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

C.D.S. - SIMBAD4 rel 1.7 - 2021.03.05CET21:47:18

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 A_KS=0.9 to A_KS=2.6, (or A_V∼8 to A_V∼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

Full paper

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Number of rows : 35

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2021	#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				~	3138	1
3	Cl Westerlund 1	OpC	16 47 04.00	-45 51 04.9				~	485	0
4	[DBS2003] 179	OpC	17 11 32.0	-39 10 38				~	35	0
5	NAME Arches Cluster	Cl*	17 45 50.5	-28 49 28				~	649	0
6	NAME Quintuplet Cluster	OpC	17 46 13.9	-28 49 48				~	462	0
7	RSGC 1	OpC	18 37 58	-06 53.0				~	92	0
8	HD 229700	*	18 50 58.4702798571	+10 18 09.070992816	10.50	10.33		A0II-III	15	0
9	HD 182761	*	19 25 22.3916545864	+20 16 18.213014023	6.278	6.287		A0V	57	0
10	UCAC3 231-209477	*	19 46 38.8355621837	+25 11 13.040775349			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 42.7872748367	+25 11 07.160235836				K3III	1	0
15	2MASS J19464469+2512130	*	19 46 44.697	+25 12 13.08				M2III	1	0
16	2MASS J19464477+2512466	*	19 46 44.7728517566	+25 12 46.714304266				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				~	62	0
19	GSC 02143-00957	*	19 46 46.9262543363	+25 12 13.268261395	15.14	13.36	13.05	G9III	3	0
20	2MASS J19464703+2512455	*	19 46 47.0353744902	+25 12 45.693168225				B3-B5V	1	0
21	2MASS J19464711+2512340	*	19 46 47.1163734483	+25 12 33.963321902				G4III	1	0
22	2MASS J19464727+2512598	*	19 46 47.272	+25 12 59.85				G3III	1	0
23	2MASS J19464731+2512456	*	19 46 47.311	+25 12 45.60				B0V	5	0
24	SH 2-88 B	HII	19 46 47.329	+25 12 45.62				~	153	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 48.9947133220	+25 13 28.901638319				B1V	1	0
29	UCAC2 40744446	*	19 46 49.0369151886	+25 13 00.706181335				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 50.8301268631	+25 11 53.510018107				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				~	144	0
35	Ass Cyg OB 2	As*	20 33.2	+41 19				~	819	0

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