623 citations · 2.2k across the 15 of their papers we have counts for
10 papers · 1 filter
A two-stage settling of the Milky Way disk revealed by precise ChronoGal ages
David Mirabal, Carme Gallart, Tomás Ruiz-Lara +9
The spatial distribution of Galactic disk stars of different ages and metallicities encodes its dynamical evolution history and formation pathways. The lack of precise ages for lar…
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…
Anisotropies in the spatial distribution and kinematics of dwarf galaxies in the Local Group and beyond
Isabel M. E. Santos-Santos, Julio F. Navarro, Alan McConnachie
The Local Group (LG) of galaxies is dominated by the M31 and Milky Way (MW) pair, a configuration which suggests that the mass distribution in the LG and its surroundings should be…
The wobbly Galaxy: kinematics north and south with RAVE red clump giants
M. E. K. Williams, M. Steinmetz, J. Binney +23
The RAVE survey, combined with proper motions and distance estimates, can be used to study in detail stellar kinematics in the extended solar neighbourhood (solar suburb). Using th…
Kinematic groups beyond the Solar neighbourhood with RAVE
T. Antoja, A. Helmi, O. Bienayme +18
We analyse the kinematics of disc stars observed by the RAVE survey in and beyond the Solar neighbourhood.We detect significant overdensities in the velocity distributions using a…