2023ApJS..267...46I

Query : 2023ApJS..267...46I

2023ApJS..267...46I - Astrophys. J., Suppl. Ser., 267, 46 (2023/August-0)

Investigating the Impact of Metallicity on Star Formation in the Outer Galaxy. I. VLT/KMOS Survey of Young Stellar Objects in Canis Major.

ITRICH D., KARSKA A., SEWILO M., KRISTENSEN L.E., HERCZEG G.J., RAMSAY S., FISCHER W.J., TABONE B., ROCHA W.R.M., KOPROWSKI M., LE N. and DEKA-SZYMANKIEWICZ B.

Abstract (from CDS):

The effects of metallicity on the evolution of protoplanetary disks may be studied in the outer Galaxy where the metallicity is lower than in the solar neighborhood. We present the VLT/KMOS integral field spectroscopy in the near-infrared of ∼120 candidate young stellar objects (YSOs) in the CMa-ℓ224 star-forming region located at a Galactocentric distance of 9.1 kpc. We characterize the YSO accretion luminosities and accretion rates using the hydrogen Brγ emission and find a median accretion luminosity of $\mathrm{log}({L}_{\mathrm{acc}})=-{0.82}_{-0.82}^{+0.80}{L}_{\odot }$. Based on the measured accretion luminosities, we investigate the hypothesis of star formation history in the CMa-ℓ224. Their median values suggest that Cluster C, where most of YSO candidates have been identified, might be the most evolved part of the region. The accretion luminosities are similar to those observed toward low-mass YSOs in the Perseus and Orion molecular clouds, and they do not reveal the impact of lower metallicity. Similar studies in other outer Galaxy clouds covering a wide range of metallicities are critical to gain a complete picture of star formation in the Galaxy.

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

Journal keyword(s): Star-forming regions

Simbad objects: 122

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Number of rows : 122
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
2 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
3 NGC 1333 OpC 03 29 09.2 +31 20 59           ~ 1575 1
4 NAME Perseus Cloud SFR 03 35.0 +31 13           ~ 1553 0
5 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
6 NAME Orion Molecular Cloud MoC 05 56 -01.8           ~ 1227 1
7 NAME Canis Major Cloud MoC 07 05 -10.8           ~ 9 0
8 2MASS J07085552-1029156 NIR 07 08 55.52424 -10 29 15.6948           ~ 2 0
9 2MASS J07085587-1029045 Y*? 07 08 55.87224 -10 29 04.5348           ~ 2 0
10 2MASS J07085679-1029232 Y*? 07 08 56.79048 -10 29 23.2008           ~ 2 0
11 2MASS J07085909-1028539 NIR 07 08 59.09760 -10 28 53.9076           ~ 2 0
12 2MASS J07090015-1031268 Y*? 07 09 00.1528135008 -10 31 26.863492692           ~ 2 0
13 2MASS J07090260-1030361 Y*? 07 09 02.60856 -10 30 36.1764           ~ 2 0
14 2MASS J07090708-1024469 * 07 09 07.0829675616 -10 24 46.966974660           ~ 2 0
15 2MASS J07090840-1031301 Y*? 07 09 08.4102511056 -10 31 29.949954312           ~ 3 0
16 2MASS J07090866-1026117 Em* 07 09 08.6695838760 -10 26 11.844541608           ~ 5 0
17 2MASS J07091197-1029244 NIR 07 09 11.97816 -10 29 24.4860           ~ 2 0
18 2MASS J07091243-1028199 Y*? 07 09 12.43344 -10 28 19.9884           ~ 3 0
19 2MASS J07091352-1028208 NIR 07 09 13.52712 -10 28 20.8488           ~ 2 0
20 2MASS J07091426-1028175 Y*? 07 09 14.26344 -10 28 17.5692           ~ 2 0
21 2MASS J07091436-1029346 Em* 07 09 14.3452911356 -10 29 34.357102108           ~ 3 0
22 2MASS J07091591-1027405 Y*? 07 09 15.91296 -10 27 40.5216           ~ 4 0
23 2MASS J07091592-1031244 Y*? 07 09 15.92376 -10 31 24.4740           ~ 3 0
24 SSTGLMA G224.2638-00.8456 Y*? 07 09 16.43353 -10 27 43.8190           ~ 2 0
25 2MASS J07091705-1026105 NIR 07 09 17.05824 -10 26 10.5432           ~ 2 0
26 2MASS J07091722-1027215 Y*? 07 09 17.22960 -10 27 21.5532           ~ 3 0
27 2MASS J07091734-1031338 NIR 07 09 17.34360 -10 31 33.8448           ~ 2 0
28 SSTGLMA G224.2778-00.8465 Y*? 07 09 17.79648 -10 28 29.8560           ~ 2 0
29 2MASS J07091789-1029113 * 07 09 17.8960101024 -10 29 11.382208980           ~ 2 0
30 2MASS J07091801-1027027 NIR 07 09 18.01656 -10 27 02.7648           ~ 2 0
31 2MASS J07091802-1031369 NIR 07 09 18.02904 -10 31 36.9228           ~ 2 0
32 2MASS J07091822-1031529 * 07 09 18.2298646056 -10 31 52.987112688           ~ 2 0
33 2MASS J07091851-1026460 NIR 07 09 18.51480 -10 26 46.0140           ~ 2 0
34 2MASS J07091910-1028226 Y*? 07 09 19.1038517544 -10 28 22.639896012           ~ 2 0
35 SSTGLMA G224.2591-00.8305 Y*? 07 09 19.13328 -10 27 04.4316           ~ 2 0
36 2MASS J07091925-1034369 Y*? 07 09 19.2476236896 -10 34 37.062049440           ~ 2 0
37 2MASS J07091965-1026352 NIR 07 09 19.65840 -10 26 35.2644           ~ 2 0
38 2MASS J07092003-1030285 Y*? 07 09 20.0327059896 -10 30 28.565604792           ~ 4 0
39 2MASS J07092026-1029436 NIR 07 09 20.26608 -10 29 43.6452           ~ 2 0
40 2MASS J07092063-1028172 Y*? 07 09 20.63280 -10 28 17.2560           ~ 2 0
41 2MASS J07092064-1031340 Y*? 07 09 20.6418630960 -10 31 34.105800288           ~ 4 0
42 2MASS J07092069-1029031 * 07 09 20.6909793096 -10 29 03.027579449           ~ 2 0
43 2MASS J07092083-1029074 Y*? 07 09 20.8376437944 -10 29 07.576070964           ~ 2 0
44 2MASS J07092139-1029344 Y*O 07 09 21.3947971032 -10 29 34.509116688           ~ 28 0
45 2MASS J07092142-1028538 * 07 09 21.4255610904 -10 28 53.806458504           ~ 2 0
46 IRAS 07069-1026 Or* 07 09 22.2883567944 -10 30 57.022622100           ~ 8 0
47 2MASS J07092265-1030455 Y*? 07 09 22.6632928728 -10 30 45.585131364           ~ 2 0
48 2MASS J07092333-1027145 Y*? 07 09 23.33016 -10 27 14.5368           ~ 2 0
49 2MASS J07092357-1029271 NIR 07 09 23.57928 -10 29 27.1176           ~ 2 0
50 2MASS J07092436-1029353 NIR 07 09 24.36576 -10 29 35.3976           ~ 2 0
51 SSTGLMA G224.2828-00.8148 MIR 07 09 25.23168 -10 27 53.6868           ~ 2 0
52 2MASS J07092568-1029231 Y*? 07 09 25.68240 -10 29 23.1648           ~ 2 0
53 2MASS J07092580-1028517 Y*? 07 09 25.80624 -10 28 51.7764           ~ 2 0
54 2MASS J07092584-1028443 Y*? 07 09 25.84224 -10 28 44.3856           ~ 3 0
55 2MASS J07092585-1029075 Y*? 07 09 25.85208 -10 29 07.5336           ~ 3 0
56 2MASS J07092587-1030255 Y*? 07 09 25.87512 -10 30 25.5456           ~ 2 0
57 2MASS J07092622-1030444 Y*? 07 09 26.2299323856 -10 30 44.162734788           ~ 2 0
58 2MASS J07092630-1028304 NIR 07 09 26.30160 -10 28 30.4068           ~ 2 0
59 2MASS J07092656-1027008 Y*? 07 09 26.56872 -10 27 00.8892           ~ 4 0
60 2MASS J07092672-1027181 NIR 07 09 26.72088 -10 27 18.1980           ~ 2 0
61 SSTGLMA G224.2903-00.8108 Y*? 07 09 26.94624 -10 28 10.8840           ~ 2 0
62 SSTGLMA G224.3095-00.8172 Y*? 07 09 27.67296 -10 29 22.1352           ~ 4 0
63 IRAS 07070-1024 * 07 09 29.3072310168 -10 29 05.709255792           ~ 4 0
64 2MASS J07093628-1029129 * 07 09 36.2811013176 -10 29 12.784384788           ~ 2 0
65 2MASS J07094321-1027497 NIR 07 09 43.21032 -10 27 49.7124           ~ 2 0
66 2MASS J07094435-1033041 * 07 09 44.3524981368 -10 33 03.867191208           ~ 2 0
67 IRAS 07073-1023 Y*? 07 09 45.47616 -10 28 43.2624           ~ 6 0
68 2MASS J07094718-1028514 NIR 07 09 47.18184 -10 28 51.4992           ~ 2 0
69 2MASS J07094739-1029076 NIR 07 09 47.39280 -10 29 07.6092           ~ 2 0
70 2MASS J07094798-1028427 * 07 09 47.9796743736 -10 28 42.626819928           ~ 2 0
71 SSTGLMA G224.3462-00.7394 Y*? 07 09 48.69960 -10 29 10.7484           ~ 4 0
72 2MASS J07095053-1035187 NIR 07 09 50.5351329216 -10 35 18.266615412           ~ 2 0
73 2MASS J07095395-1030004 Y*? 07 09 53.9518703424 -10 30 00.452326392           ~ 3 0
74 2MASS J07095684-1032034 NIR 07 09 56.84256 -10 32 03.4260           ~ 2 0
75 2MASS J07095743-1033008 Y*? 07 09 57.43080 -10 33 00.8784           ~ 3 0
76 SSTGLMA G224.3986-00.7060 Y*? 07 10 01.83240 -10 31 02.6724           ~ 2 0
77 2MASS J07100325-1031424 Y*? 07 10 03.25536 -10 31 42.4020           ~ 3 0
78 2MASS J07100413-1031127 Y*? 07 10 04.13088 -10 31 12.7092           ~ 2 0
79 2MASS J07100444-1031071 NIR 07 10 04.44216 -10 31 07.1832           ~ 2 0
80 2MASS J07100454-1031508 NIR 07 10 04.54344 -10 31 50.8944           ~ 2 0
81 SSTGLMA G224.4210-00.7045 MIR 07 10 04.68264 -10 32 11.6196           ~ 2 0
82 SSTGLMA G224.4114-00.6969 Y*? 07 10 05.38608 -10 31 29.4456           ~ 2 0
83 2MASS J07100624-1032589 NIR 07 10 06.24216 -10 32 58.9344           ~ 2 0
84 2MASS J07100636-1032213 Y*? 07 10 06.3519637392 -10 32 21.300865368           ~ 2 0
85 SSTGLMA G224.4338-00.7003 Y*? 07 10 07.01352 -10 32 45.4380           ~ 3 0
86 2MASS J07100719-1032037 Y*? 07 10 07.19136 -10 32 03.7140           ~ 2 0
87 2MASS J07100800-1032262 NIR 07 10 08.00424 -10 32 26.2680           ~ 2 0
88 SSTGLMA G224.4514-00.7045 Y*? 07 10 08.10288 -10 33 48.6756           ~ 4 0
89 2MASS J07100879-1034091 NIR 07 10 08.79576 -10 34 09.1596           ~ 2 0
90 2MASS J07100886-1031594 NIR 07 10 08.86752 -10 31 59.4984           ~ 2 0
91 2MASS J07100995-1035460 * 07 10 09.9620936496 -10 35 46.026323988           ~ 2 0
92 2MASS J07101076-1033342 Y*? 07 10 10.76112 -10 33 34.2792           ~ 2 0
93 2MASS J07101264-1032116 Y*? 07 10 12.64296 -10 32 11.6628           ~ 2 0
94 2MASS J07101382-1031317 NIR 07 10 13.82832 -10 31 31.7712           ~ 2 0
95 2MASS J07101434-1032187 Y*? 07 10 14.34432 -10 32 18.7512           ~ 4 0
96 MSX6C G224.4566-00.6788 Y*? 07 10 14.43792 -10 33 21.9924           ~ 3 0
97 2MASS J07101519-1033145 Y*? 07 10 15.19056 -10 33 14.5224           ~ 2 0
98 2MASS J07101554-1035115 NIR 07 10 15.54552 -10 35 11.5116           ~ 2 0
99 2MASS J07101799-1032585 NIR 07 10 17.99880 -10 32 58.5024           ~ 2 0
100 2MASS J07101838-1035328 Y*? 07 10 18.3879240528 -10 35 32.841806856           ~ 4 0
101 2MASS J07101893-1035086 NIR 07 10 18.93768 -10 35 08.6748           ~ 2 0
102 2MASS J07101907-1032587 NIR 07 10 19.07544 -10 32 58.7040           ~ 2 0
103 UCAC4 398-022374 * 07 10 20.2981101864 -10 35 15.857857860   15.85 15.10 14.92   ~ 2 0
104 2MASS J07102061-1036140 NIR 07 10 20.61672 -10 36 14.0328           ~ 2 0
105 2MASS J07102126-1035012 NIR 07 10 21.26256 -10 35 01.2912           ~ 2 0
106 2MASS J07102188-1033058 * 07 10 21.8882488848 -10 33 05.829349572           ~ 2 0
107 2MASS J07102190-1034477 Y*? 07 10 21.90816 -10 34 47.7732           ~ 4 0
108 2MASS J07102287-1034249 Y*? 07 10 22.87968 -10 34 24.9024           ~ 3 0
109 2MASS J07102327-1032468 NIR 07 10 23.27088 -10 32 46.8924           ~ 2 0
110 2MASS J07102444-1032573 Y*? 07 10 24.44112 -10 32 57.3648           ~ 2 0
111 2MASS J07102471-1032513 Y*? 07 10 24.71304 -10 32 51.3888           ~ 2 0
112 SSTGLMA G224.4806-00.6430 Y*? 07 10 24.73344 -10 33 39.8736           ~ 2 0
113 2MASS J07102493-1032403 NIR 07 10 24.93648 -10 32 40.3800           ~ 2 0
114 2MASS J07102496-1032453 Y*? 07 10 24.96216 -10 32 45.3084           ~ 2 0
115 2MASS J07102509-1033141 Em* 07 10 25.1022596832 -10 33 14.328164592           ~ 3 0
116 2MASS J07102547-1032072 * 07 10 25.4764507944 -10 32 07.372018284           ~ 2 0
117 2MASS J07102623-1033034 Y*? 07 10 26.23536 -10 33 03.4524           ~ 2 0
118 2MASS J07102665-1032503 Y*? 07 10 26.65272 -10 32 50.3232           ~ 3 0
119 2MASS J07102720-1033156 NIR 07 10 27.20016 -10 33 15.6672           ~ 2 0
120 2MASS J07102963-1033224 Y*? 07 10 29.63208 -10 33 22.4424           ~ 3 0
121 2MASS J07103035-1033377 Y*? 07 10 30.35400 -10 33 37.7748           ~ 3 0
122 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0

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