A dataset provided by the European Space Agency

Name 040532
Title Monitoring the supersoft source state of many optical novae in the core of M 31


DOI https://doi.org/10.5270/esa-9av94qr
Author Dr Wolfgang Pietsch
Description We propose to monitor the M31 core with four 23ks XMM-Newton EPIC and four 20ks Chandra HRC-I observations equally distributed over AO5 to determine the dura- tion of the supersoft source (SSS) state of optical novae. Detected sources will be correlated with optical nova positions from the WeCAPP program covering the same area. EPIC will determine the SSS nature of sources using hardness ratios, HRC-I will enable continuous monitoring and separate nova candidates from bright X-ray sources. With a nova rate in the field of virgul25-yr and SSS phase sometimes lasting for years we will simultaneously follow many nova light curves. The durations of the nova SSS state will allow us to constrain envelope and WD masses. We will also monitor time variability of virgul200 M31 centre X-ray sources (mostly XRBs).
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2006-07-02T14:13:51Z/2007-02-05T08:02:16Z
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 2008-08-29T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2008-08-29T00:00:00Z, 040532, 17.56_20190403_1200. https://doi.org/10.5270/esa-9av94qr