A dataset provided by the European Space Agency

Name 050179
Title XMM-Newton observations of NGC 2547: Probing magnetic dynamos at 35Myr


DOI https://doi.org/10.5270/esa-j7prmuf
Author Dr Robin Jeffries
Description We propose a deep EPIC survey of the open cluster NGC2547 to probe magnetic dynamos and thoroughly characterise coronal emission from low-mass pre-main sequence (PMS) stars at an accurately known age of 35Myr. By comparing the X-ray properties (luminosities, temperatures, flare rates) of about 150 coeval PMS stars in NGC 2547 at masses above and below the fully convective boundary (down to substellar masses) and, by contrasting their coronal properties with stars in younger and older clusters, we will test ideas that PMS magnetic activity is driven by a different dynamo to that in older stars. Such observations are crucial in establishing the intensity and duration of high energy irradiation of the circumstellar environments of young stars.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2007-11-12T21:47:06Z/2007-11-14T11:30:19Z
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 2008-12-11T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2008-12-11T00:00:00Z, 050179, 17.56_20190403_1200. https://doi.org/10.5270/esa-j7prmuf