1996A&A...307..391P


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.15CEST08:00:50

1996A&A...307..391P - Astronomy and Astrophysics, volume 307, 391-402 (1996/3-2)

Extended ionized gas in elliptical galaxies. I. Multicomponents in NGC 1052 and NGC 7332.

PLANA H. and BOULESTEIX J.

Abstract (from CDS):

A number of elliptical galaxies possess an extended gaseous disk usually detected in [OIII]5007A, Hα or [NII]6583A emission lines. 3-D scanning Perot-Fabry observations of two of these objects, NGC 1052 and NGC 7332, show multiple profiles of the ionized faint and extended gas. We separate clearly two extended gaseous components in both galaxies where gas kinematics is largely decoupled from stellar one. Several gas systems, kinematically decoupled and possibly located in different basic planes of the ellipsoids, could be related to different external origins. We used gas kinematics to constraint the triaxial shape of these galaxies. Both present a typical gaseous disk which may lie in an allowed preferred plane of the ellipsoid. But there is no clear coherence between dynamical parameters derived separately from the gaseous disks. Different hypothesis, in which one component is not definitively stable, are presented. They suppose that successive mergers occurred within a relatively small time scale.

Abstract Copyright:

Journal keyword(s): galaxies: elliptical and lenticular - kinematics and dynamics: individual: NGC 1052, NGC 7332

Simbad objects: 6

goto View the reference in ADS

Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME Cet I GrG 02 28.2 -01 21           ~ 8 0
2 NGC 1042 GiP 02 40 23.9725496856 -08 26 00.749394900 11.47 11.56 11.02 11.7 11.4 ~ 230 1
3 NGC 1052 GiP 02 41 04.79851 -08 15 20.7517 11.84 11.41 10.47 10.71   ~ 1178 2
4 NGC 5077 GiP 13 19 31.66964077 -12 39 25.0754790   13.87 12.85 11.30   ~ 277 0
5 NGC 7332 GiP 22 37 24.522 +23 47 54.06   12.0       ~ 358 0
6 NGC 7339 rG 22 37 46.890 +23 47 12.02   13.1       ~ 123 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 1996A&A...307..391P and select 'bookmark this link' or equivalent in the popup menu


2021.04.15-08:00:50

© Université de Strasbourg/CNRS

    • Contact