A dataset provided by the European Space Agency

Name 074170
Title Coronal activity cycles in solar analog stars
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0741700301
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0741700401
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0741700501
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0741700601
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0741700701
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0741700801
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0741700901

DOI https://doi.org/10.5270/esa-lkaazf4
Author Dr Fabio Favata
Description We propose continuation into AO13 of the ongoing long-term program for the monitoring of coronal cycles in a sample of five solar-type stars in three stellar systems. The targets have been monitored continuously since AO1, yielding the first unambiguous evidence of cyclic behavior in the X-ray emission from the coronae of cool stars. Thanks to the long-term monitoring our program is starting to show evidence of the complex behavior of stellar cycles, with significant cycle-to-cycle variability becoming apparent. The observations requested in AO-13 will allow us to capitalize on our long-term investment of XMM-Newton observing time and to continue assembling a unique long-term data set that is likely to remain unmatched for a long time.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2014-04-28T00:30:53Z/2015-04-30T17:55:17Z
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 2016-05-18T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2016-05-18T22:00:00Z, 074170, 17.56_20190403_1200. https://doi.org/10.5270/esa-lkaazf4