|Title||Spectroscopy of a Neutron Star Transient in Outburst|
|Author||Dr Jon Miller|
|Description||A recent observation of Serpens X-1 with NuSTAR has clearly revealed a relativistic Fe K line (confirming prior XMM-Newton results), as well as the Compton reflection hump. We propose to build on this by making two 40 ks XMM-Newton + NuSTAR observations of a transient neutron star LMXB in outburst. Leveraging their complementary strengths, this program will aim to constrain the stellar radius, search for disk winds like those seen in black holes (and a small but growing number of neutron stars), and to understand the evolution of neutron star accretion flows over a broader range of accretion rates than can be observed in persistent "Z.. and "atoll.. sources.|
|Publication||NuSTAR and XMM-Newton Observations of the Neutron Star X-Ray Binary 1RXS J180408.9-34205 . Ludlam, R. M., Miller, J. M., et all. . ApJ . 824-37 . 2016 . 2016ApJ...824...37L ,
Rapid X-ray variability properties during the unusual very hard state in neutron-star low-mass X-ray binaries . Wijnands, R., Parikh, A. S., et all. . MNRAS . 472-559 . 2017 . 2017MNRAS.472..559W ,
Quasi-simultaneous INTEGRAL, SWIFT, and NuSTAR Observations of the New X-Ray Clocked Burster 1RXS J180408.9-342058 . Fiocchi, M., Bazzano, A., et all. . ApJ . 887-30 . 2019 . 2019ApJ...887...30F ,
Detection of millihertz quasi-periodic oscillations in the X-Ray binary 1RXS J180408.9-342058 . Tse, Kaho, Galloway, Duncan K., et all. . MNRAS . 500-34 . 2021 . 2021MNRAS.500...34T ,
|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, 2016-04-22T22:00:00Z, 074162, 17.56_20190403_1200. https://doi.org/10.5270/esa-kehp16o|