|Title||Is 1RXS J0838-2827 a new transitional binary millisecond pulsar?|
|Author||Dr Nanda Rea|
|Description||We have identified a new candidate transitional millisecond pulsar, 1RXS J0838-2827. It shows H and He accretion-disk lines in the optical, it has a Fermi uncatalogued counterpart, and shows X-ray variability (observed with Swift-XRT) similar to the other transitional millisecond binaries (IGR J18245-2452, PSR J1023+0038 and XSS J12270-4859). We ask for a 50 ks XMM observation of this new source to characterize properly its spectrum and the lightcurve variability on short timescales. Enlarging the number of systems caught in this transitional phase is crucial to test binary evolution theories, and to study the disk-field interaction over a large range of mass accretion rates.|
|Publication||X-Ray and Optical Study of the Gamma-ray Source 3FGL J0838.8-2829: Identification of a Candidate Millisecond Pulsar Binary and an Asynchronous Polar . Halpern, Jules P., Bogdanov, Slavko, . ApJ . 838-124 . 2017 . 2017ApJ...838..124H ,
Multiband study of RX J0838-2827 and XMM J083850.4-282759: a new asynchronous magnetic cataclysmic variable and a candidate transitional millisecond pulsar . Rea, N., Zelati, F. Coti, et all. . MNRAS . 471-2902 . 2017 . 2017MNRAS.471.2902R ,
Spot Model for Identifications of Periods in Asynchronous Polars . Wang, Qishan, Qian, Shengbang, et all. . ApJ . 892-38 . 2020 . 2020ApJ...892...38W ,
A multiwavelength search for black widow and redback counterparts of candidate u03b3-ray millisecond pulsars . Braglia, C., Mignani, R. P., et all. . MNRAS . 497-5364 . 2020 . 2020MNRAS.497.5364B ,
|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, 2016-11-05T23:00:00Z, 076442, 17.56_20190403_1200. https://doi.org/10.5270/esa-2ms807l|