skip to main content
Ngôn ngữ:
Giới hạn tìm kiếm: Giới hạn tìm kiếm: Dạng tài nguyên Hiển thị kết quả với: Hiển thị kết quả với: Chỉ mục

Newly Discovered Wolf-Rayet and Weak Emission-Line Central Stars of Planetary Nebulae

Depew, Kyle ; Parker, Quentin A. ; Miszalski, Brent ; De Marco, Orsola ; Frew, David J. ; Acker, Agnes ; Kovacevic, Anna V. ; Sharp, Rob G.

Arxiv ID: 1101.2468

Toàn văn sẵn có

Trích dẫn Trích dẫn bởi
  • Nhan đề:
    Newly Discovered Wolf-Rayet and Weak Emission-Line Central Stars of Planetary Nebulae
  • Tác giả: Depew, Kyle ; Parker, Quentin A. ; Miszalski, Brent ; De Marco, Orsola ; Frew, David J. ; Acker, Agnes ; Kovacevic, Anna V. ; Sharp, Rob G.
  • Chủ đề: Astrophysics - Solar And Stellar Astrophysics
  • Mô tả: We present spectra of 32 previously unpublished confirmed and candidate Wolf-Rayet ([WR]) and weak emission-line (WELS) central stars of planetary nebulae (CSPNe). Eighteen stars have been discovered in the Macquarie/AAO/Strasbourg H-Alpha (MASH) PN survey sample, and we have also uncovered 14 confirmed and candidate [WR]s and WELS among the CSPNe of previously known PNe. Spectral classifications have been undertaken using both the Acker & Neiner and Crowther, De Marco & Barlow schemes. Twenty-two members in this sample are identified as probable [WR]s; the remaining 10 appear to be WELS. Observations undertaken as part of the MASH spectroscopic survey have now increased the number of known [WR]s by ~30 per cent. This will permit a better analysis of [WR] subclass distribution, metallicity effects, and evolutionary sequences in these uncommon objects. Comment: 19 pages, 5 figures, 4 tables, accepted for publication in MNRAS
  • Số nhận dạng: Arxiv ID: 1101.2468

Đang tìm Cơ sở dữ liệu bên ngoài...