2019ApJ...875..154M

Query : 2019ApJ...875..154M

2019ApJ...875..154M - Astrophys. J., 875, 154-154 (2019/April-3)

A faint halo star cluster discovered in the Blanco Imaging of the Southern Sky survey.

MAU S., DRLICA-WAGNER A., BECHTOL K., PACE A.B., LI T., SOARES-SANTOS M., KUROPATKIN N., ALLAM S., TUCKER D., SANTANA-SILVA L., YANNY B., JETHWA P., PALMESE A., VIVAS K., BURGAD C., CHEN H.-Y. (The BLISS Collaboration)

Abstract (from CDS):

We present the discovery of a faint, resolved stellar system, BLISS J0321+0438 (BLISS 1), found in Dark Energy Camera data from the first observing run of the Blanco Imaging of the Southern Sky (BLISS) survey. BLISS J0321+0438 (BLISS 1) is located at (α2000,δ2000)=(177○ / . 511,-41○ / . 772) with a heliocentric distance of D☉=23.7–1.0+1.9kpc. It is a faint, MV=0.0–0.7+1.7mag, and compact, rh=4.1–1+1pc, system consistent with previously discovered faint halo star clusters. Using data from the second data release of the Gaia satellite, we measure a proper motion of (µαcosδ,µδ)=(-2.37±0.06,0.16±0.04) mas yr–1. Combining the available positional and velocity information with simulations of the accreted satellite population of the Large Magellanic Cloud (LMC), we find that it is unlikely that BLISS J0321+0438 (BLISS 1) originated with the LMC.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: halos - galaxies: star clusters: general - globular clusters: general - Local Group

Nomenclature: NAME BLISS 1 N=1.

Simbad objects: 15

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Number of rows : 15
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 NAME Magellanic Stream HVC 00 32 -30.0           ~ 1079 1
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
3 NAME Hor I G 02 55 31.7 -54 07 08           ~ 169 0
4 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
5 NAME Carina II Dwarf Galaxy G 07 36 25.6 -57 59 57           ~ 86 0
6 NAME Car III Dwarf Galaxy G 07 38 31.2 -57 53 59           ~ 81 0
7 Koposov 2 GlC 07 58 17.00 +26 15 19.4           ~ 85 1
8 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 905 1
9 NAME Bliss 1 Cl* 11 50 02.64 -41 46 19.2           ~ 12 1
10 Koposov 1 GlC 11 59 18.40 +12 15 35.8           ~ 81 0
11 NAME Kim 3 Cl* 13 22 45.20 -30 36 03.6           ~ 26 0
12 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
13 NAME Segue 3 Cl* 21 21 31.0 +19 07 02           ~ 75 0
14 NAME Kim 1 Cl* 22 11 41.30 +07 01 31.8           ~ 31 0
15 NAME Local Group GrG ~ ~           ~ 9325 0

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