2005ApJ...628..283Y

Query : 2005ApJ...628..283Y

2005ApJ...628..283Y - Astrophys. J., 628, 283-297 (2005/July-3)

The Spitzer C2D survey of large, nearby, interstellar clouds. I. Chamaeleon II observed with MIPS.

YOUNG K.E., HARVEY P.M., BROOKE T.Y., CHAPMAN N., KAUFFMANN J., BERTOLDI F., LAI S.-P., ALCALA J., BOURKE T.L., SPIESMAN W., ALLEN L.E., BLAKE G.A., EVANS II N.J., KOERNER D.W., MUNDY L.G., MYERS P.C., PADGETT D.L., SALINAS A., SARGENT A.I., STAPELFELDT K.R., TEUBEN P., VAN DISHOECK E.F. and WAHHAJ Z.

Abstract (from CDS):

We present maps of over 1.5 deg2 in Chamaeleon (Cha) II at 24, 70, and 160 µm observed with the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS) and a 1.2 deg2 millimeter map from SIMBA on the Swedish-ESO Submillimetre Telescope (SEST). The c2d Spitzer Legacy Team's data reduction pipeline is described in detail. Over 1500 24 µm sources and 41 70 µm sources were detected by MIPS with fluxes greater than 10 σ. More than 40 potential YSOs are identified with a MIPS and 2MASS color-color diagram and by their spectral indices, including two previously unknown sources with 24 µm excesses. Our new SIMBA millimeter map of Cha II shows that only a small fraction of the gas is in compact structures with high column densities. The extended emission seen by MIPS is compared with previous CO observations. Some selected interesting sources, including two detected at 1 mm, associated with Cha II are discussed in detail, and their SEDs are presented. The classification of these sources using MIPS data is found to be consistent with that of previous studies.

Abstract Copyright: ∼

Journal keyword(s): Infrared: Stars - ISM: Clouds - Stars: Formation

Nomenclature: Table 2: SSTc2d JHHMMSS.s+DDMMSS N=44.

Simbad objects: 56

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Number of rows : 56
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4416 0
2 * eta Car Em* 10 45 03.545808 -59 41 03.95124 6.37 7.03 6.48 6.123 4.41 LBV 2439 0
3 IRAS 12340-7958 LP* 12 37 39.7408011816 -80 15 13.707391932   16.11 14.39 13.63 9.81 ~ 107 0
4 NAME Cha III MoC 12 37.8 -80 15           ~ 140 2
5 V* AX Cha Mi* 12 45 06.2856573984 -77 20 13.642917324           M2.5 13 0
6 IRAS 12448-7650 LP? 12 48 25.7049616224 -77 06 36.747495432   17.25 15.14 14.33   M0.5 17 0
7 IRAS S12486-7744 LP* 12 52 17.4688927872 -78 00 37.553579460   16.38 14.54 13.95   ~ 5 0
8 IRAS Z12488-7658 LP* 12 52 30.6218360736 -77 15 13.123459980           M5.5 13 0
9 V* DK Cha TT* 12 53 17.2111480272 -77 07 10.736046012           F0e 142 0
10 NAME Cha II MoC 12 54 -77.2           ~ 337 0
11 2MASS J12533890-7715532 Y*O 12 53 38.9146387776 -77 15 53.247287808           M1.5 12 1
12 2MASS J12534285-7715114 Y*O 12 53 42.856 -77 15 11.48           M6.5 20 0
13 HH 54 HH 12 55 49.5 -76 56 08           ~ 119 0
14 2MASS J12560549-7654106 Y*O 12 56 05.4881804952 -76 54 10.868637456           ~ 5 0
15 NAME Sz 46N Em* 12 56 33.6498681600 -76 45 45.520705728   17.66 16.19 14.61 13.16 M1 30 1
16 Sz 47 Y*O 12 56 58.6633997016 -76 47 06.861163092   14.5       ~ 20 0
17 IRAS 12535-7623 Y*O 12 57 11.6949853032 -76 40 11.291754000   17.20 15.00     M0e 42 0
18 2MASS J12580676-7709094 Y*O 12 58 06.6784743816 -77 09 09.650462868         19.61 M6 22 0
19 2MASS J12590656-7707401 Y*O 12 59 06.56 -77 07 40.1           K4.5 48 0
20 2MASS J12590984-7651037 Y*O 12 59 09.8766268200 -76 51 03.756572676           M5.5 14 0
21 IRAS 12556-7731 LP* 12 59 26.3852196576 -77 47 08.619604404   15.039 13.136 12.748   M5 24 0
22 Sz 49 Y*O 13 00 53.2473650928 -76 54 15.206649912   15.6       M0.5 43 0
23 RX J1300.9-7708 Y*O 13 00 53.46120 -77 09 08.6580           M1 23 0
24 Sz 50 Y*O 13 00 55.3820751133 -77 10 22.247668674   17.64 16.01     M3 45 0
25 2MASS J13005927-7714027 Y*O 13 00 59.2811230320 -77 14 02.848183656         16.26 ~ 24 0
26 Sz 51 Or* 13 01 58.8991295760 -77 51 21.848767020   15.38       K8.5 40 0
27 V* CM Cha TT* 13 02 13.5244979592 -76 37 57.818696016   14.70 13.40     K7IVe 42 0
28 2MASS J13022287-7734494 Y*O 13 02 22.8483923232 -77 34 49.479406140           M5 17 0
29 IRAS 12589-7646 Y*O 13 02 47.7032642640 -77 02 39.973174116       13.75 9.98 M4 15 0
30 Hn 23 Y*O 13 04 24.1091476992 -76 50 01.203848088           K7e 24 0
31 Sz 52 Y*O 13 04 24.8675032320 -77 52 30.280923336   17.7     14.66 M2.5 28 0
32 Hn 24 Y*O 13 04 55.7191411392 -77 39 49.222352340           M0 31 0
33 Hn 25 Y*O 13 05 08.5232959920 -77 33 42.630661188           M2.5 23 0
34 Sz 53 Y*O 13 05 12.6752612232 -77 30 52.566390396   17.85 16.59     M1 31 0
35 Hen 3-854 Or* 13 05 20.6574078672 -77 39 01.506188880   13.88 12.40     K5 45 0
36 V* DL Cha LP* 13 06 08.3984279688 -77 06 27.218586960   12.79 11.57     M6III 24 0
37 Sz 55 Y*O 13 06 30.5147352624 -77 34 00.166145700   18.90 17.49     M2 19 0
38 Sz 56 Y*O 13 06 38.7881087232 -77 30 35.274308688   18.53 17.08     M4 22 0
39 Sandqvist 160 DNe 13 06.9 -77 01           ~ 41 0
40 Sz 57 Y*O 13 06 56.5765655088 -77 23 09.640416696   19.56 17.70     M5 20 0
41 Sz 58 Em* 13 06 57.4252298184 -77 23 41.593041672   17.89 16.01     K5 32 0
42 V* BK Cha Or* 13 07 09.247848 -77 30 30.56004   16.11 14.58 14.41   K7 32 0
43 2MASS J13071806-7740529 Y*O 13 07 18.0439003536 -77 40 53.043429684         16.18 M4.5 19 0
44 Sz 60 ** 13 07 22.760 -77 37 22.89           ~ 17 0
45 PSCz Q13036-7644 Y*O 13 07 36.89 -77 00 09.7           ~ 39 1
46 Hn 26 Y*O 13 07 48.4988968944 -77 41 21.572667204           M2 23 0
47 V* BM Cha Or* 13 08 06.2695235808 -77 55 05.329818156   16.77 14.60     K5 55 0
48 2MASS J13082714-7743232 Y*O 13 08 27.1778458152 -77 43 23.297498148         16.55 M4.5 20 0
49 CHIIXR 37 Y*O 13 09 09.6 -77 09 52           ~ 6 1
50 Sz 62 Y*O 13 09 50.36808 -77 57 24.0228   16.99 15.55 14.838   M2.5 33 0
51 Sz 63 Y*O 13 10 04.1819222640 -77 10 44.849941680   15.2       M3 20 0
52 2MASS J13102531-7729085 Y*O 13 10 25.2630754752 -77 29 08.749518036           ~ 3 0
53 2MASS J13110329-7653330 Y*O 13 11 03.2891384712 -76 53 33.056960244           ~ 2 0
54 2MASS J13125238-7739182 Y*O 13 12 52.38 -77 39 18.3           M4.5 7 0
55 Sz 64 Y*O 13 14 03.7124279328 -77 53 07.576738116   16.3       M5 17 0
56 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3631 1

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