activity
20052013
most citedUltraVISTA: a new ultra-deep near-infrared survey in COSMOS

829 citations · 1.4k across the 17 of their papers we have counts for

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Showing 2011Show all

7 papers · 1 filter

astro-ph.CO2011★ 31 cited

A Lyα blob and zabs {\approx} zem damped Lyα absorber in the dark matter halo of the binary quasar Q 0151+048

Tayyaba Zafar, Palle Møller, Cédric Ledoux +7

Q0151+048 is a physical QSO pair at z ~ 1.929 with a separation of 3.3 arcsec on the sky. In the spectrum of Q0151+048A (qA), a DLA is observed at a higher redshift. We have previo…

astro-ph.CO2011★ 81 cited

Sizing up Lyman-alpha and Lyman Break Galaxies

Sangeeta Malhotra, James E. Rhoads, Steven L. Finkelstein +4

We show that populations of high redshift galaxies grow more luminous as they grow in linear size. This is because the brightness per unit area has a distinct upper limit due to th…

astro-ph.CO2011★ 19 cited

X-ray Constraints on the Lyman-Alpha Escape Fraction

Zhen-Ya Zheng, Sangeeta Malhotra, Jun-Xian Wang +7

We have coadded X-ray flux of all known Lyman Alpha Emitters (LAEs) in the 4 Msec Chandra Deep Field South (CDF-S) region, to place sensitive upper limits on the average unobscured…

astro-ph.CO2011★ 56 cited

Evolution of the observed Ly-alpha luminosity function from z = 6.5 to z = 7.7: evidence for the epoch of reionization ?

B. Clément, J. -G. Cuby, F. Courbin +17

Aims. Ly-alpha emitters (LAEs) can be detected out to very high redshifts during the epoch of reionization. The evolution of the LAE luminosity function with redshift is a direct p…

astro-ph.GA2011★ 20 cited

A Link to the Past: Using Markov Chain Monte Carlo Fitting to Constrain Fundamental Parameters of High-Redshift Galaxies

N. Pirzkal, B. Rothberg, Kim K. Nilsson +4

We have a developed a new method for fitting spectral energy distributions (SEDs) to identify and constrain the physical properties of high-redshift (4 < z < 8) galaxies. Our appro…

astro-ph.CO2011★ 5 cited

The Hubble Legacy Archive ACS Grism Data

M. Kuemmel, P. Rosati, R. Fosbury +8

A public release of slitless spectra, obtained with ACS/WFC and the G800L grism, is presented. Spectra were automatically extracted in a uniform way from 153 archival fields (or "a…

astro-ph.CO2011★ 13 cited

Lyman-alpha emitters as tracers of the transitioning Universe

Kim K. Nilsson, Palle Møller

Of the many ways of detecting high redshift galaxies, the selection of objects due to their redshifted Ly-alpha emission has become one of the most successful. But what types of ga…