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 |
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 |
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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 |