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On the intermediate-redshift central stellar mass-halo mass relation, and implications for the evolution of the most massive galaxies since z~1
Francesco Shankar, Hong Guo, Vincent Bouillot +20
The stellar mass-halo mass relation is a key constraint in all semi-analytic, numerical, and semi-empirical models of galaxy formation and evolution. However, its exact shape and r…
Testing Gravity Theories Using Stars
Jeremy Sakstein, Bhuvnesh Jain, Vinu Vikram
Modified theories of gravity have received a renewed interest due to their ability to account for the cosmic acceleration. In order to satisfy the solar system tests of gravity, th…
Astrophysical Tests of Modified Gravity: Stellar and Gaseous Rotation Curves in Dwarf Galaxies
Vinu Vikram, Jeremy Sakstein, Charles Davis +1
Chameleon theories of gravity predict that the gaseous component of isolated dwarf galaxies rotates with a faster velocity than the stellar component. In this paper, we exploit thi…
A catalogue of 2D photometric decompositions in the SDSS-DR7 spectroscopic main galaxy sample: preferred models and systematics
Alan Meert, Vinu Vikram, Mariangela Bernardi
We present a catalogue of two-dimensional, point spread function-corrected de Vacouleurs, Sérsic, de Vacouleurs+Exponential, and Sérsic+Exponential fits of spectr…
Mass and galaxy distributions of four massive galaxy clusters from Dark Energy Survey Science Verification data
P. Melchior, E. Suchyta, E. Huff +89
We measure the weak-lensing masses and galaxy distributions of four massive galaxy clusters observed during the Science Verification phase of the Dark Energy Survey. This pathfinde…
Mega parsec relativistic jets launched from an accreting supermassive blackhole in an extreme spiral galaxy
Joydeep Bagchi, Vivek M., Vinu Vikram +6
Radio galaxy phenomenon is directly connected to mass accreting, spinning supermassive black holes found in the active galactic nuclei (AGN). It is still unclear how the collimated…