2023ApJS..268...30L


Query : 2023ApJS..268...30L

2023ApJS..268...30L - Astrophys. J., Suppl. Ser., 268, 30 (2023/September-0)

Investigating 16 Open Clusters in the Kepler/K2-Gaia DR3 Field. I. Membership, Binary Systems, and Rotation.

LONG L., BI S., ZHANG J., ZHANG X., ZHANG L., GE Z., LI T., CHEN X., LI Y., YE L., SUN T. and ZHOU J.

Abstract (from CDS):

Using data from Gaia Data Release 3 and Kepler/K2, we present a catalog of 16 open clusters with ages ranging from 4-4000 Myr that provides detailed information on membership, binary systems, and rotation. We assess the memberships in 5D phase space, and estimate the basic parameters of each cluster. Among the 20,160 members, there are 4381 stars identified as binary candidates and 49 stars identified as blue straggler stars. The fraction of binaries varies in each cluster, and the range is between 9% and 44%. We obtain the rotation periods of 5467 members, of which 4304 are determined in this work. To establish a benchmark for the rotation-age-color relation, we construct color-period diagrams. We find that the rotational features of binaries are similar to that of single stars, while the features for binaries are more scattered in the rotation period. Moreover, the morphology of the color-period relationship is already established for Upper Scorpius at the age of 19 Myr, and some stars of varying spectral types (i.e., FG, K, and M type) show different spin-down rates after the age of ∼110 Myr. By incorporating the effects of stalled spin-down into our analysis, we develop an empirical rotation-age-color relation, which is valid with ages between 700-4000 Myr and colors corresponding to a range of 0.5 < ${({G}_{\mathrm{BP}}-{G}_{\mathrm{RP}})}_{0}$ < 2.5 mag.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Star clusters - Open star clusters - Stellar rotation - Stellar ages - Binary stars

VizieR on-line data: <Available at CDS (J/ApJS/268/30): table2.dat table3.dat table5.dat>

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 22

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Number of rows : 22
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 NGC 774 LIN 01 59 34.7353817064 +14 00 29.546396964   13.97       ~ 85 1
2 V* NT Tau Er* 03 44 36.2806524050 +23 30 11.157085275   18.211 16.624   14.011 M3.0 68 0
3 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
4 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
5 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
6 NGC 1647 OpC 04 46 00.4 +19 05 06   6.82 6.4     ~ 189 0
7 NGC 1750 OpC 05 03 49.8 +23 40 41           ~ 76 1
8 NGC 1758 OpC 05 04 42.8 +23 48 43           ~ 61 0
9 NGC 1817 OpC 05 12 33.9 +16 41 34           ~ 210 0
10 NGC 2158 OpC 06 07 26.7 +24 05 53           ~ 317 0
11 NGC 2168 OpC 06 09 07.5 +24 20 15           ~ 604 0
12 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
13 NGC 2682 OpC 08 51 23.5 +11 48 54           ~ 2528 0
14 NAME Upper Sco Association As* 16 12 -23.4           ~ 1586 1
15 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1
16 NGC 6530 OpC 18 04 31 -24 21.5           ~ 443 0
17 NGC 6774 OpC 19 16 17.6 -16 20 45           ~ 258 0
18 NGC 6791 OpC 19 20 52.8 +37 46 40   10.52 9.5     ~ 1120 0
19 NGC 6811 OpC 19 37 21.8 +46 22 43   7.47 6.8     ~ 435 0
20 NGC 6819 OpC 19 41 18.3 +40 11 19   8.21 7.3     ~ 719 0
21 NGC 6866 OpC 20 03 57.7 +44 10 22   8.04 7.6     ~ 185 0
22 NGC 6971 GiG 20 49 23.7758083224 +05 59 44.125677636   14.8       ~ 29 0

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