dc.contributor.author |
Kameswara Rao, N |
|
dc.contributor.author |
Rajamohan, R |
|
dc.date.accessioned |
2008-12-17T12:49:46Z |
|
dc.date.available |
2008-12-17T12:49:46Z |
|
dc.date.issued |
1982-09 |
|
dc.identifier.citation |
Journal of Astrophysics and Astronomy, Vol. 3, pp. 267 - 276 |
en |
dc.identifier.issn |
0250-6335 |
|
dc.identifier.uri |
http://hdl.handle.net/2248/4095 |
|
dc.description |
Open Access |
|
dc.description.abstract |
HD 147010, which is in the reflection nebula vdB 102, has been found to be a hot Ap silicon star rather than a normal A supergiant. From the UBV and JHK photometry of the star, color excess E(B-V) of 0.29 and the ratio of total-to-selective absorption R of 4.3 have been obtained. The high value of R implies bigger grain size and also confirms the association of the star with the nebula. The dereddened colors of the star can be fitted to a theoretical energy distribution with an effective temperature of approximately 13,000 + or - 500 K and log g = 3.6 + or - 0.2. HD 147010 has also been found to be a spectrum variable; in particular, lines of Cr II show large intensity variations. |
en |
dc.language.iso |
en |
en |
dc.publisher |
Indian Academy of Sciences |
en |
dc.relation.uri |
http://adsabs.harvard.edu/abs/1982JApA....3..267R |
en |
dc.relation.uri |
http://www.springerlink.com/content/d36466327436431w/ |
en |
dc.rights |
©Indian Academy of Sciences |
|
dc.subject |
Peculiar Stars |
en |
dc.subject |
A Stars |
en |
dc.subject |
Reflection Nebulae |
en |
dc.subject |
Stellar Spectrophotometry |
en |
dc.subject |
Energy Distribution |
en |
dc.subject |
Interstellar Extinction |
en |
dc.subject |
Line Spectra |
en |
dc.subject |
Scorpius Constellation |
en |
dc.subject |
Stellar Color |
en |
dc.subject |
Stellar Luminosity |
en |
dc.subject |
Stellar Temperature |
en |
dc.subject |
Ubv Spectra |
en |
dc.subject |
Spectrum Variables |
|
dc.title |
HD 147010:The AP star in the reflection nebula vdB 102 in upper scorpius region |
en |
dc.type |
Article |
en |