| Autor: |
OUDMAIJER, RD, BAKKER, EJ |
| Přispěvatelé: |
University of Groningen |
| Jazyk: |
angličtina |
| Rok vydání: |
1994 |
| Předmět: |
|
| Zdroj: |
Monthly Notices of the Royal Astronomical Society, 271(3), 615-620. Oxford University Press |
| ISSN: |
0035-8711 |
| Popis: |
We have investigated the report of Tamura and Takeuti that the H alpha line of the F-type post-AGB star HD56126 is variable on time-scales of minutes. To this end, HD 56126 was observed on two occasions with the William Herschel Telescope. 17 and 30 spectra (first and second runs, respectively) were taken within time-spans of 1.5 h in order to detect any short-term variations. We find that the H alpha line profile changed strongly over the two-month interval, but no evidence is found for shortterm variability. The variability Tamura and Takeuti claim to find is probably due to the low signal-to-noise ratio in their spectra. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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