2014MNRAS.442L..85K

Query : 2014MNRAS.442L..85K

2014MNRAS.442L..85K - Mon. Not. R. Astron. Soc., 442, L85-L89 (2014/July-3)

Discovery of a cold stellar stream in the ATLAS DR1 data.

KOPOSOV S.E., IRWIN M., BELOKUROV V., GONZALEZ-SOLARES E., KUPCU YOLDAS A., LEWIS J., METCALFE N. and SHANKS T.

Abstract (from CDS):

We report the discovery of a narrow stellar stream crossing the constellations of Sculptor and Fornax in the Southern celestial hemisphere. The portion of the stream detected in the Data Release 1 photometry of the ATLAS survey is at least 12° long, while its width is ~0 _.^○25. The colour-magnitude diagram of this halo sub-structure is consistent with a metal-poor [Fe/H] ≲ -1.4 stellar population located at a heliocentric distance of 20±2 kpc. There are three globular clusters that could tentatively be associated with the stream: NGC 7006, NGC 7078 (M15) and Pyxis, but NGC 7006 and 7078 seem to have proper motions incompatible with the stream orbit.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): Galaxy: fundamental parameters - Galaxy: halo - Galaxy: kinematics and dynamics

Nomenclature: NAME ATLAS Stream N=1.

Simbad objects: 24

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Number of rows : 24
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 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 1130 0
2 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1498 4
3 NAME Pisces Stellar Stream St* 01 32 +23.0           ~ 16 0
4 NAME Sagittarius Stream St* 02 22 +00.0           ~ 1001 0
5 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
6 Cl Pal 1 GlC 03 33 20.04 +79 34 51.8   17.2       ~ 267 1
7 NAME E 1 GlC 03 55 02.5 -49 36 52           ~ 229 0
8 NGC 1851 GlC 05 14 06.76 -40 02 47.6           ~ 1529 0
9 NGC 2298 GlC 06 48 59.41 -36 00 19.1     8.89     ~ 547 0
10 NAME Pyxis Cluster GlC 09 07 57.80 -37 13 17.0           ~ 123 0
11 NGC 5053 GlC 13 16 27.09 +17 42 00.9     9.96     ~ 675 0
12 NGC 5466 GlC 14 05 27.29 +28 32 04.0     9.70     ~ 887 0
13 Cl Pal 5 GlC 15 16 05.30 -00 06 41.0   15.1       ~ 797 1
14 NAME Acheron Stream St* 15 50 24.0 +09 48 39           ~ 14 0
15 GCl 38 GlC 16 10 59.00 +14 57 42.0           ~ 399 0
16 NAME Lethe Stream St* 16 15 45.0 +29 56 45           ~ 16 0
17 NAME Cocytos Stream St* 16 29 21.0 +26 40 08           ~ 19 0
18 M 71 GlC 19 53 46.49 +18 46 45.1           ~ 1190 0
19 NGC 7006 GlC 21 01 29.465 +16 11 16.49     10.46     ~ 562 0
20 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0
21 NAME GD-1 Stream St* 22 40 +31.           ~ 319 0
22 GCl 124 GlC 23 06 44.48 +12 46 19.2   15.6       ~ 307 1
23 NGC 7492 GlC 23 08 26.68 -15 36 41.3     10.48     ~ 330 0
24 NAME ATLAS Stream St* ~ ~           ~ 44 0

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