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The ESO's VLT Type Ia supernova spectral set of the final two years of SNLS
C. Balland, F. Cellier-Holzem, C. Lidman +24
We aim to present 70 spectra of 68 new high-redshift type Ia supernovae (SNeIa) measured at ESO's VLT during the final two years of operation (2006-2008) of the Supernova Legacy Su…
Studying the Ultraviolet Spectrum of the First Spectroscopically Confirmed Supernova at redshift two
M. Smith, M. Sullivan, R. C. Nichol +87
We present observations of DES16C2nm, the first spectroscopically confirmed hydrogen-free superluminous supernova (SLSN-I) at redshift z~2. DES16C2nm was discovered by the Dark Ene…
Quasar Accretion Disk Sizes From Continuum Reverberation Mapping From the Dark Energy Survey
D. Mudd, P. Martini, Y. Zu +69
We present accretion disk size measurements for 15 luminous quasars at derived from light curves from the Dark Energy Survey. We measure the disk sizes…
KiDS+2dFLenS+GAMA: Testing the cosmological model with the statistic
A. Amon, C. Blake, C. Heymans +17
We present a new measurement of , which combines measurements of weak gravitational lensing, real-space galaxy clustering and redshift space distortions. This statistic…
Follow up of GW170817 and its electromagnetic counterpart by Australian-led observing programs
I. Andreoni, K. Ackley, J. Cooke +122
The discovery of the first electromagnetic counterpart to a gravitational wave signal has generated follow-up observations by over 50 facilities world-wide, ushering in the new era…
The XXL Survey: XXII. The XXL-North spectrophotometric sample and galaxy stellar mass function in X-ray detected groups and clusters
V. Guglielmo, B. M. Poggianti, B. Vulcani +42
The fraction of galaxies bound in groups in the nearby Universe is high (50% at z~0). Systematic studies of galaxy properties in groups are important in order to improve our unders…
The influence of Host Galaxies in Type Ia Supernova Cosmology
Syed A. Uddin, Jeremy Mould, Chris Lidman +2
We use a sample of 1338 spectroscopically confirmed and photometrically classified Type Ia Supernovae (SNe Ia), sourced from the CSP, CfA, SDSS-II, and SNLS supernova samples, to e…
Dark Energy Survey Year 1 Results: Cross-Correlation Redshifts - Methods and Systematics Characterization
M. Gatti, P. Vielzeuf, C. Davis +104
We use numerical simulations to characterize the performance of a clustering-based method to calibrate photometric redshift biases. In particular, we cross-correlate the weak lensi…
Dark Energy Survey Year 1 Results: Galaxy clustering for combined probes
J. Elvin-Poole, M. Crocce, A. J. Ross +123
We measure the clustering of DES Year 1 galaxies that are intended to be combined with weak lensing samples in order to produce precise cosmological constraints from the joint anal…
Dark Energy Survey Year 1 Results: Redshift distributions of the weak lensing source galaxies
B. Hoyle, D. Gruen, G. M. Bernstein +135
We describe the derivation and validation of redshift distribution estimates and their uncertainties for the galaxies used as weak lensing sources in the Dark Energy Survey (DES) Y…
DES15E2mlf: A Spectroscopically Confirmed Superluminous Supernova that Exploded 3.5 Gyr After the Big Bang
Y. -C. Pan, R. J. Foley, M. Smith +63
We present the Dark Energy Survey (DES) discovery of DES15E2mlf, the most distant superluminous supernova (SLSN) spectroscopically confirmed to date. The light curves and Gemini sp…
The Morphological Transformation of Red Sequence Galaxies in Clusters since
P. Cerulo, W. J. Couch, C. Lidman +6
The study of galaxy morphology is fundamental to understand the physical processes driving the structural evolution of galaxies. It has long been known that dense environments host…
KiDS-450 + 2dFLenS: Cosmological parameter constraints from weak gravitational lensing tomography and overlapping redshift-space galaxy clustering
Shahab Joudaki, Chris Blake, Andrew Johnson +19
We perform a combined analysis of cosmic shear tomography, galaxy-galaxy lensing tomography, and redshift-space multipole power spectra (monopole and quadrupole) using 450 deg…
The Discovery of a Gravitationally Lensed Supernova Ia at Redshift 2.22
David Rubin, Brian Hayden, Xiaosheng Huang +32
We present the discovery and measurements of a gravitationally lensed supernova (SN) behind the galaxy cluster MOO J1014+0038. Based on multi-band Hubble Space Telescope and Very L…
KiDS-i-800: Comparing weak gravitational lensing measurements in same-sky surveys
A. Amon, C. Heymans, D. Klaes +21
We present a weak gravitational lensing analysis of 815 square degree of -band imaging from the Kilo-Degree Survey (KiDS--800). In contrast to the deep -band observations,…
Gemini Observations of Galaxies in Rich Early Environments (GOGREEN) I: Survey Description
Michael L. Balogh, David G. Gilbank, Adam Muzzin +29
We describe a new Large Program in progress on the Gemini North and South telescopes: Gemini Observations of Galaxies in Rich Early Environments (GOGREEN). This is an imaging and d…
A blinded determination of from low-redshift Type Ia supernovae, calibrated by Cepheid variables
Bonnie R. Zhang, Michael J. Childress, Tamara M. Davis +4
Presently a tension exists between values of the Hubble constant derived from analysis of fluctuations in the Cosmic Microwave Background by Planck, and local measure…
ALMA Observations of Gas-Rich Galaxies in z~1.6 Galaxy Clusters: Evidence for Higher Gas Fractions in High-Density Environments
A. G. Noble, M. McDonald, A. Muzzin +16
We present ALMA CO (2-1) detections in 11 gas-rich cluster galaxies at z~1.6, constituting the largest sample of molecular gas measurements in z>1.5 clusters to date. The observati…
Galaxy Merger Candidates in High-Redshift Cluster Environments
A. G. Delahaye, T. M. A. Webb, J. Nantais +14
We compile a sample of spectroscopically- and photometrically-selected cluster galaxies from four high-redshift galaxy clusters () from the Spitzer Adaptation of t…
Red but not dead : Unveiling the Star-forming Far-infrared Spectral Energy Distribution of SpARCS Brightest Cluster Galaxies at 0 < z < 1.8
N. R. Bonaventura, T. M. A. Webb, A. Muzzin +8
We present the results of a Spitzer/Herschel infrared photometric analysis of the largest (716) and highest-redshift (z=1.8) sample of Brightest Cluster Galaxies (BCGs), those from…