2003ApJ...595..900K

Query : 2003ApJ...595..900K

2003ApJ...595..900K - Astrophys. J., 595, 900-912 (2003/October-1)

Triggered star formation in the W5 H II region.

KARR J.L. and MARTIN P.G.

Abstract (from CDS):

Young, massive stars can have a profound effect on the surrounding interstellar medium. The triggering of star formation by an H II region expanding into nearby molecular material is an example of this type of interaction. This paper presents a multiwavelength study of the W5 star-forming region investigating the possibility of triggered star formation. The ionizing sources and the morphologies of the ionized and molecular gas and the dust are examined. A population of YSOs is identified. Statistical evidence for triggering of these YSOs is discussed in terms of the spatial dependence of the star formation efficiency and the clustering and correlation of the YSO sources with respect to the molecular gas and the H II region. Evidence for direct interactions between the components is discussed, on both large scales and the scale of individual objects. Timescales for the expansion of the H II region, triggering processes, and the ages of the YSOs are compared to establish a plausible sequence of events.

Abstract Copyright: ∼

Journal keyword(s): ISM: H II Regions - ISM: Individual: Alphanumeric: W5 - Stars: Formation

CDS comments: p. 910 : * AC 13039 is a misprint for AC 10309 (= AC2000 10309)

Simbad objects: 70

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Number of rows : 70
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 W 3 MoC 02 27 04.10 +61 52 27.1           ~ 1064 3
2 NAME Heart Nebula HII 02 32.7 +61 27           ~ 336 1
3 NAME Majaess 30 Cl* 02 44 36.341 +60 59 43.34           ~ 12 0
4 IRAS 02407+6029 Y*O 02 44 40.2693441000 +60 42 29.571409368           ~ 12 0
5 2MASX J02444400+6020362 Y*O 02 44 44.009 +60 20 36.25           ~ 3 0
6 LDN 1375 DNe 02 45 12.5 +60 49 44           ~ 13 0
7 IRAS 02413+6044 Y*O 02 45 14.8 +60 56 39           ~ 3 0
8 [KSP2003] J024527.60+602715.8 Y*O 02 45 27.60 +60 27 15.8           ~ 7 0
9 [KSP2003] J024618.67+601308.4 Y*O 02 46 18.67 +60 13 08.4           ~ 6 0
10 2MASS J02470551+6102451 Or* 02 47 05.5166071728 +61 02 45.236285232           ~ 5 0
11 [KSP2003] J024715.43+603049.0 Y*O 02 47 15.43 +60 30 49.0           ~ 16 0
12 IRAS 02437+6145 HII 02 47 40.4 +61 58 26           ~ 10 0
13 IRAS 02439+6025 Y*O 02 47 50.3 +60 38 06           ~ 5 0
14 IRAS 02439+6051 Y*O 02 47 52.0 +61 03 40           ~ 4 0
15 JCMTSF J024815.9+602445 Cld 02 48 15.4 +60 24 35           ~ 11 0
16 [KSP2003] J024825.61+605508.0 Y*O 02 48 25.61 +60 55 08.0           ~ 12 0
17 IRAS 02449+5955 Y*O 02 48 48.6 +60 08 11           ~ 3 0
18 IRAS 02455+6034 HII 02 49 23.2 +60 47 01           ~ 21 0
19 [KSP2003] J024947.30+604210.1 HII 02 49 47.30 +60 42 10.1           ~ 19 0
20 2MASS J02495303+5941362 Y*O 02 49 53.0503881744 +59 41 36.634580052           ~ 5 0
21 RAFGL 5085 Y*O 02 50 08.5608261912 +61 59 51.902005956           ~ 44 0
22 IRAS 02469+5946 Y*O 02 50 47.2 +59 58 47           ~ 4 0
23 HD 17505 ** 02 51 07.97514 +60 25 03.8720 6.83 7.47 7.07     O6.5III((f))n+O8V 205 0
24 HD 17520 ** 02 51 14.4527711976 +60 23 10.057239852 7.86 8.54 8.24 7.96 7.73 O9.2Ve+O8Vz 151 0
25 IC 1848 OpC 02 51 19.4 +60 25 32   6.87 6.5     ~ 522 2
26 IRAS 02475+6051 Y*O 02 51 26.9 +61 03 21           ~ 3 0
27 IRAS 02475+6156 Y*O 02 51 33.7 +62 09 18           ~ 7 0
28 IRAS 02477+5946 Y*O 02 51 34.4 +59 59 20           ~ 4 0
29 2MASS J02514766+6021219 Y*O 02 51 47.7241160520 +60 21 22.561467912           ~ 3 0
30 HD 237019 Y*O 02 53 28.4714345208 +60 27 34.983778176 11.257 10.14 9.70     O6.5-O7IV-V 96 0
31 IRAS 02497+6018 glb 02 53 39.22 +60 30 18.0           ~ 7 0
32 BD+60 586 * 02 54 10.6733578416 +60 39 03.492857052 9.632 8.713 8.489 8.893   O7Vz 103 0
33 IRAS 02503+6025 HII 02 54 13.6 +60 37 37           ~ 5 0
34 NAME SFO 12 IR Stellar Group Cl* 02 55 03.0 +60 35 45           ~ 23 0
35 IRAS 02514+5936 Y*O 02 55 17.9 +59 49 06           ~ 3 0
36 IRAS 02518+6034 Y*O 02 55 43.9 +60 46 16           ~ 3 0
37 IRAS 02518+6041 Y*O 02 55 46.9 +60 53 45           ~ 3 0
38 IRAS 02521+6022 Y*O 02 56 01.2 +60 34 58           ~ 3 0
39 IRAS 02526+6041 Y*O 02 56 37.7 +60 54 01           ~ 4 0
40 IRAS 02527+6136 Y*O 02 56 42.5 +61 48 56           ~ 4 0
41 IRAS 02530+6003 Y*O 02 56 56.2 +60 15 50           ~ 3 0
42 IRAS 02531+6013 Y*O 02 57 03.4 +60 25 37           ~ 3 0
43 IRAS 02531+6032 HII 02 57 03.88 +60 44 34.1           ~ 10 0
44 BD+60 596 Pe* 02 57 08.0274046344 +60 39 44.243907156 11.061 10.06 9.66 9.68   B1V:n 30 0
45 IRAS 02532+6042 Cld 02 57 11.0 +60 54 24           ~ 3 0
46 IRAS 02532+6028 Cld 02 57 12.7 +60 40 11           ~ 5 0
47 2MASS J02571849+6039063 * 02 57 18.4844989608 +60 39 06.171138864           ~ 2 0
48 IRAS 02538+6042 Y*O 02 57 48.8 +60 54 43           ~ 3 0
49 IRAS 02541+6100 Y*O 02 58 05.1 +61 12 35           ~ 4 0
50 IRAS 0254+605P02 Y*O 02 58 51.4 +60 44 05           ~ 4 0
51 EM* GGA 216 Be* 02 59 05.1339562152 +60 54 04.054523256   14.09 13.31 13.11   B4Ve 20 0
52 HD 18326 Y*O 02 59 23.1709737312 +60 33 59.519691216 9.211 8.21 7.94     O6.5V((f))z+O9/B0V: 142 0
53 IRAS 02557+6035 Y*O 02 59 40.3 +60 47 09           ~ 3 0
54 IRAS 02563+6035 Y*O 03 00 21.1 +60 47 47           ~ 3 0
55 IRAS 02568+6047 Y*O 03 00 49.7 +60 59 30           ~ 3 0
56 IRAS 02570+6028 Cld 03 01 00.7 +60 40 20           ~ 37 0
57 IRAS 02572+6006 Y*O 03 01 11.7 +60 18 09           ~ 4 0
58 NAME AFGL 4029 IRS 1 Y*O 03 01 29.2 +60 29 12           ~ 112 1
59 NAME W 5 East MoC 03 01 32 +60 29.2           ~ 130 2
60 IRAS 02577+6029 Y*O 03 01 43.7 +60 41 17           ~ 4 0
61 IRAS 02581+6021 Y*O 03 02 03.8 +60 32 56           ~ 4 0
62 IRAS 02585+6030 Cld 03 02 30.1 +60 42 35           ~ 4 0
63 SH 2-201 HII 03 03 17.9 +60 27 52           ~ 118 0
64 IRAS 02593+6026 Y*O 03 03 17.9 +60 38 29           ~ 3 0
65 IRAS 02595+6011 Y*O 03 03 29.3 +60 23 21           ~ 3 0
66 IRAS 02598+6008 Y*? 03 03 50.172 +60 20 12.72           ~ 13 0
67 NAME Per Arm PoG 03 30 +45.0           ~ 1672 0
68 [WHL84] W5NW MoC ~ ~           ~ 3 0
69 [WHL84] W5NE MoC ~ ~           ~ 4 0
70 NAME W 5 West Rad ~ ~           ~ 26 0

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