Backflow in Post-Asymptotic Giant Branch Stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 We derive the conditions for a backflow toward the central star(s) of circumstellar material to occur during the post-asymptotic giant branch (AGB) phase. The backflowing material may be accreted by the post-AGB star and/or its companion, if such exists.
Soker, Noam
core +6 more sources
Turbulent Dynamo in Asymptotic Giant Branch Stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 Using recent results on the operation of turbulent dynamos, we show that a turbulent dynamo can amplify a large scale magnetic field in the envelopes of asymptotic giant branch (AGB) stars.
Andersen +32 more
core +6 more sources
Isotopic Enrichment of Planetary Systems from Asymptotic Giant Branch Stars [PDF]
The Astrophysical Journal Letters, 2023 Short-lived radioisotopes, in particular ^26 Al and ^60 Fe, are thought to contribute to the internal heating of the Earth, but are significantly more abundant in the solar system compared to the interstellar medium.
Richard J. Parker, Christina Schoettler
doaj +5 more sources
An HI Imaging Survey of Asymptotic Giant Branch Stars [PDF]
The Astronomical Journal, 2013 We present an imaging study of a sample of eight asymptotic giant branch (AGB) stars in the HI 21-cm line. Using observations from the Very Large Array, we have unambiguously detected HI emission associated with the extended circumstellar envelopes of ...
Bertre, T. Le +3 more
core +8 more sources
Asymptotic giant branch and super-asymptotic giant branch stars: modelling dust production at solar metallicity [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 We present dust yields for asymptotic giant branch (AGB) and super--asymptotic giant branch (SAGB) stars of solar metallicity. Stars with initial mass $1.5~M_{\odot} \leq M_{\rm ini} \leq 3~M_{\odot}$ reach the carbon star stage during the AGB phase and ...
F. Dell’Agli +7 more
semanticscholar +7 more sources
A New Catalog of Asymptotic Giant Branch Stars in Our Galaxy [PDF]
Astrophysical Journal Supplement Series, 2021 We present a new catalog of 11,209 O-rich asymptotic giant branch (AGB) stars and 7172 C-rich AGB stars in our Galaxy, identifying more AGB stars in the bulge component and considering more visual carbon stars.
K. Suh
semanticscholar +3 more sources
Evolution of asymptotic giant branch stars. I. Updated synthetic TP-AGB models and their basic calibration [PDF]
, 2007 We present new synthetic models of the TP-AGB evolution. They are computed for 7 values of initial metal content (Z from 0.0001 to 0.03) and for initial masses between 0.5 and 5.0 M , thus extending the low- and intermediate-mass tracks of Girardi et al.
P. Marigo +5 more
semanticscholar +3 more sources
The effects of thermohaline mixing on low-metallicity asymptotic giant branch stars [PDF]
, 2009 We examine the effects of thermohaline mixing on the composition of the envelopes of low-metallicity asymptotic giant branch (AGB) stars. We have evolved models of 1, 1.5 and 2 solar masses from the pre-main sequence to the end of the thermally pulsing ...
Abia +50 more
core +2 more sources
Stellar Models and Yields of Asymptotic Giant Branch Stars [PDF]
Publications Astronomical Society of Australia, 2007 We present stellar yields calculated from detailed models of low and intermediate-mass asymptotic giant branch (AGB) stars. We evolve models with a range of mass from 1 to 6Msun, and initial metallicities from solar to 1/200th of the solar metallicity ...
Amanda Karakas +31 more
core +3 more sources
Multiple Molecular Winds in Evolved Stars. I. A Survey of CO(2-1) and CO(3-2) Emission from 45 Nearby Asymptotic Giant Branch Stars [PDF]
, 1997 This paper describes observations of a new phenomenon in evolved mass-losing asymptotic giant branch (AGB) stars: the presence of two winds with different expansion velocities.
G. R. Knapp +3 more
semanticscholar +3 more sources