2012MNRAS.427L..99W

Query : 2012MNRAS.427L..99W

2012MNRAS.427L..99W - Mon. Not. R. Astron. Soc., 427, L99-L103 (2012/November-3)

Secular evolution in action: central values and radial trends in the stellar populations of boxy bulges.

WILLIAMS M.J., BUREAU M. and KUNTSCHNER H.

Abstract (from CDS):

We determine central values and radial trends in the stellar populations of the bulges of a sample of 28 edge-on S0–Sb disc galaxies, 22 of which are boxy/peanut-shaped (and therefore barred). Our principal findings are the following. (1) At a given velocity dispersion, the central stellar populations of galaxies with boxy/peanut-shaped bulges are indistinguishable from those of early-type (elliptical and S0) galaxies. Either secular evolution affects stellar populations no differently to monolithic collapse or mergers, or secular evolution is not important in the central regions of these galaxies, despite the fact that they are barred. (2) The radial metallicity gradients of boxy/peanut-shaped bulges are uncorrelated with velocity dispersion and are, on average, shallower than those of unbarred early-type galaxies. This is qualitatively consistent with chemodynamical models of bar formation, in which radial inflow and outflow smear out pre-existing gradients.

Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society2012 RAS

Journal keyword(s): galaxies: abundances - galaxies: bulges - galaxies: elliptical and lenticular, cD - galaxies: spiral

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 MCG-03-53-005 GiG 20 48 14.7948630048 -19 50 57.268042908   15.41   13.29   ~ 60 0

Query : 2012MNRAS.427L..99W

Basic data :
MCG-03-53-005 -- Galaxy towards a Group of Galaxies
Other object types: otypes_help 		G (2016A&A,ESO,...), GiG (dCAZ94,HCG,...), * (Gaia)
ICRS coord. (ep=J2000) : 		20 48 14.7948630048 -19 50 57.268042908 (Optical) [ 1.7934 1.0588 90 ] C 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		20 45 22.9151531148 -20 02 04.116047989 [ 1.7934 1.0588 90 ]
Gal coord. (ep=J2000) : 		026.4738049970795 -34.2807935042797 [ 1.7934 1.0588 90 ]
Radial velocity / Redshift / cz : 		V(km/s) 8694 [35] / z(spectroscopic) 0.029433 [0.000117] / cz 8823.80 [35.00]
   C 1992ApJ...399..353H
Morphological type: 		Sb: D ~
Angular size (arcmin): 		1.130 0.271 55 (NIR) C 2006AJ....131.1163S
Fluxes (6) :
B 15.41 [~] E 1989ApJS...70..687H
R 13.29 [~] E 1989ApJS...70..687H
G 19.940229 [0.018774] C 2020yCat.1350....0G
J 11.410 [0.026] C 2006AJ....131.1163S
H 10.577 [0.031] C 2006AJ....131.1163S
K 10.275 [0.033] C 2006AJ....131.1163S
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 4 : 6 Display criteria :

Identifiers (14) :
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ESO 597-36 HCG 87a 2MFGC 15760 [KK2000] 63C
dCAZ94 HCG 87-01 LEDA 65415 SGC 204523-2002.0 Gaia DR3 6857276786872588160
dCAZ94 HCG 87-01a 2MASX J20481480-1950571 [CHM2007] HDC 1127 J204814.80-1950571
6dFGS gJ204814.8-195057 MCG-03-53-005 [CHM2007] LDC 1424 J204814.80-1950571

References (60 between 1850 and 2026) (Total 60)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 7    Distance : 1   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : MCG-03-53-005

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2MASX J20481480-1950571 Gaia DR3 6857276786872588160

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