|Title||The fading of the extraordinary low mass X-ray binary EXO 0748-676|
|Author||Dr Maria Diaz Trigo|
|Description||We propose to monitor the dipping low-mass X-ray binary EXO 0748-676 as it turns off and becomes quiescent. RXTE pointed observations of EXO 0748-676 during August 2008 show the source at the lowest flux level since the beginning of the RXTE mission in 1996, indicating that X-ray activity may cease soon, after being a steady accreting X-ray binary since February 1985 (ATel #1736). The proposed XMM observations aim to look at the source both as it turns off and in the period after it ceases X-ray activity to determine the cooling of the neutron star crust, which has been heated by more than 20 years of outburst.|
|Publication||XMM-Newton observations of the low-mass X-ray binary EXO 0748-676 in quiescence . Diaz Trigo, M., Boirin, L., et all. . A&A . 528-150 . 2011 . 2011A&A...528A.150D ,
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 ,
A connection between accretion state and Fe K absorption in an accreting neutron star: black hole-like soft-state winds? . Ponti, Gabriele, Munoz-Darias, Teodoro, . MNRAS . 444-1829 . 2014 . 2014MNRAS.444.1829P ,
Probing the Crust of the Neutron Star in EXO 0748-676 . Degenaar, N., Medin, Z., et all. . ApJ . 791-47 . 2014 . 2014ApJ...791...47D ,
High ionisation absorption in low mass X-ray binaries . Ponti, G., Bianchi, S., et all. . AN . 337-512 . 2016 . 2016AN....337..512P ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
The cooling, mass and radius of the neutron star in EXO 0748-676 in quiescence with XMM-Newton . Cheng, Zheng, Mendez, Mariano, et all. . MNRAS . 471-2605 . 2017 . 2017MNRAS.471.2605C ,
Unexpected late-time temperature increase observed in the two neutron star crust-cooling sources XTE J1701-462 and EXO 0748-676 . Parikh, A. S., Wijnands, R., et all. . A&A . 638-2 . 2020 . 2020A&A...638L...2P ,
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2010-10-03T00:00:00Z, 060556, 17.56_20190403_1200. https://doi.org/10.5270/esa-7646o35|