| Name | 086035 |
| Title | X-ray study of a candidate transitional millisecond pulsar binary |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0860350101 |
| DOI | https://doi.org/10.57780/esa-ucx30bd |
| Author | European Space Agency |
| Description | Among the unassociated sources detected by the Fermi Gamma-ray Space Telescope, we find one 2.5-hr binary from our multi-wavelength studies. The source, with an X-ray counterpart, has an optical spectrum typical of accretion disks in X-ray binaries, and thus is likely a transitional millisecond pulsar (MSP) system in the disk state. Such systems can switch between the states of being a pure MSP and having an accretion disk around the MSP. Here we request an 11-ks observation of the source for further studies. A spectrum of the source will be obtained to check whether its X-ray emission is consistent with those of redback type of MSPs. We will also search for fast and large-amplitude flux variations, which is a distinguishing feature of the transitional systems in the disk state. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-11-12T13:12:40Z/2020-11-12T17:06:00Z |
| Version | 18.02_20200221_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 | 2021-12-01T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2021, X-Ray Study Of A Candidate Transitional Millisecond Pulsar Binary, 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-ucx30bd |