| Name | 092075 |
| Title | Measuring the mass of the white dwarf in the symbiotic binary RT Cru |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0920750101 |
| DOI | https://doi.org/10.57780/esa-vffhtji |
| Author | European Space Agency |
| Description | The extraordinary symbiotic binary RT Cru, which hosts a massive (>1.25 solar masses) white dwarf (WD) and thus is a serious candidate to be a SNIa progenitor, is currently in a new optical/hard X-ray bright state; the previous one was detected in 2012 in optical photometry and with Swift/BAT. At that time the accretion rate onto the WD increased, but did not reach the value where the accretion disk boundary layer transitions to the optically thick regime. We propose to observe RTvirgulCru with XMM and NuSTAR during the current maximum --an event that is unlikely to repeat within the next ten years -- in order to fully characterize the 0.3-80 keV spectrum during the maximum, allowing us to measure the shock temperature and thus the WD mass and the accretion rate through the boundary layer. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2023-02-20T08:49:42Z/2023-02-21T02:19:42Z |
| 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 | 2024-03-14T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2024, Measuring The Mass Of The White Dwarf In The Symbiotic Binary Rt Cru, 20.09_20221024_1724, European Space Agency, https://doi.org/10.57780/esa-vffhtji |