A dataset provided by the European Space Agency

Proposal ID 011264
Title Comparative X-ray study of deeply embedded stellar clusters in Orion B
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0112640101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0112640201

DOI https://doi.org/10.5270/esa-jpzimdl
Principal Investigator, PI Dr Bernd Aschenbach
Abstract GT- Orion-B has four main centers of star formation with cloud core masses from 260-430 solar masses. In ROSAT observations about 50 X-ray sources within 100 sq.amin have been found in NGC 2024. The X-ray sources appeared to be deeply embedded young stellar objects, possibly T-Tauri stars with kT = 1 keV. Excellent positional correlation was found with infrared K bandobjects. We want to obtain information on the content of point sources, on source variability, on the mass range, on correlation with IR properties, and on the relation of richness of X-ray clusters with parameters like SFE and core mass.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2002-03-06T13:11:44Z/2002-03-24T18:54:37Z
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 2003-06-16T00:00:00Z
Last Update 2025-01-27
Keywords "ir properties", "ngc 2024", "tauri stars", "core mass", "xray cluster", "stellar objects", "mass range", "NGC 2024", "main centers", "source variability", "comparative xray", "xray sources", "deeply embedded", "cloud core masses", "star formation", "positional correlation", "ROSAT", "band objects", "xray sources appeared"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Bernd Aschenbach, 2003, 'Comparative X-ray study of deeply embedded stellar clusters in Orion B', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-jpzimdl