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Near Infrared Spectroscopic Observations of Early-type Be Stars

Published online by Cambridge University Press:  12 April 2016

N. M. Ashok  and
D. P. K. Banerjee
N. M. Ashok
Affiliation:
Astronomy and Astrophysics Division, Physical Research Laboratory Ahmedabad 380009, India
D. P. K. Banerjee
Affiliation:
Astronomy and Astrophysics Division, Physical Research Laboratory Ahmedabad 380009, India

Abstract

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The medium resolution (R=1000) near infrared spectra of 30 early type Be stars obtained during the period October 1998-April 1999 are presented. The Paschen β and Brackett γ lines are seen in emission in majority of these stars. The higher order Brackett series lines from m=10 to 19 are detected in emission with significant strength compared to the Brackett γ emission line flux indicating the effect of optical depth. The Fe II line at 1.6873μm is detected in a small number of stars indicating existence of higher density and lower temperature emission zone.

Type
6. Disks
Information
International Astronomical Union Colloquium , Volume 175: The Be Phenomenon in Early-Type Stars , 2000 , pp. 468 - 471
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

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