A dataset provided by the European Space Agency

Proposal ID 015315
Title X-ray observation of protostars in the HH24-26 region in Orion B molecular cloud
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0153150101
DOI https://doi.org/10.5270/esa-93rsvb4
Principal Investigator, PI Dr Hideki Ozawa
Abstract We observe X-ray emission from low mass protostars and Herbig-Haro objects inthe HH24-26 region in Orion B molecular cloud. One goal is to establish theimportance of star-disk interactions in Class I protostars. We examine if the6.4 keV fluorescence line come from circumstellar disks, showing that thesedisks must be irradiated from plasma confined in large magnetic loops. Thesecond goal is to investigate the X-ray emission from Class 0 protostars, which is important since at this stage the central star has not yet assembled, hence the dynamo mechanism may not have started. The third goal is to investigate the origin of X-ray emission from Herbig-Haro objects, whose nature has not been well understood.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-09-03T12:51:35Z/2003-09-04T02:43:33Z
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 2004-10-08T00:00:00Z
Keywords "plasma confined", "molecular cloud", "dynamo mechanism", "magnetic loops", "circumstellar dis", "central star", "kev fluorescence line", "xray emission", "x ray", "star disk interactions", "low mass protostars", "herbig haro objects"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Hideki Ozawa, 2004, 'X-ray observation of protostars in the HH24-26 region in Orion B molecular cloud', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-93rsvb4