NGC 3628-ucd1: a possible ω cen analog embedded in a stellar stream

Article, Preprint English OPEN
Jennings, ZG ; Romanowsky, AJ ; Brodie, JP ; Janz, J ; Norris, MA ; Forbes, DA ; Martinez-Delgado, D ; Fagioli, M ; Penny, SJ (2015)
  • Publisher: University of Chicago Press
  • Journal: volume 812 (issn: 2041-8205)
  • Related identifiers: doi: 10.1088/2041-8205/812/1/L10
  • Subject: /dk/atira/pure/core/subjects/cosmology | F500 | F510 | Astrophysics - Astrophysics of Galaxies | F540 | astro-ph.GA | Cosmology and Gravitation
    arxiv: Astrophysics::Galaxy Astrophysics | Astrophysics::Cosmology and Extragalactic Astrophysics | Astrophysics::High Energy Astrophysical Phenomena | Astrophysics::Earth and Planetary Astrophysics | Astrophysics::Solar and Stellar Astrophysics

Using Subaru/Suprime-Cam wide-field imaging and both Keck/ESI and LBT/MODS spectroscopy, we identify and characterize a compact star cluster, which we term NGC 3628-UCD1, embedded in a stellar stream around the spiral galaxy NGC 3628. The size and luminosity of UCD1 are... View more
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