2003A&A...399..433V

Query : 2003A&A...399..433V

2003A&A...399..433V - Astronomy and Astrophysics, volume 399433-439 (2003/2-4)

Non-confirmation of reported H I clouds without optical counterparts in the Hercules cluster.

VAN DRIEL W., O'NEIL K., CAYATTE V., DUC P.-A., DICKEY J.M., BALKOWSKI C., HERNANDEZ H., IGLESIAS-PARAMO J., PAPADEROS P., VILCHEZ J.M. and THUAN T.X.

Abstract (from CDS):

21 cm HI line observations were made with the Arecibo Gregorian telescope of 9 HI clouds in the Hercules Cluster which were reported as tentative detections in a VLA HI study of the cluster (Dickey, 1997AJ....113.1939D) and for which our deep CCD imaging failed to find any optical counterparts. No sensitive observations could be made of one of these (sw-174) due to the presence of a close-by strong continuum source. The other 8 tentative HI detections were not confirmed by the Arecibo HI measurements. The CCD images did reveal faint, low surface brightness counterparts near the centres of two other VLA HI sources invisible on the Palomar Sky Survey, sw-103 and sw-194.

Abstract Copyright: ∼

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: individual: Hercules cluster - galaxies: ISM - radio lines: galaxies

Simbad objects: 20

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Number of rows : 20
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 Scl Group GrG 01 00 06 -33 44.2           ~ 526 0
3 LEDA 2793457 G 10 35 10.1 -28 34 56           ~ 5 0
4 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 905 1
5 NAME M 96 Group GrG 10 46 45 +11 49.1           ~ 330 0
6 NAME HI 1225+01 HI 12 27 19 +01 30.4           ~ 84 1
7 NAME DW 1225+0152 LSB 12 27 46.1 +01 36 01 15.45 16.02 15.92 15.73   ~ 47 0
8 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
9 LEDA 3085066 GiC 16 03 16.2 +16 14 21           ~ 3 0
10 LEDA 3085065 GiC 16 03 16.7 +17 09 46           ~ 3 0
11 NGC 6034 Sy2 16 03 32.08333486 +17 11 55.3098953   15.2       ~ 105 1
12 LEDA 3085062 GiC 16 03 35.6 +17 15 05           ~ 3 0
13 LEDA 3085060 GiC 16 04 09.4 +17 16 41           ~ 3 0
14 LEDA 3085059 GiC 16 04 58.7 +17 30 05           ~ 3 0
15 ACO 2151 ClG 16 05 15.0 +17 44 55           ~ 594 3
16 [D97] ce-137 GiC 16 05 21.5 +17 28 27           ~ 2 0
17 LEDA 3085056 GiC 16 05 29.6 +17 23 58           ~ 3 0
18 IC 1182 rG 16 05 36.7963581312 +17 48 07.422094440   16.20 15.19     ~ 167 0
19 LEDA 3085055 GiC 16 05 41.8 +17 44 59           ~ 3 0
20 LEDA 3097116 G 17 12 35.0 -64 38 11           ~ 15 0

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