activity
20092022
most citedThe Contribution of High Redshift Galaxies to Cosmic Reionization: New Results from Deep WFC3 Imaging of the Hubble Ultra Deep Field

204 citations · 1k across the 12 of their papers we have counts for

collaborators

12 papers

astro-ph.GA2022★ 6 cited

An investigation of the star-forming main sequence considering the nebular continuum emission at low-z

Henrique Miranda, Ciro Pappalardo, Polychronis Papaderos +7

The code FADO is the first publicly available population spectral synthesis tool that treats the contribution from ionised gas to the observed emission self-consistently. We study…

astro-ph.GA2019★ 11 cited

Structural analysis of massive galaxies using HST deep imaging at z < 0.5

Sandra N. dos Reis, Fernando Buitrago, Polychronis Papaderos +11

Taking advantage of HST CANDELS data, we analyze the lowest redshift (z<0.5) massive galaxies in order to disentangle their structural constituents and study possible faint non-axi…

astro-ph.GA2014

Identifying the first generation of radio powerful AGN in the Universe with the SKA

Jose Afonso, Jordi Casanellas, Isabella Prandoni +4

One of the most challenging and exciting subjects in modern astrophysics is that of galaxy formation at the epoch of reionisation. The SKA, with its revolutionary capabilities in t…

astro-ph.CO2013★ 157 cited

Spectroscopy of z ~ 7 candidate galaxies: Using Lyman-alpha to constrain the neutral fraction of hydrogen in the high-redshift universe

Joseph Caruana, Andrew J. Bunker, Stephen M. Wilkins +4

Following our previous spectroscopic observations of galaxies with Gemini/GNIRS and VLT/XSHOOTER, which targeted a total of 8 objects, we present here our results from a deep…

astro-ph.CO2012★ 42 cited

Constraining the Bright-end of the UV Luminosity Function for z ~ 7 - 9 Galaxies: results from CANDELS/GOODS-South

Silvio Lorenzoni, Andrew J. Bunker, Stephen M. Wilkins +3

The recent Hubble Space Telescope near-infrared imaging with the Wide-Field Camera #3 (WFC3) of the GOODS-South field in the CANDELS program covering nearly 100arcmin^2, along with…

astro-ph.CO2012★ 89 cited

No Evidence for Lyman-alpha Emission in Spectroscopy of z > 7 Candidate Galaxies

Joseph Caruana, Andrew J. Bunker, Stephen M. Wilkins +5

We present Gemini/GNIRS spectroscopic observations of 4 z-band (z~7) dropout galaxies and VLT/XSHOOTER observations of one z-band dropout and 3 Y-band (z~8-9) dropout galaxies in t…

astro-ph.CO2011★ 140 cited

The UV Properties of Star Forming Galaxies I: HST WFC3 Observations of Very-high Redshift Galaxies

Stephen M. Wilkins, Andrew J. Bunker, Elizabeth Stanway +2

The acquisition of deep Near-IR imaging with Wide Field Camera 3 on the Hubble Space Telescope has provided the opportunity to study the very-high redshift Universe. For galaxies u…

astro-ph.CO2010★ 72 cited

Candidate z~8-9 Galaxies from WFC3 Imaging

Silvio Lorenzoni, Andrew Bunker, Stephen Wilkins +3

We present a search for galaxies at 7.6<z<9.8 using the latest HST WFC3 near-infrared data, based on the Lyman-break technique. We search for galaxies which have large (Y-J) colour…

astro-ph.CO2010★ 62 cited

New Star Forming Galaxies at z\approx 7 from WFC3 Imaging

Stephen M. Wilkins, Andrew J. Bunker, Silvio Lorenzoni +1

The addition of Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST) has led to a dramatic increase in our ability to study the z>6 Universe. The increase in the near-inf…

astro-ph.CO2009★ 179 cited

A wide-field HI mosaic of Messier 31. II.The disk warp, rotation and the dark matter halo

Edvige Corbelli, Silvio Lorenzoni, René A. M. Walterbos +2

We test cosmological models of structure formation using the rotation curve of the nearest spiral galaxy, M31, determined using a recent deep, full-disk 21-cm imaging survey smooth…

astro-ph.CO2009★ 68 cited

Probing Lyman-break Galaxies at in GOODS-South with WFC3 on HST

Stephen M. Wilkins, Andrew J. Bunker, Richard S. Ellis +5

We analyse recently acquired near-infrared Hubble Space Telescope imaging of the GOODS-South field to search for star forming galaxies at z~7.0. By comparing WFC 3 0.98 micron Y-ba…

astro-ph.CO2009★ 204 cited

The Contribution of High Redshift Galaxies to Cosmic Reionization: New Results from Deep WFC3 Imaging of the Hubble Ultra Deep Field

Andrew Bunker, Stephen Wilkins, Richard Ellis +6

We have searched for star-forming galaxies at z~7 by applying the Lyman-break technique to newly-released 1.1micron Y-band images from WFC3 on HST. By comparing these images of the…