A dataset provided by the European Space Agency

Proposal ID 011112
Title X-ray Emission from Protostars SSC_20
Download Data Associated to the proposal

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0111120101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0111120201

DOI https://doi.org/10.5270/esa-0u3vani
Principal Investigator, PI Dr Michael Watson
Abstract GT- Observations with ROSAT and ASCA have shown that X-rays can be efficientlydetected from young objects deeply embedded in molecular clouds, extinction upto Av=40 or more, implying substantial X-ray luminosities: Lx=1E32-1E34 erg/s.X-rays are expected to strongly influence the physical state of the protostellargas and dust, with new implications for the early solar system. We propose toobtain 1-10 keV spectra of two evolved protostars already known in X-rays, inorder to accurately measure the plasma temperature and the extinction; we willalso attempt to detect for the first time a very young protostar, still embeddedin a thick circumstellar envelope.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2001-02-19T21:13:11Z/2001-04-09T16:04:59Z
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 2002-07-13T00:00:00Z
Last Update 2025-01-27
Keywords "thick circumstellar envelope", "protostars ssc_20", "1e32 1e34 erg", "evolved protostars", "kev spectra", "ROSAT", "objects deeply embedded", "x ray emission", "solar system", "protostellar gas", "plasma temperature", "molecular clouds"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Michael Watson, 2002, 'X-ray Emission from Protostars SSC_20', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-0u3vani