A dataset provided by the European Space Agency

Name 030564
Title Exploring the X-ray emission of G-type giants spun up by accretion


DOI 10.5270/esa-mxludos
Author Dr Kevin Briggs
Description Fast-rotation (v sin i of over 20 km-s) is rare among yellow (G2-K1) giants, restricted to tidally-synchronized binary components and the handful of FK Com- class single stars. Such stars have X-ray luminosities and plasma temperatures among the highest of known coronal sources. A number of yellow giants with v = 100 km-s have been found as companions to hot subdwarfs. These stars have been spun up by accretion of material from the companion during its AGB phase. We find the X-ray emission of the optically-brightest example to be an order of magnitude lower than that of FK Com stars. We propose to observe the only two bright comparable systems to discover whether such a surprisingly inefficient magnetic dynamo is a general outcome of accretive spin-up.
Publication The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue . Watson, M. G., Schroder, A. C., et all. . A&A . 493-339 . 2009 . 2009A&A...493..339W ,
Statistical evaluation of the flux cross-calibration of the XMM-Newton EPIC cameras . Mateos, S., Saxton, R. D., et all. . A&A . 496-879 . 2009 . 2009A&A...496..879M ,
The XMM Cluster Survey: optical analysis methodology and the first data release . Mehrtens, Nicola, Romer, A. Kathy, et all. . MNRAS . 423-1024 . 2012 . 2012MNRAS.423.1024M ,
An All-Sky Atlas of Radio-X-ray Associations . Flesch, E., . PASA . 27-283 . 2010 . 2010PASA...27..283F ,
The XMM Cluster Survey: X-ray analysis methodology . Lloyd-Davies, E. J., Romer, A. Kathy, et all. . MNRAS . 418-14 . 2011 . 2011MNRAS.418...14L ,
The cosmological analysis of X-ray cluster surveys - II. Application of the CR-HR method to the XMM archive . Clerc, N., Sadibekova, T., et all. . MNRAS . 423-3561 . 2012 . 2012MNRAS.423.3561C ,
Cross-correlation of the 2XMMi catalogue with Data Release 7 of the Sloan Digital Sky Survey . Pineau, F.-X., Motch, C., et all. . A&A . 527-126 . 2011 . 2011A&A...527A.126P ,
Exploring X-ray and radio emission of type 1 AGN up to z ~ 2.3 . Ballo, L., Heras, F. J. H., et all. . A&A . 545-66 . 2012 . 2012A&A...545A..66B ,
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2005-07-13T06:06:21Z/2006-01-19T07:08:40Z
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 2007-02-10T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2007-02-10T00:00:00Z, 030564, 17.56_20190403_1200. https://doi.org/10.5270/esa-mxludos