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7 papers · 2 filters
The Growth of Massive Galaxies Since z=2
Pieter G. van Dokkum, Katherine E. Whitaker, Gabriel Brammer +11
We study the growth of massive galaxies from z=2 to the present using data from the NEWFIRM Medium Band Survey. The sample is selected at a constant number density of n=2x10^-4 Mpc…
The Dead Sequence: A Clear Bimodality in Galaxy Colors from z=0 to z=2.5
G. B. Brammer, K. E. Whitaker, P. G. van Dokkum +9
We select 25,000 galaxies from the NEWFIRM Medium Band Survey (NMBS) to study the rest-frame U-V color distribution of galaxies at 0 < z < 2.5. The five unique NIR filters of the N…
The size-star formation relation of massive galaxies at 1.5<z<2.5
S. Toft, M. Franx, P. G. van Dokkum +4
We study the relation between size and star formation activity in a complete sample of 225 massive (M > 5 x 10^10 Msun) galaxies at 1.5<z<2.5, selected from the FIREWORKS UV-IR cat…
Perspectives in cosmology
Alexander Vilenkin
The "new standard cosmology", based on the theory of inflation, has very impressive observational support. I review some outstanding problems of the new cosmology and the global vi…
Mass Functions of the Active Black Holes in Distant Quasars from the Large Bright Quasar Survey, the Bright Quasar Survey, and the Color-Selected Sample of the SDSS Fall Equatorial Stripe
M. Vestergaard, Patrick S. Osmer
We present mass functions of distant actively accreting supermassive black holes residing in luminous quasars discovered in the Large Bright Quasar Survey, the Bright Quasar Survey…
Gravitational Waves from Broken Cosmic Strings: The Bursts and the Beads
Louis Leblond, Benjamin Shlaer, Xavier Siemens
We analyze the gravitational wave signatures of a network of metastable cosmic strings. We consider the case of cosmic string instability to breakage, with no primordial population…