Results 71 to 80 of about 1,482,462 (172)

Systematic Search for Water Fountain Candidates Using the Databases of Circumstellar Maser Sources

The Astrophysical Journal Supplement Series
Water fountains (WFs) are thought to be objects in the morphological evolution of the circumstellar envelopes of low- and intermediate-mass evolved stars, transitioning from spherically symmetric to asymmetric shapes.
Haichen Fan, Jun-ichi Nakashima, D. Engels, Yong Zhang, Jian-Jie Qiu, Huan-Xue Feng, Jia-Yong Xie, Hiroshi Imai, Chih-Hao Hsia   +8 more
doaj   +1 more source

Spitzer observations of acetylene bands in carbon-rich asymptotic giant branch stars in the Large Magellanic Cloud

, 2015
We investigate the molecular bands in carbon-rich asymptotic giant branch (AGB) stars in the Large Magellanic Cloud (LMC), using the Infrared Spectrograph (IRS) onboard the Spitzer Space Telescope (SST) over the 5-38 μm range.
Cioni, M-R L, Menzies, J W, Waters, L B F M, Feast, M.W., Zijlstra, Albert A, Sloan, G C, Lagadec, Eric, van Loon, Jacco Th, Wood, Peter R, Blommaert, J A D L, Loup, C, Groenewegen, M A T, Whitelock, Patricia A, Matsuura, Mikako, Hony, S, Habing, H.J.   +15 more
core   +1 more source

The Contribution of Asymptotic Giant Branch Stars to the Infrared Luminosities of Galaxies [PDF]

, 2011
Using resolved stellar photometry in Hubble Space Telescope WFC3 images of 22 nearby galaxies, we measure the fraction of near-infrared (NIR) luminosity produced by short-lived asymptotic giant branch (AGB) stars.
Melbourne, J., Girardi, L., Dalcanton, J., Williams, B., MARIGO, PAOLA   +4 more
core  

Evolution and nucleosynthesis of asymptotic giant branch stellar models of low metallicity [PDF]

, 2014
We present stellar evolutionary tracks and nucleosynthetic predictions for a grid of stellar models of low- and intermediate-mass asymptotic giant branch (AGB) stars at Z = 0.001 ([Fe/H] =-1.2).
Lugaro, Maria, Karakas, Amanda, Yong, David, Fishlock, Cherie, Fishlock, Ch. K., Yong, D., Karakas, A. I.   +6 more
core   +1 more source

Integrated Mass Loss for Very Metal-poor Stars: Asterosesimic Red Giant Masses of K2 Globular Cluster NGC 5897

The Astrophysical Journal Letters
Mass loss in low-mass stars during the red giant branch (RGB) and early asymptotic giant branch (EAGB) phases plays a key role in shaping stellar evolution, yet its dependence on stellar parameters such as metallicity remains poorly constrained, with ...
Csilla Kalup, László Molnár, Madeline Howell, Attila Bódi, András Pál   +4 more
doaj   +1 more source

Sliding along the Eddington Limit—Heavy-Weight Central Stars of Planetary Nebulae

Galaxies, 2018
Due to thermal pulses, asymptotic giant branch (AGB) stars experience periods of convective mixing that provide ideal conditions for slow neutron-capture nucleosynthesis.
Lisa Löbling
doaj   +1 more source

Velocity Observations of Multiple-Mode Asymptotic Giant Branch Variable Stars [PDF]

, 2002
Numerous infrared spectroscopic observations were obtained of nine asymptotic giant branch (AGB) field M giants that have multiple periods of light variability.
Lebzelter, Thomas, Hinkle, Kenneth H., Fekel, Francis C., Joyce, Richard R.   +3 more
core   +1 more source

THE MATHEMATICAL MODEL OF THE PHOTOMETRIC VARIABILITY AND CLASSIFICATION OF SEMIREGULAR PULSATING ASYMPTOTIC GIANTS BRANCH STARS

Odessa Astronomical Publications, 2012
The modern review of the stars which are located at the position of asymptotic giant branch at the HRdiagram is presented. The most interesting problems connected to these objects are noted, as well as attention is paid to classification and to the ...
L. S. Kudashkina
doaj   +1 more source

88th Annual Meeting of the Meteoritical Society 2026: Abstracts

Meteoritics &Planetary Science, Volume 61, Issue S1, Page S48-S551, August 2026.
wiley   +1 more source

Multiple populations along the asymptotic giant branch of the globular cluster M 4 [PDF]

, 2016
Nearly all Galactic globular clusters host stars that display characteristic abundance anti-correlations, like the O-rich/Na-poor pattern typical of field halo stars, together with O-poor/Na-rich additional components.
Savino, A, Stetson, PB, Salaris, M., Stetson, P. B., Cassisi, S., Cassisi, S, CASSISI, Santi, Lardo, C, Lardo, C., Salaris, M, Donati, P, Savino, A., Donati, P., Savino A., Lardo C., Stetson P. B., Salaris M., Cassisi S., Donati P.   +18 more
core   +1 more source