A dataset provided by the European Space Agency

Proposal ID 012371
Title High Resolution Spectroscopy of YY Gem
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0123710101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0123710201

DOI https://doi.org/10.5270/esa-xrehflw
Principal Investigator, PI Dr Albert Brinkman
Abstract PV- YY Gem is a close, fully eclipsing binary dMe binary with a period of 0.81d.Both the primary and the secondary eclipses show deep X-ray minima. At adistance of 71 arcsec, the quadruple system of Castor A+B is another X-raysource. This observation will be used to perform i) phase resolved spectroscopyduring a 1 d period; eclipses, flares and rotational modulation will bespectroscopically monitored and modeled; and ii) to perform RGS spectroscopy oftwo sources separated by 71 arcsec. We request position angle constraintsdisplacing the sources along the RGS cross-dispersion direction. The pn camerawill use the SML window/thick filter mode to block optical contamination fromCastor A+B. One MOS will be optimized for the detection of Castor A+B.
Publications
Instrument EMOS1, EMOS2, EPN, RGS1, RGS2
Temporal Coverage 2000-04-24T18:20:42Z/2000-04-25T21:15:19Z
Version 21.51_20241115_1113
Mission Description The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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 2001-10-11T00:00:00Z
Last Update 2026-07-09
Keywords "xray source", "deep xray minima", "yy gem", "quadruple system", "rotational modulation", "pn camera", "phase resolved spectroscopy", "block optical contamination", "sml window", "sources separated", "resolution spectroscopy", "secondary eclipses", "71 arcsec", "spectroscopically monitored", "perform rgs spectroscopy", "thick filter mode"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Albert Brinkman, 2001, 'High Resolution Spectroscopy of YY Gem', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-xrehflw
Rights Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.