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The DESI Experiment Part II: Instrument Design
DESI Collaboration, Amir Aghamousa, Jessica Aguilar +290
DESI (Dark Energy Spectropic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations and the growth of structure through redshift…
The DESI Experiment Part I: Science,Targeting, and Survey Design
DESI Collaboration, Amir Aghamousa, Jessica Aguilar +290
DESI (Dark Energy Spectroscopic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations (BAO) and the growth of structure through…
Exploring Damped Lyman- System Host Galaxies using Gamma-ray Bursts
Vicki L. Toy, Antonino Cucchiara, Sylvain Veilleux +6
We present a sample of 45 Damped Lyman- system (DLA, \nhi\ ) counterparts (33 detections, 12 upper limits) which host gamma-ray bursts (GRB…
MUSE searches for galaxies near very metal-poor gas clouds at z~3: new constraints for cold accretion models
Michele Fumagalli, Sebastiano Cantalupo, Avishai Dekel +4
We report on the search for galaxies in the proximity of two very metal-poor gas clouds at z~3 towards the quasar Q0956+122. With a 5-hour MUSE integration in a ~500x500 kpc^2 regi…
The Cosmic Evolution of the Metallicity Distribution of Ionized Gas Traced by Lyman Limit Systems
Nicolas Lehner, John M. O'Meara, J. Christopher Howk +2
We present the first results from our KODIAQ Z survey aimed to determine the metallicity distribution and physical properties of the z>2 partial and full Lyman limit systems (pLLSs…
Probing the intra-group medium of a z = 0.28 galaxy group
R. Bielby, N. H. M. Crighton, M. Fumagalli +4
We present new MUSE observations of a galaxy group probed by a background quasar. The quasar sightline passes between multiple galaxies, whilst showing at the same redshif…
The Star Formation Rate Efficiency of Neutral Atomic-dominated Hydrogen Gas in the Outskirts of Star Forming Galaxies from z~1 to z~3
Marc Rafelski, Jonathan P. Gardner, Michele Fumagalli +5
Current observational evidence suggests that the star formation rate (SFR) efficiency of neutral atomic hydrogen gas measured in Damped Ly-alpha Systems (DLAs) at z~3 is more than…
On the connection between the metal-enriched intergalactic medium and galaxies: an OVI-galaxy cross-correlation study at
Charles W. Finn, Simon L. Morris, Nicolas Tejos +10
We present new results on the auto- and cross-correlation functions of galaxies and OVI absorbers in a comoving volume at . We use a sample of 51,29…
Upper limits from five years of blazar observations with the VERITAS Cherenkov telescopes
S. Archambault, A. Archer, W. Benbow +78
Between the beginning of its full-scale scientific operations in 2007 and 2012, the VERITAS Cherenkov telescope array observed more than 130 blazars; of these, 26 were detected as…
Robust automatic photometry of local galaxies from SDSS Dissecting the color magnitude relation with color profiles
Guido Consolandi, Giuseppe Gavazzi, Michele Fumagalli +2
We present an automatic procedure to perform reliable photometry of galaxies on SDSS images. We selected a sample of 5853 galaxies in the Coma and Virgo superclusters. For each gal…
Spectacular tails of ionised gas in the Virgo cluster galaxy NGC 4569
A. Boselli, J. C. Cuillandre, M. Fossati +14
We obtained using MegaCam at the CFHT a deep narrow band Halpha+[NII] wide field image of NGC 4569, the brightest late-type galaxy in the Virgo cluster. The image reveals the prese…