2004A&A...417L..15C

Query : 2004A&A...417L..15C

2004A&A...417L..15C - Astronomy and Astrophysics, volume 417L15-19 (2004/4-1)

The infrared L'-band view of the Galactic Center with NAOS-CONICA at VLT.

CLENET Y., ROUAN D., GENDRON E., LACOMBE F., LAGRANGE A.-M., ROUSSET G., GENZEL R., SCHOEDEL R., OTT T., ECKART A., MARCO O. and TACCONI-GARMAN L.

Abstract (from CDS):

We report on Galactic Center L'-band observations made during NAOS/CONICA Science Verification. Colors of the inner 2" stars reveal an infrared excess of S2, the closest star to the black hole, that could sign the first thermal infrared detection of Sgr A*. A multi-wavelength maximum likelihood analysis has allowed us to eliminate all but two of the candidates for gravitational lensing proposed by Alexander (2001ApJ...553L.149A). Our observations of the thin and intersecting structures of the Northern Arm could trace several shocks heating the neighbooring dust rather than a stream of matter in orbit around the central mass as previously thought.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: center - Galaxy: stellar content - infrared: stars - instrumentation: adaptive optics - stars: imaging

Nomenclature: Table 1: [CRG2004] NN (Nos 1-22).

CDS comments: OphN9 = [GY92] 232.

Simbad objects: 54

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Number of rows : 54
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 [GY92] 232 Y*? 16 27 13.26240 -24 41 33.7128           ~ 22 0
2 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
3 [OEG99] 198 IR 17 45 39.75 -29 00 26.1           ~ 2 0
4 GCIRS 2 Em* 17 45 39.7540 -29 00 32.880           ~ 69 0
5 [OEG99] 162 IR 17 45 39.85 -29 00 28.2           ~ 2 0
6 [OEG99] 195 IR 17 45 39.85 -29 00 27.6           ~ 2 0
7 [OEG99] 156 IR 17 45 39.87 -29 00 28.0           ~ 2 0
8 [OEG99] 179 IR 17 45 39.90 -29 00 29.9           ~ 2 0
9 GCIRS 29N WR* 17 45 39.917 -29 00 26.71           WC9 61 0
10 GCIRS 33SW * 17 45 39.94 -29 00 31.0           ~ 9 0
11 GCIRS 7 LP* 17 45 39.987 -29 00 22.24           M2 388 0
12 GCIRS 16 Cl* 17 45 40.0 -29 00 28           ~ 387 0
13 [OEG99] 137 IR 17 45 40.01 -29 00 26.2           ~ 2 0
14 [OEG99] 148 IR 17 45 40.01 -29 00 28.8           ~ 2 0
15 GCIRS 33SE Em* 17 45 40.02 -29 00 31.0           Ofpe/WN9 24 0
16 MPE +0.5-06.4 * 17 45 40.03 -29 00 28.5           ~ 3 0
17 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3
18 [EG97] S12 * 17 45 40.0379 -29 00 27.781           B4/9V 72 0
19 GCIRS 33N s*b 17 45 40.0381 -29 00 30.302           B0.5/1I 41 0
20 [EG97] S1 * 17 45 40.0418 -29 00 28.324           B0/2V 99 0
21 [EG97] S2 * 17 45 40.0442 -29 00 27.975           B0/2V 420 1
22 [CRG2004] 12 * 17 45 40.0455 -29 00 28.467           K5III 40 0
23 [OEG99] 212 IR 17 45 40.05 -29 00 27.8           ~ 2 0
24 [EG97] S9 * 17 45 40.0557 -29 00 28.448           B0/2V 56 0
25 [CRG2004] 10 * 17 45 40.0558 -29 00 28.657           O-B 28 0
26 [EG97] S4 * 17 45 40.0636 -29 00 27.968           B0/2V 65 0
27 MPE +1.0-07.6 * 17 45 40.07 -29 00 29.7           ~ 3 0
28 [EG97] S8 * 17 45 40.0716 -29 00 28.363           B0/2V 78 0
29 [EG97] S7 * 17 45 40.0812 -29 00 28.135           B:V 41 0
30 GCIRS 33E WR* 17 45 40.0941 -29 00 31.213           Ofpe/WN9 59 0
31 [OEG99] 124 IR 17 45 40.10 -29 00 30.9           ~ 2 0
32 GCIRS 16C WR* 17 45 40.12 -29 00 27.6           Ofpe/WN9 197 1
33 GCIRS 16SW WR* 17 45 40.1245 -29 00 29.018           Ofpe/WN9 167 0
34 GCIRS 8 * 17 45 40.14 -28 59 58.7           O 72 0
35 [OEG99] 163 IR 17 45 40.16 -29 00 28.2           ~ 2 0
36 GCIRS 16SE1 WR* 17 45 40.181 -29 00 29.26           WC8/9 50 0
37 GCIRS 16CC s*b 17 45 40.1939 -29 00 27.532           O9.5/B0.5I 60 0
38 GCIRS 21 WR* 17 45 40.222 -29 00 30.85           WC9 104 0
39 [OEG99] 151 IR 17 45 40.23 -29 00 27.8           ~ 2 0
40 GCIRS 16NE WR* 17 45 40.26 -29 00 27.2           Ofpe/WN9 156 0
41 GCIRS 1W Em* 17 45 40.442 -29 00 27.51           Be? 109 0
42 [CRG2004] 18 * ~ ~           ~ 2 0
43 [CRG2004] 16 * ~ ~           ~ 2 0
44 [CRG2004] 11 * ~ ~           ~ 2 0
45 [CRG2004] 7 * ~ ~           ~ 2 0
46 [CRG2004] 5 * ~ ~           ~ 2 0
47 [CRG2004] 17 * ~ ~           ~ 2 0
48 [CRG2004] 3 * ~ ~           ~ 2 0
49 [CRG2004] 2 * ~ ~           ~ 3 0
50 [CRG2004] 22 * ~ ~           ~ 2 0
51 [CRG2004] 1 * ~ ~           ~ 3 0
52 [CRG2004] 21 * ~ ~           ~ 2 0
53 [CRG2004] 20 * ~ ~           ~ 2 0
54 [CRG2004] 19 * ~ ~           ~ 2 0

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