1998AJ....116.1690C

Query : 1998AJ....116.1690C

1998AJ....116.1690C - Astron. J., 116, 1690-1700 (1998/October-0)

Detection of H I associated with the Sculptor dwarf spheroidal galaxy.

CARIGNAN C., BEAULIEU S., COTE S., DEMERS S. and MATEO M.

Abstract (from CDS):

Neutral hydrogen (H I) has been detected in the Local Group dwarf spheroidal galaxy Sculptor with the 64 m Parkes single-dish telescope and mapped with the Australia Telescope synthesis array. Most of the detected H I is in two clouds ∼15'-20' away from the optical center. The gas is observed at the same systemic velocity as the stars, but at ≥125 km.s–1 away from the Magellanic Stream components in that region. A lower limit to the H I mass of 3.0x104 M☉ is derived from the synthesis observation for an (M_H I_/LB) ≃ 0.02. This amount of H I is compatible with mass loss expected from normal giants, even if only 10% of the gas is retained by the galaxy in its neutral form.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Dwarf - Galaxies: Individual: Alphanumeric: Sculptor - ISM: H I - Galaxies: Local Group - Techniques: Interferometric

CDS comments: Calibrator PKS 0042-442 not identified

Simbad objects: 27

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Number of rows : 27
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 Magellanic Stream HVC 00 32 -30.0           ~ 1079 1
2 NAME Andromeda III G 00 35 33.8 +36 29 52     14.4     ~ 309 0
3 NGC 185 Sy2 00 38 57.9400026024 +48 20 15.035874648   9.10 9.2     ~ 840 1
4 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1370 1
5 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
6 NAME Andromeda I G 00 45 39.8 +38 02 28   13.9 12.7     ~ 355 0
7 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1498 4
8 NAME Phoenix Dwarf Galaxy Sy1 01 51 06.3 -44 26 41   13.48 13.2 12.69   ~ 575 2
9 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
10 ICRF J040820.3-654509 Sy2 04 08 20.37884 -65 45 09.0806     18.0     ~ 207 1
11 ESO 206-20A G 06 41 36.7 -50 57 58   22.14 11.0 19.47   ~ 1190 0
12 NAME M 81 Dwarf A G 08 23 55.1 +71 01 56   16.5       ~ 209 1
13 Z 332-57 LSB 09 40 32.33 +71 10 56.0 14.53 14.00 13.66 13.41   ~ 372 1
14 Z 153-10 G 09 59 26.46 +30 44 47.0 14.08 13.54 13.26 13.33   ~ 652 0
15 NAME Antlia Dwarf Galaxy G 10 04 03.9 -27 20 01 16.73 15.69 15.17 15.00   ~ 221 1
16 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
17 MCG-01-26-030 H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 789 2
18 NAME Sextans dSph LSB 10 13 02.9 -01 36 53   12 10.4     ~ 921 0
19 IC 2574 AG? 10 28 23.6148831408 +68 24 43.440012756 11.70 11.07 10.87 10.74   ~ 703 1
20 Z 126-111 G 11 13 28.13 +22 09 10.1   12.9 12.0     ~ 899 0
21 Z 318-18 G 15 09 08.0 +67 13 21   13.60 10.6     ~ 1459 0
22 Z 300-12 G 17 20 14.335 +57 55 16.39   12.40 10.6     ~ 1428 1
23 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2
24 ICRF J193925.0-634245 Sy2 19 39 25.0245304992 -63 42 45.640373400   18.87 18.37 17.64   ~ 1332 2
25 NAME Tuc Galaxy G 22 41 49.6 -64 25 10   15.7 15.2     ~ 324 0
26 NAME Local Group GrG ~ ~           ~ 9325 0
27 NAME Tucana HI Cloud HVC ~ ~           ~ 2 0

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