2008AJ....135..479B


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.16CEST17:12:26

2008AJ....135..479B - Astron. J., 135, 479-495 (2008/February-0)

A SINFONI view of galaxy centers: morphology and kinematics of five nuclear star formation-rings.

BOKER T., FALCON-BARROSO J., SCHINNERER E., KNAPEN J.H. and RYDER S.

Abstract (from CDS):

We present near-infrared (H- and K-band) integral-field observations of the circumnuclear star formation rings in five nearby spiral galaxies. The data, obtained at the Very Large Telescope with the SINFONI spectrograph, are used to construct maps of various emission lines that reveal the individual star forming regions ("hot spots") delineating the rings. We derive the morphological parameters of the rings, and construct velocity fields of the stars and the emission line gas. We propose a qualitative, but robust, diagnostic for relative hot spot ages based on the intensity ratios of the emission lines Brγ, He I, and [Fe II]. Application of this diagnostic to the data presented here provides tentative support for a scenario in which star formation in the rings is triggered predominantly at two well-defined regions close to, and downstream from, the intersection of dust lanes along the bar with the inner Lindblad resonance.

Abstract Copyright:

Journal keyword(s): galaxies: individual (NGC 613, NGC 5248, IC 1438, NGC 1079, NGC 1300) - galaxies: ISM - galaxies: kinematics and dynamics - galaxies: nuclei

Simbad objects: 9

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Number of rows : 9

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 613 AGN 01 34 18.235 -29 25 06.56   10.77 12.71 9.50 10.6 ~ 363 3
2 M 77 GiP 02 42 40.771 -00 00 47.84 9.70 9.61 8.87 10.1 9.9 ~ 4204 2
3 NGC 1079 GiG 02 43 44.3348134245 -29 00 11.773098961   12.17 11.37 10.86 11.5 ~ 127 0
4 NGC 1300 GiP 03 19 41.0453355271 -19 24 40.141850719   11.16 10.42 9.90 10.7 ~ 460 0
5 M 100 AGN 12 22 54.9318850854 +15 49 20.294302163 10.04 10.05 9.35     ~ 1692 2
6 NGC 5248 GiG 13 37 32.069 +08 53 06.22   11.4       ~ 462 0
7 IC 1438 EmG 22 16 29.106 -21 25 50.62   12.63   11.57   ~ 75 0
8 NGC 7469 Sy1 23 03 15.674 +08 52 25.28 12.60 13.00 12.34     ~ 1926 3
9 NGC 7771 GiG 23 51 24.880 +20 06 42.57 13.42 13.08 12.25     ~ 317 4

    Equat.    Gal    SGal    Ecl

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