| Name | 082331 |
| Title | Unveiling the X-ray faint intermediate polars- source of the Galactic Ridge X-ra |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0823310801 |
| DOI | https://doi.org/10.5270/esa-hi1go16 |
| Author | European Space Agency |
| Description | The poorly-understood Galactic Ridge X-ray Emission (GRXE) is an X-ray background concentrated around the Galactic plane, primarily composed of difficult to resolve discrete sources. The most promising candidates for its origin above a few keV are the intermediate polars (IPs), a class of magnetic cataclysmic variables (CVs), consisting of a strongly magnetic white dwarf and a Roche-lobe filling companion. Most of the 49 confirmed IPs are X-ray bright (L_X virgul 10^33 erg/s) but there may be a more numerous undiscovered population of fainter (L_X virgul 10^31 erg /s) IPs. We propose to observe 8 underluminous IP candidates to confirm their nature as IPs, to search for the underluminous IP population, detect spin period |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2019-03-18T04:57:50Z/2019-03-18T16:02:50Z |
| Version | 17.56_20190403_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 | 2020-04-16T22:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2020, Unveiling The X-Ray Faint Intermediate Polars- Source Of The Galactic Ridge X-Ra, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-hi1go16 |