2008MNRAS.385L..83C

Query : 2008MNRAS.385L..83C

2008MNRAS.385L..83C - Mon. Not. R. Astron. Soc., 385, L83-L87 (2008/March-3)

SDSSJ124155.33+114003.7 - a missing link between compact elliptical and ultracompact dwarf galaxies.

CHILINGARIAN I.V. and MAMON G.A.

Abstract (from CDS):

We report the discovery of a compact object (Re= 32 pc, MB = -12.34 mag) at a projected distance of 9 kpc from Messier 59, a giant elliptical in the Virgo cluster. Using HST imaging and SDSS spectroscopy, both available in the Virtual Observatory, we find that this object has a blue core containing one-quarter of the light, and a redder n = 1 Sérsic envelope, as well as luminosity-weighted age of 9.3±1.4 Gyr, a metallicity of -0.03±0.04 dex and a velocity dispersion of 48±5 km/s. While ultracompact dwarf galaxies (UCDs) in the face-on view of the Fundamental Plane are found to form a sequence connecting the highest-luminosity globular clusters with the lowest-luminosity dwarf ellipticals, the compact object near M59 lies in between this UCD sequence and the positions of compact ellipticals. Its stellar age, metallicity, and effective surface brightness are similar to low-luminosity ellipticals and lenticulars, suggesting that SDSSJ124155.33+114003.7 is a result of the tidal stripping of such an object.

Abstract Copyright: 2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): galaxies: dwarf - galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: kinematics and dynamics - galaxies: stellar content

Nomenclature: NAME M59cO N=1.

Simbad objects: 27

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Number of rows : 27
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 NGC 130 GiG 00 29 18.5409015096 +02 52 13.502672292   15       ~ 42 0
2 NAME Mayall II GlC 00 32 46.5323801712 +39 34 40.504803060   14.564 13.807 13.208 12.684 ~ 400 1
3 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
4 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
5 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
6 CGF 1-4 GlC 03 38 54.0545340024 -35 33 33.320376180   18.5 18.06     ~ 81 1
7 FCSS J033952.5-350424 GiC 03 39 52.5471040440 -35 04 24.003755616   19.66 19.50     ~ 37 0
8 2MASX J03451407-3656123 GiC 03 45 14.0920864008 -36 56 12.009885828   15.32       ~ 57 0
9 LEDA 3084811 GiC 04 33 37.3 -13 15 18           ~ 15 0
10 NGC 4379 GiG 12 25 14.7458757864 +15 36 26.755074576 13.05 12.63 11.72     ~ 239 1
11 NGC 4387 GiG 12 25 41.6768484264 +12 48 37.804615956 13.42 13.01 12.12   10.87 ~ 409 1
12 IC 3328 GiP 12 25 57.9238048368 +10 03 13.552350912   14.9       ~ 172 0
13 NGC 4467 GiG 12 29 30.2447376768 +07 59 34.273371336   15.2       ~ 187 0
14 NGC 4486B GiG 12 30 31.985 +12 29 24.85   14.5       ~ 428 0
15 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
16 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
17 2MASS J12315289+1215589 G 12 31 52.8990925992 +12 15 59.041171656           ~ 52 0
18 2MASX J12353723+1222554 GiP 12 35 37.2512550384 +12 22 55.234598772   15.41       ~ 103 0
19 IC 3653 GiG 12 41 15.7273825296 +11 23 13.997694300   14.7       ~ 122 0
20 SDSS J124155.33+114003.7 G 12 41 55.3338419712 +11 40 03.790134948           ~ 56 0
21 M 59 GiG 12 42 02.2581375168 +11 38 48.909507756   11.0       ~ 721 0
22 M 60 GiC 12 43 39.9708251934 +11 33 09.688174067   10.3       ~ 1395 1
23 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
24 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
25 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
26 NGC 5846A GiP 15 06 29.2023813744 +01 35 41.627266512   14.1 13.37 13.07 12.1 ~ 125 0
27 [WSL93] 3 GlC 22 20 43.878 -24 40 37.87     17.86     ~ 53 0

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