dc.contributor.author |
Parthasarathy, M |
|
dc.contributor.author |
Pottasch, S. R |
|
dc.contributor.author |
Wamsteker, W |
|
dc.date.accessioned |
2008-09-17T11:43:28Z |
|
dc.date.available |
2008-09-17T11:43:28Z |
|
dc.date.issued |
1988-09 |
|
dc.identifier.citation |
Astronomy and Astrophysics , Vol. 203, No. 1, pp. 117 - 122 |
en |
dc.identifier.issn |
0004-6361 |
|
dc.identifier.uri |
http://hdl.handle.net/2248/3701 |
|
dc.description.abstract |
Low resolution (6 A) IUE ultraviolet spectra of the high galactic latitude F supergiants HD 161796 (F3 Ib) and HD 187885 (F2-3I) are analyzed. The UV spectrum (1250 A to 3250 A) of HD 161796 shows no excess UV flux attributable to a hot degenerate companion. From the UV spectrum the temperature is found to be 6300 K. There is no evidence for significant metal deficiency. Except for the semiforbidden N IV 1487 A line the rest of the transition region emission lines are weak. In spite of the large IR (IRAS) excess, the 2200 A region shows no evidence for circumstellar reddening. The UV spectrum (1250 A to 1900 A) of HD 187885 is peculiar. A broad emission feature with emission peak centered around 1580 A is present. A broad absorption feature nearly 100 A wide centered around 1657 A appears to be present. This absorption feature may be due to C I or due to quasi-molecular absorption of the H2. |
en |
dc.language.iso |
en |
en |
dc.publisher |
European Southern Observatory |
en |
dc.relation.uri |
http://ads.ari.uni-heidelberg.de/abs/1988A%26A...203..117P |
en |
dc.subject |
Hot Stars |
en |
dc.subject |
IUE |
en |
dc.subject |
Supergiant Stars |
en |
dc.subject |
Ultraviolet Astronomy |
en |
dc.subject |
Absorption Spectra |
en |
dc.subject |
F Stars |
en |
dc.subject |
Infrared Astronomy Satellite |
en |
dc.subject |
Planetary Nebulae |
en |
dc.subject |
Stellar Temperature |
en |
dc.title |
IUE observations of high galactic latitude F supergiants HD 161796 and HD 187885 |
en |
dc.type |
Article |
en |