A dataset provided by the European Space Agency

Name 005514
Title Search for X-ray Emission in the Nearest Known Brown Dwarf


DOI https://doi.org/10.5270/esa-9g5on15
Author Dr Eduardo Martin
Description We propose to take advantage of the unprecedented sensitivity of XMM to detect coronal emission from the nearest brown dwarf. LP 944-20 is at only 5 pc. It was discovered back in 1975 by Luyten and Kowal, but only recently was it recognized to be a brown dwarf thanks to the lithium test (Tinney 1998). It has an age of about 0.5 Gyr, and a mass of about 60 Jupiters. With XMM we will detect coronal emission even if the X-ray luminosity is 1 million times fainter than the bolometric luminosity. LP 944-20 can provide the best answer to the question of whether brown dwarfs have coronae.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2001-01-07T14:26:23Z/2001-01-08T04:43:13Z
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 2002-02-24T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2002-02-24T00:00:00Z, 005514, 17.56_20190403_1200. https://doi.org/10.5270/esa-9g5on15