7 papers
Multi-wavelength carbon recombination line observations with the VLA toward an UCHII region in W48: Physical properties and kinematics of neutral material
D. Anish Roshi, W. M. Goss, K. R. Anantharamaiah +1
Using the Very Large Array (VLA) the C76 and C53 recombination lines (RLs) have been detected toward the ultra-compact \HII\ region (UCHII region) G35.201.74. We also obta…
GMRT HI imaging survey of ERIDANUS group of galaxies
Amitesh Omar, K. S. Dwarakanath, K. R. Anantharamaiah
This project aims to image a subset of galaxies in the nearby group Eridanus in HI emission and in radio continuum using the GMRT. The typical resolution of HI images will be $\sim…
Search for radio recombination lines towards the gravitational lens PKS 1830-211
Niruj R. Mohan, K. R. Anantharamaiah, W. M. Goss
A search for radio recombination lines near 20 cm at z=0.193 and z=0.886 towards the gravitational lens system PKS 1830-211 has yielded upper limits on the line optical depth of 5…
Radio recombination lines from starburst galaxies : high and low density ionized gas
Niruj R. Mohan, K. R. Anantharamaiah, W. M. Goss
Radio recombination lines (RRL) at 8 GHz and 15 GHz detected from four starburst galaxies are shown to arise in compact high density HII regions, which are undetectable below ~4 GH…
High Rydberg State Carbon Recombination Lines from Interstellar Clouds
K. R. Anantharamaiah, Nimisha G. Kantharia
We report observations of carbon recombination lines near 34.5 MHz (qunatum number n=578) and 325 MHz (n=272) made towards Cas A, the Galactic centre and about ten other directions…
Ionized Gas in the SgrA Complex - VLA Observations of H168alpha and H270alpha Recombination Lines
K. R. Anantharamaiah, A. Pedlar, W. M. Goss
Radio recombination lines at a wavelength of 20 cm reveals the presence of an extended component of ionized gas of lower density in the Sgr A complex. This component extends well b…