2001A&A...376..124C


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.30CET23:39:26

2001A&A...376..124C - Astronomy and Astrophysics, volume 376, 124-135 (2001/9-2)

Adaptive optics L-band observations of the Galactic Center region.

CLENET Y., ROUAN D., GENDRON E., MONTRI J., RIGAUT F., LENA P. and LACOMBE F.

Abstract (from CDS):

L-band adaptive optics observations of the Galactic Center region have been performed in June 1999 and May 2000 at La Silla with the 3.6 m telescope, using the ADONIS adaptive optics system. In June 1999, we used a dedicated infrared wave-front sensor, RASOIR. This paper reports on the photometry and astrometry of more than 40 stars. Thanks to additional adaptive optics K-band observations made at CFHT, colour-magnitude diagrams have been constructed to identify individual sources with various types of stars known in this region (AGB, LPV, WC9, WN9/WN10, Ofpe/WN9, YSO). The so-called ``cool slash" stars (Ofpe/WN9) appear to be numerous in the field and an estimation of the extinction coefficient towards the Galactic Center from the colours of these intrinsically weakly absorbed stars leads to AK=2.7, which is among the lowest published values.

Abstract Copyright:

Journal keyword(s): instrumentation: adaptive optics - Galaxy: center - infrared: stars - extinction - stars: population

Nomenclature: Table 2: [CRG2001b] NNa (Nos 1-44, 26b-26c).

Simbad objects: 69

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Number of rows : 69

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 CD-26 5 * 00 07 03.0154431805 -25 36 04.043645166   11.00 9.48     ~ 2 0
2 RAFGL 490 Y*O 03 27 38.7928323987 +58 47 00.017662871           ~ 341 0
3 V* V2254 Ori Or* 05 35 14.11296 -05 22 22.7316           B 291 2
4 NAME Mon R2 IRS 3 Y*O 06 07 47.8 -06 22 55           ~ 134 0
5 NAME SH 2-255 IRS 1 Y*O 06 12 54.0060 +17 59 22.958           ~ 319 0
6 IC 2162 HII 06 13 04.1 +17 58 44           ~ 339 2
7 RAFGL 961 Y*O 06 34 37.741 +04 12 44.20           ~ 236 1
8 RAFGL 989 Y*O 06 41 10.1592954288 +09 29 33.635497596   17.4 16.8 18.26 17.28 B2 243 0
9 * phi02 Lup * 15 23 09.3500506 -36 51 30.552048 3.77 4.39 4.54 4.60 4.74 B4V 122 0
10 HD 152751 Er* 16 55 28.75758 -08 20 10.7876 11.647 10.593 9.023 7.937 6.565 M3.5Ve 486 1
11 GCIRS 6E WR* 17 45 39.632 -29 00 27.05           Ofpe/WN9 60 0
12 GCIRS 2S * 17 45 39.69 -29 00 32.5           ~ 16 0
13 GCIRS 13E Cl* 17 45 39.73 -29 00 29.7           WN9 100 0
14 GCIRS 34W WR* 17 45 39.73 -29 00 26.6           Ofpe/WN9 54 0
15 [CRG2001b] 39 * 17 45 39.74 -29 00 33.8           ~ 1 0
16 GCIRS 13 Em* 17 45 39.76 -29 00 29.8           ~ 130 0
17 GCIRS 2L * 17 45 39.778 -29 00 32.11           ~ 22 0
18 GCIRS 13W * 17 45 39.78 -29 00 30.5           M0III 19 0
19 GCIRS 3 * 17 45 39.80 -29 00 23.9           ~ 141 0
20 GCIRS 13E2 WR* 17 45 39.8006 -29 00 29.819           WN8 40 0
21 GCIRS 13N * 17 45 39.812 -29 00 29.16           ~ 35 0
22 GCIRS 13E1 s*b 17 45 39.8166 -29 00 29.730           B0/1I 31 0
23 GCIRS 12N * 17 45 39.86 -29 00 35.7           M0III 55 0
24 GCIRS 7W WR* 17 45 39.86 -29 00 22.2           WC9 35 0
25 MPE -1.2-07.2 * 17 45 39.90 -29 00 29.3           ~ 2 0
26 GCIRS 29N WR* 17 45 39.917 -29 00 26.71           WC9 53 0
27 GCIRS 33SW * 17 45 39.94 -29 00 31.0           ~ 8 0
28 MPE -0.6-11.9 * 17 45 39.95 -29 00 34.1           ~ 2 0
29 GCIRS 7 * 17 45 39.987 -29 00 22.24           M2 347 0
30 GCIRS 16 Cl* 17 45 40.0 -29 00 28           ~ 310 0
31 GCIRS 20 * 17 45 40.01 -29 00 33.9           M7III 20 0
32 GCIRS 33SE Em* 17 45 40.02 -29 00 31.0           Ofpe/WN9 24 0
33 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 3517 3
34 GCIRS 33N s*b 17 45 40.0381 -29 00 30.302           B0.5/1I 36 0
35 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11766 0
36 GCIRS 16NW WR* 17 45 40.0451 -29 00 26.847           Ofpe/WN9 127 0
37 MPE +1.0-07.6 * 17 45 40.07 -29 00 29.7           ~ 3 0
38 [CRG2001b] 27 * 17 45 40.09 -29 00 29.8           ~ 1 0
39 MPE +1.4-12.2 * 17 45 40.10 -29 00 34.3           ~ 4 0
40 GCIRS 16SWW IR 17 45 40.11 -29 00 29.4           ~ 5 0
41 GCIRS 16C WR* 17 45 40.12 -29 00 27.6           Ofpe/WN9 167 1
42 GCIRS 16SW WR* 17 45 40.1245 -29 00 29.018           Ofpe/WN9 143 0
43 GCIRS 16SE1 WR* 17 45 40.181 -29 00 29.26           WC8/9 41 0
44 GCIRS 16CC s*b 17 45 40.1939 -29 00 27.532           O9.5/B0.5I 51 0
45 GCIRS 21 WR* 17 45 40.222 -29 00 30.85           WC9 94 0
46 GCIRS 35E * 17 45 40.23 -29 00 29.1           ~ 2 0
47 MPE +3.4-08.2 * 17 45 40.25 -29 00 30.3           ~ 2 0
48 GCIRS 35W WR* 17 45 40.26 -29 00 29.3           WN5/6 41 0
49 GCIRS 16NE WR* 17 45 40.26 -29 00 27.2           Ofpe/WN9 140 0
50 GCIRS 7SE * 17 45 40.2638 -29 00 24.703           ~ 19 0
51 [CRG2001b] 37 * 17 45 40.28 -29 00 33.2           ~ 1 0
52 GCIRS 7E * 17 45 40.38 -29 00 22.9           ~ 8 0
53 GCIRS 1W Em* 17 45 40.442 -29 00 27.51           Be? 97 0
54 GCIRS 9 LP* 17 45 40.447 -29 00 34.49           M3III 101 0
55 GCIRS 1C * 17 45 40.51 -29 00 27.1           ~ 3 0
56 GCIRS 1NE3 * 17 45 40.53 -29 00 26.9           M0III 4 0
57 GCIRS 10W * 17 45 40.5305 -29 00 23.001           ~ 44 0
58 [CRG2001b] 20 * 17 45 40.58 -29 00 28.5           ~ 1 0
59 GCIRS 1NE * 17 45 40.626 -29 00 26.55           M3III 19 0
60 MPE -1.4-02.8 * 17 45 43.76 -29 00 26.8           ~ 2 0
61 GCIRS 29NE * 17 45 43.77 -29 00 27.4           ~ 6 0
62 [CRG2001b] 40 * 17 45 44.05 -29 00 35.3           ~ 1 0
63 NAME M 8E IR Y*O 18 04 53.9 -24 26 41           ~ 81 0
64 W 33a Y*O 18 14 39.0 -17 52 03           ~ 588 0
65 Ross 154 Er* 18 49 49.3638007809 -23 50 10.453568573 13.528 12.19 10.43 10.23 7.703 M3.5Ve 325 0
66 RAFGL 2591 Y*O 20 29 25.03656 +40 11 20.3316           ~ 571 0
67 HD 210918 PM* 22 14 38.65336 -41 22 53.9866 7.02 6.88 6.23     G2V 179 0
68 NAME SH 2-140 IRS 1 Y*O 22 19 18.277 +63 18 45.82           ~ 192 0
69 IRAS 23118+6110 Y*O 23 14 01.63 +61 27 20.2           ~ 346 0

    Equat.    Gal    SGal    Ecl

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2020.10.30-23:39:27

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