dc.contributor.author |
Kameswara Rao, N |
|
dc.contributor.author |
Nandy, K |
|
dc.date.accessioned |
2013-04-12T11:58:59Z |
|
dc.date.available |
2013-04-12T11:58:59Z |
|
dc.date.issued |
1988 |
|
dc.identifier.citation |
Academie Royale de Belgique, Bulletin De La Classe des Sciences, Vol. 74, No. 11, pp. 376-388 |
en |
dc.identifier.issn |
0001-4141 |
|
dc.identifier.uri |
http://hdl.handle.net/2248/6026 |
|
dc.description.abstract |
Radio and Brackett gamma observations indicate large value of reddening E(B - V) = 1.5 to the nebula surrounding V348 Sgr, where as the star appears to be reddened by only E(B - V) is approximately 0.4. The infrared observations both ground based and with IRAS show that there are two dust components present: the hot dust represented by a 600 K black body longward of 3.5 micron and another cool dust (100 K or less) black body. The hot dust extends to about 6 arcsec radius from the star. The cool dust component surrounds the nebula and probably is responsible for the high extinction in the nebula. A tilted hollow cylinder or a tilted disk with a cavity type structure seems to be needed to account for the lack of reddening toward the star. Similarities of the nebular and dust properties of V348 Sgr and R Cr B indicate that they are approaching the red giant stage for a second time. |
en |
dc.language.iso |
en |
en |
dc.publisher |
Bruxelles : Palais des Académies |
en |
dc.relation.uri |
http://adsabs.harvard.edu//abs/1988STIA...9049085R |
en |
dc.rights |
© Bruxelles : Palais des Académies |
en |
dc.subject |
Infrared astronomy |
en |
dc.subject |
Interstellar extinction |
en |
dc.subject |
Nebulae |
en |
dc.subject |
R coronae borealis stars |
en |
dc.subject |
Black body radiation |
en |
dc.subject |
Infrared astronomy satellite |
en |
dc.subject |
Infrared photometry |
en |
dc.subject |
Sagittarius constellation |
en |
dc.title |
Reddening and dust distribution around V348 SGR |
en |
dc.type |
Article |
en |