included.This work was supported by the Science & Technology Facilities Council (grants ST/S000550/1 and ST/W001225/1).
Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the U.S. Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, and the Max Planck Society, and the Higher Education Funding Council for England. The SDSS Website is http://www.sdss.org/.
The SDSS is managed by the Astrophysical Research Consortium (ARC) for the Participating Institutions. The Participating Institutions are the American Museum of Natural History, Astrophysical Institute Potsdam, University of Basel, University of Cambridge, Case Western Reserve University, The University of Chicago, Drexel University, Fermilab, the Institute for Advanced Study, the Japan Participation Group, The Johns Hopkins University, the Joint Institute for Nuclear Astrophysics, the Kavli Institute for Particle Astrophysics and Cosmology, the Korean Scientist Group, the Chinese Academy of Sciences (LAMOST), Los Alamos National Laboratory, the Max-Planck-Institute for Astronomy (MPIA), the Max-Planck-Institute for Astrophysics (MPA), New Mexico State University, Ohio State University, University of Pittsburgh, University of Portsmouth, Princeton University, the United States Naval Observatory, and the University of Washington.
This material is based upon work supported by the U.S. Department of Energy (DOE), Office of Science, Office of High-Energy Physics, under Contract No. DE-AC02-05CH11231, and by the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility under the same contract. Additional support for DESI was provided by the U.S. National Science Foundation (NSF), Division of Astronomical Sciences under Contract No. AST-0950945 to the NSF’s National Optical-Infrared Astronomy Research Laboratory; the Science and Technology Facilities Council of the United Kingdom; the Gordon and Betty Moore Foundation; the Heising-Simons Foundation; the French Alternative Energies and Atomic Energy Commission (CEA); the National Council of Science and Technology of Mexico (CONACYT); the Ministry of Science and Innovation of Spain (MICINN), and by the DESI Member Institutions: https://www.desi.lbl.gov/collaborating-institutions. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the U.S. National Science Foundation, the U.S. Department of Energy, or any of the listed funding agencies.
The authors are honoured to be permitted to conduct scientific research on Iolkam Du’ag (Kitt Peak), a mountain with particular significance to the Tohono O’odham Nation.
This research has made use of NASA’s Astrophysics Data System Bibliographic Services and the NASA/IPAC Infrared Science Archive, which is funded by the National Aeronautics and Space Administration (NASA) and operated by the California Institute of Technology. This publication also makes use of data products from NEOWISE, which is a project of the Jet Propulsion Laboratory/California Institute of Technology, funded by the Planetary Science Division of NASA. The CRTS survey is supported by the U.S. National Science Foundation (NSF) under grants AST-0909182 and AST-1313422.
Based on observations obtained at the international Gemini Observatory, a programme of NSF’s NOIRLab, processed using dragons (Data Reduction for Astronomy from Gemini Observatory North and South), which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation on behalf of the Gemini Observatory partnership: the National Science Foundation (United States), National Research Council (Canada), Agencia Nacional de Investigación y Desarrollo (Chile), Ministerio de Ciencia, Tecnología e Innovación (Argentina), Ministério da Ciência, Tecnologia, Inovações e Comunicações (Brazil), and Korea Astronomy and Space Science Institute (Republic of Korea). This work was enabled by observations made from the Gemini North telescope, located within the Maunakea Science Reserve and adjacent to the summit of Maunakea. We are grateful for the privilege of observing the Universe from a place that is unique in both its astronomical quality and its cultural significance.Peer reviewe
Letter from Joseph R. Goodman to Akiko Nishioka, May 27, 1942
Letter from Joseph R. Goodman to Akiko Nishioka, regarding Japanese American students from the west coast who resettled at colleges and universities in the east.Personal correspondence, organizational records, government documents, publications, and other papers created or collected by Joseph R. Goodman documenting the forced removal and incarceration of Japanese Americans during World War II, as well as organized resistance to incarceration. Included in the collection are records of the Japanese Young Men's Christian Association and the Japanese American Citizens' League in San Francisco, including papers of the Japanese YMCA's executive secretary Lincoln Kanai; Sakai family papers; Goodman's correspondence to and from Japanese American incarcerees, organizations opposing forced removal and incarceration of Japanese Americans, the War Relocation Authority, and others; publications, photographs, and ephemera from the Topaz Relocation Center, where Goodman taught high school; War Relocation Authority records and publications; and newspaper clippings, pamphlets, and reports about forced removal and incarceration created by various government, religious, and civic organizations, in California and nationwide
Joseph Crespino Interviews Thomas Mullen, Author of Darktown
Historian Joseph Crespino interviews Decatur, Georgia-based historical novelist, Thomas Mullen, author of Darktown (New York: Simon and Schuster, 2016), The Revisionists (London: Hodder & Stoughton, 2011), The Many Deaths of the Firefly Brothers (New York: Random House, 2010), and The Last Town on Earth (New York: Random House, 2006)
Supporting disabled children and their families in Scotland: A review of policy and research
The Joseph Rowntree Foundation has been supporting research about disabled children and their families for a number of years. An earlier Foundations covering the messages from these projects has already been published (1). This Foundations places the messages from that work into the Scottish context. It gives an overview of current policies affecting disabled children and their families in Scotland and draws on research carried out north of the border
The new enfant du siècle: Joseph de Maistre as a writer
The essays contained within this volume were first presented at Reappraisals/Reconsidérations, the Fifth International Colloquium on Joseph de Maistre, held at Jesus College, Cambridge on 4 and 5 December 2008.Series editor-in-chief: Guy Rowlands, University of St AndrewsJoseph de Maistre's reputation as a writer is legendary. His style, unique and alive, moulded the French language anew. It sabotaged his attempts at anonymous publication and earned him, through the centuries, the praises of enemies and admirers. Yet the relationship between Maistre's thought and writing remains ill-known. This collection is the first to examine how Maistre's ideas – including his denunciation of the written word – intersected with his writing practices and personas. The essays disclose an author formed by duty and affectionate relationships, by the conventions of public combat, by an intense sense of history, and by the imperatives of Revolution.Introduction: assessing Maistre's style and rhetoric / Richard A. Lebrun -- Joseph de Maistre as pamphleteer / Richard A. Lebrun -- Joseph de Maistre, letter writer / Pierre Glaudes ; translated by Kevin Michael Erwin and Richard A. Lebrun -- Joseph de Maistre: the paradox of the writer / Benjamin Thurston -- Epilogue: the forced inhabitant of history / Carolina ArmenterosPublisher PD
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