1999ApJ...516L..69P

Query : 1999ApJ...516L..69P

1999ApJ...516L..69P - Astrophys. J., 516, L69-L72 (1999/May-2)

Detection and velocities of Hα emission regions in Stephan's quintet.

PLANA H., MENDES DE OLIVEIRA C., AMRAM P., BOLTE M., BALKOWSKI C. and BOULESTEIX J.

Abstract (from CDS):

We present observations of Hα emission of Stephan's Quintet obtained with a scanning Fabry-Perot interferometer and samplings of ∼11 km.s–1 and ∼ 1". Our observations show an intragroup arclike feature formed of bright Hα knots and diffuse gas distributed along tidal tails associated with NGC 7318B and possibly also NGC 7318A. New velocities for 23 emitting regions detected along the Hα structure are presented. South of NGC 7318B, along a path covering ∼12 h–175 kpc, H II regions with velocities ranging from 5540 to 6700 km.s–1 are detected, suggesting that two or more overlapping tidal tails and/or a bow-shock region may have been formed through several interaction events within the group.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Individual NGC Number:: NGC 7318A - Galaxies: Individual: NGC Number: NGC 7318B - Galaxies: Individual: NGC Number: NGC 7319 - Galaxies: Interactions - Galaxies: ISM - Instrumentation: Interferometers

Nomenclature: Table 1: [PMA99b] NN (Nos 1-23).

Simbad objects: 30

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Number of rows : 30
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 NGC 7317 Sy2 22 35 51.8681746944 +33 56 41.758033380 15.10 14.57 13.60 12.72   ~ 182 1
2 NGC 7318A GiP 22 35 56.70407 +33 57 55.7710   14.4   13.13   ~ 140 0
3 NAME Stephan's Quintet CGG 22 35 57.5 +33 57 36           ~ 480 1
4 NGC 7318B GiP 22 35 58.3903354632 +33 57 57.827617524   14.06   12.47   ~ 144 0
5 NGC 7320 GiG 22 36 03.4059680280 +33 56 53.623460220 13.12 13.23 12.63 12.38   ~ 204 3
6 NGC 7319 Sy2 22 36 03.602 +33 58 33.18   14.57 13.53 12.65   ~ 325 0
7 [A73] B9 HII ~ ~           ~ 3 0
8 [A73] B8 HII ~ ~           ~ 3 0
9 [A73] B4 HII ~ ~           ~ 5 0
10 [A73] B3 HII ~ ~           ~ 4 0
11 [A73] B15 HII ~ ~           ~ 4 0
12 [A73] B16 HII ~ ~           ~ 4 0
13 [A73] B17 HII ~ ~           ~ 4 0
14 [A73] B18 HII ~ ~           ~ 4 0
15 [A73] B14 HII ~ ~           ~ 3 0
16 [A73] B13 HII ~ ~           ~ 5 0
17 [GCH2001] 117 EmO ~ ~           ~ 4 0
18 [PMA99b] 1 EmO ~ ~           ~ 4 0
19 [PMA99b] 4 EmO ~ ~           ~ 3 0
20 [PMA99b] 7 EmO ~ ~           ~ 3 0
21 [PMA99b] 8 EmO ~ ~           ~ 4 0
22 [PMA99b] 9 EmO ~ ~           ~ 3 0
23 [PMA99b] 16 EmO ~ ~           ~ 4 0
24 [PMA99b] 17 EmO ~ ~           ~ 4 0
25 [PMA99b] 22 EmO ~ ~           ~ 4 0
26 [A73] B11 HII ~ ~           ~ 5 0
27 [A73] B10 HII ~ ~           ~ 5 0
28 [MMS98] AR1 PoG ~ ~           ~ 5 0
29 [A73] B7 PoG ~ ~           ~ 4 0
30 [MMS98] BR2 PoG ~ ~           ~ 2 0

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