Results 11 to 20 of about 1,482,462 (172)

Studying Asymptotic Giant Branch Stars in the JWST Era

open access: yesUniverse, 2020
We explore the potential offered by the incoming launch of the James Webb Space Telescope, to study the stars evolving through the asymptotic giant branch (AGB) phase. To this aim we compare data of AGB stars in the Large Magellanic Cloud, taken with the
Paolo Ventura   +3 more
doaj   +2 more sources

Submillimetre photometry of post-asymptotic giant branch stars [PDF]

open access: yes, 2002
Stars in the post-asymptotic giant branch (post-AGB) phase of evolution are surrounded by detached circumstellar envelopes containing dust which emits thermally in the mid- and far-infrared.
Yates, J.A., Bains, I., Gledhill, T.
core   +3 more sources

Winds of Cool Giant Stars: Models and Observations

open access: yes, 2005
This review describes recent advances in models and observations of cool winds of asymptotic giant branch stars, focusing on infrared spectroscopy and interferometric methods, in combination with self-consistent time-dependent models of atmospheres and ...
Höfner, Susanne,
core   +6 more sources

Fluorine Abundances in Galactic Asymptotic Giant Branch Stars

open access: yes, 2010
An analysis of the fluorine abundance in Galactic asymptotic giant branch (AGB) carbon stars (24 N-type, 5 SC-type, and 5 J-type) is presented. This study uses the state-of-the-art carbon-rich atmosphere models and improved atomic and molecular line ...
de Laverny P.   +25 more
core   +3 more sources

Evolution of the Outflow in the Water Fountain Source IRAS 18043–2116

open access: yesThe Astrophysical Journal, 2023
We present the spectral and spatial evolution of H _2 O masers associated with the water fountain source IRAS 18043−2116, found in observations with the Nobeyama 45 m Telescope and the Australia Telescope Compact Array. We have found new highest-velocity
L. Uscanga   +7 more
doaj   +1 more source

The Search for Binaries in Post-Asymptotic Giant Branch Stars: Do Binary Companions Shape the Nebulae? [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2012
Binary companions are often invoked to explain the axial and point symmetry seen in the majority of planetary nebulae and proto-planetary nebulae (PPNs).
Bruce J. Hrivnak
doaj   +1 more source

Asymptotic giant branch-stars in the GLIMPSE database

open access: yesAstronomy & Astrophysics
Aims. In the preceding paper (paper I) we showed that the GLIMPSE database contains millions of asymptotic giant branch (AGB) stars. Their nature follows from two properties: the objects have the same color after correction for interstellar extinction ...
Habing H. J., Habing M. A.
doaj   +3 more sources

Planetary Engulfment Prognosis within the ρ CrB System

open access: yesThe Astrophysical Journal, 2023
Exoplanets have been detected around stars at various stages of their lives, ranging from young stars emerging from formation to the latter stages of evolution, including white dwarfs and neutron stars.
Stephen R. Kane
doaj   +1 more source

Properties of the Variation of the Infrared Emission of OH/IR Stars III. The M Band Light Curves [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2010
To study properties of the pulsation in the infrared emission for long period variables, we have collected and analyzed the infrared observational data at M band for 12 OH/IR stars.
Young-Joo Kwon, Kyung-Won Suh
doaj   +1 more source

Pulsating stars in the VMC survey

open access: yesEPJ Web of Conferences, 2017
The VISTA survey of the Magellanic Clouds system (VMC) began observations in 2009 and since then, it has collected multi-epoch data at Ks and in addition multi-band data in Y and J for a wide range of stellar populations across the Magellanic system ...
Cioni Maria-Rosa L.   +6 more
doaj   +1 more source

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