A dataset provided by the European Space Agency

Name 065229
Title EF Eridani in the low state


DOI https://doi.org/10.5270/esa-3hul3td
Author Prof Frederick Walter
Description The polar EF Eridani (2A 0311-227) was once one of the brightest soft X-ray sources in the sky. For the past decade it has been in an extended inactive state (with the exception of occasional short "burps"). We seek to study the residual X-ray activity in this system. The data suggest that the residual optical activity occurs either on the irradiated surface of the substellar mass companion or in a coupling region where the secondary.s wind and-or its magnetic field interacts with the megaGauss field of the white dwarf. X-ray observations will provide important clues to the magnetic geometry of polars, and the physics of the coupling region.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2011-01-15T08:10:05Z/2011-01-16T04:06:07Z
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 2012-02-03T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2012-02-03T00:00:00Z, 065229, 17.56_20190403_1200. https://doi.org/10.5270/esa-3hul3td