ScholarLens Back to search
1992•Unpublished venueRequires access

The evolutionary stage of the Herbig Ae/Be stars in the R Coronae Australis star-forming region

E. A. Bibo, D. N. Dawanas

Open publisher page 0 citations

Abstract

Using data obtained with the IRAS and groundbased telescopes, the spectral energy distribution of the pre-main sequence stars HD 176386, TY CrA, R CrA and T CrA were constructed and analysed. For all stars two possible models, one based on a normal extinction law and another one with an extinction law characterized by R > 3.1 are considered. Only the latter model turns out to be acceptable. HD 176386 and TY CrA have excess radiation in the far infrared only. This excess is caused by rather cool dust (T ∼ 95 K) located at quite a distance from the central star (up to about 1000 AU)

About this research paper

What this paper is about

Using data obtained with the IRAS and groundbased telescopes, the spectral energy distribution of the pre-main sequence stars HD 176386, TY CrA, R CrA and T CrA were constructed and analysed. For all stars two possible models, one based on a normal extinction law and another one with an extinction law characterized by R > 3.1 are considered. Only the latter model turns out to be acceptable. HD 176386 and TY CrA have excess radiation in the far infrared only. This excess is caused by rather cool dust (T ∼ 95 K) located at quite a distance from the central star (up to about 1000 AU)

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Using data obtained with the IRAS and groundbased telescopes, the spectral energy distribution of the pre-main sequence stars HD 176386, TY CrA, R CrA and T CrA were constructed and analysed. For all stars two possible models, one based on a normal extinction law and another one with an extinction law characterized by R > 3.1 are considered. Only the latter model turns out to be acceptable. HD 176386 and TY CrA have excess radiation in the far infrared only. This excess is caused by rather cool dust (T ∼ 95 K) located at quite a distance from the central star (up to about 1000 AU)

Key concepts: Physics, Astrophysics, Stars, Herbig Ae/Be star, Extinction (optical mineralogy), Spectral energy distribution, Infrared excess, Star (game theory)

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
The evolutionary stage of the Herbig Ae/Be stars in the R Coronae Australis star-forming region — Research Paper | ScholarLens