2024AJ....168..205L

Query : 2024AJ....168..205L

2024AJ....168..205L - Astron. J., 168, 205 (2024/November-0)

WIYN Open Cluster Study. XC. Radial-velocity Measurements and Spectroscopic Binary Orbits in the Open Cluster NGC 2506.

LINCK E., MATHIEU R.D. and LATHAM D.W.

Abstract (from CDS):

NGC 2506 is a rich, intermediate-age (2.0 Gyr), metal-poor ([Fe/H] ∼ -0.2) open cluster. This work presents the results of 12,157 spectroscopic radial-velocity measurements of 2442 stars in the NGC 2506 field obtained over 41 yr, made as part of the WIYN Open Cluster Study. Radial-velocity measurements are complete for the population of proper-motion member stars brighter than a Gaia G magnitude of 15.5, in which 320 proper-motion and radial-velocity cluster members were identified. Within the observation limit of G < 16.5, 469 proper-motion and radial-velocity members were identified. This work reports on the characteristics of NGC 2506, including projected spatial distribution, radial-velocity dispersion, and virial mass. This work also presents orbital solutions for 49 binary members with periods between 1 and 7580 days. NGC 2506 has an incompleteness-corrected binary frequency for binaries with periods less than 104 days of 35% ± 5%. This work also discusses in detail the 14 blue stragglers stars of NGC 2506-finding at least 64% ± 21% to be in binaries, five yellow straggler stars, and several other stars of note.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Open star clusters - Spectroscopic binary stars - Radial velocity - Binary stars - Blue straggler stars - Yellow straggler stars - Orbit determination - Stellar rotation

VizieR on-line data: <Available at CDS (J/AJ/168/205): table2.dat table3.dat table6.dat table7.dat>

Status at CDS : Examining the need for a new acronym. // Associated data (images, light curves, etc...) being ingested in VizieR. // All or part of tables of objects will be ingested in SIMBAD with priority 1.

Simbad objects: 32

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Number of rows : 32
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 188 OpC 00 47 14.8 +85 14 42           ~ 990 0
2 NGC 752 OpC 01 56 53.7 +37 45 06           ~ 712 0
3 NGC 2168 OpC 06 09 07.5 +24 20 15           ~ 604 0
4 Gaia DR3 3038049862770680832 BS* 07 59 05.9931100080 -10 51 41.187066696           ~ 8 0
5 UCAC4 397-036301 * 07 59 41.9091130896 -10 43 26.391062424   14.084 13.194 12.952   ~ 7 0
6 Cl* NGC 2506 ADG V7 BS? 07 59 53.4314383752 -10 47 12.460484184     14.694     ~ 8 0
7 V* V845 Mon dS* 07 59 53.6374707360 -10 45 48.049416288   14.79 14.510     ~ 14 0
8 NGC 2506 3255 RB? 07 59 54.8623234128 -10 46 45.534870696   13.92 13.079     ~ 14 0
9 NGC 2506 3241 BS* 07 59 55.0232410152 -10 47 34.002660984   13.96 13.82     ~ 11 0
10 Gaia DR3 3038040035883079552 * 07 59 55.6718642789 -10 52 46.793642839           ~ 2 0
11 Gaia DR3 3038058590143955968 BS* 07 59 56.2234746216 -10 41 41.998281576           ~ 8 0
12 V* V846 Mon dS* 07 59 57.8587591752 -10 47 20.427925812   15.39 14.727     ~ 14 0
13 V* V847 Mon dS* 07 59 58.0995671928 -10 45 54.024951276   13.90 13.660     ~ 14 0
14 Gaia DR3 3038046358077125248 BS* 07 59 59.7696258456 -10 45 14.654852856           ~ 8 0
15 UCAC4 397-036564 EB* 08 00 00.5646610632 -10 45 38.077093728       13.732   ~ 8 0
16 NGC 2506 OpC 08 00 02.3 -10 46 22   8.28 7.6     ~ 313 0
17 Gaia DR3 3038043540578633856 * 08 00 02.6456909639 -10 50 07.718433045           ~ 2 0
18 Cl* NGC 2506 ADG V9 EB* 08 00 05.3753762856 -10 43 38.854255368     15.289     ~ 9 0
19 Cl* NGC 2506 ADG V5 EB* 08 00 10.3189341600 -10 43 17.120634564     17.430     ~ 4 0
20 NGC 2506 2364 RB? 08 00 12.2660288784 -10 48 45.218433168   13.93 13.040     ~ 15 0
21 Cl* NGC 2506 ADG V6 * 08 00 17.2300689696 -10 45 35.183334168     14.677     ~ 7 0
22 Cl* NGC 2506 ADG V26 EB* 08 00 26.4471968664 -10 48 38.581956612     13.058     ~ 3 0
23 Gaia DR3 3038042784664224000 BS* 08 00 27.1148842200 -10 45 59.378171832           ~ 8 0
24 Cl* NGC 2506 ADG V27 EB* 08 00 28.1530008960 -10 47 12.754797936     17.175     ~ 2 0
25 ATO J120.1187-10.8615 BS? 08 00 28.4961098688 -10 51 41.438637144           ~ 7 0
26 Cl* NGC 2506 ADG V8 * 08 00 34.5531225744 -10 46 49.388958408     13.80     ~ 3 0
27 NGC 2682 OpC 08 51 23.5 +11 48 54           ~ 2528 0
28 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
29 NGC 6791 OpC 19 20 52.8 +37 46 40   10.52 9.5     ~ 1120 0
30 NGC 6819 OpC 19 41 18.3 +40 11 19   8.21 7.3     ~ 719 0
31 NGC 7789 OpC 23 57 19.4 +56 43 28   7.68 6.7     ~ 575 0
32 Cl* NGC 2506 KC V4 * ~ ~   15.06 14.72     ~ 3 0

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