937 citations · 1.6k across the 52 of their papers we have counts for
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A Cryogenic Wideband (2.5-14 GHz) Receiver system for the Arecibo 12m Telescope
D. Anish Roshi, Phil Perillat, Felix Fernandez +5
In this paper we present details of the construction of a wideband, cryogenic receiver and its successful commissioning on the Arecibo 12m telescope. The cryogenic receiver works i…
The Next Generation Arecibo Telescope: A preliminary study
D. Anish Roshi, Sean Marshall, Amit Vishwas +9
The Next Generation Arecibo Telescope (NGAT) was a concept presented in a white paper Roshi et al. (2021) developed by members of the Arecibo staff and user community immediately a…
The Future Of The Arecibo Observatory: The Next Generation Arecibo Telescope
D. Anish Roshi, N. Aponte, E. Araya +71
The Arecibo Observatory (AO) is a multidisciplinary research and education facility that is recognized worldwide as a leading facility in astronomy, planetary, and atmospheric and…
Commissioning the HI Observing Mode of the Beamformer for the Cryogenically Cooled Focal L-band Array for the GBT (FLAG)
N. M. Pingel, D. J. Pisano, M. Ruzindana +19
We present the results of commissioning observations for a new digital beamforming back end for the Focal plane L-band Array for the Robert C. Byrd Green Bank Telescope (FLAG), a c…
Phased Array Feed Model Equations corresponding to two definitions of embedded beam pattern
D. Anish Roshi
In this report, we present the phased array feed (PAF) model equations for two definitions of embedded beam patterns. In Roshi \& Fisher (2016), we presented the PAF model by defin…
A Model for Phased Array Feed
D. Anish Roshi, J. Richard Fisher
In this report we present a model for phased array feed (PAF) and compare the model predictions with measurements. A theory for loss-less PAF is presented first. To develop the the…