6 papers
Missing pairs in open cluster catalogs
Qingshun Hu, Yufei Cai, Caroline Soubiran +4
Open clusters (OCs) in our Galaxy can be found in pairs, possibly forming physical binaries, or in groups. These objects offer unique insights into the process of star formation an…
Precise parameter determination of the open cluster NGC 1647 via asteroseismology of p-mode pulsators
Mingfeng Qin, Jian-Ning Fu, Weikai Zong +4
Asteroseismology of member pulsators provides a robust physical constraint on cluster parameters by linking internal stellar structures to the global properties of the host cluster…
The morphological stability of open clusters: a new 2D perspective
Yuting Li, Qingshun Hu, Yufei Cai +3
Open clusters (OCs) usually evolve gradually as the number of their members changes, which can be manifested in their morphological characteristics. We aim to investigate the morph…
Phase II of the LAMOST-Kepler/K2 Survey. II. Time Domain of Medium-resolution Spectroscopic Observations from 2018 to 2023
Mingfeng Qin, Jian-Ning Fu, Weikai Zong +11
The LAMOST-Kepler/K2 Medium-Resolution Spectroscopic Survey (LK-MRS) conducted time-domain medium-resolution spectroscopic observations of 20 LAMOST plates in the Kepler and K2 fie…
Precise Asteroseismology of the High-amplitude Delta Scuti Star EH Librae, an AE UMa Analogue in the Hertzsprung Gap
Xiran Xie, Jianning Fu, Gang Meng +7
A subclass of intermediate mass variables Delta Scuti stars, known as High-amplitude Delta Scuti (HADS) stars, exhibits pronounced radial pulsations with high amplitudes. The groun…
An In-depth Investigation of the Primordial Cluster Pair ASCC 19 and ASCC 21
Qingshun Hu, Yuting Li, Mingfeng Qin +4
Utilizing \texttt{Gaia} data from the literature, we report a new young (8.9~Myr) cluster pair, ASCC~19 and ASCC~21, located near the Orion star-forming complex. The clusters…