A dataset provided by the European Space Agency

Name 055127
Title A relativistic iron line in the X-ray spectrum of the atoll source 4U 1705-44?


DOI 10.5270/esa-p4chn93
Author Dr Tiziana Di Salvo
Description We propose a ToO (triggered) observation with XMM-Newton of the atoll source 4U 1705-44 during a soft state. A Chandra observation of this source clearly indicate the presence of a broad (sigma ~ 0.7 keV) iron line. Both a relativistic disc line and a thermal Comptonization broadening fit well the line profile. The superior sensitivity at the iron line energy of XMM-Newton is needed to give a definite answer to the problem of the origin of the broad iron line.
Publication 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., D.Ai, A., et all. . MNRAS . 398-2022 . 2009 . 2009MNRAS.398.2022D ,
A self-consistent approach to the hard and soft states of 4U 1705-44 . D.Ai, A., di Salvo, T., et all. . A&A . 516-36 . 2010 . 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 all. . A&A . 522-96 . 2010 . 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 all. . A&A . 550-5 . 2013 . 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 ,
ULX spectra revisited: Accreting, highly magnetized neutron stars as the engines of ultraluminous X-ray sources . Koliopanos, Filippos, Vasilopoulos, Georgios, et all. . A&A . 608-47 . 2017 . 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 Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2009-10-01T00:00:00Z, 055127, 17.56_20190403_1200. https://doi.org/10.5270/esa-p4chn93