activity
20222026
most citedHunting for Neighboring Open Clusters with Gaia DR3: 101 New Open Clusters within 500 pc

68 citations · 97 across the 11 of their papers we have counts for

collaborators

12 papers

astro-ph.GA2026

Discovery of an Unbound Flyby Companion of UBC 63: In the Immediate Aftermath of a Close Encounter

Samrat Biswas, Biman J Medhi, Sergio Messina +8

We re-investigate the open cluster UBC 63 using the Gaia DR3 data and show that, rather than being a single cluster as previously classified, it is a compelling candidate for a dou…

astro-ph.SR2026

Hot Degenerate Components in Blue Stragglers: A Multi-Wavelength SED Analysis of Nine Open Clusters with Swift/UVOT

Deniz Cennet Çınar, D. Bisht, Selçuk Bilir +2

We present a homogeneous multi-wavelength analysis of 35 blue straggler star (BSS) candidates in nine open clusters, combining Swift/UVOT near-ultraviolet data with Gaia DR3 astrom…

astro-ph.GA2025★ 2 cited

Stellar masses and mass ratios for Gaia open cluster members

Sagar Malhotra, Alfred Castro-Ginard, Friedrich Anders +7

Context: Unresolved binaries in star clusters can bias stellar and cluster mass estimates, making their proper treatment essential for studying cluster dynamics and evolution. Aims…

astro-ph.SR2025

A catalog of new blue stragglers in open clusters with Gaia DR3

Songmei Qin, Jing Zhong, Friedrich Anders +6

The high-precision {\it Gaia} data release 3 (DR3) enables the discovery of numerous open clusters in the Milky Way, providing an excellent opportunity to search for blue straggler…

astro-ph.GA2025★ 7 cited

Binary clusters in the Galactic disk I: Systematic identification and classification using Gaia DR3

Guimei Liu, Yu Zhang, Jing Zhong +3

Aims. We aim to identify and classify BCs using high-precision astrometric and kinematic data, and to investigate their physical properties, mutual gravitational interactions, and…

astro-ph.SR2025

Selected open cluster sample for validating atmospheric parameters: Application to Gaia and other surveys

Tong Tang, Songmei Qin, Jing Zhong +2

Reliable stellar atmospheric parameters are essential for probing stellar structure and evolution, and for stellar population studies. However, various deviations appear in compari…

astro-ph.GA2024

3D projection analysis: characterizing the morphological stability of nearby open clusters

Qingshun Hu, Songmei Qin, Yangping Luo +1

Context. The study of open cluster morphology is pivotal for exploring their formation and evolutionary processes. Aims. We manage to assess the morphological stability of 105 near…

astro-ph.GA2024★ 7 cited

Unveiling the Binary Nature of NGC 2323

Songmei Qin, Jing Zhong, Tong Tang +9

As a well-known open cluster, NGC 2323 (also called M50) has been widely investigated for over a hundred years and has always been considered a classical single cluster. In this wo…

astro-ph.GA2024★ 5 cited

Exploration of morphological coherence in open clusters with a "core-shell'' structure

Qingshun Hu, Yu Zhang, Songmei Qin +3

The study of their morphological coherence allows us to obtain a better understanding of the morphological evolution of open clusters. We employed the ellipsoid fitting method to d…

astro-ph.GA2024★ 8 cited

A fast-rotating blue straggler star in the tidal tail of the open cluster NGC 752

Chunyan Li, Jing Zhong, Songmei Qin +3

NGC 752 is a famous Galactic open cluster of intermediate age. In recent works, a very long and asymmetric tail was newly revealed. A blue straggler star (BSS) at the periphery of…

astro-ph.SR2023

The role of tidal interactions in the formation of slowly rotating early-type stars in young star clusters

Chenyu He, Chengyuan Li, Weijia Sun +9

The split main sequences found in the colour-magnitude diagrams of star clusters younger than ~600 Myr are suggested to be caused by the dichotomy of stellar rotation rates of uppe…

astro-ph.SR2022★ 68 cited

Hunting for Neighboring Open Clusters with Gaia DR3: 101 New Open Clusters within 500 pc

Songmei Qin, Jing Zhong, Tong Tang +1

We systematically searched for open clusters in the solar neighborhood within 500 pc using pyUPMASK and HDBSCAN clustering algorithms based on {\it Gaia} DR3. Taking into considera…