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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…
Low Masses and High Redshifts: The Evolution of the Mass-Metallicity Relation
Alaina Henry, Claudia Scarlata, Alberto Dominguez +15
We present the first robust measurement of the high redshift mass-metallicity (MZ) relation at 10^{8}< M/M_{\sun} < 10^{10}, obtained by stacking spectra of 83 emission-line galaxi…
Theoretical predictions for the effect of nebular emission on the broad band photometry of high-redshift galaxies
Stephen M. Wilkins, William Coulton, Joseph Caruana +6
By combining optical and near-IR observations from the Hubble Space Telescope with NIR photometry from the Spitzer Space Telescope it is possible to measure the rest-frame UV-optic…
Predicting Future Space Near-IR Grism Surveys using the WFC3 Infrared Spectroscopic Parallels Survey
James W. Colbert, Harry Teplitz, Hakim Atek +13
We present near-infrared emission line counts and luminosity functions from the HST WFC3 Infrared Spectroscopic Parallels (WISP) program for 29 fields (0.037 deg^2) observed using…
Interpreting the observed UV continuum slopes of high-redshift galaxies
Stephen M. Wilkins, Andrew Bunker, William Coulton +4
The observed UV continuum slope of star forming galaxies is strongly affected by the presence of dust. Its observation is then a potentially valuable diagnostic of dust attenuation…
VLT/XSHOOTER & Subaru/MOIRCS Spectroscopy of HUDF-YD3: No Evidence for Lyman-alpha Emission at z=8.55
Andrew J. Bunker, Joseph Caruana, Stephen M. Wilkins +5
We present spectroscopic observations with VLT/XSHOOTER and Subaru/MOIRCS of a relatively bright Y-band drop-out galaxy in the Hubble Ultra Deep Field, first selected by Bunker et…