152 citations · 173 across the 5 of their papers we have counts for
5 papers
Massive star clusters and clumps in the collisional ring galaxy Arp 147
Z. Randriamanakoto, M. Rakototafika, B. Mongwane +2
We conduct a photometric study of star clusters (or knots) in the collisional ring galaxy (CRG) Arp 147 to trace the star formation history across its empty ring. Using HST F450W,…
Measurement of the extragalactic background light at 8600Å using dark cloud shadow and the CaII-triplet lines
Lauri K. Haikala, Kalevi Mattila, Petri Väisänen
We present results of a measurement of the near infrared Extragalactic Background Light using the dark-cloud method. Long-slit spectra covering the opaque core of the intermediate-…
Emergence hour-by-hour of -process features in the kilonova AT2017gfo
Albert Sneppen, Darach Watson, Rasmus Damgaard +4
The spectral features in the optical/near-infrared counterparts of neutron star mergers (kilonovae, KNe), evolve dramatically on hour timescales. To examine the spectral evolution…
The Rapid Reddening and Featureless Optical Spectra of the optical counterpart of GW170817, AT 2017gfo, During the First Four Days
Curtis McCully, Daichi Hiramatsu, D. Andrew Howell +17
We present the spectroscopic evolution of AT 2017gfo, the optical counterpart of the first binary neutron star (BNS) merger detected by LIGO and Virgo, GW170817. While models have…
The stellar populations in the low luminosity, early-type galaxy NGC59
A. E. Sansom, J. J. Thirlwall, M. A. Deakin +3
Low luminosity galaxies may be the building blocks of more luminous systems. Southern African Large Telescope (SALT) observations of the low luminosity, early-type galaxy NGC59 are…