2004A&A...420..945G

Query : 2004A&A...420..945G

2004A&A...420..945G - Astronomy and Astrophysics, volume 420, 945-955 (2004/6-4)

ISOCAM observations of the L1551 star formation region.

GALFALK M., OLOFSSON G., KAAS A.A., OLOFSSON S., BONTEMPS S., NORDH L., ABERGEL A., ANDRE P., BOULANGER F., BURGDORF M., CASALI M.M., CESARSKY C.J., DAVIES J., FALGARONE E., MONTMERLE T., PERAULT M., PERSI P., PRUSTI T., PUGET J.L. and SIBILLE F.

Abstract (from CDS):

The results of a deep mid-IR ISOCAM survey of the L1551 dark molecular cloud are presented. The aim of this survey is a search for new YSO (Young Stellar Object) candidates, using two broad-band filters centred at 6.7 and 14.3µm. Although two regions close to the centre of L1551 had to be avoided due to saturation problems, 96 sources were detected in total (76 sources at 6.7µm and 44 sources at 14.3µm). Using the 24 sources detected in both filters, 14 were found to have intrinsic mid-IR excess at 14.3µm and were therefore classified as YSO candidates. Using additional observations in B, V, I, J, H and K obtained from the ground, most candidates detected at these wavelengths were confirmed to have mid-IR excess at 6.7µm as well, and three additional YSO candidates were found. Prior to this survey only three YSOs were known in the observed region (avoiding L1551IRS5/NE and HL/XZ Tau). This survey reveals 15 new YSO candidates, although several of these are uncertain due to their extended nature either in the mid-IR or in the optical/near-IR observations. Two of the sources with mid-IR excess are previously known YSOs, one is a brown dwarf (MHO5) and the other is the well known T Tauri star HH30, consisting of an outflow and an optically thick disk seen edge on.

Abstract Copyright: ∼

Journal keyword(s): stars: formation - stars: low-mass, brown dwarfs - stars: pre-main sequence - stars: late-type - infrared: stars

VizieR on-line data: <Available at CDS (J/A+A/420/945): table2.dat table2.tex>

Nomenclature: Table 2: [GOK2004] NN (Nos 1-96).

Simbad objects: 107

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Number of rows : 107
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 Tau-Aur Complex SFR 04 30 +25.0           ~ 1357 0
2 [GOK2004] 1 IR 04 30 43.1 +17 58 30     22.27     ~ 1 0
3 [GOK2004] 2 IR 04 30 43.7 +17 54 25   15.9       ~ 1 0
4 [GOK2004] 3 IR 04 30 48.4 +18 18 36   17.58 16.10     ~ 1 0
5 SSV LDN 1551 6 IR 04 30 50.0 +18 05 20   20.96 18.94     ~ 2 0
6 2MASS J04305080+1812596 * 04 30 50.8109741208 +18 12 59.772316320   22.56 20.33     ~ 1 0
7 2MASS J04305171+1810237 * 04 30 51.7149192816 +18 10 23.842195284     21.06     ~ 1 0
8 [GOK2004] 7 IR 04 30 52.1 +17 59 00   21.19 19.83     ~ 1 0
9 2MASS J04305277+1818197 * 04 30 52.7793616032 +18 18 19.801470672     20.01     ~ 1 0
10 [GOK2004] 9 IR 04 30 53.3 +17 53 37   16.61 15.22     ~ 1 0
11 2MASS J04305382+1759107 NIR 04 30 53.8267291248 +17 59 10.838184432   22.62 20.74     ~ 2 0
12 GSC 01269-00485 * 04 30 54.3288110112 +17 58 23.083721616   16.94 14.88 14.33   ~ 4 0
13 TYC 1269-261-1 Pe* 04 30 54.6802806984 +17 55 12.125890740   12.25 11.59     kA3hA9mF2SiEu 6 0
14 2MASS J04305814+1803295 G 04 30 58.142 +18 03 29.54     21.76     ~ 4 0
15 [GOK2004] 14 IR 04 30 59.4 +18 01 24           ~ 1 0
16 2MASS J04305971+1804237 * 04 30 59.7190551096 +18 04 23.598322932   16.9       ~ 5 0
17 2MASS J04305978+1759551 * 04 30 59.7856227984 +17 59 55.105618128   17.5       ~ 3 0
18 [GOK2004] 17 IR 04 31 00.2 +18 03 45   22.59 21.41     ~ 1 0
19 2MASS J04310113+1818232 * 04 31 01.1368420824 +18 18 23.094394344   21.07 18.93     ~ 1 0
20 [GOK2004] 19 IR 04 31 01.8 +18 03 00     21.39     ~ 1 0
21 HH 258 HH 04 31 04.8 +18 03 32           ~ 9 0
22 [GOK2004] 20 IR 04 31 05.7 +18 14 12           ~ 2 0
23 LP 415-1166 PM* 04 31 05.810832 +18 03 21.14316   17.22 15.86 15.67   ~ 13 1
24 [GOK2004] 22 IR 04 31 05.9 +18 01 48           ~ 1 0
25 HH 28 HH 04 31 06.8 +18 03 28           ~ 94 0
26 2MASS J04310716+1814298 NIR 04 31 07.164 +18 14 29.88           ~ 3 0
27 [GOK2004] 24 IR 04 31 08.2 +18 08 12           ~ 1 0
28 [GOK2004] 25 IR 04 31 08.7 +18 18 37           ~ 1 0
29 [GOK2004] 28 IR 04 31 09.0 +18 03 44           ~ 1 0
30 2MASS J04310901+1801420 NIR 04 31 09.01 +18 01 42.1           ~ 1 0
31 [GBA2007] 1274 X 04 31 09.15 +18 18 59.0   19.63 17.84     ~ 2 0
32 [GOK2004] 29 IR 04 31 11.2 +18 11 05           ~ 2 0
33 [GOK2004] 30 IR 04 31 11.9 +18 08 18           ~ 1 0
34 [GOK2004] 31 IR 04 31 12.5 +18 17 49           ~ 1 0
35 [GOK2004] 32 Y*O 04 31 14.1 +18 10 22           ~ 2 0
36 [GOK2004] 33 IR 04 31 15.9 +18 09 15     22.61     ~ 1 0
37 GSC 01269-01201 PM* 04 31 16.4043963696 +18 18 32.511529152   14.3       ~ 2 0
38 [GOK2004] 35 IR 04 31 17.6 +18 06 24           ~ 1 0
39 [GOK2004] 36 IR 04 31 17.6 +18 01 53   22.36 20.06     ~ 1 0
40 [GOK2004] 37 IR 04 31 19.0 +18 03 02           ~ 1 0
41 [GOK2004] 38 IR 04 31 19.3 +18 09 21           ~ 1 0
42 2MASS J04312032+1801382 * 04 31 20.3190387456 +18 01 38.261629920   19.79 18.05     ~ 2 0
43 [GBA2007] 1286 X 04 31 21.21 +17 59 49.8           ~ 3 0
44 [GOK2004] 41 IR 04 31 21.6 +18 02 50   22.00 19.92     ~ 1 0
45 [GOK2004] 42 IR 04 31 22.5 +18 14 51   18.60 17.10     ~ 1 0
46 GSC 01269-01017 * 04 31 23.8323913440 +17 58 54.730273908   14.96 13.19 12.73   G5 2 0
47 2MASS J04312405+1800215 TT* 04 31 24.0577715784 +18 00 21.456961776   20.38 18.678   14.32 M7 73 0
48 2MASS J04312473+1813306 * 04 31 24.7373366232 +18 13 30.465400404   18.44 16.98     ~ 1 0
49 HD 285845 Or* 04 31 25.1383575216 +18 16 16.731197940   11.06 10.31     G5 33 0
50 [GOK2004] 46 IR 04 31 25.3 +18 10 43           ~ 1 0
51 [GOK2004] 48 IR 04 31 25.6 +18 17 02   19.92 18.21     ~ 1 0
52 [GOK2004] 49 IR 04 31 26.3 +18 05 52     21.98     ~ 1 0
53 [GOK2004] 50 IR 04 31 26.6 +18 06 59           ~ 1 0
54 HH 29 HH 04 31 26.9 +18 06 39           ~ 110 0
55 [GOK2004] 51 IR 04 31 27.0 +18 10 41           ~ 1 0
56 [GOK2004] 52 IR 04 31 27.7 +18 06 19           ~ 1 0
57 [GOK2004] 53 IR 04 31 29.0 +18 17 45           ~ 1 0
58 [GOK2004] 54 Y*O 04 31 29.1 +18 18 16           ~ 1 0
59 2MASS J04312927+1808498 PM* 04 31 29.2717777896 +18 08 49.777635300   17.52 16.06     ~ 7 0
60 [GOK2004] 56 Y*O 04 31 29.9 +18 06 10           ~ 1 0
61 LDN 1551 DNe 04 31 30.0 +18 12 30           ~ 805 1
62 [GOK2004] 57 Y*O 04 31 32.1 +18 02 49           ~ 1 0
63 [GOK2004] 58 IR 04 31 33.4 +18 04 57           ~ 1 0
64 2MASS J04313393+1805337 NIR 04 31 33.9709996080 +18 05 33.202012416     23.24     ~ 1 0
65 RAFGL 5123 Y*O 04 31 34.07736 +18 08 04.9020           K3V/M3III 863 0
66 [GOK2004] 60 Y*O 04 31 35.2 +18 01 54           ~ 1 0
67 V* V1213 Tau Or* 04 31 37.5055489536 +18 12 24.383952396           K7 568 0
68 [GOK2004] 62 IR 04 31 37.6 +18 02 58   19.90 18.14     ~ 1 0
69 V* HL Tau Or* 04 31 38.5107609312 +18 13 57.859747968   15.89 14.49 14.39   K5 1424 0
70 IRAS 04287+1807 mul 04 31 38.8 +18 13 57           ~ 796 0
71 2MASS J04313906+1802281 * 04 31 39.0708186456 +18 02 28.113325152   16.5       ~ 3 0
72 V* XZ Tau Or* 04 31 40.0868968022 +18 13 56.642439056     10.40 13.12   M2e+M2e 444 1
73 [GOK2004] 64 Y*O 04 31 40.7 +18 09 03           ~ 1 0
74 [GOK2004] 65 IR 04 31 44.1 +18 10 37           ~ 1 0
75 [GOK2004] 66 Y*O 04 31 44.2 +18 12 38           ~ 1 0
76 2MASS J04314444+1808315 Y*O 04 31 44.44680 +18 08 31.5384           ~ 168 0
77 [GOK2004] 67 IR 04 31 45.0 +18 06 12           ~ 1 0
78 Cl* Melotte 25 VA 634 * 04 31 45.4526611080 +18 14 35.833807752   16.76 16.2 16.18   ~ 7 0
79 [GOK2004] 69 IR 04 31 46.5 +18 06 40           ~ 1 0
80 2MASS J04315558+1810599 * 04 31 55.5920531424 +18 10 59.916068112   20.18 18.33     ~ 1 0
81 2MASS J04315607+1808595 * 04 31 56.0863795704 +18 08 59.442802872   16.8       ~ 3 0
82 [GBA2007] 1355 X 04 31 56.28 +18 13 35.9   20.82 19.48     ~ 2 0
83 GSC 01269-00559 * 04 31 56.4276750528 +18 02 54.237916572   16.5       ~ 3 0
84 [GOK2004] 74 IR 04 31 57.2 +18 17 21     20.50     ~ 1 0
85 [GOK2004] 75 IR 04 31 57.6 +18 11 21           ~ 1 0
86 [GOK2004] 76 IR 04 31 58.9 +18 12 01           ~ 1 0
87 2MASS J04315913+1802524 * 04 31 59.1400151352 +18 02 52.360186236   17.43 16.46     ~ 1 0
88 2MASS J04315915+1810391 * 04 31 59.1609210024 +18 10 39.086145876   16.7       ~ 4 0
89 [GOK2004] 79 IR 04 31 59.5 +18 13 49   21.33 20.10     ~ 1 0
90 GSC 01269-00777 * 04 31 59.8250874840 +18 08 51.650549844   15.4       ~ 3 0
91 [GOK2004] 81 IR 04 32 00.6 +18 12 09           ~ 1 0
92 [GOK2004] 82 IR 04 32 01.0 +18 03 55           ~ 1 0
93 [GOK2004] 84 IR 04 32 01.1 +18 06 01   20.25 18.42     ~ 1 0
94 HH 262 HH 04 32 01.1 +18 11 24           ~ 14 0
95 JCMTSF J043201.4+181232 IR 04 32 01.1 +18 12 33           ~ 2 0
96 2MASS J04320126+1805011 * 04 32 01.26 +18 05 01.1   22.39 20.91     ~ 6 0
97 [GOK2004] 86 IR 04 32 01.3 +18 11 29           ~ 1 0
98 [GOK2004] 87 IR 04 32 01.5 +18 11 59           ~ 1 0
99 2MASS J04320263+1803163 * 04 32 02.6391442248 +18 03 16.270372908   17.0       ~ 2 0
100 GSC 01270-00357 * 04 32 03.5950153776 +18 06 03.704550948   16.9       ~ 4 0
101 VSS XI-7 * 04 32 07.3188390144 +18 14 27.124267632   17.70 16.39     ~ 2 0
102 GSC 01270-01234 * 04 32 07.4245031880 +18 16 28.261668540   16.24       ~ 1 0
103 2MASS J04320765+1809001 * 04 32 07.6630031568 +18 09 00.104847516   16.3       ~ 2 0
104 [GOK2004] 93 IR 04 32 09.5 +18 12 02           ~ 1 0
105 GSC 01270-00401 * 04 32 11.0219712216 +18 17 35.727065412   14.59 13.71 13.70   F1 2 0
106 [GOK2004] 95 Y*O 04 32 13.4 +18 17 51           ~ 1 0
107 2MASS J04321606+1812464 TT* 04 32 16.0659498216 +18 12 46.383640812   19.20 17.595     M6.5 86 0

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