An AGB Star with a Thick Circumstellar Shell

Abstract

The Asymptotic Giant Branch (AGB) is the terminal phase of red giant evolution with timescales of millions of years and a total mass lost from the star that is a significant fraction of the initial mass. Investigation of one of these stars, WISEA J173046.10-344455.5, a kpc in the direction of the center of the Galaxy, reveals a cool oxygen rich star with a dust shell of black-body temperature 1305 K.

6 pages, 5 figures, accepted for publication in PASP

References in corpus (19)

• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• The Gaia mission
• The Dust Content and Opacity of Actively Star-Forming Galaxies
• Estimating distances from parallaxes IV: Distances to 1.33 billion stars in Gaia Data Release 2
• The Infrared Telescope Facility (IRTF) Spectral Library: Cool Stars
• Global survey of star clusters in the Milky Way II. The catalogue of basic parameters
• Spitzer Survey of the Large Magellanic Cloud, Surveying the Agents of a Galaxy's Evolution (SAGE) I: Overview and Initial Results
• SkyMapper Southern Survey: First Data Release (DR1)
• Evidence for a systematic offset of -80 micro-arcseconds in the Gaia DR2 parallaxes
• The Wide Field Spectrograph (WiFeS)
• User Manual for DUSTY
• PyWiFeS: A Rapid Data Reduction Pipeline for the Wide Field Spectrograph (WiFeS)
• The SAGE-Spec Spitzer Legacy program: The life-cycle of dust and gas in the Large Magellanic Cloud. Point source classification I
• Gaia Data Release 2: Observations of solar system objects
• The pulsation modes, masses and evolution of luminous red giants
• X-ray Outburst in Mira A
• Long period variables in 47 Tuc: direct evidence for lost mass
• The 2010 nova outburst of the symbiotic Mira V407 Cyg
• Detection of an asymmetry in the envelope of the carbon Mira R Fornacis using VLTI/MIDI