75 citations · 167 across the 7 of their papers we have counts for
7 papers
Aqua MODIS Electronic Crosstalk on SMWIR Bands 20 to 26
G. R. Keller, Z. Wang, A. Wu +1
Aqua MODIS Moon images obtained with bands 20 to 26 (3.66 - 4.55 and 1.36 - 1.39 m) during scheduled lunar events show evidence of electronic crosstalk contamination of the resp…
Aqua MODIS Band 24 Crosstalk Striping
Graziela R. Keller, Zhipeng Wang, Aisheng Wu +1
Aqua MODIS, unlike its predecessor on board the Terra spacecraft, had always been thought to have been spared from significant deleterious impacts of electronic crosstalk on its im…
UV spectral analysis of very hot H-deficient [WCE]-type central stars of planetary nebulae: NGC 2867, NGC 5189, NGC 6905, Pb 6, and Sand 3
Graziela R. Keller, Luciana Bianchi, Walter J. Maciel
We analysed UV FUSE, IUE, and HST/STIS spectra of five of the hottest [WCE]-type central stars of planetary nebulae: NGC 2867, NGC 5189, NGC 6905, Pb 6, and Sand 3. The analysis le…
A New Grid of Synthetic Spectra for the Analysis of [WC]-type Central Stars of Planetary Nebulae
Graziela R. Keller, James E. Herald, Luciana Bianchi +2
We present a comprehensive grid of synthetic stellar-atmosphere spectra, suitable for the analysis of high resolution spectra of hydrogen-deficient post-Asymptotic Giant Branch (po…
On the influence of non-thermal pressure on the mass determination of galaxy clusters
T. F. Laganá, R. S. de Souza, G. R. Keller
(Abridged) The main purpose of this paper is to consider the contribution of all three non-thermal components to total mass measurements of galaxy clusters: cosmic rays, turbulence…
The Alpha Centauri Binary System: Atmospheric Parameters and Element Abundances
G. F. Porto de Mello, W. Lyra, G. R. Keller
The alpha Centauri binary system, owing to its duplicity, proximity and brightness, and its components' likeness to the Sun, is a fundamental calibrating object for the theory of s…