2001A&A...379..407K

Query : 2001A&A...379..407K

2001A&A...379..407K - Astronomy and Astrophysics, volume 379, 407-411 (2001/11-4)

A new galaxy near the Local Group in Draco.

KARACHENTSEV I.D., SHARINA M.E., DOLPHIN A.E., GEISLER D., GREBEL E.K., GUHATHAKURTA P., HODGE P.W., KARACHENTSEVA V.E., SARAJEDINI A. and SEITZER P.

Abstract (from CDS):

We present HST WFPC2 and ground-based images of the low surface brightness dwarf Irr/Sph galaxy KKR 25 in Draco. Its colour-magnitude diagram shows red giant branch stars with the tip at I=22.32mag, and the presence of some blue stars. The derived true distance modulus, 26.35mag±0.14mag, corresponds to linear distances of KKR 25 from the Milky Way and from the Local Group centroid of 1.86 and 1.79Mpc, respectively. The absolute magnitude of the galaxy, M_V=-10.48, its linear diameter (0.54Kpc) and central surface brightness (Σ_0,V=24.0mag±0.2mag/"²) are typical of other dIrr/dSphs in the Local Group. Being situated just beyond the radius of the zero-velocity surface of the Local Group, KKR 25 moves away from the LG centroid at a velocity of V_LG=+72km/s.

Abstract Copyright: ∼

Journal keyword(s): galaxies: dwarf - galaxies: distances

Simbad objects: 10

Full paper

View the references in ADS

Number of rows : 10

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2023	#notes
1	NAME Pisces I	G	01 03 56.6	+21 53 41		16.18	14.3		~	381	0
2	NAME Phoenix Dwarf Galaxy	Sy1	01 51 06.3	-44 26 41		13.48	13.2	12.69	~	522	2
3	NAME Sextans B	H2G	10 00 00.8217342072	+05 20 09.533389560	12.77	12.25	11.89	11.71	~	518	0
4	NGC 3109	G	10 03 06.877	-26 09 34.46	11.10	10.42	10.04	9.91	~	757	2
5	NAME Antlia Dwarf Galaxy	G	10 04 03.9	-27 20 01	16.73	15.69	15.17	15.00	~	208	1
6	NAME Sex A	H2G	10 11 00.5	-04 41 30	12.48	12.13	11.93	11.78	~	717	2
7	NGC 5139	GlC	13 26 47.28	-47 28 46.1					~	3364	0
8	LEDA 2801026	LSB	16 13 47.504	+54 22 08.25			15.9		~	107	0
9	NAME Dra dSph	G	17 20 14.335	+57 55 16.39		12.40	10.6		~	1306	1
10	NAME Local Group	GrG	~	~					~	8155	0

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