activity
19962006
most citedThe evolution of ultraviolet emission lines from the circumstellar material surrounding SN 1987A

67 citations · 327 across the 18 of their papers we have counts for

collaborators

18 papers

physics.soc-ph2006★ 1 cited

Report on the Twelfth United Nations/European Space Agency Workshop on Basic Space Science

W. Wamsteker, H. J. Haubold

Pursuant to recommendations of the United Nations Conference on the Exploration and Peaceful Uses of Outer Space (UNISPACE III) and deliberations of the United Nations Committee on…

astro-ph2004★ 12 cited

Time series analysis in Astronomy: limits and potentialities

R. Vio, N. R. Kristensen, H. Madsen +1

In this paper we consider the problem of the limits concerning the physical information that can be extracted from the analysis of one or more time series (light curves) typical of…

astro-ph2004★ 32 cited

Least-squares methods with Poissonian noise: an analysis and a comparison with the Richardson-Lucy algorithm

R. Vio, J. Bardsley, W. Wamsteker

It is well-known that the noise associated with the collection of an astronomical image by a CCD camera is, in large part, Poissonian. One would expect, therefore, that computation…

physics.soc-ph2004★ 1 cited

Developing Basic Space Science World Wide: Progress Report

H. J. Haubold, W. Wamsteker

The UN/ESA Workshops on Basic Space Science is a long-term effort for the development of astronomy and regional and international co-operation in this field on a world wide basis,…

astro-ph2004

Estimation of Regularization Parameters in Multiple-Image Deblurring

R. Vio, P. Ma, W. Zhong +3

We consider the estimation of the regularization parameter for the simultaneous deblurring of multiple noisy images via Tikhonov regularization. We approach the problem in three wa…

astro-ph2003★ 16 cited

A simple but efficient algorithm for multiple-image deblurring

R. Vio, J. Nagy, L. Tenorio +1

We consider the simultaneous deblurring of a set of noisy images whose point spread functions are different but known and spatially invariant, and the noise is Gaussian. Currently…