IRAS 17393-3004, a late-type supergiant surrounded by a dust shell

1999/08/24 by S. Philipp, Sabine Philipp, Richard J. Tuffs +9
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #Astrophysics and Star Formation Studies #FOS: Physical sciences #Stellar, planetary, and galactic studies #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/9908264

5 pages, 3 figures, accepted for publication in Astronomy & Astrophysics, Main Journal

arxiv created 1999/08/24 · openalex publication_date 1999/08/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Infrared observations of IRAS 17393-3004, including a full scan ISOSWS are presented. The ISOSWS spectrum shows two prominent dust emission peaks at lambda 10.4mu and 17.5mu confirming that the source is a luminous star surrounded by a dust shell. The spectrum of the star, deduced from modeling of the radiative transfer through a spherical shell using the DUSTY code (Ivezic et al. 1997), can be explained along with other known properties in terms of an M4 supergiant with OH, SiO and H₂O maser emission and a large mass loss of ~ 10^-4M(sun)yr^-1.

Citations

• User Manual for DUSTY

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