A precise measurement of the magnetic field in the corona of the black hole binary V404 Cygni
Yigit DallilarDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAStephen S. EikenberryDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAAlan GarnerDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAR. Deno StelterDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAAmy GottliebDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAP. GandhiDepartment of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, UKP. CasellaIstituto Nazionale di Astrofisica–Osservatorio Astronomico di Roma, Via Frascati 33, I-00040 Monteporzio Catone, ItalyV. S. DhillonDepartment of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, UKTom MarshDepartment of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKS. P. LittlefairDepartment of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, UKLiam HardyDepartment of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, UKR. P. FenderDivision of Astrophysics, Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH, UKK. P. MooleyDivision of Astrophysics, Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH, UKD. J. WaltonInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKF. FuerstEuropean Space Astronomy Centre, Operations Department, Villanueva de la Cañada, Madrid, SpainMatteo BachettiIstituto Nazionale di Astrofisica–Osservatorio Astronomico di Cagliari, via della Scienza 5, 09047 Selargius, ItalyA. J. Castro‐TiradoInstituto de Astrofísica de Andalucía–Consejo Superior de Investigaciones Científicas, E-18008 Granada, SpainMiguel CharcosDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAMichelle L. EdwardsLarge Binocular Telescope Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USAN. M. Lasso-CabreraCentro de Estudios de Física del Cosmos de Aragón, 44001 Teruel, Aragón, SpainA. Marín-FranchCentro de Estudios de Física del Cosmos de Aragón, 44001 Teruel, Aragón, SpainS. N. RainesDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAK. AckleyDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAJohn G. BennettDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAA. J. CenarroCentro de Estudios de Física del Cosmos de Aragón, 44001 Teruel, Aragón, SpainBrian ChinnDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAH. Veronica DonosoDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USARaymond FrommeyerDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAKevin HannaDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAMichael D. HerlevichDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAJeff JulianDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAPaola MillerDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAScott A. MullinDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USACharles H. MurpheyDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAC. PackhamDepartment of Physics and Astronomy, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USAF. VárosiDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAClaudia VegaDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAC. WarnerDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USAA. N. RamaprakashInter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune-411007, IndiaMahesh BurseInter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune-411007, IndiaSujit PunnadiInter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune-411007, IndiaPravin ChordiaInter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune-411007, IndiaAndreas GerartsGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainHéctor de Paz MartínGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainMaría Martín CaleroGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainR. ScarpaGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainSergio Fernandez AcostaGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainWilliam Miguel Hernández SánchezGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainBenjamin M. SiegelGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainFrancisco Francisco PérezGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainHimar D. Viera MartínGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainJosé A. Rodríguez LosadaGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainAgustín NúñezGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainA. TejeroGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainCarlos E. Martín GonzálezGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainCésar Cabrera RodríguezGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainJordi MolgóGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainJ. Esteban RodriguezGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainJ. Israel Fernández CáceresGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainLuis A. Rodríguez GarcíaGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainManuel Huertas LopezGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainRaul DominguezGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainTim GaggstatterGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainA. Cabrera LaversGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainS. GeierGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainPeter PessevGran Telescopio de Canarias, Cuesta de San José s/n, E-38712, Breña Baja, La Palma, SpainAta SarajediniDepartment of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USA
2017en
ABI
Аннотация
Observations of binary stars containing an accreting black hole or neutron star often show x-ray emission extending to high energies (>10 kilo--electron volts), which is ascribed to an accretion disk corona of energetic particles akin to those seen in the solar corona. Despite their ubiquity, the physical conditions in accretion disk coronae remain poorly constrained. Using simultaneous infrared, optical, x-ray, and radio observations of the Galactic black hole system V404 Cygni, showing a rapid synchrotron cooling event in its 2015 outburst, we present a precise 461 ± 12 gauss magnetic field measurement in the corona. This measurement is substantially lower than previous estimates for such systems, providing constraints on physical models of accretion physics in black hole and neutron star binary systems.
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