A dataset provided by the European Space Agency

Name 011137
Title GT Observations of Active Cool Stars: AR Lac


DOI https://doi.org/10.5270/esa-pzhdmcf
Author Dr Albert Brinkman
Description GT-AR Lac is a fully eclipsing RS CVn binary system with extremely active coronae on both stars. Previous missions have found a prominent X-ray minimum around the optical primary eclipse when the G star is occulted, and a shallow minimum around secondary eclipse. We propose here to study one ingress to or one egress from the primary eclipse. We will use the EPIC cameras to obtain a light curve in unprecedented detail, the RGS combined with the EPICs to determine time-dependent emission measure distributions and abundances, and the RGS to search for time-height-dependent densities. Simultaneous optical and radio observations will be proposed. One EPIC MOS will be operated in TIMING-medium filter mode, while the pn will observe with the SML window and thick filter.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2001-12-05T18:36:04Z/2001-12-06T03:33:49Z
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 2003-02-08T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2003-02-08T00:00:00Z, 011137, 17.56_20190403_1200. https://doi.org/10.5270/esa-pzhdmcf