| Proposal ID | 011238 |
| Title | The Fainter Late-Type WTTS Population in the Sco-Cen Star Formation Region |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0112380101 |
| DOI | https://doi.org/10.5270/esa-fgssong |
| Principal Investigator, PI | Dr Martin Turner |
| Abstract | GT-We propose a deep EPIC observation of the nearby SFR Upper Sco-Cen wheremedium-deep pointed ROSAT observations (Sciortino et al. 1998) have shown thatthe shallow limiting sensitivity either of Einstein and RASS data prevents thesufficient sampling of the lowest mass and X-ray fainter stars strongly biasingthe estimate of the IMF. The proposed XMM observation will allow us to detectessentially all of the X-ray emitting population and to derive a reliable IMF atlow mass end. For all the known stars in the field of view we will also obtainEPIC spectra of quality better than any PMS ASCA, and even ACIS, spectra withthe same exposure time. This will allow us to constrain the physical conditionsin PMS coronae and to compare them with those of other coeval stellar samples. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2000-08-26T22:52:08Z/2000-08-27T13:58:28Z |
| 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 | 2002-10-06T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "xray emitting population", "pms coronae", "exposure time", "EPIC", "xray fainter stars", "pms asca", "physical conditions", "medium deep", "epic spectra", "lowest mass", "deep epic", "ROSAT", "low mass", "reliable imf", "XMM", "coeval stellar samples", "rass data prevents", "limiting sensitivity" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Martin Turner, 2002, 'The Fainter Late-Type WTTS Population in the Sco-Cen Star Formation Region', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-fgssong |