2007ApJ...659L..21Z

Query : 2007ApJ...659L..21Z

2007ApJ...659L..21Z - Astrophys. J., 659, L21-L24 (2007/April-2)

Andromeda X, a new dwarf spheroidal satellite of M31: photometry.

ZUCKER D.B., KNIAZEV A.Y., MARTINEZ-DELGADO D., BELL E.F., RIX H.-W., GREBEL E.K., HOLTZMAN J.A., WALTERBOS R.A.M., ROCKOSI C.M., YORK D.G., BARENTINE J.C., BREWINGTON H., BRINKMANN J., HARVANEK M., KLEINMAN S.J., KRZESINSKI J., LONG D., NEILSEN E.H.Jr, NITTA A. and SNEDDEN S.A.

Abstract (from CDS):

We report the discovery of Andromeda X, a new dwarf spheroidal satellite of M31, based on stellar photometry from the Sloan Digital Sky Survey. Using follow-up imaging data we have estimated its distance and other physical properties. We find that Andromeda X has a dereddened central surface brightness of µV,0∼26.7 mag/arcsec2 and a total apparent magnitude of Vtot∼16.1, which at the derived distance modulus, (m-M)0∼24.12-24.34, yields an absolute magnitude of MV~-8.1±0.5; these values are quite comparable to those of Andromeda IX, a previously discovered low-luminosity M31 satellite. The discoveries of Andromeda X and of numerous other extremely faint satellites around M31 and the Milky Way in the past few years suggest that such objects may be plentiful in the Local Group.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Dwarf - Galaxies: Evolution - Galaxies: Individual: Name: Andromeda IX - galaxies: individual (Andromeda X) - Galaxies: Local Group

Nomenclature: And R (No. X) added.

Simbad objects: 17

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Number of rows : 17
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 147 GiG 00 33 12.120 +48 30 31.46   12.0 9.5     ~ 720 1
2 NAME Andromeda III G 00 35 33.8 +36 29 52     14.4     ~ 309 0
3 NGC 185 Sy2 00 38 57.9400026024 +48 20 15.035874648   9.10 9.2     ~ 840 1
4 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1370 1
5 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
6 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
7 NAME Andromeda I G 00 45 39.8 +38 02 28   13.9 12.7     ~ 355 0
8 NAME Andromeda IX G 00 52 53.0 +43 11 45     16.3     ~ 176 1
9 NAME Andromeda X G 01 06 33.70 +44 48 15.8     16.6     ~ 125 1
10 NAME Andromeda V G 01 10 17.1 +47 37 41     15.3     ~ 215 0
11 NAME Andromeda II G 01 16 29.8 +33 25 09     11.7     ~ 402 0
12 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
13 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 998 0
14 NAME UMa II Galaxy G 08 51 30.0 +63 07 48     13.3     ~ 410 0
15 NGC 6553 GlC 18 09 15.68 -25 54 27.9   9.08       ~ 644 0
16 NAME Pisces II G 22 58 31.0 +05 57 09     16.3     ~ 283 0
17 Z 431-72 G 23 28 35.2 +14 44 35 13.85 13.16 12.52     ~ 499 1

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