Connecting young star clusters to CO molecular gas in NGC 7793 with ALMA–LEGUS [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We present an investigation of the relationship between giant molecular cloud (GMC) properties and the associated stellar clusters in the nearby flocculent galaxy NGC 7793. We combine the star cluster catalogue from the HST LEGUS (Legacy ExtraGalactic UV
K. Grasha +24 more
semanticscholar +1 more source
The spatial relation between young star clusters and molecular clouds in M51 with LEGUS [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We present a study correlating the spatial locations of young star clusters with those of molecular clouds in NGC 5194, in order to investigate the time-scale over which clusters separate from their birth clouds.
K. Grasha +26 more
semanticscholar +1 more source
Ionizing the intergalactic medium by star clusters: the first empirical evidence [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We present a VLT/X-Shooter spectroscopy of the Lyman continuum (LyC) emitting galaxy Ion2 at z = 3.2121 and compare it to that of the recently discovered strongly lensed LyC emitter at z = 2.37, known as the Sunburst arc. Three main results emerge from
E. Vanzella +16 more
semanticscholar +1 more source
Collisions in primordial star clusters [PDF]
Astronomy & Astrophysics, 2018 Collisions were suggested to potentially play a role in the formation of massive stars in present day clusters, and have likely been relevant during the formation of massive stars and intermediate mass black holes within the first star clusters.
B. Reinoso +4 more
semanticscholar +1 more source
Post-Newtonian Dynamics in Dense Star Clusters: Highly Eccentric, Highly Spinning, and Repeated Binary Black Hole Mergers. [PDF]
Physical Review Letters, 2017 We present models of realistic globular clusters with post-Newtonian dynamics for black holes. By modeling the relativistic accelerations and gravitational-wave emission in isolated binaries and during three- and four-body encounters, we find that nearly
C. Rodriguez +3 more
semanticscholar +1 more source
Greatly Enhanced Merger Rates of Compact-object Binaries in Non-spherical Nuclear Star Clusters [PDF]
, 2017 The Milky Way and a significant fraction of galaxies are observed to host a central massive black hole (MBH) embedded in a non-spherical nuclear star cluster.
C. Petrovich, F. Antonini
semanticscholar +1 more source
Dynamical ejections of massive stars from young star clusters under diverse initial conditions [PDF]
, 2016 We study the effects of initial conditions of star clusters and their massive star population on dynamical ejections of massive stars from star clusters up to an age of 3 Myr.
Seungkyung Oh, P. Kroupa
semanticscholar +1 more source
The R136 star cluster dissected with Hubble Space Telescope/STIS. I. Far-ultraviolet spectroscopic census and the origin of He II λ1640 in young star clusters [PDF]
, 2016 We introduce a Hubble Space Telescope (HST)/Space Telescope Imaging Spectrograph (STIS) stellar census of R136a, the central ionizing star cluster of 30 Doradus.
P. Crowther +19 more
semanticscholar +1 more source
Formation of intermediate-mass black holes through runaway collisions in the first star clusters [PDF]
, 2017 We study the formation of massive black holes in the first star clusters. We first locate star-forming gas clouds in proto-galactic haloes of $\gtrsim \!10^7\,{\rm M}_{\odot}$ in cosmological hydrodynamics simulations and use them to generate the initial
Y. Sakurai +3 more
semanticscholar +1 more source
THE VERY MASSIVE STAR CONTENT OF THE NUCLEAR STAR CLUSTERS IN NGC 5253 [PDF]
Proceedings of the International Astronomical Union, 2016 The blue compact dwarf galaxy NGC 5253 hosts a very young starburst containing twin nuclear star clusters, separated by a projected distance of 5 pc.
L. Smith +3 more
semanticscholar +1 more source