2013MNRAS.429.1051C

Query : 2013MNRAS.429.1051C

2013MNRAS.429.1051C - Mon. Not. R. Astron. Soc., 429, 1051-1065 (2013/February-3)

Galaxy Zoo: quantifying morphological indicators of galaxy interaction.

CASTEELS K.R.V., BAMFORD S.P., SKIBBA R.A., MASTERS K.L., LINTOTT C.J., KEEL W.C., SCHAWINSKI K., NICHOL R.C. and SMITH A.M.

Abstract (from CDS):

We use Galaxy Zoo 2 visual classifications to study the morphological signatures of interaction between similar-mass galaxy pairs in the Sloan Digital Sky Survey. We find that many observable features correlate with projected pair separation - not only obvious indicators of merging, disturbance and tidal tails, but also more regular features, such as spiral arms and bars. These trends are robustly quantified, using a control sample to account for observational biases, producing measurements of the strength and separation scale of various morphological responses to pair interaction. For example, we find that the presence of spiral features is enhanced at scales ≲ 70h- 170kpc, probably due to both increased star formation and the formation of tidal tails. On the other hand, the likelihood of identifying a bar decreases significantly in pairs with separations ≲ 30h- 170kpc, suggesting that bars are suppressed by close interactions between galaxies of similar mass.

We go on to show how morphological indicators of physical interactions provide a way of significantly refining standard estimates for the frequency of close pair interactions, based on velocity offset and projected separation. The presence of loosely wound spiral arms is found to be a particularly reliable signal of an interaction, for projected pair separations up to ∼ 100h- 170kpc. We use this indicator to demonstrate our method, constraining the fraction of low-redshift galaxies in truly interacting pairs, with M* > 109.5M☉ and mass ratio <4, to be between 0.4 and 2.7percent.


Abstract Copyright: © 2012 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2012)

Journal keyword(s): galaxies: evolution - galaxies: general - galaxies: interactions - galaxies: structure

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-01-60-021 LIN 23 41 47.285 -03 40 01.90 14.88 14.50 13.57     ~ 95 1

Query : 2013MNRAS.429.1051C

Basic data :
MCG-01-60-021 -- LINER-type Active Galaxy Nucleus
Other object types: otypes_help 		LIN (), G (2016A&A,MCG,...), AGN ([VV2010c]), EmG (2022ApJS), GiG ([CHM2007]), IG (VV), Rad (NVSS), IR (ISOSS), Opt (SDSS), PoG ([HV96])
ICRS coord. (ep=J2000) : 		23 41 47.285 -03 40 01.90 (Infrared) [ ] C 2006AJ....131.1163S
FK4 coord. (ep=B1950 eq=1950) : 		23 39 13.142 -03 56 40.58 [ ]
Gal coord. (ep=J2000) : 		084.568086 -61.238589 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 6846 [~] / z(~) 0.023103 [~] / cz 6925.98 [~]
   D 2007ApJ...655..790C
Morphological type: 		Sc D ~
Angular size (arcmin): 		1.91513 0.502531 40 (Opt) B 2023ApJS..269....3M
Fluxes (11) :
U 14.88 [0.21] D 2007ApJS..173..185G
B 14.50 [0.20] D 2007ApJS..173..185G
V 13.57 [0.21] D 2007ApJS..173..185G
J 11.226 [0.020] C 2006AJ....131.1163S
H 10.391 [0.019] C 2006AJ....131.1163S
K 10.020 [0.031] C 2006AJ....131.1163S
u (AB) 16.793 [0.031] D 2011yCat.2306....0A
g (AB) 14.5193 [0.0089] B 2023ApJS..269....3M
r (AB) 13.5336 [0.0088] B 2023ApJS..269....3M
i (AB) 12.907 [0.002] C 2011yCat.2306....0A
z (AB) 12.5927 [0.0093] B 2023ApJS..269....3M
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1
: 1 		: 3 Display criteria :

Identifiers (20) :
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MCG-01-60-021 ISOSS J23420-0337 RFGC 4168 [CHM2007] LDC 1593 J234147.28-0340018
APG 295A LEDA 72139 SDSS J234147.33-034002.4 [HMS56] Anon 2339.3-0354
APG 295 2MASX J23414728-0340018 VV 34 [HV96] Arp 295 a
6dFGS gJ234147.3-034002 2MFGC 17772 VV 34b [SLK2004] 1900
FGC 2525 NVSS J234146-034008 [CHM2007] HDC 1250 J234147.28-0340018 [VV2010c] J234147.3-034002

References (95 between 1850 and 2026) (Total 95)
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Collections of Measurements Description of Measurements

Velocities : 8    Distance : 3   

   

Observing logs
Herschel : 5   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : MCG-01-60-021

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APG 295A APG 295 FGC 2525 2MASX J23414728-0340018 NVSS J234146-034008
RFGC 4168 SDSS J234147.33-034002.4

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