A dataset provided by the European Space Agency

Proposal ID 078400
Title A detailed X-ray study of the unique recurrent nova M31N 2008-12a
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0784000101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0784000201

DOI https://doi.org/10.5270/esa-sv8a4xj
Principal Investigator, PI Dr Martin Henze
Abstract M31N 2008-12a is a recurrent nova in M31 with a unique record of 8 observederuptions in the last 8 years. The apparent recurrence period of 1 yr isunprecedentedly short, with evidence for an even shorter period of 6 months.This nova is the prime type-Ia supernova progenitor candidate. We successfullypredicted the last two eruptions and predict that future eruptions will soonenter the XMM-Newton visibility window. We propose a 100-ks XMM-Newton target ofopportunity observation of a future eruption to study in unprecedented detailthe X-ray spectrum and characterise the emission components. Additionally, wewill study the flux variability of the early supersoft X-ray phase and measurethe corresponding X-ray spectral variations and the UV variability.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2016-12-26T12:06:31Z/2016-12-28T23:29:58Z
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.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2018-01-19T23:00:00Z
Last Update 2025-01-27
Keywords "m31n 2008 12a", "emission components", "M31", "recurrent nova", "shorter period", "xmm newton target", "apparent recurrence period", "XMM-Newton", "supersoft xray phase", "future eruption", "uv variability", "future eruptions", "successfully predicted", "XMM", "xray spectrum", "soon enter", "flux variability", "xray spectral variations"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Martin Henze, 2018, 'A detailed X-ray study of the unique recurrent nova M31N 2008-12a', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-sv8a4xj