| Proposal ID | 087094 |
| Title | BROADBAND TIMING OF THE ULTRALUMINOUS X-RAY SOURCES IN M82: ORBITAL DECAY, QPOS |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0870940101 |
| DOI | https://doi.org/10.57780/esa-ei31e98 |
| Principal Investigator, PI | Dr Matteo Bachetti |
| Abstract | The galaxy M82 harbors two notable ultraluminous X-ray sources (ULX): M82 X-2,the archetipal pulsating ultraluminous X-ray source (PULX), and M82 X-1, a IMBHcandidate. The extreme luminosity of ULXs, and the observation of strong windsfrom these sources, suggests that these sources are undergoing stronglysuper-Eddington accretion. The supply of matter that powers these accretingsystems is likely to come from Roche Lobe overflow from a more massive companionstar, and should produce changes of orbital period observable in time scales of~years. This program aims at detecting this orbital period derivative throughpulsar timing in M82 X-2, and study in detail the quasi-periodic oscillationsfrom both ULXs. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-04-06T22:43:54Z/2021-04-17T07:16:20Z |
| Version | 19.16_20210326_1200 |
| Mission Description | The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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 | 2022-06-02T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "orbital period derivative", "quasi periodic oscillations", "roche lobe overflow", "accreting systems", "orbital decay", "program aims", "time scales", "massive companion star", "super eddington accretion", "imbh candidate", "M82", "orbital period observable", "m82 x", "ultraluminous xray sources" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Matteo Bachetti, 2022, 'BROADBAND TIMING OF THE ULTRALUMINOUS X-RAY SOURCES IN M82: ORBITAL DECAY, QPOS', 19.16_20210326_1200, European Space Agency, https://doi.org/10.57780/esa-ei31e98 |