A dataset provided by the European Space Agency

Name 004935
Title STUDYING THE SMALLEST FLARES ON ACTIVE STARS: PROXIMA CENTAURI
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0049350101
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0049350201

DOI 10.5270/esa-s3cy089
Author Dr Manuel Guedel
Description Proxima Centauri is the nearest star to the Sun, and at the same time a well- studied, magnetically active late-type flare star. It is frequently flaring, with flare energies similar to larger solar flares. There is increasing evidence that flares play a major role in solar coronal heating, in particular the large number of small flares (microflares). This concept needs to be tested on magnet- ically active stars. Selecting the most sensitive instrument and the nearest active star will give access to the lowest-energy but potentially most important X-ray flares ever studied on any star other than the Sun. Our proposal for a 50ks XMM observation of Prox Cen will thus build a bridge from solar concepts to magnetically active stars.
Publication Flares from small to large: X-ray spectroscopy of Proxima Centauri with XMM-Newton . Gudel, M., Audard, M., et all. . A&A . 416-713 . 2004 . 2004A&A...416..713G ,
Modeling an X-ray flare on Proxima Centauri: Evidence of two flaring loop components and of two heating mechanisms at work . Reale, F., Gudel, M., et all. . A&A . 416-733 . 2004 . 2004A&A...416..733R ,
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 ,
X-Ray Evidence for Flare Density Variations and Continual Chromospheric Evaporation in Proxima Centauri . Gudel, Manuel, Audard, Marc, et all. . ApJ . 580-73 . 2002 . 2002ApJ...580L..73G ,
Abundance variations and first ionization potential trends during large stellar flares . Nordon, R., Behar, E., . A&A . 482-639 . 2008 . 2008A&A...482..639N ,
A Search for New Galactic Magnetars in Archival Chandra and XMM-Newton Observations . Muno, M. P., Gaensler, B. M., et all. . ApJ . 680-63...
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2001-08-12T03:14:23Z/2001-08-12T22:37:34Z
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 2002-10-03T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2002-10-03T00:00:00Z, 004935, 17.56_20190403_1200. https://doi.org/10.5270/esa-s3cy089