2011ApJ...733L...1P

Query : 2011ApJ...733L...1P

2011ApJ...733L...1P - Astrophys. J., 733, L1 (2011/May-3)

A new look at the old star cluster NGC 6791.

PLATAIS I., CUDWORTH K.M., KOZHURINA-PLATAIS V., McLAUGHLIN D.E., MEIBOM S. and VEILLET C.

Abstract (from CDS):

We present comprehensive cluster membership and g'r' photometry of the prototypical old, metal-rich Galactic star cluster NGC 6791. The proper-motion catalog contains 58,901 objects down to g'∼ 24, limited to a circular area of radius 30'. The highest precision of the proper motions is 0.08 mas/yr. Our proper motions confirm cluster membership of all main and also some rare constituents of NGC 6791. The total number of probable cluster members down to g' = 22 (MV∼ +8) is ∼4800, corresponding to Mtot~ 5000 M ☉. New findings include an extended horizontal branch in this cluster. The angular radius of NGC 6791 is at least 15' (the effective radius is Rh ≃ 4'.4 while the tidal radius is rt≃ 23'). The luminosity function of the cluster peaks at M_{g^′}∼+4.5 and then steadily declines toward fainter magnitudes. Our data provide evidence that differential reddening may not be ignored in NGC 6791.

Abstract Copyright: ∼

Journal keyword(s): astrometry - open clusters and associations: general - open clusters and associations: individual: NGC 6791 - proper motions

Nomenclature: Table 1: [PCK2011] NNNNN N=14 among (Nos 41698-93625).

Simbad objects: 31

goto Full paper

goto View the references in ADS

Number of rows : 31
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 2682 OpC 08 51 23.5 +11 48 54           ~ 2528 0
2 Cl* NGC 6791 SBG 83 * 19 20 10.62 +37 51 11.6     18.30   16.80 ~ 3 0
3 NGC 6791 440 * 19 20 17.4449242728 +37 41 23.934819480           ~ 2 0
4 Cl* NGC 6791 KR V59 EB* 19 20 21.4862218392 +37 48 21.599087328     17.781 17.221   ~ 12 0
5 NGC 6791 2101 * 19 20 31.3987991520 +37 38 09.663302004           ~ 2 0
6 2MASS J19203303+3755558 RG* 19 20 33.0281641680 +37 55 55.937233848           ~ 17 0
7 NGC 6791 2746 BS* 19 20 34.9763743224 +37 45 52.349385492     15.03   14.43 F5 12 0
8 V* V516 Lyr CV* 19 20 35.7418540680 +37 44 52.043756748 19.92 21.07       ~ 35 0
9 Cl* NGC 6791 SBG 3472 * 19 20 38.27 +37 44 41.4           ~ 2 0
10 V* V598 Lyr BY* 19 20 38.8882974240 +37 49 04.308135780   19.172 17.949 17.279 16.64 ~ 17 0
11 Cl* NGC 6791 KU B1 BS* 19 20 40.3133227440 +37 53 50.749607364 16.55 16.98 16.963     B9: 15 1
12 Cl* NGC 6791 SBG 5361 * 19 20 44.92 +37 46 40.2 19.46 20.33 20.564     ~ 5 0
13 NGC 6791 2045 HB* 19 20 46.00272 +37 47 54.9024   15.387 14.210 14.071   ~ 12 0
14 SDSS J192049.82+373637.4 CV* 19 20 49.8239948904 +37 36 37.448770104           DA 6 0
15 NGC 6791 1120 RG* 19 20 51.3732096072 +37 46 30.548365752   16.26 14.21   12.93 ~ 16 0
16 NGC 6791 OpC 19 20 52.8 +37 46 40   10.52 9.5     ~ 1120 0
17 V* V568 Lyr EB* 19 20 57.3346763352 +37 45 36.739962972   18.295   16.823   ~ 46 0
18 NGC 6791 2017 BS* 19 20 59.9456496912 +37 46 03.288544752   15.46 15.04     A7V 23 0
19 Cl* NGC 6791 SBG 11136 * 19 21 01.91 +37 50 46.1 15.42 16.20 16.094     ~ 7 1
20 NGC 6791 3022 * 19 21 02.5477331400 +37 43 59.519638128   15.62 14.91     ~ 6 0
21 Cl* NGC 6791 SBG 12158 * 19 21 05.6408791248 +37 51 52.544255832   13.202 12.011 11.638   ~ 9 0
22 V* V707 Lyr LP* 19 21 07.1949076776 +37 44 34.735895052   15.924 14.649     ~ 10 0
23 V* V523 Lyr CV* 19 21 07.3950071424 +37 47 56.271903940 17.70         ~ 36 0
24 NGC 6791 3033 RG* 19 21 08.0704161851 +37 47 49.441898699   15.28 13.95     ~ 13 0
25 Cl* NGC 6791 SBG 13753 * 19 21 12.39 +37 37 49.5     18.20   16.90 ~ 2 0
26 Cl* NGC 6791 SBG 13881 * 19 21 13.18 +37 44 14.8           ~ 1 0
27 NGC 6791 14140 RG* 19 21 14.6997327792 +37 53 07.547099640   15.898 14.747 14.588   ~ 5 0
28 Cl* NGC 6791 SBG 15561 EB* 19 21 25.2144335208 +37 45 49.844364048   19.004 17.669   16.217 ~ 9 0
29 [TGM2014] 8031 ** 19 21 42.3151317696 +37 58 05.531844252           ~ 2 0
30 Cl* NGC 6791 KU B9 HS? 19 21 45.0086484528 +37 44 02.475592368   18.023 18.176     ~ 9 0
31 [PCK2011] 58783 HB? 19 21 48.2666 +37 43 57.639           ~ 1 0

To bookmark this query, right click on this link: simbad:objects in 2011ApJ...733L...1P and select 'bookmark this link' or equivalent in the popup menu