Proposal ID | 065192 |
Title | X-rays from V838 Mon: a New Magnetic Dynamo, or Ejecta-Companion Interactions? |
Download Data Associated to the proposal | 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 |
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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 |