2007MNRAS.376...98C


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.18CEST16:20:24

2007MNRAS.376...98C - Mon. Not. R. Astron. Soc., 376, 98-112 (2007/March-3)

HI and CO observations of Arp 104: a spiral-elliptical interacting pair.

CULLEN H., ALEXANDER P., GREEN D.A. and SHETH K.

Abstract (from CDS):

We present data probing the spatial and kinematical distribution of both the atomic (Hi) and molecular (CO) gas in NGC 5218, the late-type barred spiral galaxy in the spiral-elliptical interacting pair, Arp 104. We consider these data in conjunction with far-infrared and radio-continuum data, and N-body simulations, to study the galaxies interactions, and the star formation properties of NGC 5218. We use these data to assess the importance of the bar and tidal interaction on the evolution of NGC 5218, and the extent to which the tidal interaction may have been important in triggering the bar. The molecular gas distribution of NGC 5218 appears to have been strongly affected by the bar; the distribution is centrally condensed with a very large surface density in the central region. The N-body simulations indicate a time-scale since perigalacticon of ∼3x108 yr, which is consistent with the interaction having triggered or enhanced the bar potential in NGC 5218, leading to inflow and the large central molecular gas density observed. Whilst NGC 5218 appears to be undergoing active star formation, its star formation efficiency is comparable to a `normal' SBb galaxy. We propose that this system may be on the brink of a more active phase of star formation.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): galaxies: individual: NGC 5218 - galaxies: interactions - galaxies: ISM - radio lines: galaxies

Simbad objects: 18

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Number of rows : 18

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 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11312 1
2 NGC 520 IG 01 24 35.071 +03 47 32.68 12.41 12.24 11.42     ~ 498 3
3 M 33 GiG 01 33 50.904 +30 39 35.79 6.17 6.27 5.72     ~ 5293 1
4 3C 48 QSO 01 37 41.2995845985 +33 09 35.079126038   16.62 16.20     ~ 2585 2
5 3C 84 Sy2 03 19 48.1597607660 +41 30 42.114155434   13.10 12.48 11.09   ~ 3643 3
6 UGC 2855 H2G 03 48 20.731 +70 07 58.37   14.6       ~ 125 2
7 IC 819 AGN 12 46 10.060 +30 43 54.64           ~ 257 1
8 NGC 4676 IG 12 46 10.18 +30 43 53.7   14.1       ~ 298 0
9 IC 820 AGN 12 46 11.2492024659 +30 43 21.853173446   14.1       ~ 109 1
10 ICRF J131327.9+673550 G 13 13 27.9889603 +67 35 50.359991           ~ 53 1
11 M 51 GiP 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 3927 4
12 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825107   17.51 17.25     ~ 3866 2
13 NGC 5216 GiP 13 32 06.9096470880 +62 42 02.417160507   16.80 16.14     ~ 112 0
14 NGC 5218 GiP 13 32 10.4287653669 +62 46 04.126116981   13.1       ~ 148 1
15 NAME Keenan's System GrG 13 32.2 +62 44           ~ 72 0
16 ICRF J140028.6+621038 Sy2 14 00 28.6484960 +62 10 38.588791   22.137 20.373 19.530   ~ 165 1
17 ICRF J163813.4+572023 Sy1 16 38 13.45629705 +57 20 23.9790727     17.0 16.94   ~ 323 1
18 MCG-01-60-021 LIN 23 41 47.285 -03 40 01.90 14.88 14.50 13.57     ~ 85 1

    Equat.    Gal    SGal    Ecl

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