A dataset provided by the European Space Agency

Name 067196
Title Interactions of flares, accretion and wind in young stars


DOI https://doi.org/10.5270/esa-f3j0nz2
Author Dr Hans Moritz Guenther
Description Young stars can produce X-rays by different mechanisms: Coronal activity,
accretion shocks and shocks in outflows. We propose to observe two targets
within one field-of-view (FOV): SU Aur is accreting mass from a disk and shows
violent coronal activity. We will study the time evolution of stellar flares on
time scales from seconds to minutes using the high count rate in the EPIC and
the OM to discover interactions with the accretion streams: The signature of the
flare onset will differ in X-rays and UV between flares on coronal loops and
flares on those field lines, which carry the accretion stream from the disk. AB
Aur is more massive, it shows a tentative modulation in the X-ray luminosity
apparently without spectral changes and contrary to model expectations.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2012-02-15T20:48:40Z/2012-02-17T01:27:38Z
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 2012-05-08T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Hans Moritz Guenther, 2012, 067196, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-f3j0nz2