Results 121 to 130 of about 20,344 (216)

Unraveling Year-Long Radial Velocity Variations in Red Clump Region -- I: Comprehensive analysis of a K0 Giant star, 2 Draconis [PDF]

Udomlerd Srisuchinwong, Jianzhao Zhou, Huan-Yu Teng, Guang-Yao Xiao, Bun'ei Sato, Takuya Takarada, Masashi Omiya, Hiroki Harakawa, Eiji Kambe, Hideyuki Izumiura, Michitoshi Yoshida, Yoichi Itoh, Hiroyasu Ando, Eiichiro Kokubo, Marc Hon, Yujuan Liu, Fei Zhao, Wei Wang, Meng Zhai, Shaolan Bi, Gang Zhao   +20 more
openalex   +2 more sources

Comparison of the Chemical Compositions between the Bright and Faint Red Clumps for the Metal-poor and Metal-rich Populations in the Milky Way Bulge

The Astrophysical Journal
We examined the double red clump (RC) observed in the Galactic bulge, interpreted as a difference in distance (“X-shaped bulge scenario”) or in chemical composition (“multiple population scenario”).
Seungsoo Hong, Dongwook Lim, Young-Wook Lee   +2 more
doaj   +1 more source

Meridional Circulation. I. A Formation Channel for Lithium-rich and Super-lithium-rich Red Clump Stars

The Astrophysical Journal Letters
Current observations indicate that stars with higher rotation rates appear to maintain more surface lithium, and the majority of lithium-rich giants are indeed red clump stars.
Xue-Feng Li, Jian-Rong Shi, Yan Li, Hong-Liang Yan, Jing-Hua Zhang   +4 more
doaj   +1 more source

Measurements of streaming motions of the Galactic bar with Red Clump Giants

, 2002
T. Sumi, L. Eyer, P. R. Woźniak
openalex   +1 more source

Many Roads Lead to Lithium: Formation Pathways For Lithium-rich Red Giants

The Astrophysical Journal
Stellar models predict that lithium (Li) inside a star is destroyed during the first dredge-up phase, yet 1.2% of red giant stars are Li-rich. We aim to uncover possible origins of this population, by analyzing 1099 Li-rich giants ( A (Li) ≥ 1.5) in ...
Maryum Sayeed, Melissa K. Ness, Benjamin T. Montet, Matteo Cantiello, Andrew R. Casey, Sven Buder, Megan Bedell, Katelyn Breivik, Brian D. Metzger, Sarah L. Martell, Leah McGee-Gold   +10 more
doaj   +1 more source

Fine structure of the red giant clump from Hipparcos data, and distance determinations based on its mean magnitude [PDF]

, 1998
L. Girardi, M. A. T. Groenewegen, Achim Weiss, M. Salaris   +3 more
openalex   +1 more source

Detection of a Spatially Extended Stellar Population in M33: A Shallow Stellar Halo?

The Astrophysical Journal
We analyze the outer regions of M33, beyond 15 kpc in projected distance from its center, using Subaru/Hyper Suprime-Cam multicolor imaging. We identify red giant branch (RGB) stars and red clump (RC) stars using the surface-gravity-sensitive NB515 ...
Itsuki Ogami, Yutaka Komiyama, Masashi Chiba, Mikito Tanaka, Puragra Guhathakurta, Evan N. Kirby, Rosemary F. G. Wyse, Carrie Filion, Takanobu Kirihara, Miho N. Ishigaki, Kohei Hayashi   +10 more
doaj   +1 more source

APOKASC-3: The Third Joint Spectroscopic and Asteroseismic Catalog for Evolved Stars in the Kepler Fields

The Astrophysical Journal Supplement Series
In the third APOKASC catalog, we present data for the complete sample of 15,808 evolved stars with APOGEE spectroscopic parameters and Kepler asteroseismology.
Marc H. Pinsonneault, Joel C. Zinn, Jamie Tayar, Aldo Serenelli, Rafael A. García, Savita Mathur, Mathieu Vrard, Yvonne P. Elsworth, Benoit Mosser, Dennis Stello, Keaton J. Bell, Lisa Bugnet, Enrico Corsaro, Patrick Gaulme, Saskia Hekker, Marc Hon, Daniel Huber, Thomas Kallinger, Kaili Cao, Jennifer A. Johnson, Bastien Liagre, Rachel A. Patton, Ângela R. G. Santos, Sarbani Basu, Paul G. Beck, Timothy C. Beers, William J. Chaplin, Katia Cunha, Peter M. Frinchaboy, Léo Girardi, Diego Godoy-Rivera, Jon A. Holtzman, Henrik Jönsson, Szabolcs Mészáros, Claudia Reyes, Hans-Walter Rix, Matthew Shetrone, Verne V. Smith, Taylor Spoo, Keivan G. Stassun, Ji Wang   +40 more
doaj   +1 more source

History of two mass loss processes in VY CMa. [PDF]

Proc Int Astron Union, 2023
Quintana-Lacaci G, Velilla L, Fonfría JP, Cernicharo J, Castro-Carrizo A, Agúndez M, Decin L.   +6 more
europepmc   +1 more source

Distance estimates to five open clusters based on 2mass data of red clump giants [PDF]

, 2012
Li Chen, Xinhua Gao
openalex   +1 more source