2.3k citations · 8.7k across the 23 of their papers we have counts for
18 papers · 1 filter
H-alpha emission in local galaxies: star formation, time variability and the diffuse ionized gas
Sandro Tacchella, Aaron Smith, Rahul Kannan +6
The nebular recombination line H is widely used as a star-formation rate (SFR) indicator in the local and high-redshift Universe. We present a detailed H radiative transfer s…
Galaxies in the Illustris simulation as seen by the Sloan Digital Sky Survey - I: Bulge+disc decompositions, methods, and biases
Connor Bottrell, Paul Torrey, Luc Simard +1
We present an image-based method for comparing the structural properties of galaxies produced in hydrodynamical simulations to real galaxies in the Sloan Digital Sky Survey. The ke…
Massive Close Pairs Measure Rapid Galaxy Assembly in Mergers at High Redshift
Gregory F. Snyder, Jennifer M. Lotz, Vicente Rodriguez-Gomez +3
We compare mass-selected close pairs at z > 1 with the intrinsic galaxy merger rate in the Illustris Simulations. To do so, we construct three 140 arcmin^2 lightcone catalogs and m…
The role of mergers and halo spin in shaping galaxy morphology
Vicente Rodriguez-Gomez, Laura V. Sales, Shy Genel +10
Mergers and the spin of the dark matter halo are factors traditionally believed to determine the morphology of galaxies within a CDM cosmology. We study this hypothesis by consi…
The Califa and Hipass velocity function for all morphological galaxy types
S. Bekeraitė, C. J. Walcher, L. Wisotzki +17
The velocity function is a fundamental observable statistic of the galaxy population, similarly impor- tant as the luminosity function, but much more difficult to measure. In this…
About AGN ionization echoes, thermal echoes, and ionization deficits in low redshift Lyman-alpha blobs
Mischa Schirmer, Sangeeta Malhotra, Nancy A. Levenson +7
We report the discovery of 14 Lyman-alpha blobs (LABs) at z~0.3, existing at least 4-7 billion years later in the Universe than all other LABs known. Their optical diameters are 20…