Anomalous dust in the environment of Herbig Ae/Be stars

dc.contributor.author	Gorti, U
dc.contributor.author	Bhatt, H. C
dc.date.accessioned	2008-07-23T11:34:43Z
dc.date.available	2008-07-23T11:34:43Z
dc.date.issued	1993-04
dc.identifier.citation	Astronomy and Astrophysics, Vol. 426, No. 1-2, pp. 426 - 431	en
dc.identifier.issn	0004-6361
dc.identifier.uri	http://hdl.handle.net/2248/2862
dc.description.abstract	Photometric data in the UBVRI bands of Herbig Ae/Be stars have been analyzed to study the wavelength dependence of extinction to these objects. The color excess ratios E(U-B)/E(B-V), E(V-R)/E(B-V), E(V-I)/E(B-V) and E(V-I)/E(V-R) for these stars have been computed and compared with those for the mean interstellar extinction. The color excess ratios for Herbig Ae/Be stars are found to be anomalous. For a majority of the Herbig Ae/Be stars the values of the color excess ratios imply that the dust causing extinction to these stars is dominated by grains that are larger in size than the average dust grain in the interstellar medium.	en
dc.format.extent	879609 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	European Southern Observatory	en
dc.relation.uri	http://adsabs.harvard.edu/abs/1993A%26A...270..426G	en
dc.subject	A stars	en
dc.subject	B stars	en
dc.subject	Cosmic dust	en
dc.subject	Stellar envelopes	en
dc.subject	UBV spectra	en
dc.subject	Astronomical photometry	en
dc.subject	Grain size	en
dc.title	Anomalous dust in the environment of Herbig Ae/Be stars	en
dc.type	Article	en