A faint halo star cluster discovered in the Blanco Imaging of the Southern Sky Survey. (arXiv:1812.06318v1 [astro-ph.GA])

A faint halo star cluster discovered in the Blanco Imaging of the Southern Sky Survey. (arXiv:1812.06318v1 [astro-ph.GA])
<a href="http://arxiv.org/find/astro-ph/1/au:+Mau_S/0/1/0/all/0/1">S. Mau</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Drlica_Wagner_A/0/1/0/all/0/1">A. Drlica-Wagner</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bechtol_K/0/1/0/all/0/1">K. Bechtol</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pace_A/0/1/0/all/0/1">A. B. Pace</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Li_T/0/1/0/all/0/1">T. Li</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Soares_Santos_M/0/1/0/all/0/1">M. Soares-Santos</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kuropatkin_N/0/1/0/all/0/1">N. Kuropatkin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Allam_S/0/1/0/all/0/1">S. Allam</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Tucker_D/0/1/0/all/0/1">D. Tucker</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Santana_Silva_L/0/1/0/all/0/1">L. Santana-Silva</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Yanny_B/0/1/0/all/0/1">B. Yanny</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Jethwa_P/0/1/0/all/0/1">P. Jethwa</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Palmese_A/0/1/0/all/0/1">A. Palmese</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Vivas_K/0/1/0/all/0/1">K. Vivas</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Burgad_C/0/1/0/all/0/1">C. Burgad</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chen_H/0/1/0/all/0/1">H.-Y. Chen</a>

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 (RA, Dec) = (177.511, -41.772) deg with a heliocentric
distance of D = 23.7$^{+1.9}_{-1.0}$ kpc. It is a faint, Mv =
0.0$^{+1.7}_{-0.7}$ mag, and compact, rh = 4.1 +/- 1 pc, 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 $(mu_alpha cos
delta, mu_delta)$ = (-2.37 +/- 0.06, 0.16 +/- 0.04) mas/yr. Combining the
available positional and velocity information with simulations of the accreted
satellite population of the Large Magellanic Cloud, we find that it is unlikely
that BLISS J0321+0438 (BLISS 1) originated with the Large Magellanic Cloud.

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