A dataset provided by the European Space Agency

Proposal ID 065192
Title X-rays from V838 Mon: a New Magnetic Dynamo, or Ejecta-Companion Interactions?
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0651920101

DOI https://doi.org/10.5270/esa-azk04wq
Principal Investigator, PI Prof JOEL KASTNER
Abstract Our discovery with XMM in 2008 of a composite X-ray source that is spatiallycoincident with V838 Mon has placed unique new constraints on models put forwardto explain its 2002 outburst. The properties of the V838 Mon X-ray source areconsistent with a stellar merger scenario for the outburst. Alternatively, theX-ray source(s) could be indicative of interactions between ejecta from V838 Monand its early-type conpanion. Given the complete disappearance of the companionstar into V838 Mons ejecta shortly after our XMM detection, the new 100 ksobservation proposed here will distinguish between these two X-ray sourceorigins.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2011-03-25T16:38:15Z/2011-03-26T23:10:21Z
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 2012-04-08T00:00:00Z
Last Update 2025-01-27
Keywords "2002 outburst", "type conpanion", "ejecta shortly", "xray source origins", "xmm detection", "companion star", "x rays", "xray sources", "composite xray source", "XMM", "complete disappearance", "stellar merger scenario", "magnetic dynamo", "v838 mon"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Prof JOEL KASTNER, 2012, 'X-rays from V838 Mon: a New Magnetic Dynamo, or Ejecta-Companion Interactions?', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-azk04wq