785 research outputs found
J. D. Wilson Collection
No full textPhotograph of O. A. Smith, a Cherokee. Photo by Harmon Theodore Swearingen, Guthrie, OK
J. D. Wilson Collection
No full textPhotograph of O. A. Smith, a Cherokee. Photo by Harmon Theodore Swearingen, Guthrie, OK
J. D. Wilson Collection
No full textPhotograph of Mrs. Florence Smith, a Cherokee, daughter of Mrs. Emma Breedlove. Photo by Harmon Theodore Swearingen, Guthrie, OK
Revisiting the relativistic ejection event in XTE J1550-564 during the 1998 outburst
No full textWe revisit the discovery outburst of the X-ray transient XTE J1550−564 during which relativistic jets were observed in 1998 September, and review the radio images obtained with the Australian Long Baseline Array, and light curves obtained with the Molonglo Observatory Synthesis Telescope and the Australia Telescope Compact Array. Based on Hi spectra, we constrain the source distance to between 3.3 and 4.9 kpc. The radio images, taken some 2 d apart, show the evolution of an ejection event. The apparent separation velocity of the two outermost ejecta is at least 1.3c and may be as large as 1.9c; when relativistic effects are taken into account, the inferred true velocity is ≥ 0.8c. The flux densities appear to peak simultaneously during the outburst, with a rather flat (although still optically thin) spectral index of −0.2
UvA-DARE (Digital Academic Repository) Link to publication Citation for published version (APA): QUENCHING OF THE RADIO JET DURING THE X-RAY HIGH STATE OF GX 339Ϫ4
No full textQuenching of the radio jet during the x-ray high state in GX 339-4 Fender, R.P.; Corbel, S.; Tzioumis, A.K.; Sood, R.; McIntyre, V.; Campbell-Wilson, D.; Durouchoux, P.; Harmon, B.A. Published in: Astrophysical Journal DOI: 10.1086/312128 Link to publication Citation for published version (APA): Fender, R. P., Corbel, S., Tzioumis, A. K., Sood, R., McIntyre, V., Campbell-Wilson, D., ... Harmon, B. A. (1999). Quenching of the radio jet during the x-ray high state in GX 339-4. Astrophysical Journal, 519, L165-L168. https://doi.org/10.1086/312128 General rights It is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulations If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: https://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. Download date: 29 Jun 2019 L165 The Astrophysical Journal, 519:L165-L168, 1999 July 10 ᭧ 1999. The American Astronomical Society. All rights reserved. Printed in U.S.A. ABSTRACT We have observed the black hole candidate X-ray binary GX 339Ϫ4 at radio wavelengths before, during, and after the 1998 high/soft X-ray state transition. We find that the radio emission from the system is strongly correlated with the hard X-ray emission and is reduced by a factor of ≥25 during the high/soft state compared with the more usual low/hard state. At the points of state transition, we note brief periods of unusually optically thin radio emission that may correspond to discrete ejection events. We propose that in the low/hard state, black hole X-ray binaries produce a quasi-continuous outflow, that in the high/soft state, this outflow is suppressed, and that state transitions often result in one or more discrete ejection events. Future models for low/hard states, such as advection-dominated solutions, need to take into account the strong outflow of relativistic electrons from the system. We propose that the inferred Comptonizing corona and the base of the jetlike outflow are the same thing, based on the strong correlation between radio and hard X-ray emission in GX 339Ϫ4 and other X-ray binaries and on the similarity in inferred location and composition of these two components. QUENCHING OF THE RADIO JET DURING THE X-RAY HIGH STATE OF GX 339Ϫ
J. D. Wilson Collection
No full textPortrait photograph of Cherokee Florence Smith, who was the daughter of Emma Breedlove
Assessment of available anatomical characters for linking living mammals to fossil taxa in phylogenetic analyses
No full textORCID: 0000-0003-4919-8655© 2016 The Authors.
Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. The file attached is the published version of the article.NHM Repositor
UHS Sophomore Class & School Spirit Builder
No full textThe photographs were taken for the 1955 edition of the Uintah High School yearbook. They are on page 40. The photograph in the top left corner is of the School Spirit Builder. In the bottom half of the page, the portraits are of some of the members of the Sophomore Class. Top row, from left to right: Sylvia Roybal, Alden Shaffer, Hallas Hatch, Larry Stone, Marilyn Snow, and Boyd Workman. Second row down, from left to right: Gladys Ruppe, Vern Wilkins, Betty Ostberg, D\u27Ann Pope, Harmon Hodgkinson, and Marie Hodgkinson. Bottom row, from left to right: Wanda Smuin, Eula Rae Johnson, Johnnie Clark, Sybil Campbell, Baxter Powell, and Jeanene Adamson
McCall crew portrait, 2001
No full textA group portrait of the crew for the McCall Smokejumper base.
Front Row: D. Pierson, E. Brundige, C. Niccoli, M. Dunton, M. Brondum, B. Charley, E. Eastep, Ned Ganz, M. Feliciano, Ned Salter, F. Behm, Ned Summerfield, Ned, Krupskaya, Ned C Ohme, Ned Bird, R. Kilner, C. Seielstad, R. Berney, J. Sayer.
Middle Row: C. Gustafson, D. Gustafson, J. Miller, Pilot. Thomson, N. Davis, K. Richards, K. LeBella, S. Lewis, Pilot. Anderson, T. Dwyer, S. Bierman, Pilot: J. Stright, B. Koncinsky, L. Wilson, F. Russo, D. Doane, J. Schricker, C. Martin, L. Drake, Brent Sawyer, F. Pavlovic, B. Beltz, S. Hardin, Pilot: D. Jarvis, R. Garber, T. Franzen.
Back Row: D. Geving, P. Jacobsen, K. Palm, ___, S. Mello, ____, S. Denowh, ___, T. McClintock.
Missing (No Shows): J. Brinkley, M. Cooper, D. Crawford, C. Dailey, J. Duzak, Pilot: M. Harmon, R. Hudson, D. McCoy, P. Pride, Brad Sawyer, T. Spencer, Ned Mascheroni, Ned Williamson.https://dc.ewu.edu/nsa_crewpics/1320/thumbnail.jp
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