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Overview
Overview
This open cluster catalog is independently discovered clusters using the proper motions, positions and parallax data of Gaia DR2. It contains 655 open clusters and open cluster candidates within 1 kpc. 2 of them failed CMD validation and we cross matched 653 clusters. 446 clusters have similar locations with previously known clusters and 207 clusters are newly discovered. The main menu consists of Home, Catalog, and Figures. "Home" has the overall description. "Catalog" contains basic information about the clusters and "Figures" provides the figure of distribution of cluster stars in the proper motion space, spatial distribution, distance distribution and the color-magnitude diagram.
This open cluster catalog is independently discovered clusters using the proper motions, positions and parallax data of Gaia DR2. It contains 655 open clusters and open cluster candidates within 1 kpc. 2 of them failed CMD validation and we cross matched 653 clusters. 446 clusters have similar locations with previously known clusters and 207 clusters are newly discovered. The main menu consists of Home, Catalog, and Figures. "Home" has the overall description. "Catalog" contains basic information about the clusters and "Figures" provides the figure of distribution of cluster stars in the proper motion space, spatial distribution, distance distribution and the color-magnitude diagram.
Catalog Bibcode
Catalog Bibcode
SIM G., LEE S.H., ANN H.B., KIM S.
2019, 207 NEW OPEN STAR CLUSTERS WITHIN 1 KPC FROM GAIA DATA RELEASE 2, Journal of the Korean Astronomical Society, 52, 145
Gyuheon Sim, Sang Hyun Lee, Hong Bae Ann, Seunghyeon Kim
(Submitted on 16 Jul 2019 (v1), last revised 15 Oct 2019 (this version, v3))
We conducted a survey of open clusters within 1 kpc from the Sun using the astrometric and photometric data of the Gaia Data Release 2. We found 655 cluster candidates by visual inspection of the stellar distributions in proper motion space and spatial distributions in l-b space. All of the 655 cluster candidates have a well defined main-sequence except for two candidates if we consider that the main sequence of very young clusters is somewhat broad due to differential extinction. Cross-matching of our 653 open clusters with known open clusters in various catalogs resulted in 207 new open clusters. We present the physical properties of the newly discovered open clusters. The majority of the newly discovered open clusters are of young to intermediate age and have less than ~50 member stars.
DOI: 10.5303/JKAS.2019.52.5.145
Subjects: Solar and Stellar Astrophysics (astro-ph.SR); Astrophysics of Galaxies (astro-ph.GA)
Cite as: arXiv:1907.06872 [astro-ph.SR]
(or arXiv:1907.06872v3 [astro-ph.SR] for this version)
Bulletin
Bulletin
The UPK database was last updated on 1 October 2019.
Acknowledgements
Acknowledgements
- We also thank the Ulsan Science High School (USHS) for financial support. Gyuheon Sim would like to thank USHS science and mathematics teachers for helping theoretical background, especially Park, Joo hyun.
- This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.
Contact
Contact
Gyuheon Sim: 2017000049@ushs.hs.kr (If you need more precise and extended catalog or member data, contact here.)
Sang Hyun Lee: shlee@kasi.re.kr
Hong Hae Ann: hbann@pusan.ac.kr
Seunghyun Kim: 2017000016@ushs.hs.kr
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