| Name | 088355 |
| Title | Too B or not too B: the quest for the PULX accretion |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0883550101 |
| DOI | https://doi.org/10.57780/esa-o4oqdhf |
| Author | Prof GianLuca Israel |
| Description | Within the framework of the AO17 UNSEEN XMM Large Program, we discovered a new 2.8-s Pulsating ULX hosted in a massive binary system (Mc>8Msun) in M51 with an orbital period of 2 days and a super-orbital modulation of about 38 days. Being a persistent source (unlike all the other known PULXs) it is very well suited for deeper studies. The present proposal is two-folded: improving our understanding of the accretion phenomena onto Neutron Stars (NSs) at extreme rates and extending our knowledge of M51 ULX-7. The requested pointings, together with the archival datasets, will allow us to measure crucial orbital parameters in order to prove whether PULXs have indeed super-Eddington luminosities or are mainly beamed- emitting NSs, a long standing problem in the field. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-11-22T06:39:08Z/2022-01-08T17:51:21Z |
| Version | 19.16_20210326_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 | 2023-01-25T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2023-01-25T00:00:00Z, 088355, 19.16_20210326_1200. https://doi.org/10.57780/esa-o4oqdhf |