A dataset provided by the European Space Agency

Name 076319
Title Investigating Magnetic Activity in the Lowest Mass Pre-Main Sequence Stars


DOI https://doi.org/10.5270/esa-ed50t83
Author European Space Agency
Description The spectral type boundary that determines which very low-mass objects will
eventually become M stars, vs. brown dwarfs, remains poorly constrained during
pre-main sequence evolution. High-energy observations of pre-main sequence M
stars offer a means to probe chromospheric and coronal activity due to stellar
magnetic activity, so as to help determine this boundary. However, even though a
majority of stars in the solar neighborhood are of mid- to late-M type, the
X-ray activity of such stars remain essentially unexplored for the important age
range 10-100 Myr. We propose to use XMM-Newton to observe 9 nearby (Dvirgul50 pc),
young (age 10-100 Myr) stars of type M4-M9, to investigate the potential
decrease in UV and X-ray luminosities for very low-mass stars at this age.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2015-08-29T20:39:49Z/2015-08-30T02:46:28Z
Version 17.56_20190403_1200
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 2016-09-16T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2016, Investigating Magnetic Activity In The Lowest Mass Pre-Main Sequence Stars, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ed50t83