2010ApJ...720...46G

Query : 2010ApJ...720...46G

2010ApJ...720...46G - Astrophys. J., 720, 46-63 (2010/September-1)

Spitzer observations of IC 2118.

GUIEU S., REBULL L.M., STAUFFER J.R., VRBA F.J., NORIEGA-CRESPO A., SPUCK T., ROELOFSEN MOODY T., SEPULVEDA B., WEEHLER C., MARANTO A., COLE D.M., FLAGEY N., LAHER R., PENPRASE B., RAMIREZ S. and STOLOVY S.

Abstract (from CDS):

IC 2118, also known as the Witch Head Nebula, is a wispy, roughly cometary, ∼5 degree long reflection nebula, and is thought to be a site of triggered star formation. In order to search for new young stellar objects (YSOs), we have observed this region in seven mid- and far-infrared bands using the Spitzer Space Telescope and in four bands in the optical using the U. S. Naval Observatory 40 inch telescope. We find infrared excesses in four of the six previously known T Tauri stars in our combined infrared maps, and we find six entirely new candidate YSOs, one of which may be an edge-on disk. Most of the YSOs seen in the infrared are Class II objects, and they are all in the "head" of the nebula, within the most massive molecular cloud of the region.

Abstract Copyright: ∼

Journal keyword(s): circumstellar matter - infrared: stars - ISM: clouds - ISM: individual objects: IC 2118 - stars: formation - stars: pre-main sequence

Simbad objects: 46

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Number of rows : 46
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 Eridanus Shell sh 02 17 31 +07 49.6           ~ 52 0
2 NAME Per 6 Aggregate PoC 03 43 38.30 +31 43 51.3           ~ 4 1
3 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
4 V* V1213 Tau Or* 04 31 37.5055489536 +18 12 24.383952396           K7 605 0
5 V* HV Tau C TT* 04 38 35.5125950280 +26 10 41.316576204         14.90 K6 110 0
6 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
7 IRAS 04591-0856 Y*O 05 01 29.63520 -08 52 16.8744           K4-M3 24 0
8 HHL 17 Y*O 05 01 31.6 -08 52 42           ~ 8 0
9 [DB2002b] G208.42-28.39 MoC 05 01 47.6 -08 55 43           ~ 19 0
10 LEDA 3080765 G 05 01 53.8268601552 -07 45 32.731417080   15.78   14.50   ~ 12 0
11 NGC 1909 RNe 05 02 -07.9           ~ 37 0
12 UCAC4 406-007491 TT* 05 02 06.3137400576 -08 50 46.726662408   15.55 14.60 14.39   M0-2IVe 6 0
13 2MASS J05022084-0744099 TT* 05 02 20.8460227728 -07 44 09.993564276   11.94 11.30     G7 13 0
14 MBM 22 MoC 05 04 36.3 -08 15 55           ~ 16 0
15 2MASS J05060574-0646151 * 05 06 05.7511153824 -06 46 15.174803100   17.10       G8: 2 0
16 HD 32925 Pu* 05 06 24.1032080808 -06 18 50.326965144   9.54 9.21     B8.5VSi 26 0
17 2MASS J05065009-0619079 Y*O 05 06 50.1010164312 -06 19 07.955140728           ~ 5 0
18 IRAS 05044-0621 TT* 05 06 53.49216 -06 17 12.3900       16.11 13.51 K4e 9 0
19 2MASS J05071157-0615098 TT* 05 07 11.5712958864 -06 15 09.869224212           M2IVe 8 0
20 IRAS F05047-0618 IR 05 07 12.0 -06 15 04           ~ 3 0
21 2MASS J05072058-0616119 Y*O 05 07 20.5833714336 -06 16 11.974328256           ~ 6 0
22 2MASS J05072188-0611524 NIR 05 07 21.8903986032 -06 11 52.573113600           ~ 1 0
23 2MASS J05072865-0613258 Y*O 05 07 28.6579255536 -06 13 25.905850428           ~ 5 0
24 IRAS 05050-0614 mul 05 07 29.3 -06 10 27           ~ 4 0
25 2MASS J05072937-0616368 * 05 07 29.3739181560 -06 16 36.952109328           ~ 3 0
26 Kiso A-0974 19 TT* 05 07 30.1681071816 -06 10 15.993676380   17.02 15.47 14.20   K5IV 15 0
27 Kiso A-0974 20 TT* 05 07 30.617016 -06 10 59.77524   16.44 14.75 14.26   K7IV 9 0
28 2MASS J05073372-0613474 Y*O 05 07 33.7199182848 -06 13 47.507130552           ~ 5 0
29 V* MS Eri Or* 05 07 48.3256605504 -09 31 43.260275316     12.50     K2 11 0
30 UPM J0508-0617 PM* 05 08 03.1798674936 -06 17 14.059540572       14.2 12.6 ~ 4 0
31 2MASS J05094864-0906065 * 05 09 48.6443308632 -09 06 06.624888228   15.50       G8 2 0
32 2MASS J05112460-0818320 Y*? 05 11 24.5993018256 -08 18 32.092761060   16.70       M0 6 0
33 * bet Ori s*b 05 14 32.27210 -08 12 05.8981 -0.56 0.10 0.13 0.13 0.15 B8Ia 786 0
34 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2514 0
35 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2421 1
36 * tet01 Ori C SB* 05 35 16.4662967280 -05 23 22.921811880 4.20 5.15 5.13 4.91 4.73 O7Vp 1479 1
37 NAME Ori Trapezium OpC 05 35 16.5 -05 23 14           ~ 1708 1
38 M 42 HII 05 35 16.8 -05 23 15           ~ 4411 0
39 * tet Ori ** 05 35.3 -05 24           ~ 41 1
40 NAME Ori Complex Cld 05 35.3 -05 23           ~ 481 0
41 [KAY2001] G206.4-26.0 MoC 13 34 12 -24 56.9           ~ 2 0
42 [KAY2001] G206.8-26.5 MoC 13 35 45 -25 25.1           ~ 2 0
43 [KAY2001] G207.2-27.1 MoC 13 37 19 -26 05.3           ~ 2 0
44 [KAY2001] G207.3-26.5 MoC 13 37 36 -25 29.3           ~ 2 0
45 ELAIS N1 reg 16 10 01 +54 30.6           ~ 489 0
46 LDN 1251 DNe 22 36.1 +75 16           ~ 119 0

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