A dataset provided by the European Space Agency

Name 020173


DOI https://doi.org/10.5270/esa-pwsoo62
Author Dr JOHN PYE
Description We propose deep EPIC surveys of the Hyades-age open star clusters NGC 6633 and IC 4756. These are the only such clusters with relatively small angular diameter (less than about 1 deg.) within 800 pc. The 50ks exposures will reach below the median X-ray luminosities seen in the Hyades, even for dM stars, and (1) allow definitive inter- and intra-cluster comparisons; (2) probe the magnetic dynamo down to at least mid-M in each cluster. The NGC 6633 observations will complement our ongoing optical programme; we have now surveyed the cluster to late-M. NGC 6633 is the most iron-poor of the Hyades-age clusters and hence the most crucial when looking for composition effects.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-10-10T03:49:22Z/2004-10-14T07:13:36Z
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 2005-11-12T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2005-11-12T00:00:00Z, 020173, 17.56_20190403_1200. https://doi.org/10.5270/esa-pwsoo62