SIMBAD references

1999AJ....118.2974R - Astron. J., 118, 2974-2987 (1999/December-0)

Mid-infrared spectra of Be stars.


Abstract (from CDS):

We present the first medium-resolution (R∼600) mid-infrared (8-13.3 µm) spectra of 11 Be stars. A large number of lines are observed and identified in these spectra, including, as an example, 39 hydrogen recombination lines in the spectrum of γ Cas. In the majority of our spectra, all of the observed lines are attributable to hydrogen recombination. Two of the sources, β Lyr and MWC 349, also show emission from other species. Both of these objects show evidence of [Ne II] emission, and β Lyr also shows evidence of He I emission. We tabulate the effective line strength and line widths for the observed lines and briefly discuss the physical implications of the observed line series. We also use a simple model of free-free emission to characterize the disks around these sources.

Abstract Copyright:

Journal keyword(s): Infrared Radiation - Stars: Emission-Line, Be

Simbad objects: 12

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