Coronal Variability in the Young Cluster NGC 2516

Details Coronal Variability in the Young Cluster NGC 2516 Coronal Variability in the Young Cluster NGC 2516

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003csss...12...81w&link_type=abstract

The Future of Cool-Star Astrophysics: 12th Cambridge Workshop on Cool Stars , Stellar Systems, and the Sun (2001 July 30 - Augus

Astronomy and Astrophysics

Astrophysics

1

Clusters: Ngc2516, M42

Scientific paper

We discuss our ongoing analysis of Chandra observations of the young open cluster NGC 2516. NGC 2516 was observed by Chandra to boresight correct the spacecraft's focal plane instruments. Because of this, CXO observed NGC 2516 with all imaging arrangements available. In addition, it has been observed as part of the HRC guaranteed time program and is scheduled for return boresight calibration visits. This makes it the best cluster to study for long term variability. NGC 2516 is about 100 Myrs old and less than 400 pc away. We have detected about 275 sources, almost half of which have been confirmed as cluster members. We explore techniques of combining ACIS and HRC Chandra data for timing analysis. We have been able to combine almost 100 ks of observation time, spread over four epochs to study variability in this cluster on multiple time scales.

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