A dataset provided by the European Space Agency

Name: Joint XMM-Newton, Chandra, and RXTE Observations of Dips in Cyg X-1
Published: 2009-06-06T00:00:00Z

Proposal ID	050088
Title	Joint XMM-Newton, Chandra, and RXTE Observations of Dips in Cyg X-1
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0500880201
DOI	https://doi.org/10.5270/esa-8xury3o
Principal Investigator, PI	Prof Joern Wilms
Abstract	At orbital phase zero (i.e., the O star secondary intervening our line of sightto the black hole primary), Cyg X-1 shows X-ray dips due to highly variableabsorption in matter in the accretion stream. Studying the physics of these dipsrequires joint XMM/Chandra-HETGS/RXTE observations: XMM-Newton provides thecrucially important spectral continuum through the broad Fe line region at CCDresolution and it achieves high signal-to-noise in the <2keV band, allowing thedipping events to be temporally resolved and spectrally modeled on short timescales. The simultaneous Chandra data provide high resolution spectroscopy ofthe dipping events (albeit at a lower time resolution compared to XMM-Newton),while RXTE provides the hard X-ray continuum out to >150keV.
Publications	Probing the Environment of Accreting Compact Objects \|Hanke Manfred \| PhDT \| 0-9 \| 2011 \| 2011PhDT.........9H \| http://ui.adsabs.harvard.edu/#abs/2011PhDT.........9H An XMM-Newton view of FeKalpha in high-mass X-ray binaries \|Gimenez-Garcia A. Torrejon J. M. et al. \| A&A \| 576-108 \| 2015 \| 2015A&A...576A.108G \| http://ui.adsabs.harvard.edu/#abs/2015A&A...576A.108G Tracing the Reverberation Lag in the Hard State of Black Hole X-Ray Binaries \|De Marco B. Ponti G. et al. \| ApJ \| 814-50 \| 2015 \| 2015ApJ...814...50D \| http://ui.adsabs.harvard.edu/#abs/2015ApJ...814...50D Spectroscopy of the Stellar Wind in the Cygnus X-1 System \|Miskovicova I. Hanke M. et al. \| AcPol \| 51-85 \| 2011 \| 2011AcPol..51b..85M \| http://ui.adsabs.harvard.edu/#abs/2011AcPol..51b..85M Discovering the Mass-Scaled Damping Timescale from Microquasars to Blazars \|Zhang Haoyang Yang Shenbang \| ApJ \| 967-L18 \| 2024 \| 2024ApJ...967L..18Z \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...967L..18Z
Instrument	EPN, RGS1, RGS2
Temporal Coverage	2008-04-18T11:54:38Z/2008-04-19T04:25:16Z
Version	17.56_20190403_1200
Mission Description	The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact	https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published	2009-06-06T00:00:00Z
Last Update	2025-01-27
Keywords	"dipping events albeit", "dipping events", "temporally resolved", "cyg x", "xmm newton", "star secondary intervening", "spectral continuum", "2kev band", "hard xray continuum", "resolution spectroscopy", "variable absorption", "XMM-Newton", "lower time resolution", "xray dips", "accretion stream", "chandra hetgs", "chandra data", "orbital phase zero", "spectrally modeled", "blackhole primary", "XMM", "short time scales", "ccd resolution"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Prof Joern Wilms, 2009, 'Joint XMM-Newton, Chandra, and RXTE Observations of Dips in Cyg X-1', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-8xury3o