2007ApJ...670L..97E


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.16CEST20:14:00

2007ApJ...670L..97E - Astrophys. J., 670, L97-L100 (2007/December-1)

Variation of Galactic bar length with amplitude and density as evidence for bar growth over a Hubble time.

ELMEGREEN B.G., ELMEGREEN D.M., KNAPEN J.H., BUTA R.J., BLOCK D.L. and PUERARI I.

Abstract (from CDS):

Ks-band images of 20 barred galaxies show an increase in the peak amplitude of the normalized m=2 Fourier component with the R25-normalized radius at this peak. This implies that longer bars have higher m=2 amplitudes. The long bars also correlate with an increased density in the central parts of the disks, as measured by the luminosity inside 0.25R25 divided by the cube of this radius in kpc. Because denser galaxies evolve faster, these correlations suggest that bars grow in length and amplitude over a Hubble time, with the fastest evolution occurring in the densest galaxies. All but three of the sample have early-type flat bars; there is no clear correlation between the correlated quantities and the Hubble type.

Abstract Copyright:

Journal keyword(s): Galaxies: Spiral - Galaxies: Structure

Simbad objects: 21

goto Full paper

goto View the reference in ADS

Number of rows : 21

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 NGC 175 G 00 37 21.521 -19 56 03.29   12.95   11.73 12.4 ~ 88 0
2 NGC 521 LSB 01 24 33.770 +01 43 53.27   12.5   12.3 12.0 ~ 103 0
3 NGC 613 AGN 01 34 18.235 -29 25 06.56   10.77 12.71 9.50 10.6 ~ 363 3
4 NGC 986 EmG 02 33 34.349 -39 02 42.21 11.72 11.74 10.91 10.10 11.3 ~ 172 1
5 NGC 4593 Sy1 12 39 39.4435521178 -05 20 39.035028119   13.95 13.15     ~ 976 0
6 NGC 5101 G 13 21 46.242 -27 25 49.87   11.26 10.47 9.87 10.5 ~ 171 0
7 IC 4290 G 13 35 19.5805746954 -28 01 18.462769718   14.24   13.51 13.2 ~ 43 0
8 NGC 5335 GiG 13 52 56.556 +02 48 51.40   14.5       ~ 40 0
9 NGC 5365 GiG 13 57 50.632 -43 55 52.89   12.20 11.14 10.57   ~ 56 0
10 NGC 6221 Sy2 16 52 46.329 -59 13 00.99   10.90 13.45 9.68 10.4 ~ 284 0
11 UGC 10862 G 17 28 08.935 +07 25 20.74   15.00       ~ 63 1
12 NGC 6782 GiG 19 23 57.935 -59 55 21.04   12.70 11.84 11.27 11.7 ~ 114 1
13 NGC 6907 G 20 25 06.9 -24 48 38   11.91 11.30 10.47 11.3 ~ 160 2
14 IC 5092 GiG 21 16 14.5037331861 -64 27 52.588996256   12.78   11.54 11.9 ~ 36 0
15 NGC 7155 GiG 21 56 09.7201886163 -49 31 19.148482882   13.01 11.83 11.54   ~ 44 0
16 IC 1438 EmG 22 16 29.106 -21 25 50.62   12.63   11.57   ~ 75 0
17 NGC 7329 GiG 22 40 24.199 -66 28 44.58   12.51 11.31 11.07 11.7 ~ 86 0
18 NGC 7513 GiG 23 13 14.0668979645 -28 21 27.280872769   12.73   11.40   ~ 78 0
19 NGC 7552 GiP 23 16 10.767 -42 35 05.39 11.34 11.22 10.57 10.08 11.1 ~ 515 3
20 NGC 7582 GiP 23 18 23.621 -42 22 14.06 11.62 10.92 10.62     ~ 827 2
21 NAME Galactic Bar reg ~ ~           ~ 979 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2007ApJ...670L..97E and select 'bookmark this link' or equivalent in the popup menu


2021.05.16-20:14:00

© Université de Strasbourg/CNRS

    • Contact