Publications (8)
Searching for z~7.7 Lyman Alpha Emitters in the COSMOS Field with NEWFIRM
Hannah Krug, Sylvain Veilleux, Vithal Tilvi +8
The study of Ly-alpha emission in the high-redshift universe is a useful probe of the epoch of reionization, as the Ly-alpha line should be attenuated by the intergalactic medium (…
The Luminosity Function of Lyman alpha Emitters at Redshift z=7.7
Vithal Tilvi, James E. Rhoads, Pascale Hibon +8
Lyman alpha (Lya) emission lines should be attenuated in a neutral intergalactic medium (IGM). Therefore the visibility of Lya emitters at high redshifts can serve as a valuable pr…
The Disk Mass project; science case for a new PMAS IFU module
Marc Verheijen, Matthew Bershady, David Andersen +4
We present our Disk Mass project as the main science case for building a new fiber IFU-module for the PMAS spectrograph, currently mounted at the Cassegrain focus of the 3.5m teles…
The extra-planar neutral gas in the edge-on spiral galaxy NGC 891
Filippo Fraternali, Tom Oosterloo, Renzo Sancisi +1
We present neutral hydrogen observations of the nearby edge-on spiral galaxy NGC891 which show extended extra-planar emission up to distances of 15 kpc from the plane. 3D modeling…
Dark Matter in Late-type Dwarf Galaxies
Rob Swaters
Previous studies of dwarf irregular galaxies have mostly found that these systems have slowly rising rotation curves and that they are dominated by dark matter, even well within th…
High Velocity Gas in the Halos of Spiral Galaxies
Filippo Fraternali, Tom Oosterloo, Rense Boomsma +2
Recent, high sensitivity, HI observations of nearby spiral galaxies show that their thin `cold' disks are surrounded by thick layers (halos) of neutral gas with anomalous kinematic…
A comprehensive study of H emitters at 0.62 in the DAWN survey: the need for deep and wide regions
Santosh Harish, Alicia Coughlin, James E. Rhoads +19
We present new estimates of the luminosity function (LF) and star formation rate density (SFRD) for an H selected sample at from the Deep And Wide Narrow-band (DAWN…
The Mass Distribution in Low Surface Brightness Galaxies
Rob Swaters
The distribution of the stellar and gaseous components in low surface brightness galaxies has been determined directly from optical and HI imaging. The distribution of what might b…