CDS

2007A&A...476L..21P

Query : 2007A&A...476L..21P

2007A&A...476L..21P - Astronomy and Astrophysics, volume 476, L21-24 (2007/12-4)

First detection of a minor merger at z ∼0.6.

PUECH M., HAMMER F., FLORES H., NEICHEL B., YANG Y. and RODRIGUES M.

Abstract (from CDS):

Numerical simulations predict that minor mergers are an important channel for the mass assembly of galaxies. However, minor mergers are relatively difficult to detect using imaging, especially at high redshift. While such events are much less violent than major mergers, they can nevertheless leave several features on the kinematical structures of remnant galaxies which could be detected using 3D spectroscopy. We present the first direct detection of a minor merger in a z∼0.6 galaxy. Such events could indeed be good candidates to explain the kinematics of perturbed rotating disks observed with GIRAFFE at z∼0.6.We present photometric and kinematical evidence of such an event in a combined analysis of three-band HST/ACS imaging and VLT/GIRAFFE 2D-kinematics.Using these data, we are able to demonstrate that a minor merger of a relatively small satellite (mass ratio ∼1:18) is occurring in this galaxy. We also derive a total SFR of ∼21M☉/yr. Minor mergers could be one of the physical processes explaining the kinematics of perturbed rotating disks, which represent ∼25% of emission line intermediate mass galaxies at z∼0.6. 3D spectroscopy appears to be a very good tool to identify minor mergers in distant (and local) galaxies.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: evolution - Galaxy: kinematics and dynamics - galaxies: high-redshift - galaxies: general - galaxies: interactions - 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 - 2023 		#notes
1 GOODS-MUSIC 16097 G 03 32 26.237 -27 42 22.77   22.7914 22.243 21.8196 21.3701 ~ 24 0

Query : 2007A&A...476L..21P

Basic data :
GOODS-MUSIC 16097 -- Galaxy
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types: 		G (2011ApJ,GOODS,...), FIR (2011A&A), IR (2011A&A)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) : 		03 32 26.237 -27 42 22.77 (Optical) [ ] C 2011ApJ...743..146C
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) : 		03 30 20.561 -27 52 28.23 [ ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) : 		223.398096 -54.428569 [ ]
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz : 		V(km/s) 141349 [~] / z(spectroscopic) 0.66860 [~] / cz 200441.2 [~]
   (Opt) D 2018A&A...611A..53J
Syntax of morphological type is : mtype quality bibcode
  • mtype : Hubble morphological class (spirals, ellipticals, etc)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the morphological type reference
Morphological type: 		S D 2014ApJ...794..156R
Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode"
  • maj-axis : major axis size (arc minutes)
  • min-axis : minor axis size (arc minutes)
  • angle : orientation angle (in degrees)
  • (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam)
  • quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the angular size reference
Angular size (arcmin): 		0.0342 0.0202 6 (Opt) D 2004A&A...421..913W
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (10) :
B (AB) 22.7914 [0.0202] C 2013A&A...559A..14L
V (AB) 22.243 [0.009] B 2011ApJ...743..146C
R (AB) 21.8196 [0.0185] C 2013A&A...559A..14L
I (AB) 21.3701 [0.0098] B 2004ApJ...600L..93G
J (AB) 20.847 [0.003] B 2011ApJ...743..146C
H (AB) 20.622 [0.003] B 2011ApJ...743..146C
K (AB) 20.256 [0.022] D 2006A&A...449..951G
r (AB) 22.1922 [0.0104] C 2004ApJ...600L..93G
i (AB) 21.469 [0.008] B 2011ApJ...743..146C
z (AB) 21.232 [0.008] B 2011ApJ...743..146C
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!). sed-help-icon

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (11) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

GOODS-MUSIC 16097 VCDFS 33401 [CCO2011] ERS2223 [SWM2014] GOODS-S 43696
GOODS J033226.23-274222.8 VVDS 000033401 [MBR2003] CDFS-H 1049 [WDK2001] 45326
GOODS J033226.23-274222.9 VVDS J033226.26-274222.8 [S2013] 14331

References (24 between 1850 and 2023) (Total 24)
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


velocities : 9   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : GOODS-MUSIC 16097

Search by coordinates in Vizier (radius: 5 arcsec)

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2023.03.30-06:18:20

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