66 citations · 256 across the 18 of their papers we have counts for
7 papers · 1 filter
Asteroseismology sheds light on the origin of carbon-deficient red giants: likely merger products and linked to the Li-rich giants
Sunayana Maben, Simon W. Campbell, Yerra Bharat Kumar +2
Carbon-deficient red giants (CDGs) are a peculiar class of stars that have eluded explanation for decades. We aim to better characterise CDGs by using asteroseismology (Kepler, TES…
A large sample of newly-identified carbon-deficient red giants from APOGEE
Sunayana Maben, Yerra Bharat Kumar, Bacham E. Reddy +2
Based on the APOGEE survey we conducted a search for carbon-deficient red giants (CDGs). We found 103 new CDGs, increasing the number in the literature by more than a factor of 3.…
Preliminary Exploration of Areal Density of Angular Momentum for Spiral Galaxies
Lan Zhang, Feilu Wang, Xiangxiang Xue +4
The specific angular momenta () of stars, baryons as a whole and dark matter haloes contain clues of vital importance about how galaxies form and evolve. Using a sample of 70…
The Spectacular Tidal Tails of Globular Cluster M3 (NGC 5272)
Yong Yang, Jing-Kun Zhao, Xin-Zhe Tang +2
We provide a detailed analysis on tidal tails of the globular cluster M3 (NGC 5272). We first discover clear extra-tidal structures with slight S-shape near the cluster. This inspi…
Detection of multiple phase space overdensities of GSE stars by orbit integration
WenboWu, GangZhao, JiangChang +5
In N-body simulations, nearly radial mergers can form shell-like overdensities in the sky position and phase space () due to the combination of dynamical friction and tidal…
A Catalog of Distance Determinations for the LAMOST DR8 K Giants in the Galactic Halo
Lan Zhang, Xiang-Xiang Xue, Chengqun Yang +4
We present a catalog of distances for 19544 K giants drawn from LAMOST DR8. Most of them are located in the halo of the Milky Way up to ~120~kpc. There are 15% K giants without SDS…
The role of radial migration on tracing lithium evolution in the Galactic disk
Haopeng Zhang, Yuqin Chen, Gang Zhao +3
With the calculated guiding center radius and birth radius , we investigate the role of radial migration on the description of lithium evolution in the Gal…