Clumpy dust clouds and extended atmosphere of the AGB star W Hydrae revealed with VLT/SPHERE-ZIMPOL and VLTI/AMBER

2016/03/11 by K. Ohnaka, Keiichi Ohnaka, Gerd Weigelt +3
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Asymptotic giant branch #Atmosphere (unit) #Carbon star #Circumstellar dust #Cosmic dust #Giant star #Molecular cloud #Stars #Stellar atmosphere #Stellar, planetary, and galactic studies #astro-ph.SR

paper · pdf · doi:10.1051/0004-6361/201628229

published as A&A 589, A91 (2016) · 12 pages, 9 figures, accepted for publication in Astronomy and Astrophysics, short discussion of non-equilibrium gas-dust chemistry models added

arxiv created 2016/03/11 · openalex publication_date 2016/03/14 · arxiv updated 2016/04/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Context. Dust formation is thought to play an important role in the mass loss from stars at the asymptotic giant branch (AGB); however, where and how dust forms is still open to debate.

Citations

• Multi-wavelength Diameters of Nearby Miras and Semiregulars
• Too little radiation pressure on dust in the winds of oxygen-rich AGB stars
• The wind of the M-type AGB star RT Virginis probed by VLTI/MIDI
• High spectral resolution imaging of the dynamical atmosphere of the red supergiant Antares in the CO first overtone lines with VLTI/AMBER
• The mid-infrared diameter of W Hydrae