2009A&A...502..559M


Query : 2009A&A...502..559M

2009A&A...502..559M - Astronomy and Astrophysics, volume 502, 559-567 (2009/8-1)

The stellar population of the star-forming region G61.48+0.09.

MARIN-FRANCH A., HERRERO A., LENORZER A., NAJARRO F., RAMIREZ S., FONT-RIBERA A. and FIGER D.

Abstract (from CDS):

We present the results of a near-infrared photometric and spectroscopic study of the star-forming region G61.48+0.09. The purpose of this study is to characterize the stellar content of the cluster and to determine its distance, extinction, age, and mass. The stellar population was studied by using color-magnitude diagrams to select twenty promising cluster members, for which follow-up spectroscopy was done. The observed spectra allowed a spectral classification of the stars. Two stars have emission lines, twelve are G-type stars, and six are late-O or early-B stars. The cluster's extinction varies from AKS=0.9 to AKS=2.6, (or AV∼8 to AV∼23). G61.48+0.09 is a star-forming region located at 2.5±0.4kpc. The cluster is younger than 10Myr and has a minimum stellar mass of 1.5±0.5x103M. However, the actual total mass of the cluster remains undetermined, as we cannot see its whole stellar content.

Abstract Copyright:

Journal keyword(s): stars: early-type - Galaxy: structure - infrared: stars - stars: Hertzprung-Russel (HR) and C-M diagrams - Galaxy: open clusters and associations: individual: G61.48+0.09

Nomenclature: Fig. 5, Table 2: [MHL2009] NN N=20 among (Nos 1-27).

Simbad objects: 35

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Number of rows : 35
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 2MASS J06090728+2150402 Y*O 06 09 07.284 +21 50 40.24           ~ 10 0
2 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3338 1
3 Cl Westerlund 1 OpC 16 47 04.00 -45 51 04.9           ~ 507 0
4 [DBS2003] 179 OpC 17 11 32.0 -39 10 38           ~ 37 0
5 NAME Arches Cluster Cl* 17 45 50.5 -28 49 28           ~ 685 0
6 NAME Quintuplet Cluster OpC 17 46 13.9 -28 49 48           ~ 490 0
7 RSGC 1 OpC 18 37 58 -06 53.0           ~ 98 0
8 HD 229700 * 18 50 58.4700342768 +10 18 09.062679960   10.50 10.33     A0II-III 17 0
9 HD 182761 * 19 25 22.3915776720 +20 16 18.216714108   6.278 6.287     A0V 58 0
10 UCAC3 231-209477 * 19 46 38.8355978112 +25 11 13.039870992       13.02   G6III 1 0
11 2MASS J19464038+2513214 * 19 46 40.382 +25 13 21.47           K0III 1 0
12 2MASS J19464073+2510578 * 19 46 40.731 +25 10 57.88           G8III 1 0
13 2MASS J19464155+2512205 * 19 46 41.550 +25 12 20.52           O9V 1 0
14 2MASS J19464279+2511071 * 19 46 42.7886369256 +25 11 07.159653276           K3III 1 0
15 2MASS J19464469+2512130 * 19 46 44.697 +25 12 13.08           M2III 1 0
16 2MASS J19464477+2512466 * 19 46 44.7726799248 +25 12 46.713980016           B3-B5V 1 0
17 2MASS J19464561+2513057 * 19 46 45.611 +25 13 05.80           M3III 1 0
18 LBN 061.50+00.29 HII 19 46 45.7 +25 12 56           ~ 64 0
19 GSC 02143-00957 * 19 46 46.9262510736 +25 12 13.265889048   15.14 13.36 13.05   G9III 3 0
20 2MASS J19464703+2512455 * 19 46 47.0333714016 +25 12 45.712099116           B3-B5V 1 0
21 2MASS J19464711+2512340 * 19 46 47.1157637760 +25 12 33.948728676           G4III 1 0
22 2MASS J19464727+2512598 * 19 46 47.272 +25 12 59.85           G3III 1 0
23 2MASS J19464731+2512456 * 19 46 47.3090401128 +25 12 45.597799260           B0V 5 0
24 SH 2-88 B HII 19 46 47.32920 +25 12 45.6230           ~ 155 2
25 2MASS J19464758+2512456 Y*O 19 46 47.585 +25 12 45.64           ~ 6 0
26 2MASS J19464784+2512305 Be* 19 46 47.843 +25 12 30.56           Be 1 0
27 [GGL95] G61.48 W ISM 19 46 48.23 +25 12 47.9           ~ 18 0
28 2MASS J19464899+2513288 * 19 46 48.9945122928 +25 13 28.910503416           B1V 1 0
29 UCAC2 40744446 * 19 46 49.0369704456 +25 13 00.707466612           G5III 1 0
30 [GGL95] G61.48 E HII 19 46 49.07 +25 12 47.0           ~ 17 0
31 2MASS J19465060+2513118 * 19 46 50.608 +25 13 11.86           F5III 1 0
32 2MASS J19465083+2511535 * 19 46 50.8300172832 +25 11 53.516999544           B2V 1 0
33 2MASS J19465120+2514113 * 19 46 51.209 +25 14 11.36           G7III 1 0
34 NAME Cyg Arm PoG 20 02 +40.0           ~ 155 0
35 Ass Cyg OB 2 As* 20 33.2 +41 19           ~ 871 0

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2022.05.27-09:15:13

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