A dataset provided by the European Space Agency

Name 078511
Title A Snapshot Survey of the Hyades\: Testing Models for Magnetic Saturation


DOI https://doi.org/10.5270/esa-hazk0nt
Author Prof Marcel Agueros
Description Investigations of the relationship between stellar magnetic activity and
rotation reveal the presence of a saturation threshold where, for unknown
reasons, activity no longer varies with rotation period (Prot). However, these
studies have focused on stars in young open clusters (<500 Myr) and field stars
(2-10 Gyr). Measuring Prot and proxies for magnetic activity in older open
clusters is essential to understand the evolution of the activity-rotation
relation from the ZAMS to the age of field stars. We propose a snapshot X-ray
survey of K and M dwarfs with measured Prot in the 650-Myr-old Hyades. By
matching the resulting X-ray catalog to our catalog of 134 Hyades Prot, we will
analyze the behavior of coronal activity as a function of Rossby number Ro at 650 Myr.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2016-08-17T00:55:03Z/2017-03-08T01:40:00Z
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 2018-03-29T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Prof Marcel Agueros, 2018, 078511, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-hazk0nt