A dataset provided by the European Space Agency

Name: A relativistic iron line in the X-ray spectrum of the atoll source 4U 1705-44?
Published: 2009-10-01T00:00:00Z

Proposal ID	055127
Title	A relativistic iron line in the X-ray spectrum of the atoll source 4U 1705-44?
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0551270201
DOI	https://doi.org/10.5270/esa-p4chn93
Principal Investigator, PI	Dr Tiziana Di Salvo
Abstract	We propose a ToO (triggered) observation with XMM-Newton of the atoll source 4U1705-44 during a soft state. A Chandra observation of this source clearlyindicate the presence of a broad (sigma ~ 0.7 keV) iron line. Both arelativistic disc line and a thermal Comptonization broadening fit well the lineprofile. The superior sensitivity at the iron line energy of XMM-Newton isneeded to give a definite answer to the problem of the origin of the broad ironline.
Publications	A relativistically smeared spectrum in the neutron star X-ray binary 4U 1705-44: looking at the inner accretion disc with X-ray spectroscopy \|di Salvo T. DAi A. et al. \| MNRAS \| 398-2022 \| 2009 \| 2009MNRAS.398.2022D \| http://ui.adsabs.harvard.edu/#abs/2009MNRAS.398.2022D A self-consistent approach to the hard and soft states of 4U 1705-44 \|DAi A. di Salvo T. et al. \| A&A \| 516-36 \| 2010 \| 2010A&A...516A..36D \| http://ui.adsabs.harvard.edu/#abs/2010A&A...516A..36D A systematic analysis of the broad iron Kalpha line in neutron-star LMXBs with XMM-Newton \|Ng C. Diaz Trigo M. et al. \| A&A \| 522-96 \| 2010 \| 2010A&A...522A..96N \| http://ui.adsabs.harvard.edu/#abs/2010A&A...522A..96N Testing reflection features in 4U 1705-44 with XMM-Newton BeppoSAX and RXTE in the hard and soft states \|Egron E. Di Salvo T. et al. \| A&A \| 550-5 \| 2013 \| 2013A&A...550A...5E \| http://ui.adsabs.harvard.edu/#abs/2013A&A...550A...5E 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 ULX spectra revisited: Accreting highly magnetized neutron stars as the engines of ultraluminous X-ray sources \|Koliopanos Filippos Vasilopoulos Georgios et al. \| A&A \| 608-47 \| 2017 \| 2017A&A...608A..47K \| http://ui.adsabs.harvard.edu/#abs/2017A&A...608A..47K
Instrument	EMOS1, EPN, OM, RGS1, RGS2
Temporal Coverage	2008-08-24T01:59:59Z/2008-08-24T17:14:51Z
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	2009-10-01T00:00:00Z
Last Update	2025-01-27
Keywords	"broad sigma", "line profile", "definite answer", "xmm newton", "XMM-Newton", "relativistic disc line", "kev iron line", "iron line energy", "relativistic iron line", "broad iron line", "superior sensitivity", "XMM", "xray spectrum"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Tiziana Di Salvo, 2009, 'A relativistic iron line in the X-ray spectrum of the atoll source 4U 1705-44?', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-p4chn93