A dataset provided by the European Space Agency

Proposal ID 1620024
Obs ID 16200240001
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:1620024
DOI https://doi.org/10.57780/esa-pxejgd3
Author Wilms
Abstract One of the most important results on Galactic black holes that has come out of INTEGRAL was 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, probably from the radio jet that is present in the hard state. In this two year, 2 Ms program we propose a continuation of these measurements with the aim of detecting changes in the hard state polarization properties.
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
  • Diffuse Galactic emission spectrum between 0.5 and 8.0 MeV - Siegert, Thomas, Berteaud, Joanna,Calore, Francesca,Serpico, Pasquale D.,Weinberger, Christoph (2022-04-01) http://ui.adsabs.harvard.edu/#abs/2022A&A...660A.130S
  • INTEGRAL discovery of a high-energy tail in the microquasar Cygnus X-3 - Cangemi, F., Rodriguez, J.,Grinberg, V.,Belmont, R.,Laurent, P.,Wilms, J. (2021-01-01) http://ui.adsabs.harvard.edu/#abs/2021A&A...645A..60C
  • 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
  • NuSTAR Spectral Analysis beyond 79 keV with Stray Light - Mastroserio, G., Grefenstette, B. W.,Thalhammer, P.,Buisson, D. J. K.,Brumback, M. C.,Ludlam, R. M.,Connors, R. M. T.,Garcia, J. A.,Grinberg, V.,Madsen, K. K.,Miyasaka, H.,Tomsick, J. A.,Wilms, J. (2022-12-01) http://ui.adsabs.harvard.edu/#abs/2022ApJ...941...35M
  • Potential origin of the state-dependent high-energy tail in the black hole microquasar Cygnus X-1 as seen with INTEGRAL - Cangemi, F., Beuchert, T.,Siegert, T.,Rodriguez, J.,Grinberg, V.,Belmont, R.,Gouiffes, C.,Kreykenbohm, I.,Laurent, P.,Pottschmidt, K.,Wilms, J. (2021-06-01) http://ui.adsabs.harvard.edu/#abs/2021A&A...650A..93C
  • Search for Evolutionary Changes in the Periods of Cepheids: V1033 Cyg, a Classical Cepheid at the First Crossing of the Instability Strip - Berdnikov, L. N., Pastukhova, E. N.,Kovtyukh, V. V.,Lemasle, B.,Kniazev, A. Yu.,Usenko, I. A.,Bono, G.,Grebel, E.,Hajdu, G.,Zhuiko, S. V.,Udovichenko, S. N.,Keir, L. E. (2019-04-01) http://ui.adsabs.harvard.edu/#abs/2019AstL...45..227B
  • What Is the Black Hole Spin in Cyg X-1? - Zdziarski, Andrzej A., Chand, Swadesh,Banerjee, Srimanta,Szanecki, Michal,Janiuk, Agnieszka,Lubinski, Piotr,Niedzwiecki, Andrzej,Dewangan, Gulab,Misra, Ranjeev (2024-05-01) http://ui.adsabs.harvard.edu/#abs/2024ApJ...967L...9Z
Temporal Coverage 2019-05-23T19:03:29Z / 2019-11-16T21:58:33Z
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 2025-03-25T09:54:39Z
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-pxejgd3