A dataset provided by the European Space Agency

Name 078309
Title Investigating Magnetic Activity in the Lowest Mass Pre-Main Sequence Stars
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0783090101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0783090201

DOI https://doi.org/10.5270/esa-o123stk
Author Dr David Principe
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 10-50 Myr. We propose to use XMM-Newton to observe 6 nearby (Dvirgul50 pc), young (age 10-50 Myr) stars of type M6-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 2016-11-17T12:15:50Z/2016-11-17T23:50:21Z
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 2017-12-29T23:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2017-12-29T23:00:00Z, 078309, 17.56_20190403_1200. https://doi.org/10.5270/esa-o123stk