514 citations · 955 across the 9 of their papers we have counts for
9 papers
The First RELHIC? Cloud-9 is a Starless Gas Cloud
Gagandeep S. Anand, Alejandro Benítez-Llambay, Rachael Beaton +3
Five-hundred-meter Aperture Spherical Telescope (FAST) observations have recently identified a compact HI cloud (hereafter Cloud-9) in the vicinity of the spiral galaxy M94. This i…
UNIONS: The Ultraviolet Near-Infrared Optical Northern Survey
Stephen Gwyn, Alan W. McConnachie, Jean-Charles Cuillandre +86
The Ultraviolet Near-Infrared Optical Northern Survey (UNIONS) is a "collaboration of collaborations" that is using the Canada-France-Hawai'i Telescope, the Pan-STARRS telescopes,…
Deep in the Fields of the Andromeda Halo: Discovery of the Pegasus VII dwarf galaxy in UNIONS
Simon E. T. Smith, Alan W. McConnachie, Stephen Gwyn +8
We present the newly discovered dwarf galaxy Pegasus VII (Peg VII), a member of the M31 sub-group which has been uncovered in the photometric catalogs from the Ultraviolet Nea…
Not So Round: VLA Observations of the Starless Dark Matter Halo Candidate Cloud-9
Alejandro Benítez-Llambay, Rajeshwari Dutta, Michele Fumagalli +1
Observations with FAST recently detected HI 21-cm emission near M94, revealing an intriguing object, Cloud-9, without an optical counterpart. Subsequent analysis suggests Cloud-9 i…
The discovery of the faintest known Milky Way satellite using UNIONS
Simon E. T. Smith, William Cerny, Christian R. Hayes +14
We present the discovery of Ursa Major III/UNIONS 1, the least luminous known satellite of the Milky Way, which is estimated to have an absolute V-band magnitude of $+2.2^{+0.4}_{-…
Ursa Major III/UNIONS 1: the darkest galaxy ever discovered?
Raphaël Errani, Julio F. Navarro, Simon E. T. Smith +1
The recently discovered stellar system Ursa Major III/UNIONS 1 (UMa3/U1) is the faintest known Milky Way satellite to date. With a stellar mass of and a…