activity
20092014
most citedA cosmic web filament revealed in Lyman-alpha emission around a luminous high-redshift quasar

389 citations · 561 across the 3 of their papers we have counts for

collaborators

10 papers

astro-ph.GA2014★ 65 cited

Dissecting the Gaseous Halos of z~2 Damped Ly Systems with Close Quasar Pairs

Kate H. R. Rubin, Joseph F. Hennawi, J. Xavier Prochaska +3

We use spectroscopy of close pairs of quasars to study diffuse gas in the circumgalactic medium (CGM) surrounding a sample of 40 Damped Lya systems (DLAs). The primary sightline in…

astro-ph.CO2014★ 389 cited

A cosmic web filament revealed in Lyman-alpha emission around a luminous high-redshift quasar

Sebastiano Cantalupo, Fabrizio Arrigoni-Battaia, J. Xavier Prochaska +2

Simulations of structure formation in the Universe predict that galaxies are embedded in a "cosmic web", where the majority of baryons reside as rarefied and highly ionized gas. Th…

astro-ph.CO2013★ 107 cited

The spin temperature of high-redshift damped Lyman- systems

N. Kanekar, J. X. Prochaska, A. Smette +10

We report results from a programme aimed at investigating the temperature of neutral gas in high-redshift damped Lyman- absorbers (DLAs). This involved (1) HI 21cm absorption st…

astro-ph.CO2013

Evidence for Ubiquitous Collimated Galactic-Scale Outflows along the Star-Forming Sequence at z~0.5

Kate H. R. Rubin, J. Xavier Prochaska, David C. Koo +3

We present an analysis of the MgII 2796, 2803 and FeII 2586, 2600 absorption line profiles in individual spectra of 105 galaxies at 0.3<z<1.4. The galaxies, drawn from redshift sur…

astro-ph.CO2013

Quasars Probing Quasars IV: Joint Constraints on the Circumgalactic Medium from Absorption and Emission

Joseph F. Hennawi, J. Xavier Prochaska

We have constructed a sample of 29 close projected quasar pairs where the background quasar spectrum reveals absorption from optically thick HI gas associated with the foreground q…

astro-ph.HE2011

A faint optical flash in dust-obscured GRB 080603A - implications for GRB prompt emission mechanisms

C. Guidorzi, S. Kobayashi, D. A. Perley +23

We report the detection of a faint optical flash by the 2-m Faulkes Telescope North simultaneously with the second of two prompt gamma-ray pulses in INTEGRAL gamma-ray burst (GRB)…