Detection of X-ray emission from classical novae in their post-outburst stagesprovides unique information about the explosion mechanism. The analysis of theemission in soft X-rays enables a deep study of the remaining hot nuclearburning shell, whereas hard X-rays provide diagnostics of the internal orexternal shocks in the nova shells and/or about the recovery of accretion. Theunprecedented sensitivity and spectral resolution of XMM instruments will permitto deduce crucial parameters of the nova evolution, i.e., mass of the whitedwarf, turn-off timescale, mass burned into helium, if burning is still on, andproperties of the ejecta and/or the recovered accretion stream. In this proposalwe suggest the observation of 3 recent novae, which exploded in 2005.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2006-05-13T11:32:00Z/2007-03-05T20:46:00Z
Version
17.56_20190403_1200
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.
European Space Agency, Dr Margarita Hernanz, 2008, 'Turn-off and recovery of accretion in recent galactic novae', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-tmek01z
