3 papers
astro-ph.IM2022
Scattered Light in STIS Grating G230LB
Guy Worthey, Tathagata Pal, Islam Khan +2
The G230LB grating used with STIS's CCD detector scatters red light. In red objects, the scattered light mingles with the ultraviolet signal, causing spurious short-wavelength flux…
astro-ph.CO2021
(P)reheating Effects of a Constrained Kähler Moduli Inflation Model
Islam Khan, Guy Worthey, Aaron C. Vincent
In this talk, I discuss the effects, viability, and predictions of the string-theory-motivated Kähler Moduli Inflation I (KMII) potential, coupled to a light scalar field , whic…
astro-ph.SR2018
Hot Star Extension to the Hubble Space Telescope Stellar Spectral Library
Islam Khan, Guy Worthey
Libraries of stellar spectra find many uses in astrophysics, from photometric calibration to stellar population synthesis. We present low resolution spectra of 40 stars from 0.2 mi…