Results 111 to 120 of about 20,344 (216)

Two Long-period Giant Planets around Two Giant Stars: HD 112570 and HD 154391

The Astronomical Journal
We present the discoveries of two giant plants orbiting the red-giant-branch star HD 112570 and the red-clump star HD 154391, based on the radial-velocity (RV) measurements from the Xinglong station and Okayama Astrophysical Observatory.
Guang-Yao Xiao, Huan-Yu Teng, Jianzhao Zhou, Bun’ei Sato, Yu-Juan Liu, Shaolan Bi, Takuya Takarada, Masayuki Kuzuhara, Marc Hon, Liang Wang, Masashi Omiya, Hiroki Harakawa, Fei Zhao, Gang Zhao, Eiji Kambe, Hideyuki Izumiura, Hiroyasu Ando, Kunio Noguchi, Wei Wang, Meng Zhai, Nan Song, Chengqun Yang, Tanda Li, Timothy D. Brandt, Michitoshi Yoshida, Yoichi Itoh, Eiichiro Kokubo   +26 more
doaj   +1 more source

Investigating Gaia EDR3 parallax systematics using asteroseismology of Cool Giant Stars observed by Kepler, K2, and TESS II. Deciphering Gaia parallax systematics using red clump stars [PDF]

, 2023
S. Khan, Richard I. Anderson, A. Miglio, B. Mosser, Y. Elsworth   +4 more
openalex   +1 more source

Asteroseismology of 687 TESS Red Giants: Individual Frequencies and Asymptotic Parameters

The Astrophysical Journal Supplement Series
The individual modes and asymptotic parameters are important characteristics of stellar oscillation. Using TESS 2 minute cadence data from Sectors 1 to 75, we perform asteroseismic analysis of 687 red giants, and provide their oscillation mode parameters.
Jianzhao Zhou, Shaolan Bi, Yaguang Li, Jie Yu, Tanda Li, Xianfei Zhang, Lifei Ye, Mengjie Li, Liu Long, Tiancheng Sun, Yuqin Chen   +10 more
doaj   +1 more source

The morphology of the sub-giant branch and red clump reveal no sign of age spreads in intermediate-age clusters [PDF]

, 2015
N. Bastian, Florian Niederhofer
openalex   +1 more source

Decoding the Future of Exoplanets: Asteroseismic Confirmation of Subgiant and Red Giant Hosts

The Astrophysical Journal
Asteroseismology has emerged as a powerful tool to unravel the intricate relationships between evolved stars and their planetary systems. In this study, we leverage this technique to investigate the evolutionary stages of five exoplanet host stars, each ...
Wen-Xu Lin, Sheng-Bang Qian, Li-Ying Zhu, Wen-Ping Liao, Fu-Xing Li, Xiang-Dong Shi, Lin-Jia Li, Er-Gang Zhao   +7 more
doaj   +1 more source

The Structure, Populations, and Kinematics of the Milky Way Central and Inner Bulge with OGLE, APOGEE, and Gaia Data

The Astrophysical Journal
We present an analysis of the structure, kinematics, and chemo-dynamical properties of the Milky Way bulge using RR Lyrae stars from Optical Gravitational Lensing Experiment (OGLE), and giant stars from APOGEE and Gaia that have distances placing them in
Xiao Han, Hai-Feng Wang, Giovanni Carraro, Martín López-Corredoira, Yuan-Sen Ting, Yang-Ping Luo, Guan-Yu Wang, (MWLUDPSG Collaboration)   +7 more
doaj   +1 more source

The complete chloroplast genome of Fargesia angustissima T. P. Yi: a panda dietary bamboo species. [PDF]

Mitochondrial DNA B Resour, 2023
Wu H, Li X, Xu X, Zhang Y, Su T.
europepmc   +1 more source

The Spectroscopic Disambiguation of the Red Clump from the Red Giant Branch

This thesis delves into the spectro-seismic connection observed in red giant stars, affirming that the necessary asteroseismic information for effectively discerning standard-candle red clump stars (RC) from non-standard-candle red giant branch (RGB) stars is embedded within their spectra.
openaire   +2 more sources

Unraveling the Kinematic and Morphological Evolution of the Small Magellanic Cloud

The Astrophysical Journal
We model the kinematics of the Small Magellanic Cloud (SMC) by analyzing the proper motions (PMs) from Gaia DR3 of nine different stellar populations, including young main-sequence (MS) stars (
S. R. Dhanush, A. Subramaniam, S. Subramanian   +2 more
doaj   +1 more source

Parameters of the local warp of the stellar-gaseous galactic disk from the kinematics of Tycho-2 nearby red giant clump stars [PDF]

, 2010
В. В. Бобылев
openalex   +1 more source