2017ApJ...840L..25M

Query : 2017ApJ...840L..25M

2017ApJ...840L..25M - Astrophys. J., 840, L25-L25 (2017/May-2)

Tidal tails around the outer halo globular clusters Eridanus and Palomar 15.

MYEONG G.C., JERJEN H., MACKEY D. and DA COSTA G.S.

Abstract (from CDS):

We report the discovery of tidal tails around the two outer halo globular clusters, Eridanus and Palomar 15, based on gi-band images obtained with DECam at the CTIO 4 m Blanco Telescope. The tidal tails are among the most remote stellar streams currently known in the Milky Way halo. Cluster members have been determined from the color-magnitude diagrams and used to establish the radial density profiles, which show, in both cases, a strong departure in the outer regions from the best-fit King profile. Spatial density maps reveal tidal tails stretching out on opposite sides of both clusters, extending over a length of ∼760 pc for Eridanus and ∼1160 pc for Palomar 15. The great circle projected from the Palomar 15 tidal tails encompasses the Galactic Center, while that for Eridanus passes close to four dwarf satellite galaxies, one of which (Sculptor) is at a comparable distance to that of Eridanus.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): globular clusters: general - globular clusters: individual: (Eridanus, Palomar 15) - globular clusters: individual: (Eridanus, Palomar 15)

Simbad objects: 44

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Number of rows : 44
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
3 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1498 4
4 NAME Phoenix Dwarf Galaxy Sy1 01 51 06.3 -44 26 41   13.48 13.2 12.69   ~ 575 2
5 NAME Segue 2 G 02 19 16.0 +20 10 31     15.2     ~ 299 0
6 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
7 NGC 1261 GlC 03 12 16.21 -55 12 58.4     8.63     ~ 579 0
8 NAME E 1 GlC 03 55 02.5 -49 36 52           ~ 229 0
9 NAME Eri Region reg 04 00 -20.0           ~ 43 0
10 NGC 1851 GlC 05 14 06.76 -40 02 47.6           ~ 1529 0
11 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
12 M 79 GlC 05 24 10.59 -24 31 27.3     8.16     ~ 883 0
13 ESO 206-20A G 06 41 36.7 -50 57 58   22.14 11.0 19.47   ~ 1190 0
14 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 998 0
15 Koposov 2 GlC 07 58 17.00 +26 15 19.4           ~ 85 1
16 NAME UMa II Galaxy G 08 51 30.0 +63 07 48     13.3     ~ 410 0
17 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
18 NAME UMa I Galaxy G 10 34 52.80 +51 55 12.0     14.4     ~ 355 1
19 NAME Willman 1 G 10 49 21.0 +51 03 00     15.2     ~ 345 0
20 Z 126-111 G 11 13 28.13 +22 09 10.1   12.9 12.0     ~ 899 0
21 GCl 17 GlC 11 29 16.80 +28 58 25.0   14.4       ~ 379 1
22 NAME Leo V LSB 11 31 09.60 +02 13 12.0     16.0     ~ 234 0
23 NAME Leo IV LSB 11 32 57.0 -00 32 00     15.1     ~ 419 1
24 NAME Coma Dwarf Galaxy G 12 26 59.0 +23 54 15     14.1     ~ 482 1
25 NAME CVn I dSph G 13 28 03.5 +33 33 21     13.1     ~ 352 1
26 NAME Bootes III G 13 57 07.4 +26 46 30     12.6     ~ 115 1
27 NAME Bootes II G 13 58 00.0 +12 51 00     15.4     ~ 269 0
28 NAME Bootes Dwarf Spheroidal Galaxy G 14 00 00.0 +14 30 00     12.8     ~ 491 0
29 NGC 5466 GlC 14 05 27.29 +28 32 04.0     9.70     ~ 887 0
30 Cl Pal 5 GlC 15 16 05.30 -00 06 41.0   15.1       ~ 797 1
31 GCl 38 GlC 16 10 59.00 +14 57 42.0           ~ 399 0
32 NAME Hercules Dwarf Galaxy G 16 31 02.0 +12 47 30     14.0     ~ 379 1
33 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2291 0
34 NGC 6229 GlC 16 46 58.641 +47 31 36.38   9.38 9.86     ~ 397 0
35 GCl 50 GlC 16 59 51.1 -00 32 00   15.70       ~ 224 1
36 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2240 0
37 NGC 6426 GlC 17 44 54.71 +03 10 12.5           ~ 244 0
38 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
39 GLIMPSE C01 GlC 18 48 49.7 -01 29 50           ~ 60 0
40 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2
41 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0
42 M 55 GlC 19 39 59.71 -30 57 53.1     6.49     ~ 913 0
43 NAME Pisces II G 22 58 31.0 +05 57 09     16.3     ~ 283 0
44 NAME Monoceros Stream St* ~ ~           ~ 374 1

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