A5029123310- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Gamma-ray bursts and supernovae
- Astrophysics and Cosmic Phenomena
- Advanced Fluorescence Microscopy Techniques
- Astronomical Observations and Instrumentation
- Photocathodes and Microchannel Plates
- Radio Astronomy Observations and Technology
- Advanced Optical Sensing Technologies
- Cosmology and Gravitation Theories
- Statistical and numerical algorithms
- CCD and CMOS Imaging Sensors
University of California, Riverside
2013-2016
Institute for Research in Fundamental Sciences
2013
Star-forming galaxies are considered to be the leading candidate sources that dominate cosmic reionization at z>7, and search for analogs moderate redshift showing Lyman continuum (LyC) leakage is currently a active line of research. We have observed star-forming galaxy z=3.2 with Hubble/WFC3 in F336W filter, corresponding 730-890A rest-frame, detect LyC emission. This very compact also has large Oxygen ratio [OIII]5007/[OII]3727 (>=10). No nuclear activity revealed from...
ABSTRACT High-redshift star-forming galaxies are likely responsible for the reionization of universe, yet direct detection their escaping ionizing (Lyman continuum [LyC]) photons has proven to be extremely challenging. In this study, we search LyC Cosmic Horseshoe, a gravitationally lensed, galaxy at z = 2.38 with large magnification ∼24. Transmission wavelengths low-ionization interstellar absorption lines in rest-frame ultraviolet suggests patchy, partially transparent medium. This makes...
We present catalogues of voids for the SDSS DR7 redshift survey and Millennium I simulation mock data. aim to compare observations with simulations based on a $\Lambda$CDM model semi-analytic galaxy formation model. use void statistics as test these models. assembled catalogue that closely resembles carried out parallel statistical analysis observed simulated catalogue. find in observation simulation, tend be equally spherical. The total volume occupied by their number are slightly larger...
The influence of underdense environments on the formation and evolution galaxies is studied by analyzing photometric properties ∼200 residing in voids, taken from our Sloan Digital Sky Survey (SDSS) DR10 void catalog up to z 0.055. We split into two subsamples based luminosity density contrast their host voids: "sparse void" "populous . find that sparse voids are less massive than populous voids. distribution follows same observed across SDSS survey redshift range. Galaxies also bluer,...