| Name | 089106 |
| Title | TRACKING THE ORBITAL ADVANCE OF THE FIRST ULTRALUMINOUS PULSAR M82 X-2 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0891060101 |
| DOI | https://doi.org/10.57780/esa-zlv2tjh |
| Author | European Space Agency |
| Description | Ultraluminous X-ray sources (ULXs) are X-ray binaries radiating above the Eddington luminosity. An increasing sample of ULXs are known to be powered by accreting pulsars (PULXs), and it is currently unclear if their observed emission is amplified by strong radiation beaming or it denotes a genuine super-Eddington mass accretion rate. In the second case, the large mass transfer required is expected to produce detectable effects on the binary orbit, which were tentatively detected in past observations. In this program, we use pulsar timing to track the orbital evolution of the first discovered PULX, M82 X-2, producing a strong constraint on the mass transfer and finally discriminate between the beaming and the extreme super-Eddington models. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-10-17T08:56:53Z/2022-04-07T09:44:20Z |
| Version | 19.17_20220121_1250 |
| 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 | 2023-04-27T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2023, Tracking The Orbital Advance Of The First Ultraluminous Pulsar M82 X-2, 19.17_20220121_1250, European Space Agency, https://doi.org/10.57780/esa-zlv2tjh |