2003AJ....125.1480A


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.18CEST04:15:24

2003AJ....125.1480A - Astron. J., 125, 1480-1506 (2003/March-0)

The evolutionary state of stars in the NGC 1333S star formation region.

ASPIN C.

Abstract (from CDS):

We present 2 µm near-IR spectroscopic observations of a sample of 33 objects in the NGC 1333S active star-forming cluster centered on the pre-main-sequence star SSV 13. We have previously studied this region photometrically in the optical and near-IR, and with the addition of these near-IR spectra, we further probe the pre-main-sequence cluster membership and evolutionary state. From the atomic and molecular absorption features observed, together with the earlier photometry, we derive spectral types, effective temperatures, masses, and ages of the stars and conclude that almost all (90%) the stars observed in this sample are pre-main-sequence objects. This result significantly refines the evolutionary information obtained from photometric evidence alone. Comparison with theoretical evolutionary tracks and isochrones suggests that our survey has sampled sources with masses in the range 0.2-2 Mand stellar ages between 7x104 and 1x108 yr with a preponderance of sources around 3x106 yr. This implies the presence of low- to intermediate-mass T Tauri stars of evolutionary designation Class I to Class III. We conclude that star formation seems to have occurred in likely several bursts rather than occurring coevally. Star formation in such a region as NGC 1333S is likely significantly affected by the large number of active molecular outflows in the region, which could provide a mechanism for cloud turbulence and the onset of subsequent star formation.

Abstract Copyright:

Journal keyword(s): Stars: Circumstellar Matter - ISM: Dust, Extinction - Infrared Radiation - ISM: Individual: NGC Number: NGC 1333 - Stars: Formation - Stars: Pre-Main-Sequence - Techniques: Spectroscopic

Simbad objects: 73

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Number of rows : 73

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 * chi Peg PM* 00 14 36.1645107 +20 12 24.120523 8.280 6.380 4.800 3.45 2.32 M2+III 181 0
2 V* SU Per s*r 02 22 06.8945607706 +56 36 14.896842798 13.86 11.57 9.40     M3-M4Iab 135 0
3 NAME [BM89] L1450D DNe 03 28 36.8 +31 15 20           ~ 51 0
4 EM* LkHA 351 Y*O 03 28 46.1902223754 +31 16 38.572402564           M3.0 27 0
5 2MASS J03284782+3116552 Y*O 03 28 47.8269293133 +31 16 55.184657040           M8.0 26 0
6 2MASS J03285101+3118184 Y*O 03 28 51.0203944828 +31 18 18.521337198           M4.5 38 0
7 2MASS J03285105+3116324 Y*O 03 28 51.0658755414 +31 16 32.502563505           M4.0 23 0
8 2MASS J03285119+3119548 Y*O 03 28 51.1926218280 +31 19 54.820791979           K7.0 28 0
9 EM* LkHA 352 Em* 03 28 52.12 +31 18 19.5           ~ 7 0
10 ASR 46 Y*O 03 28 52.9113840591 +31 16 26.532635524           M6V 24 0
11 2MASS J03285392+3118092 Y*O 03 28 53.92752 +31 18 09.2808           K7.0 30 0
12 ASR 42 Y*O 03 28 54.0801694650 +31 16 54.331608120       18.6   M6.5V 28 0
13 2MASS J03285461+3116512 Y*O 03 28 54.6190190324 +31 16 51.236933001       18.5   M1.0 28 0
14 2MASS J03285505+3116287 Y*O 03 28 55.0668441485 +31 16 28.832090502       19.7   M3.0 24 0
15 IRAS 03258+3104 Y*O 03 28 55.30 +31 14 27.8           ~ 160 1
16 [JCC87] IRAS 2A Y*O 03 28 55.55 +31 14 36.7           ~ 410 3
17 2MASS J03285622+3117457 Y*O 03 28 56.2299819972 +31 17 45.694333010       19.2   M4V 14 0
18 2MASS J03285663+3118356 Y*O 03 28 56.6372263258 +31 18 35.594542071           M1.5 45 0
19 2MASS J03285694+3116222 Y*O 03 28 56.9543154262 +31 16 22.333769612       18.2   M2.5 35 0
20 BD+30 547 Y*O 03 28 57.2107612240 +31 14 19.076624755   10.73 9.98 9.1   G4V 97 1
21 2MASS J03285741+3119505 Y*O 03 28 57.4141794447 +31 19 50.436820735           M4.0 13 0
22 2MASS J03285769+3119481 Y*O 03 28 57.7019368071 +31 19 48.102254374           M3.5 18 0
23 2MASS J03285809+3118038 Y*O 03 28 58.1010024308 +31 18 03.751332734     17.8     M0.5 33 0
24 ASR 106 Y*O 03 28 59.30640 +31 15 48.5172           K2.0 51 0
25 ASR 51 Y*O 03 29 00.3115239900 +31 13 38.600364797           M2.5V 22 0
26 ASR 114 Y*O 03 29 01.16520 +31 20 24.4140           ~ 73 1
27 ASR 2 Y*O 03 29 02.8905446739 +31 16 00.956585602           M2.5V 20 0
28 V* V512 Per Or* 03 29 03.7567945196 +31 16 03.959183877           ~ 359 0
29 ASR 8 Y*O 03 29 04.0654589569 +31 17 07.500180814           M7 16 0
30 ASR 105 LM* 03 29 04.662 +31 16 59.15           M6 19 0
31 ASR 7 Y*O 03 29 05.75376 +31 16 39.6948           A3 28 0
32 2MASS J03290832+3120203 Y*O 03 29 08.3258468992 +31 20 20.303837650           M4.0 11 0
33 [JCC87] IRAS 4A Y*O 03 29 10.49 +31 13 30.8           ~ 630 1
34 [JCC87] IRAS 4 FIR 03 29 10.9 +31 13 26           ~ 470 0
35 NGC 1333 OpC 03 29 11 +31 18.6           ~ 1261 1
36 ASR 24 Y*O 03 29 11.3088574788 +31 17 17.571489316           M8V 14 0
37 [JCC87] IRAS 4B Y*O 03 29 12.058 +31 13 02.05           ~ 568 0
38 2MASS J03291243+3114565 Y*O 03 29 12.4324885799 +31 14 56.497565719       14.4   KIII 9 0
39 2MASX J03291426+3114463 G 03 29 14.268 +31 14 46.31           ~ 10 0
40 2MASS J03291667+3116182 Y*O 03 29 16.6744784247 +31 16 18.164503709           M3.5 21 0
41 HH 17 Y*O 03 29 20.4219692946 +31 18 34.243832543     16.38     K6.0 52 0
42 EM* LkHA 271 Y*O 03 29 21.8748368520 +31 15 36.245029969   14.0 14.3     K4.0 59 0
43 EM* LkHA 355 Y*O 03 29 23.1498729543 +31 20 30.302863171           M4.5 24 0
44 LDN 1450 DNe 03 29.6 +31 20           ~ 59 0
45 Ass Per OB 2 As* 03 42.2 +33 26           ~ 314 0
46 IC 348 OpC 03 44 34 +32 09.8           ~ 1255 1
47 * omi02 Eri C Er* 04 15 21.5389590304 -07 39 20.718136574   12.85 11.17     M4.5V 194 0
48 * omi UMa PM* 08 30 15.8706401 +60 43 05.411511 4.79 4.27 3.42 2.76 2.31 G5III: 230 1
49 Wolf 359 Er* 10 56 28.826208 +07 00 52.34400 16.706 15.541 13.507 11.684 9.507 dM6 644 0
50 HD 95735 Er* 11 03 20.19400 +35 58 11.5682 10.030 8.960 7.520 5.99 4.79 M2+V 645 0
51 V* BK Vir AB* 12 30 21.0150535628 +04 24 59.159360514 9.60 8.82 7.28     M7-III: 136 0
52 * 31 Com Ro* 12 51 41.9190038520 +27 32 26.568320838 5.81 5.61 4.94 4.39 4.04 G0IIIp 413 1
53 * eps Vir PM* 13 02 10.5978496 +10 57 32.941443 4.45 3.71 2.79 2.16 1.71 G8III-IIIb 526 0
54 NAME Kelu-1 BD* 13 05 40.1737206066 -25 41 05.830344467         16.85 L2+L3.5 239 0
55 V* SW Vir AB* 13 14 04.3908742003 -02 48 25.155302846 9.24 8.52 6.85     M7III: 253 0
56 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3168 1
57 * kap Oph LP? 16 57 40.0978499 +09 22 30.112596 5.52 4.36 3.20 2.36 1.82 K2III 289 0
58 * 84 Her PM* 17 43 21.5646072179 +24 19 40.157353689   6.394 5.729     G2IIIb 139 0
59 * gam Dra * 17 56 36.36988 +51 29 20.0242 5.630 3.760 2.230 1.08 0.23 K5III 524 0
60 * 13 Lyr LP* 18 55 20.1022285 +43 56 45.931489 7.00 5.59 4.00 1.95 0.04 M5III 303 0
61 * sig Dra PM* 19 32 21.5902990 +69 39 40.234737 5.860 5.460 4.680 4.04 3.63 K0V 591 0
62 * 16 Cyg A ** 19 41 48.9539315338 +50 31 30.218780803 6.79 6.59 5.95 5.50 5.17 G1.5Vb 693 1
63 * 16 Cyg B PM* 19 41 51.9731830550 +50 31 03.086127222 7.07 6.86 6.20 5.76 5.42 G3V 814 1
64 * gam Sge PM* 19 58 45.4286265 +19 29 31.728079 6.97 5.04 3.47 2.27 1.35 M0-III 244 0
65 * 39 Cyg SB* 20 23 51.6206989 +32 11 24.619097 7.27 5.77 4.44 3.43 2.76 K2.5IIIFe-0.5 132 0
66 * 61 Cyg A BY* 21 06 53.9396100677 +38 44 57.897024357 7.50 6.39 5.21 4.19 3.54 K5V 968 0
67 * 75 Cyg ** 21 40 11.1079466463 +43 16 25.816084713   6.682 5.086     M1IIIab 62 0
68 * mu. Cep s*r 21 43 30.4610574 +58 46 48.160181 8.85 6.43 4.08 1.98 0.22 M2-Ia 634 1
69 V* RW Cep s*r 22 23 07.0152079533 +55 57 47.616196874 11.25 8.87 6.65 4.94 3.78 K2_0-Ia 153 0
70 * iot Cep PM* 22 49 40.8169435 +66 12 01.463616 5.50 4.60 3.54 2.69 2.19 K0-III 236 0
71 V* V424 Lac LP* 22 56 25.9984806807 +49 44 00.751810487 8.66 6.71 4.94 3.59 2.54 K5Ib 147 0
72 V* V509 Cas LP* 23 00 05.1007915562 +56 56 43.348681058 8.01 6.68 5.13 3.96 3.11 G4_0 316 0
73 * ups Peg PM* 23 25 22.7835046 +23 24 14.760593 5.15 5.01 4.40 3.86 3.54 F8III 243 0

    Equat.    Gal    SGal    Ecl

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2021.05.18-04:15:24

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