A dataset provided by the European Space Agency

Name 082207
Title X-rays Beyond the Wind Dividing Line


DOI https://doi.org/10.5270/esa-cn5fcur
Author Dr Julian David Alvarado-Gomez
Description Despite their fundamental role for the evolution of late-type stellar systems,
mass loss rates from winds are only known for 10 Sun-like stars. Two regimes
have been proposed separated by a wind dividing line\: winds increasing in
intensity with increasing activity up to moderate activity levels; and, based on
just one measurement, much weaker winds for the most active stars. We propose
observations of two active Sun-like stars to determine their X-ray fluxes and
activity, and confirm their location beyond the wind dividing line. These X-ray
data will lay the foundation for interpreting the results of our cycle 25 HST
programme to estimate their stellar wind mass loss rates, test predictions from
data-driven simulations, and illuminate the elusive relationship between coronal and wind energy output.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2018-09-08T15:15:19Z/2019-02-13T09:15:19Z
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 2020-03-13T23:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Julian David Alvarado-Gomez, 2020, 082207, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-cn5fcur