| Proposal ID | 092380 |
| Title | A deep observation of a PULX candidate in NGC 3631 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0923800101 |
| DOI | https://doi.org/10.57780/esa-v64vfsn |
| Principal Investigator, PI | Prof Tim Roberts |
| Abstract | The detection of pulsating ultraluminous X-ray sources (PULXs) has led to aparadigm shift for the field; the key questions now revolve around thedemographics of ULXs (black holes vs neutron stars) and the details of theiraccretion physics. The detection of more PULXs is critical to answering bothquestions. We have therefore mined the recent Walton et al. (2022)multi-mission ULX catalogue with the intention of finding new PULX candidates. Here, we propose a 111 ks deep observation of an extreme ULX (L(x) > 10^40erg/s) in NGC 3631 with both the characteristic hard X-ray spectrum of a PULXand a high enough flux to make a sensitive accelerated pulsation search viable. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2024-04-23T19:10:14Z/2024-04-25T08:51:54Z |
| Version | 21.51_20241115_1113 |
| 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 | 2025-07-03T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | XMM-Newton, OM, RGS, EPIC, X-ray, Multi-Mirror, SAS |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Tim Roberts, 2025, 'A deep observation of a PULX candidate in NGC 3631', 21.51_20241115_1113, European Space Agency, https://doi.org/10.57780/esa-v64vfsn |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |