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No evidence for a dependence of the mass size relation of early-type galaxies on environment in the local Universe
Marc Huertas-Company, Francesco Shankar, Simona Mei +4
The early--type galaxy (ETG) mass--size relation has been largely studied to understand how these galaxies have assembled their mass. One key observational result of the last years…
Simulations of single and two-component galaxy decompositions for spectroscopically selected galaxies from the Sloan Digital Sky Survey
Alan Meert, Vinu Vikram, Mariangela Bernardi
We present the results of fitting simulations of an unbiased sample of SDSS galaxies utilizing the fitting routine GALFIT and analysis pipeline PyMorph. These simulations are used…
Systematic effects on the size-luminosity relation: dependence on model fitting and morphology
M. Bernardi, A. Meert, V. Vikram +4
We quantify the systematics in the size-luminosity relation of galaxies in the SDSS main sample which arise from fitting different 1- and 2-component model profiles to the images.…
Astrophysical Tests of Modified Gravity: Constraints from Distance Indicators in the Nearby Universe
Bhuvnesh Jain, Vinu Vikram, Jeremy Sakstein
We use distance measurements in the nearby universe to carry out new tests of gravity, surpassing other astrophysical tests by over two orders of magnitude for chameleon theories.…
Astrophysical Tests of Modified Gravity: A Screening Map of the Nearby Universe
Anna Cabré, Vinu Vikram, Gong-Bo Zhao +2
Astrophysical tests of modified modified gravity theories in the nearby universe have been emphasized recently by Hui, Nicolis and Stubbs (2009) and Jain and VanderPlas (2011). A k…