A dataset provided by the European Space Agency

Name 006694
Title The coronae of very low mass stars and brown dwarfs in NGC 2547


DOI https://doi.org/10.5270/esa-2ox8hmf
Author Dr Robin Jeffries
Description We propose a deep EPIC observation of the very young, rich open cluster NGC 2547 (isochrone age 14+--4 Myr). We will construct uncensored X-ray luminosity functions for optically selected samples of virgul100 very low mass stars (<0.4Msun) and attempt to detect X-ray emission from the 25-30 brown dwarf candidates within the EPIC field at a diagnostically important sensitivity. NGC 2547 is the best cluster with which to test the activity-rotation-age paradigm in young, pre-main sequence stars with different structural properties to ZAMS stars. We will deduce whether an interface between radiative and convective zones is influential in the magnetic dynamo process, and probe the nature of the dynamo at the lowest masses and saturation effects at low Rossby numbers.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2002-04-02T23:10:18Z/2002-04-03T13:21:24Z
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 2003-05-16T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2003-05-16T00:00:00Z, 006694, 17.56_20190403_1200. https://doi.org/10.5270/esa-2ox8hmf