2001A&A...377..745G


Query : 2001A&A...377..745G

2001A&A...377..745G - Astronomy and Astrophysics, volume 377, 745-758 (2001/10-3)

The velocity field of UGC 6697 revisited.

GAVAZZI G., MARCELIN M., BOSELLI A., AMRAM P., VILCHEZ J.M., IGLESIAS-PARAMO J. and TARENGHI M.

Abstract (from CDS):

The edge-on galaxy UGC 6697 has a peculiar morphological appearance: a high surface brightness SE component and what appears to be a tidal tail with blue color and low surface brightness extending toward the NW, as dramatically evidenced in subarcsecond broad band images taken with the VLT and in a deep Hα frame. Long-slit spectroscopy shows a 500km/s rigid-body rotation curve with a sudden central velocity jump, of more than 200km/s amplitude. Fabry-Perot observations of the Hα emission line enable us to trace a detailed 2D velocity field, confirming the complex kinematical behaviour, particularly in the circumnuclear region where multiple velocity components are clearly superposed on the same line of sight. This region hosts a double nucleus and shows sudden color and metallicity gradients, which can be reconciled with the complex velocity field assuming the presence of a second galaxy hidden behind the main body of UGC 6697.

Abstract Copyright:

Journal keyword(s): galaxies: individual: UGC 6697 - galaxies: interactions - kinematics and dynamics

Nomenclature: Fig.1: [GTJ84] AN (No. R4) added. Table 6: [GTJ84] ANN (No. C12) added.

Simbad objects: 15

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Number of rows : 15
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 [GTJ84] B114114+201515 G 11 43 48.220 +19 58 30.56 19.57 19.42   18.15   ~ 4 1
2 UGC 6697 GiG 11 43 49.1088652488 +19 58 05.954438316 13.96 14.35 13.59 13.29   ~ 227 3
3 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1078 1
4 [GTJ84] C2 HII ~ ~           ~ 4 0
5 [GTJ84] B1 PoG ~ ~           ~ 3 0
6 [GTJ84] B2 PoG ~ ~           ~ 3 0
7 [GTJ84] A2 PoG ~ ~           ~ 2 0
8 [GTJ84] A1 HII ~ ~           ~ 3 0
9 [GTJ84] R2 PoG ~ ~           ~ 2 0
10 [GTJ84] R3 PoG ~ ~           ~ 2 0
11 [GTJ84] R4 PoG ~ ~           ~ 1 0
12 [GTJ84] C12 PoG ~ ~           ~ 1 0
13 [GTJ84] R1 PoG ~ ~           ~ 2 0
14 [GTJ84] A4 HII ~ ~           ~ 4 0
15 [GTJ84] C1 HII ~ ~           ~ 3 0

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