J/ApJS/259/19 LISC cat. of star clusters. I. Gal. disk with Gaia (Li+, 2022)
LISC catalog of star clusters.
I. Galactic disk clusters in Gaia EDR3.
Li Z., Deng Y., Chi H., Chen J., Liu X., Yan C., Chen W., Guo W., Xia T.
<Astrophys. J. Suppl. Ser., 259, 19 (2022)>
=2022ApJS..259...19L 2022ApJS..259...19L
ADC_Keywords: Clusters, open; Proper motions; Parallaxes, trigonometric
Keywords: Galaxy stellar content ; Open star clusters ; Globular star clusters
Abstract:
This work searches for the candidates of Galactic disk star clusters
in Gaia Early Data Release 3 (Gaia EDR3) and determines their basic
parameters from color-magnitude diagrams (CMDs). A friends-of-friends
method for membership determination and stellar population models
including binary stars (ASPS) and rotating stars are adopted. As a
result, 868 new star cluster candidates are found, besides 2729 known
ones. When checking the CMD of each candidate, 61 new candidates show
main sequences including a turnoff, which suggests that they are real
star clusters. The basic parameters, including distance modulus, color
excess, metallicity, age (or age range), primordial binary fraction,
and rotating star fraction, are determined carefully by fitting the
morphologies of CMDs of 61 newly identified star clusters and
594 known star clusters, which have relatively clear main sequences.
The CMDs are fitted in considerable detail to ensure the reliability
of property parameters of clusters. All final results are included in
a new star cluster catalog, which is named LI team's Star Cluster
(LISC).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 103 61 Parameters of 61 newly identified clusters with
relatively clear main sequences in their CMDs
newcl.dat 110 868 Basic information of 868 candidate clusters
which are not included in previous catalog
matchcl.dat 110 2729 *Basic information of 2729 clusters which have been
matched to other catalogs
cmdnew/* . 868 Observed CMD data of the 868 new clusters
cmdmatch/* . 2729 Observed CMD data of 2729 clusters
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Note on matchcl.dat: These clusters are the same cluster in the previous
catalogs, i.e., Liu & Pang (2019, J/ApJS/245/32),
Kharchenko+ (2013, J/A+A/558/A53), Cantat-Gaudin+ (2018, J/A+A/618/A93),
Cantat-Gaudin+ (2019, J/A+A/624/A126), Bica+ (2019, J/AJ/157/12),
Castro-Ginard+ (2019, J/A+A/627/A35), Castro-Ginard+ (2020, J/A+A/635/A45),
and Casado (2021RAA....21..117C 2021RAA....21..117C). See Section 3.2.
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See also:
B/ocl : Optically visible open clusters and Candidates (Dias+ 2002-2015)
I/350 : Gaia EDR3 (Gaia Collaboration, 2020)
J/A+AS/125/229 : A standard stellar library (Lejeune+ 1997)
J/A+AS/130/65 : A standard stellar library. II. (Lejeune+ 1998)
J/A+A/463/671 : Rotational velocities of A-type stars. III. (Royer+, 2007)
J/A+A/523/A48 : Gaia photometry (Jordi+, 2010)
J/A+A/558/A53 : MW global survey of star clusters. II. (Kharchenko+, 2013)
J/A+A/618/A93 : Gaia DR2 open clusters in the MW (Cantat-Gaudin+, 2018)
J/A+A/618/A59 : Gaia confirmed nearby open clusters (Castro-Ginard+, 2018)
J/AJ/157/12 : Star clusters, assoc. & candidates in the MW (Bica+, 2019)
J/A+A/623/A108 : Age of 269 GDR2 open clusters (Bossini+, 2019)
J/A+A/624/A126 : Open clusters in Perseus direction (Cantat-Gaudin+, 2019)
J/A+A/627/A35 : Open clusters in Galactic anti-centre (Castro-Ginard+, 2019)
J/ApJS/245/32 : Newly identified star clusters in Gaia DR2 (Liu+, 2019)
J/A+A/633/A99 : Gaia DR2 open clusters in the MW. II (Cantat-Gaudin+, 2020)
J/A+A/635/A45 : Open clusters in the Galactic disc (Castro-Ginard+, 2020)
J/MNRAS/496/2021 : New Galactic open clusters (Ferreira+, 2020)
J/ApJ/899/140 : Gaia Ultracompact Dwarf galaxy candidates (Voggel+, 2020)
J/A+A/640/A127 : Open cluster properties with Gaia and LAMOST (Zhong+, 2020)
J/MNRAS/504/356 : Updated parameters of 1743 open clusters (Dias+, 2021)
J/MNRAS/502/L90 : Gaia DR2 Galactic bulge new star clusters (Ferreira+, 2021)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [LISC]
5- 8 I04 --- LISC [192/3534] LISC identification number
10- 16 F7.3 deg RAdeg Right ascension (J2000)
18- 24 F7.3 deg DEdeg [-68.1/63.4] Declination (J2000)
26- 30 F5.3 mas plx [0.2/2.2] Parallax
32- 36 F5.3 mas e_plx [0.2/2.2] Parallax uncertainty
38- 43 F6.3 mas/yr pmRA [-8.9/7.5] Proper motion in RA (pmRA*cosDE)
45- 49 F5.3 mas/yr e_pmRA [0.003/1.6] pmRA uncertainty
51- 56 F6.3 mas/yr pmDE [-8.8/6.2] Proper motion in declination
58- 62 F5.3 mas/yr e_pmDE [0.007/1.1] pmDE uncertainty
64- 68 F5.3 rad rsc [0.04/1] Cluster radius, rsc
70- 74 F5.2 mag m-M [7.9/13] Distance modulus
76- 79 F4.2 mag E(V-I) [0.13/1.5] V-I color excess
81- 86 F6.4 --- Z [0.0001/0.03] Metallicity
88- 94 A7 Gyr Age Age, t or trange (1)
96- 99 F4.2 --- fbin [0.16/0.55] Initial binary fraction
101- 103 F3.1 --- frot [0/1] Primordial rotating star fraction
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Note (1): If trange is given instead of t for a cluster, its stellar
population type (SPT) is a composite stellar population (CSP).
Otherwise, it is a simple stellar population (SSP). See Section 4.
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Byte-by-byte Description of file: *cl.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [LISC]
5- 8 I04 --- LISC [0/3596] LISC identification number
12- 18 F7.3 deg RAdeg Right ascension (J2000)
23- 29 F7.3 deg DEdeg Declination (J2000)
36- 40 F5.3 mas plx [0.2/6.7] Parallax
46- 50 F5.3 mas e_plx [0.2/6.7] plx uncertainty
54- 60 F7.3 mas/yr pmRA [-24.7/16] Proper motion in RA
66- 70 F5.3 mas/yr e_pmRA [0/3] pmRA uncertainty
74- 80 F7.3 mas/yr pmDE [-26.7/23.4] Proper motion in DEC
86- 90 F5.3 mas/yr e_pmDE [0/3] pmDE uncertainty
96- 100 F5.3 rad rsc [0.01/1.6] Cluster radius, rsc
106- 110 I5 --- Ns [50/28910] Number of stars in cluster
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History:
From electronic version for Table 1
Other tables downloaded at:
http://zenodo.org/record/5705371#.YZPASbFdsrs
(from all_clusters file)
(End) Emmanuelle Perret [CDS] 13-Jun-2023