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4 papers · 2 filters
A Dust-Obscured Massive Maximum-Starburst Galaxy at a Redshift of 6.34
Dominik A. Riechers, C. M. Bradford, D. L. Clements +61
Massive present-day early-type (elliptical and lenticular) galaxies probably gained the bulk of their stellar mass and heavy elements through intense, dust-enshrouded starbursts -…
On inferring extinction laws in z~6 quasars as signatures of supernova dust
Jens Hjorth, Paul M. Vreeswijk, Christa Gall +1
Unusual extinction curves of high-redshift QSOs have been taken as evidence that dust is primarily produced by supernovae at high redshift. In particular, the 3000 A Todini-Ferrara…
The GALEX Time Domain Survey I. Selection and Classification of Over a Thousand UV Variable Sources
S. Gezari, D. C. Martin, K. Forster +15
We present the selection and classification of over a thousand ultraviolet (UV) variable sources discovered in ~ 40 deg^2 of GALEX Time Domain Survey (TDS) NUV images observed with…
Shock heating of the merging galaxy cluster A521
H. Bourdin, P. Mazzotta, M. Markevitch +2
A521 is an interacting galaxy cluster located at z=0.247, hosting a low frequency radio halo connected to an eastern radio relic. Previous Chandra observations hinted at the presen…