567 citations · 3.5k across the 87 of their papers we have counts for
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Quasar Parallax: a Method for Determining Direct Geometrical Distances to Quasars
Martin Elvis, Margarita Karovska
We describe a novel method to determine direct geometrical distances to quasars that can measure the cosmological constant, Lambda, with minimal assumptions. This method is equival…
Analysis of H2 Emission from Mira B in UV Spectra from HST
Brian E. Wood, Margarita Karovska, John C. Raymond
We analyze Ly-alpha fluoresced H2 lines observed in the UV spectrum of Mira B. We identify 13 different sequences fluoresced by 13 different H2 transitions within the Ly-alpha line…
X-ray Arc Structures in Chandra Images of NGC5128 (Centaurus A)
M. Karovska, G. Fabbiano, F. Nicastro +3
We describe results from our initial study of the diffuse X-ray emission structures in NGC 5128 (Cen A) using the Chandra X-ray Observatory observations. The high-angular resolutio…
An IR view of mass loss in Long Period Variables
Massimo Marengo, Margarita Karovska, Zeljko Ivezic
We have investigated the mass loss processes in Long Period Variables, by combining radiative transfer modeling with mid-IR imaging and spectroscopic observations. We find a correl…
Smoking Quasars: a New Source for Cosmic Dust
Martin Elvis, Massimo Marengo, Margarita Karovska
Although dust is widely found in astrophysics, forming dust is surprisingly difficult. The proper combination of low temperature (<2000 K) and high density is mainly found in the w…