A dataset provided by the European Space Agency

Proposal ID 014830
Title X-ray emission from young Brown Dwarfs in the sigma Orionis association
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0148300101
DOI https://doi.org/10.5270/esa-22q19p7
Principal Investigator, PI Ms Felicitas Mokler
Abstract We propose for XMM-Newton observations of very low-mass objects in the youngstellar association around the multiple star sigma Orionis. Our scientific goalis to study magnetic activity of young objects from the hydrogen burning masslimit down to the deuterium burning limit. The sig Ori association contains anumber of objects with planetary masses and Brown Dwarfs (BDs); some of thelatter ones were shown to be X-ray sources in ROSAT pointings. We plan amultiwavelength study including X-ray and optical observations as magneticactivity is manifested in a large range of the spectrum. These observationscould lead to the first X-ray detection of objects close to the planetary masslimit and help to discriminate between BDs and planets in this region.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-08-30T13:51:24Z/2003-08-31T09:05:01Z
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 2004-10-01T00:00:00Z
Keywords "magnetic activity", "rosat pointings", "sig ori", "objects close", "sigma orionis", "XMM", "xmm newton", "x ray emission", "low mass objects", "xray sources", "deuterium burning limit", "xray detection", "planetary masses", "XMM-Newton", "planetary mass limit", "brown dwarf bds", "ROSAT", "brown dwarf"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Ms Felicitas Mokler, 2004, 'X-ray emission from young Brown Dwarfs in the sigma Orionis association', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-22q19p7