| Proposal ID | 074307 |
| Title | Magnetic Activity in the Lowest Mass Pre-main Sequence Stars |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0743070101 |
| DOI | https://doi.org/10.5270/esa-s4w69lt |
| Principal Investigator, PI | Mr David Principe |
| Abstract | The spectral type boundary that determines which very low-mass objects willeventually become M stars, vs. brown dwarfs, remains poorly constrained duringpre-main sequence evolution. X-ray observations of pre-main sequence M starsoffer a means to probe internal and surface stellar magnetic activity, so as tohelp determine this boundary. However, even though a majority of stars in thesolar neighborhood are of mid- to late-M type, the X-ray activity of such starsremain essentially unexplored for the important age range 10-100 Myr. We proposeto use XMM-Newton to observe 14 nearby (Dvirgul50 pc), young (age 10-40 Myr) stars oftype M3-M6, to investigate the potential decrease in X-ray luminosity for verylow-mass stars at this age. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2014-04-15T04:06:01Z/2014-08-21T16:34:09Z |
| 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 | 2015-09-05T22:00:00Z |
| Keywords | "myr stars", "xray activity", "XMM-Newton", "probe internal", "xmm newton", "M3", "xray luminosity", "poorly constrained", "potential decrease", "low mass stars", "age range", "XMM", "low mass objects", "type m3 m6", "spectral type boundary", "pre main sequence", "solar neighborhood", "magnetic activity", "brown dwarf" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Mr David Principe, 2015, 'Magnetic Activity in the Lowest Mass Pre-main Sequence Stars', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-s4w69lt |