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Galaxy merger histories and the role of merging in driving star formation at z>1
S. Kaviraj, J. Devriendt, Y. Dubois +5
We use Horizon-AGN, a hydrodynamical cosmological simulation, to explore the role of mergers in the evolution of massive (M > 10^10 MSun) galaxies around the epoch of peak cosmic s…
A quiescent galaxy at the position of the long GRB 050219A
A. Rossi, S. Piranomonte, S. Savaglio +25
Long-duration gamma-ray bursts (LGRBs) are produced by the collapse of very massive stars. Due to the short lifetime of their progenitors, LGRBs pinpoint star-forming galaxies. We…
Tracing Recent Star Formation of Red Early-type Galaxies out to 1
Jongwan Ko, Ho Seong Hwang, Myungshin Im +3
We study the mid-infrared (IR) excess emission of early-type galaxies (ETGs) on the red-sequence at 1 using a spectroscopic sample of galaxies in the fields of Great Observat…
New light on gamma-ray burst host galaxies with Herschel
L. K. Hunt, E. Palazzi, M. J. Michałowski +17
Until recently, dust emission has been detected in very few host galaxies of gamma-ray bursts (GRBHs). With Herschel, we have now observed 17 GRBHs up to redshift z~3 and detected…