A dataset provided by the European Space Agency

Name 060317
Title Evolution of an Active Stellar Corona on Time Scales of Days
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0603170201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0603170301
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0603170401
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0603170501

DOI https://doi.org/10.5270/esa-2feoegr
Author Prof Ehud Behar
Description The solar corona evolves on time scales of days to years reflecting local and
global solar magnetic variations. The changes in coronal activity are observed
through temperature and abundance variations over these time scales. Coronae of
other stars are believed to be analogous to that of the sun, but can be orders
of magnitude more active. Despite the assumed similarity, we are lacking a
systematic study of the evolution of a stellar corona on the r^ant time scale
of days. We propose to carry out iso-phase snapshots of the active corona of EI
Eri over six days in order to study for the first time the chemical and thermal
evolution of active regions on a stellar corona over the time scales typical of
evolving solar coronal loops.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2009-08-01T00:02:50Z/2009-08-07T07:31:32Z
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 2010-09-02T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Prof Ehud Behar, 2010, 060317, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-2feoegr