XMM-Newton Proposal 03006901

Details XMM-Newton Proposal 03006901 XMM-Newton Proposal 03006901

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004xmm..prop...25p&link_type=abstract

XMM-Newton Proposal ID #03006901

Physics

Stars, White Dwarfs, Solar System, Ngc 6475, Xmm-Newton Proposal 03006901

Scientific paper

We propose to observe the open cluster NGC 6475 (age ~220 Myr, [Fe/H] = 0.14 +- 0.06) to investigate the activity-rotation-age relationship of low-mass stars in the crucial age interval between the Pleiades and the Hyades. We will use XMM-Newton observations of the proposed cluster to go a factor of 10 deeper than ROSAT (to detect new faint candidate members) and to obtain spectral information on the brightest cluster members (to derive coronal temperatures and metallicities). These observations will provide strong constraints on the universality (or lack of) of the activity-rotation-age relationship, and hence on dynamo models of stellar coronal activity.

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