Time-resolved spectroscopy of the post-AGB star HD 56126 | Zendy

R. D. Oudmaijer | Zendy; Eric J. Bakker | Zendy

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Time-resolved spectroscopy of the post-AGB star HD 56126

Author(s) -

R. D. Oudmaijer,

Eric J. Bakker

Publication year - 1994

Publication title -

monthly notices of the royal astronomical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.058

H-Index - 383

eISSN - 1365-8711

pISSN - 0035-8711

DOI - 10.1093/mnras/271.3.615

Subject(s) - physics , astrophysics , spectral line , spectroscopy , line (geometry) , astronomy , telescope , geometry , mathematics

We have investigated the report of Tamura and Takeuti that the Halpha line ofthe F-type post-AGB star HD56126 is variable on time scales of minutes. To thisend, HD56126 was observed on two occasions with the William Herschel Telescope.Seventeen, respectively thirty spectra were taken within time span of 1.5 hoursin order to detect any short term variations. We find that the Halpha lineprofile changed strongly over the two month interval, but no evidence is foundfor short term variability. The variability Tamura and Takeuti claim to find isprobably due to the low signal-to-noise in their spectra.Comment: 6 pages plain latex includes 4 encapsulated poscript files, uses psfig.sty and mn.sty; 1994, Monthly Notices of the Royal Astronomical Society, 271, 61

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