A dataset provided by the European Space Agency

Proposal ID 1720013
Obs ID 17200130001
Title Continued Monitoring of the Polarization of Cygnus X-1
Download Data Associated to the proposal https://isla.esac.esa.int/tap/download/bundle?format=ascii_curl&product_id=prop_id:1720013
DOI https://doi.org/10.57780/esa-f969vld
Author Wilms
Abstract One of the most important results on Galactic black holes that has come out of INTEGRALwas the discovery of the signature of strong polarization of the >300 keV spectrum of Cygnus X-1.This discovery is an indication that this spectral component is due to synchrotron emission, probablyfrom the radio jet that is present in the hard state. In this two year, 2 Ms program we propose acontinuation of these measurements with the aim of detecting changes in the hard state polarizationproperties, to set strong limits on the hard tail in the soft state, and to break degeneracies between thetwo families of models for the formation of the hard tail.
Publications
  • A Multi-epoch, Multiwavelength Study of the Classical FUor V1515 Cyg Approaching Quiescence - Szabo, Zs. M., Kospal, A.,Abraham, P.,Park, S.,Siwak, M.,Green, J. D.,Pal, A.,Acosta-Pulido, J. A.,Lee, J. -E.,Ibrahimov, M.,Grankin, K.,Kovacs, B.,Bora, Zs.,Bodi, A.,Cseh, B.,Csornyei, G.,Drozdz, Marek,Hanyecz, O.,Ignacz, B.,Kalup, Cs.,Konyves-Toth, R.,Krezinger, M.,Kriskovics, L.,Ogloza, Waldemar,Ordasi, A.,Sarneczky, K.,Seli, B.,Szakats, R.,Sodor, A.,Szing, A.,Vida, K.,Vinko, J. (2022-09-01) http://ui.adsabs.harvard.edu/#abs/2022ApJ...936...64S
  • Comprehensive coverage of particle acceleration and kinetic feedback from the stellar mass black hole V404 Cygni - Fender, R. P., Mooley, K. P.,Motta, S. E.,Bright, J. S.,Williams, D. R. A.,Rushton, A. P.,Beswick, R. J.,Miller-Jones, J. C. A.,Kimura, M.,Isogai, K.,Kato, T. (2023-01-01) http://ui.adsabs.harvard.edu/#abs/2023MNRAS.518.1243F
  • Deep Hard X-ray Survey of the M81 Field Based on INTEGRAL1 Data - Krivonos, R. A., Mereminskiy, I. A.,Sazonov, S. Yu. (2024-05-01) http://ui.adsabs.harvard.edu/#abs/2024AstL...50...25K
  • INTEGRAL Observations of Magnetars - Pacholski, Dominik Patryk, Ducci, Lorenzo,Topinka, Martin,Mereghetti, Sandro (2025-01-01) http://ui.adsabs.harvard.edu/#abs/2025AN....34640109P
  • Investigating the true nature of three hard X-ray sources - Molina, M., Malizia, A.,Masetti, N.,Bassani, L.,Bazzano, A.,Bird, A. J.,Fiocchi, M.,Palazzi, E.,Ubertini, P. (2021-11-01) http://ui.adsabs.harvard.edu/#abs/2021MNRAS.507.3423M
Temporal Coverage 2020-06-12T08:43:05Z / 2021-02-02T21:25:08Z
Version 1.0
Mission Description The INTEGRAL (International Gamma-Ray Astrophysics Laboratory) mission, launched by the European Space Agency (ESA) on October 17, 2002, was designed to study high-energy phenomena in the universe. INTEGRAL was operating until february 2025 and it was equipped with three high-energy instruments: the Imager on Board the INTEGRAL Satellite (IBIS), the Spectrometer on INTEGRAL (SPI), and the JEM-X (Joint European Monitor for X-rays). Its Optical Monitoring Camera (OMC) provided optical V-band magnitude measurements, complementing the high-energy observations.
Creator Contact https://www.cosmos.esa.int/web/integral/helpdesk
Date Published 2025-03-25T09:54:40Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Wilms, 2025, 'Continued Monitoring of the Polarization of Cygnus X-1', 1.0, European Space Agency, https://doi.org/10.57780/esa-f969vld