Hopewell, E.C., Barlow, M.J., Drew, J.E. et al. (7 more authors) (2005) Five WC9 stars discovered in the AAO/UKST Hα survey. Monthly Notices of the Royal Astronomical Society, 363 (3). pp. 857-866. ISSN 0035-8711
Abstract
We report the discovery of five massive Wolf–Rayet (WR) stars resulting from a programme of follow-up spectroscopy of candidate emission-line stars in the Anglo-Australian Observatory United Kingdom Schmidt Telescope (AAO/UKST) Southern Galactic Plane Hα survey. The 6195–6775 Å spectra of the stars are presented and discussed. A WC9 class is assigned to all five stars through comparison of their spectra with those of known late-type WC stars, bringing the known total number of Galactic WC9 stars to 44. Whilst three of the five WC9 stars exhibit near-infrared (NIR) excesses characteristic of hot dust emission (as seen in the great majority of known WC9 stars), we find that two of the stars show no discernible evidence of such excesses. This increases the number of known WC9 stars without NIR excesses to seven. Reddenings and distances for all five stars are estimated.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2005 RAS. Reproduced in accordance with the publisher's self-archiving policy. |
Keywords: | surveys; circumstellar matter; stars : Wolf-Rayet; Galaxy : stellar content; WOLF-RAYET STARS; CLUSTER WESTERLUND-1; MASSIVE STARS; INNER GALAXY; POPULATION; CATALOG; SEARCH; EVOLUTION; EMISSION; SPECTROSCOPY |
Dates: |
|
Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 10 Apr 2019 15:39 |
Last Modified: | 10 Apr 2019 15:39 |
Status: | Published |
Publisher: | Oxford University Press |
Refereed: | Yes |
Identification Number: | 10.1111/j.1365-2966.2005.09487.x |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:144721 |