Results 81 to 90 of about 1,482,462 (172)

Infrared Properties Of AGB Stars: from Existing Databases to Antarctic Surveys

, 2007
We present here a study of the Infrared properties of Asymptotic Giant Branch stars (hereafter AGB) based on existing databases, mainly from space-borne experiments. Preliminary results about C and S stars are discussed, focusing on the topics for which
M. Busso, R. Guandalini, Guandalini R., Busso M.   +3 more
core   +1 more source

Extending the cosmic distance ladder two orders of magnitude with strongly lensed Cepheids, carbon AGB stars, and RGB stars

Astronomy & Astrophysics
Gravitational lensing by galaxy clusters can create extreme magnification (μ > 1000) near the cluster caustics, thereby enabling detections of individual luminous stars in high-redshift background galaxies.
Diego J. M., Willner S. P., Palencia J. M., Windhorst R. A.   +3 more
doaj   +1 more source

Spitzer observations of large amplitude variables in the LMC and IC 1613

EPJ Web of Conferences, 2017
The 3.6 and 4.5 ìm characteristics of asymptotic giant branch variables in the LMC and IC 1613 are discussed. For C-rich Mira variables there is a very clear periodluminosity-colour relation, where the [3.6] .
Whitelock Patricia A., Kasliwal Mansi, Boyer Martha   +2 more
doaj   +1 more source

Classification study of WISE infrared sources: identification of candidate asymptotic giant branch stars

, 2013
In the Wide-field Infrared Survey Explorer (WISE) all-sky source catalog there are 76 million mid-infrared point sources that were detected in the first three WISE bands and have association with only one 2MASS near-IR source within 3 ''.
Tu, Xun, Wang, Zhong-Xiang
core  

Publication Only

HemaSphere, Volume 10, Issue S1, June 2026.
wiley   +1 more source

Abundance of Ammonia in Carbon-rich Asymptotic Giant Branch Stars as Observed by Herschel/HIFI—A Rotational Diagram Approach

The Astrophysical Journal
The Herschel Heterodyne Instrument for the Far-Infrared (HIFI) obtained high-resolution spectroscopic observations of numerous Galactic and extragalactic sources, including 12 carbon-rich (C-rich) Galactic asymptotic giant branch (AGB) stars.
Ryszard Szczerba, Xiaohu Li, Juan Tuo, Mirosław R. Schmidt, Tom J. Millar, Gleb Fedoseev, Jixing Ge, Wasim Iqbal, Yong Zhang, Chuanlu Yang, Tao Yang, Xuan Fang, Cheng Zhu, Yihan Wu, Rong Ma, Xia Zhang, Xiaomin Song, Fangfang Li, Yuxuan Sun, Qixin Wu, Wenzhong Cai, Qing-Guo Sun, Yanan Feng, Jianchao Yang   +23 more
doaj   +1 more source

Asymptotic giant branch stars: from understanding to predictions

, 2004
Two examples of stellar predictions from models of asymptotic giant branch (AGB) stars are presented to illustrate the difficulties associated with astronuclear studies.
N. Mowlavi
core   +1 more source

Phosphorus-bearing molecules PO and PN at the edge of the Galaxy. [PDF]

Nature, 2023
Koelemay LA, Gold KR, Ziurys LM.
europepmc   +1 more source

I-band Asymptotic Giant Branch (IAGB) Stars. II. A First Estimate of Their Precision and a Differential Zero Point

The Astronomical Journal
Hubble Space Telescope observations of 92 galaxies that have a strong showing of I -band asymptotic giant branch (IAGB) stars in their color–magnitude diagrams (CMDs) are used to measure the relative offset between the mean apparent I -band magnitudes of
Wendy L. Freedman, Barry F. Madore, Taylor Hoyt, In Sung Jang, Abigail J. Lee, Kayla A. Owens   +5 more
doaj   +1 more source

Shaping the horizontal branch: The role of envelope mass in the evolution of stripped core-helium-burning stars

Astronomy & Astrophysics
The location of a star along the horizontal branch (HB) during core-helium burning is primarily determined by the amount of mass lost by its progenitor.
Arancibia Rojas E., Zorotovic M., Vučković M., Bobrick A., Durán-Reyes A.   +4 more
doaj   +1 more source