A dataset provided by the European Space Agency

Name 050572
Title Resolving short supersoft source states of optical novae in the core of M31
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0505720201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0505720301
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0505720401
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0505720501
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0505720601

DOI https://doi.org/10.5270/esa-ih5xt4s
Author Dr Wolfgang Pietsch
Description We propose to monitor the M31 core with five 23ks XMM-Newton EPIC and five 20ks
Chandra HRC-I observations equally distributed from Nov 2007 to mid Feb 2008 to
determine the light curves for short supersoft source (SSS) states of optical
novae. SSS states with <100 d duration indicate accreting massive white dwarfs.
They are proposed as SN Ia progenitors and determining their frequency is very
important. We will correlate detected sources with novae from optical monitoring
of the same area. With a nova rate in the field of virgul25/yr and SSS states lasting
from weeks to years we will follow light curves of many novae. Durations of the
nova SSS state will allow us to constrain envelope and whitedwarf 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 2007-12-29T13:18:27Z/2008-02-07T10:37:50Z
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 2009-03-11T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Wolfgang Pietsch, 2009, 050572, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ih5xt4s