4 papers
Modelling the scattering by porous aggregate dust grains in the Far-Ultraviolet halos of Spica and Achernar
Nilanjana Dey Choudhury, P. Shalima, Keerthana U. +1
Far-Ultraviolet (FUV) halos have been detected around six bright stars by Murthy and Henry (2011) using GALEX observations. These halos are thought to be caused by forward scatteri…
Modeling the Cosmic Ultraviolet Background at the North Galactic Pole
Jayant Murthy
I explore models of the dust-scattered component of the Cosmic Ultraviolet Background (CUVB) at the North Galactic Pole (NGP) in order to develop a framework for calculating the du…
The Lyman alpha Sky as Observed by New Horizons
G. R. Gladstone, J. M. Shull, W. R. Pryor +22
During September 2023 the Alice ultraviolet spectrograph on the New Horizons (NH) spacecraft was used to map diffuse Lyman alpha (Lya) emission over most of the sky, at a range of…
Excess Ultraviolet Emission at High Galactic Latitudes: A New Horizons View
Jayant Murthy, J. Michael Shull, Marc Postman +11
We present new observations of the cosmic ultraviolet background (CUVB) at high Galactic latitudes (), made using the Alice UV spectrograph on board the New Horiz…