A precise measurement of the magnetic field in the corona of the black hole binary V404 Cygni-Reference-Cited by-同舟云学术

A precise measurement of the magnetic field in the corona of the black hole binary V404 Cygni

Published:2017-12-08 Issue:6368 Volume:358 Page:1299-1302
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Dallilar Yigit¹^ORCID,Eikenberry Stephen S.¹^ORCID,Garner Alan¹^ORCID,Stelter Richard D.¹^ORCID,Gottlieb Amy¹^ORCID,Gandhi Poshak²^ORCID,Casella Piergiorgio³^ORCID,Dhillon Vik S.⁴⁵,Marsh Tom R.⁶^ORCID,Littlefair Stuart P.⁴,Hardy Liam⁴,Fender Rob⁷,Mooley Kunal⁷^ORCID,Walton Dominic J.⁸^ORCID,Fuerst Felix⁹¹⁰^ORCID,Bachetti Matteo¹¹^ORCID,Castro-Tirado A. J.¹²¹³^ORCID,Charcos Miguel¹^ORCID,Edwards Michelle L.¹⁴^ORCID,Lasso-Cabrera Nestor M.¹⁵^ORCID,Marin-Franch Antonio¹⁵^ORCID,Raines S. Nicholas¹^ORCID,Ackley Kendall¹^ORCID,Bennett John G.¹,Cenarro A. Javier¹⁵^ORCID,Chinn Brian¹,Donoso H. Veronica¹^ORCID,Frommeyer Raymond¹,Hanna Kevin¹^ORCID,Herlevich Michael D.¹,Julian Jeff¹^ORCID,Miller Paola¹^ORCID,Mullin Scott¹^ORCID,Murphey Charles H.¹,Packham Chris¹⁶¹⁷^ORCID,Varosi Frank¹,Vega Claudia¹^ORCID,Warner Craig¹^ORCID,Ramaprakash A. N.¹⁸^ORCID,Burse Mahesh¹⁸,Punnadi Sujit¹⁸,Chordia Pravin¹⁸^ORCID,Gerarts Andreas¹⁹,de Paz Martín Héctor¹⁹,Calero María Martín¹⁹,Scarpa Riccardo⁵¹⁹^ORCID,Acosta Sergio Fernandez¹⁹^ORCID,Hernández Sánchez William Miguel¹⁹,Siegel Benjamin¹⁹,Pérez Francisco Francisco¹⁹,Viera Martín Himar D.¹⁹,Rodríguez Losada José A.¹⁹^ORCID,Nuñez Agustín¹⁹^ORCID,Tejero Álvaro¹⁹,Martín González Carlos E.¹⁹,Rodríguez César Cabrera¹⁹,Molgó Jordi¹⁹,Rodriguez J. Esteban¹⁹,Cáceres J. Israel Fernández¹⁹,Rodríguez García Luis A.¹⁹,Lopez Manuel Huertas¹⁹,Dominguez Raul¹⁹^ORCID,Gaggstatter Tim¹⁹^ORCID,Lavers Antonio Cabrera¹⁹,Geier Stefan⁵¹⁹,Pessev Peter⁵¹⁹^ORCID,Sarajedini Ata¹

Affiliation:

1. Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USA.

2. Department of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, UK.

3. Istituto Nazionale di Astrofisica–Osservatorio Astronomico di Roma, Via Frascati 33, I-00040 Monteporzio Catone, Italy.

4. Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, UK.

5. Instituto de Astrofisica de Canarias, 38205 La Laguna, Santa Cruz de Tenerife, Spain.

6. Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK.

7. Division of Astrophysics, Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH, UK.

8. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK.

9. Space Radiation Laboratory, California Institute of Technology, Pasadena, CA 91125, USA.

10. European Space Astronomy Centre, Operations Department, Villanueva de la Cañada, Madrid, Spain.

11. Istituto Nazionale di Astrofisica–Osservatorio Astronomico di Cagliari, via della Scienza 5, 09047 Selargius, Italy.

12. Instituto de Astrofísica de Andalucía–Consejo Superior de Investigaciones Científicas, E-18008 Granada, Spain.

13. Unidad Asociada Departamento de Ingeniería de Sistemas y Automática, Universidad de Málaga, 29071 Malaga, Spain.

14. Large Binocular Telescope Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA.

15. Centro de Estudios de Física del Cosmos de Aragón, 44001 Teruel, Aragón, Spain.

16. Department of Physics and Astronomy, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA.

17. National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan.

18. Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune-411007, India.

19. Gran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, Spain.

Abstract

Conditions in a black hole outburst The binary system V404 Cygni consists of a red giant star orbiting a black hole. In 2015, a surge of accretion by the black hole caused the surrounding plasma to brighten suddenly for the first time since 1989, briefly becoming the brightest x-ray source in the sky. Dallilar et al. combined observations from radio, infrared, optical, and x-ray telescopes taken during the outburst. They compared how fast the flux decayed at each wavelength, which allowed them to constrain the size of the emitting region, determine that the plasma within it cooled through synchrotron radiation, and measure the magnetic field around the black hole. Science , this issue p. 1299

Funder

National Science Foundation

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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