POSTER PAPER 4.13

The Chandra View of the Very Young Cluster IC 348
Thomas Preibisch, Hans Zinnecker

Institute: Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69 D-53121 Bonn, Germany
Institute: Astrophysikalisches Institut Potsdam, An der Sternwarte 16, D--14482 Potsdam, Germany
Contact Email: preib@mpifr-bonn.mpg.de

Abstract: We summarize some of the initial results of a deep (53 ksec) X-ray imaging study of the very young stellar cluster IC 348 with the Advanced CCD Imaging Spectrometer on board the Chandra X-Ray Observatory. Our image with a sensitivity limit of ~ 1x1028 erg/sec reveals 215 X-ray sources. About 80% of all cluster members known from optical/infrared spectroscopic studies which have masses between ~ 0.15 MSun and 2 MSun are detected as X-ray sources. We discover X-ray emission at levels of ~ 1028 erg/sec from 7 of the known brown dwarfs and brown dwarf candidates in IC 348. The X-ray properties of the brown dwarfs are similar to those of late M-type field stars, suggesting that the X-ray emission of the sub-stellar objects originates from a hot corona.

The Chandra View of the Very Young Cluster IC 348 [PDF - Type 1 fonts]

The Chandra View of the Very Young Cluster IC 348 [PS]

Index Keywords: IC 348; Chandra Observatory; Brown Dwarfs

Previous: Hempel Next: Thompson
Up: Poster Index Up: Top Index

Manuscript submitted: 2001-Aug-28
"The Future of Cool-Star Astrophysics", 2003, Eds. A. Brown, G. M. Harper, & T. R. Ayres. Proceedings of 12th Cambridge Workshop on Cool Stars, Stellar Systems, & The Sun,
© 2003 University of Colorado.