SIMBAD references

2009MNRAS.392..383J - Mon. Not. R. Astron. Soc., 392, 383-390 (2009/January-1)

Circumstellar disc geometry constrained by infrared line fluxes.

JONES C.E., MOLAK A., SIGUT T.A.A., DE KOTER A., LENORZER A. and POPA S.C.

Abstract (from CDS):

Lenorzer et al. introduce ratios of hydrogen infrared recombination lines as a diagnostic tool to constrain the spatial distribution and physical condition of circumstellar material around hot massive stars. They demonstrate that the observed line flux ratios Hu14/Brα and Hu14/Pfγ from different types of objects associated with circumstellar material, such as Be stars, B[e] stars, and Luminous Blue Variable (LBV) stars are well separated in a diagnostic diagram. In this paper, we investigate this diagnostic tool using a non-LTE disc code developed by Sigut & Jones focusing on Be discs. We find good agreement between the empirical and predicted locations of Be stars in the Hu14/Brα versus Hu14/Pfγ diagram and show that indeed this diagnostic tool can be used to constrain basic properties of the discs of these stars.

Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): circumstellar matter - stars: early-type - stars: emission-line, Be

Simbad objects: 15

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2019.10.16-22:56:52

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