A dataset provided by the European Space Agency

Name: Companion star reflection during the low-state of Hercules X-1
Published: 2005-04-25T00:00:00Z

Proposal ID	014543
Title	Companion star reflection during the low-state of Hercules X-1
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0145430301 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0145430401 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0145430501
DOI	https://doi.org/10.5270/esa-cx9u4u9
Principal Investigator, PI	Dr Martin Still
Abstract	Compton reflection is an important contributor to the energy budgets of AGN andblack hole binaries. However characterizing and quantifying reflection isdifficult because it is dominated by the central source of X-rays. RXTEobservations of the X-ray binary Her X-1 have revealed a light curve consistentwith reflection from the inner facing hemisphere of the companion star duringthe source.s X-ray low-state (the result of obscuration by an edge-on accretiondisk). We request an XMM-Newton observation to confirm this reflection usingspectral diagnostics. Stellar masses, binary size, geometry, temperarture,density, composition and the central irradiating spectrum are well-known. Thismakes Her X-1 a potential calibrator of reflection physics.
Publications	The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue \|Watson, M. G., Schroder, A. C., et al. \| A&A \| 493-339 \| 2009 \| 2009A&A...493..339W \| http://ui.adsabs.harvard.edu/#abs/2009A&A...493..339W The X-ray Energy Dependence of the Relation Between Optical and X-ray Emission in Quasars \|Young, M., Elvis, M., \| ApJ \| 708-1388 \| 2010 \| 2010ApJ...708.1388Y \| http://ui.adsabs.harvard.edu/#abs/2010ApJ...708.1388Y An Extremely Luminous Panchromatic Outburst from the Nucleus of a Distant Galaxy \|Levan, A. J., Tanvir, N. R., et al. \| Sci \| 333-199 \| 2011 \| 2011Sci...333..199L \| http://ui.adsabs.harvard.edu/#abs/2011Sci...333..199L Studying the X-ray/UV Variability of Active Galactic Nuclei with data from Swift and XMM archives \|Turriziani, Sara, \| JPhCS \| 280-12005 \| 2011 \| 2011JPhCS.280a2005T \| http://ui.adsabs.harvard.edu/#abs/2011JPhCS.280a2005T Statistical evaluation of the flux cross-calibration of the XMM-Newton EPIC cameras \|Mateos, S., Saxton, R. D., et al. \| A&A \| 496-879 \| 2009 \| 2009A&A...496..879M \| http://ui.adsabs.harvard.edu/#abs/2009A&A...496..879M The XMM Cluster Survey: optical analysis methodology and the first data release \|Mehrtens, Nicola, Romer, A. Kathy, et al. \| MNRAS \| 423-1024 \| 2012 \| 2012MNRAS.423.1024M \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.1024M A serendipitous XMM survey of the SDSS: the evolution of the colour-magnitude diagram of X-ray AGN from z= 0.8 to 0.1 \|Georgakakis, Antonis, Nandra, K., \| MNRAS \| 414-992 \| 2011 \| 2011MNRAS.414..992G \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.414..992G An All-Sky Atlas of Radio/X-ray Associations \|Flesch, E., \| PASA \| 27-283 \| 2010 \| 2010PASA...27..283F \| http://ui.adsabs.harvard.edu/#abs/2010PASA...27..283F The XMM Cluster Survey: X-ray analysis methodology \|Lloyd-Davies, E. J., Romer, A. Kathy, et al. \| MNRAS \| 418-14 \| 2011 \| 2011MNRAS.418...14L \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.418...14L The cosmological analysis of X-ray cluster surveys - II. Application of the CR-HR method to the XMM archive \|Clerc, N., Sadibekova, T., et al. \| MNRAS \| 423-3561 \| 2012 \| 2012MNRAS.423.3561C \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.3561C Classification of X-Ray Sources in the XMM-Newton Serendipitous Source Catalog \|Lin, Dacheng, Webb, Natalie A., \| ApJ \| 756-27 \| 2012 \| 2012ApJ...756...27L \| http://ui.adsabs.harvard.edu/#abs/2012ApJ...756...27L Variability and the X-ray/UV ratio of active galactic nuclei \|Vagnetti, F., Turriziani, S., et al. \| A&A \| 519-17 \| 2010 \| 2010A&A...519A..17V \| http://ui.adsabs.harvard.edu/#abs/2010A&A...519A..17V The XMM-Newton serendipitous ultraviolet source survey catalogue \|Page, M. J., Brindle, C., et al. \| MNRAS \| 426-903 \| 2012 \| 2012MNRAS.426..903P \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.426..903P Ensemble X-ray variability of active galactic nuclei from serendipitous source catalogues \|Vagnetti, F., Turriziani, S., \| A&A \| 536-84 \| 2011 \| 2011A&A...536A..84V \| http://ui.adsabs.harvard.edu/#abs/2011A&A...536A..84V Cross-correlation of the 2XMMi catalogue with Data Release 7 of the Sloan Digital Sky Survey \|Pineau, F.-X., Motch, C., et al. \| A&A \| 527-126 \| 2011 \| 2011A&A...527A.126P \| http://ui.adsabs.harvard.edu/#abs/2011A&A...527A.126P A systematic cross-search for radio/infrared counterparts of XMM- Newton sources \|Combi, J. A., Albacete Colombo, J. F., et al. \| Ap&SS \| 331-53 \| 2011 \| 2011Ap&SS.331...53C \| http://ui.adsabs.harvard.edu/#abs/2011Ap&SS.331...53C Exploring X-ray and radio emission of type 1 AGN up to z virgul 2.3 \|Ballo, L., Heras, F. J. H., et al. \| A&A \| 545-66 \| 2012 \| 2012A&A...545A..66B \| http://ui.adsabs.harvard.edu/#abs/2012A&A...545A..66B The Fifth Data Release Sloan Digital Sky Survey/XMM-Newton Quasar Survey \|Young, M., Elvis, M., \| ApJS \| 183-17 \| 2009 \| 2009ApJS..183...17Y \| http://ui.adsabs.harvard.edu/#abs/2009ApJS..183...17Y A statistical relation between the X-ray spectral index and Eddington ratio of active galactic nuclei in deep surveys \|Brightman, M., Silverman, J. D., et al. \| MNRAS \| 433-2485 \| 2013 \| 2013MNRAS.433.2485B \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.433.2485B Automatic Classification of Time-variable X-Ray Sources \|Lo, Kitty K., Farrell, Sean, et al. \| ApJ \| 786-20 \| 2014 \| 2014ApJ...786...20L \| http://ui.adsabs.harvard.edu/#abs/2014ApJ...786...20L The diversity of quasars unified by accretion and orientation \|Shen, Yue, Ho, Luis C., \| Natur \| 513-210 \| 2014 \| 2014Natur.513..210S \| http://ui.adsabs.harvard.edu/#abs/2014Natur.513..210S Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift \|Yershov, V. N., \| Ap&SS \| 354-97 \| 2014 \| 2014Ap&SS.354...97Y \| http://ui.adsabs.harvard.edu/#abs/2014Ap&SS.354...97Y Obscuration-dependent Evolution of Active Galactic Nuclei \|Buchner, Johannes, Georgakakis, Antonis, et al. \| ApJ \| 802-89 \| 2015 \| 2015ApJ...802...89B \| http://ui.adsabs.harvard.edu/#abs/2015ApJ...802...89B ERRATUM: The Fifth Data Release Sloan Digital Sky Survey/XMM-Newton Quasar Survey (2009, ApJS, 183, 17) \|Young, M., Elvis, M., \| ApJS \| 185-250 \| 2009 \| 2009ApJS..185..250Y \| http://ui.adsabs.harvard.edu/#abs/2009ApJS..185..250Y Sunyaev-Zel.dovich effect or not? Detecting the main foreground effect of most galaxy clusters \|Xiao, Weike, Chen, Chen, et al. \| MNRAS \| 432-41 \| 2013 \| 2013MNRAS.432L..41X \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.432L..41X Ensemble X-ray variability of active galactic nuclei. II. Excess variance and updated structure function \|Vagnetti, F., Middei, R., et al. \| A&A \| 593-55 \| 2016 \| 2016A&A...593A..55V \| http://ui.adsabs.harvard.edu/#abs/2016A&A...593A..55V SPIDERS: the spectroscopic follow-up of X-ray selected clusters of galaxies in SDSS-IV \|Clerc, N., Merloni, A., et al. \| MNRAS \| 463-4490 \| 2016 \| 2016MNRAS.463.4490C \| http://ui.adsabs.harvard.edu/#abs/2016MNRAS.463.4490C The Million Optical - Radio/X-ray Associations (MORX) Catalogue \|Flesch, Eric W., \| PASA \| 33-52 \| 2016 \| 2016PASA...33...52F \| http://ui.adsabs.harvard.edu/#abs/2016PASA...33...52F Anisotropy of the galaxy cluster X-ray luminosity-temperature relation \|Migkas, Konstantinos, Reiprich, Thomas H., \| A&A \| 611-50 \| 2018 \| 2018A&A...611A..50M \| http://ui.adsabs.harvard.edu/#abs/2018A&A...611A..50M The XMM Cluster Survey: Present status and latest results \|Viana, P. T. P., Mehrtens, N., et al. \| AN \| 334-462 \| 2013 \| 2013AN....334..462V \| http://ui.adsabs.harvard.edu/#abs/2013AN....334..462V Testing emergent gravity on galaxy cluster scales \|Tamosiunas, Andrius, Bacon, David, et al. \| JCAP \| 5-53 \| 2019 \| 2019JCAP...05..053T \| http://ui.adsabs.harvard.edu/#abs/2019JCAP...05..053T Chandra Follow-up of the SDSS DR8 Redmapper Catalog Using the MATCha Pipeline \|Hollowood, Devon L., Jeltema, Tesla, et al. \| ApJS \| 244-22 \| 2019 \| 2019ApJS..244...22H \| http://ui.adsabs.harvard.edu/#abs/2019ApJS..244...22H Stellar mass as a galaxy cluster mass proxy: application to the Dark Energy Survey redMaPPer clusters \|Palmese, A., Annis, J., et al. \| MNRAS \| 493-4591 \| 2020 \| 2020MNRAS.493.4591P \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.493.4591P X-ray properties of the X-CLASS-redMaPPer galaxy cluster sample: the luminosity-temperature relation \|Molham, Mona, Clerc, Nicolas, et al. \| MNRAS \| 494-161 \| 2020 \| 2020MNRAS.494..161M \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.494..161M Multiwavelength classification of X-ray selected galaxy cluster candidates using convolutional neural networks \|Kosiba, Matej, Lieu, Maggie, et al. \| MNRAS \| 496-4141 \| 2020 \| 2020MNRAS.496.4141K \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.496.4141K SPIDERS: overview of the X-ray galaxy cluster follow-up and the final spectroscopic data release \|Clerc, N., Kirkpatrick, C. C., et al. \| MNRAS \| 497-3976 \| 2020 \| 2020MNRAS.497.3976C \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.497.3976C Classification of 4XMM-DR9 sources by machine learning \|Zhang, Yanxia, Zhao, Yongheng, \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z Robust constraints on feebly interacting particles using XMM-Newton \|Luque, Pedro De la Torre, Balaji, Shyam, \| PhRvD \| 109-L101305 \| 2024 \| 2024PhRvD.109j1305L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L Multimessenger search for electrophilic feebly interacting particles from supernovae \|Luque, Pedro De la Torre, Balaji, Shyam, \| PhRvD \| 109-103028 \| 2024 \| 2024PhRvD.109j3028L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints \|De la Torre Luque, Pedro, Balaji, Shyam, \| ApJ \| 968-46 \| 2024 \| 2024ApJ...968...46D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2004-02-09T02:12:20Z/2004-02-23T05:14:35Z
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	2005-04-25T00:00:00Z
Keywords	"blackhole binary", "energy budgets", "xray low", "XMM-Newton", "spectral diagnostics", "hercules x", "reflection physics", "central irradiating spectrum", "central source", "xmm newton", "companion star", "compton reflection", "stellar masses", "accretion disk", "companion star reflection", "light curve", "XMM", "binary size", "inner facing hemisphere", "xray binary", "quantifying reflection"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Martin Still, 2005, 'Companion star reflection during the low-state of Hercules X-1', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-cx9u4u9