305 citations · 1.4k across the 21 of their papers we have counts for
21 papers
Modeling molecular hyperfine line emission
Eric Keto, George Rybicki
In this paper we discuss two approximate methods previously suggested for modeling hyperfine spectral line emission for molecules whose collisional transitions rates between hyperf…
Thermal X-rays from Millisecond Pulsars: Constraining the Fundamental Properties of Neutron Stars
Slavko Bogdanov, Jonathan E. Grindlay, George B. Rybicki
Abridged) We model the X-ray properties of millisecond pulsars (MSPs) by considering hot spot emission from a weakly magnetized rotating neutron star (NS) covered by an optically-t…
Comptonization in the X-ray Spectra of Radio Millisecond Pulsars
Slavko Bogdanov, Jonathan E. Grindlay, George B. Rybicki
The majority of X-ray-detected rotation-powered millisecond pulsars (MSPs) appear to exhibit predominantly thermal emission, believed to originate from the heated magnetic polar ca…
Constraints on Neutron Star Properties from X-ray Observations of Millisecond Pulsars
Slavko Bogdanov, George B. Rybicki, Jonathan E. Grindlay
We present a model of thermal X-ray emission from hot spots on the surface of a rotating compact star with an unmagnetized light-element atmosphere. An application to ROSAT, Chandr…
X-rays from Radio Millisecond Pulsars: Comptonized Thermal Radiation
Slavko Bogdanov, Jonathan E. Grindlay, George B. Rybicki
X-ray emission from many rotation-powered millisecond pulsars (MSPs) is observed to be of predominantly thermal nature. In PSR J0437--4715, the nearest MSP known, an additional fai…
Improved Fokker-Planck Equation for Resonance Line Scattering
George B. Rybicki
A new Fokker-Planck equation is developed for treating resonance line scattering, especially relevant to the treatment of Lyman alpha in the early universe. It is a "corrected" for…