Waite, Ian A. and Carter, Brad D. and Marsden, Stephen C. and Mengel, Matthew Wayne (2005) High-resolution spectroscopy of some active southern stars. Publications of the Astronomical Society of Australia, 22 (1). pp. 29-35. ISSN 1323-3580
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Official URL: http://www.publish.csiro.au/nid/138/paper/AS04058.htm
Identification Number or DOI: doi:10.1071/AS04058
Abstract
High-resolution echelle spectra of 42 nearby southern solar-type stars have been obtained, in a search for young, single, active, and rapidly rotating sun-like stars suitable for Doppler imaging and Zeeman Doppler imaging studies. As a result of this survey, 13 stars were determined to be youthful with ages less than 600 Myr (Hyades age) and eight of these were found to have projected rotational velocities in excess of 15 kms s-1. In addition, five spectroscopic binary systems were identified. Of those stars observed for this survey, HD 106506 is the most outstanding target for mapping active regions. It is an apparently young and single star with rapid rotation (v sini i 80 kms s-1), strong H alpha chromospheric activity and deformation of the spectral line profiles indicating the presence of large starspots.
| Item Type: | Article (DEST Category C) |
|---|---|
| Additional Information: | Author's version deposited in accordance with the copyright policy of the publisher. |
| Uncontrolled Keywords: | stars, activity, spots, magnetic fields, rotation |
| Fields of Research (FOR2008): | UNSPECIFIED |
| Subjects: | 240000 Physical Sciences > 240100 Astronomical Sciences |
| Socio-Economic Objective (SEO2008): | UNSPECIFIED |
| ID Code: | 464 |
| Deposited By: | epEditor USQ |
| Deposited On: | 11 Oct 2007 10:21 |
| Last Modified: | 23 Dec 2008 15:22 |
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