| Name | 091308 |
| Title | MULTI-EPOCH BROADBAND MONITORING OF NGC5907 ULX1 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0913080101 |
| DOI | https://doi.org/10.57780/esa-p31uxna |
| Author | European Space Agency |
| Description | Following a series of remarkable recent discoveries, we now know that some of the most luminous members of the ultraluminous X-ray source (ULX) population are actually powered by highly super-Eddington pulsars (i.e. neutron stars), making them the most extreme sustained accretors known. Six such systems are now known, but NGC5907 ULX1 stands out as the most luminous, peaking at Lx virgul 1e41 erg/s. Here we propose a pair of simultaneous NuSTAR+XMM observations of NGC5907 ULX1. These will allow us to continue to track the long-term evolution of the neutron star spin, help investigate why the pulsations are transient in some ULX pulsars, and explore the nature of the long-term 78d X-ray period present in this system. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-10-27T07:54:51Z/2022-11-07T16:28:10Z |
| Version | 20.09_20221024_1724 |
| 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 | 2023-12-16T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2023, Multi-Epoch Broadband Monitoring Of Ngc5907 Ulx1, 20.09_20221024_1724, European Space Agency, https://doi.org/10.57780/esa-p31uxna |