A dataset provided by the European Space Agency

Proposal ID 069166
Title DG Tau and its jet in time
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0691660401
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0691660501

DOI https://doi.org/10.5270/esa-bpnnyan
Principal Investigator, PI Dr P. Christian Schneider
Abstract The classical T Tauri star DG Tau drives a spectacular jet which contains plasmawith temperatures ranging from 10^4 to >10^6 K within the innermost 50 AU.Although, the luminosity of the jet related X-ray emission varies by almost afactor of two within six years, no proper-motion could be observed as for theouter emission regions of the jet. We propose to monitor the luminosityevolution with two 25 ks exposures in order to derive the timescale on whichsuch variations occur. With the large multi-wavelength campaign currentlyunderway, this represents the unique chance to relate the evolution of the softX-ray emission with other jet tracers and thus to decide whether the X-rayemission is connected to the optically observed outflow of only 10^4 K.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2012-08-14T00:22:54Z/2012-09-14T21:15:20Z
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 2013-10-09T00:00:00Z
Keywords "jet tracers", "dg tau", "variations occur", "outer emission region", "spectacular jet", "multi wavelength campaign", "luminosity evolution", "xray emission", "temperatures ranging", "proper motion", "soft xray emission"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr P. Christian Schneider, 2013, 'DG Tau and its jet in time', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-bpnnyan