Results 1 to 10 of about 199,660 (193)
Astronomical Optical Interferometry. I. Methods and Instrumentation [PDF]
Previous decade has seen an achievement of large interferometricprojects including 8-10m telescopes and 100m class baselines. Modern computerand control technology has enabled the interferometric combination of lightfrom separate telescopes also in the ...
Jankov, S.
doaj +7 more sources
Bayesian methods of astronomical source extraction [PDF]
We present two new source extraction methods, based on Bayesian model selection and using the Bayesian Information Criterion (BIC). The first is a source detection filter, able to simultaneously detect point sources and estimate the image background. The
Pilbratt G. L. +3 more
core +4 more sources
Revitalizing Astronomical Azimuth Determination: Integrating Modern Computing with Traditional Techniques [PDF]
It is not widely recognized today that astronomical methods for azimuth determination continue to rank among the most accurate techniques for establishing orientation.
Luigi Barazzetti
doaj +2 more sources
Plasma Diagnostics in the Era of Integral Field Spectroscopy
To understand the physical conditions of various gaseous systems, plasma diagnostics must be performed properly. To that end, it is equally important to have extinction correction performed properly, even before performing plasma diagnostics.
Toshiya Ueta
doaj +1 more source
Reconstruction of ancient Egyptian sundials [PDF]
The article presents the results of a study of the design features of vertical and L-shaped ancient Egyptian sundials, developed their models, on the basis of which the reconstruction of the sundial was carried out.
Vodolazhskaya, L.N.
doaj +1 more source
Dispersion Characteristics of the Multi-mode Fiber-fed VIPA Spectrograph
A high-resolution ( ${ \mathcal R }\gt {10}^{5}$ ), multi-mode fiber-fed spectrograph on large telescopes with a reasonable size is desirable in astronomy.
Xiaoming Zhu +4 more
doaj +1 more source
A Multilevel Scheduling Framework for Distributed Time-domain Large-area Sky Survey Telescope Array
Telescope arrays are receiving increasing attention due to their promise of higher resource utilization, greater sky survey area, and higher frequency of full space-time monitoring than single telescopes.
Yajie Zhang +7 more
doaj +1 more source
Solving the Traveling Telescope Problem with Mixed-integer Linear Programming
The size and complexity of modern astronomical surveys has grown to the point where, in many cases, traditional human scheduling of observations are tedious at best and impractical at worst.
Luke B. Handley +2 more
doaj +1 more source
Scaled Gradient Projection Methods for Astronomical Imaging [PDF]
This book is a collection of 19 articles which reflect the courses given at the Collège de France/Summer school “Reconstruction d'images − Applications astrophysiques“ held in Nice and Fréjus, France, from June 18 to 22, 2012. The articles presented in this volume address emerging concepts and methods that are useful in the complex process of improving
M. Bertero +3 more
openaire +3 more sources
Astronomical observatory site selection using fuzzy AHP and BWM methods [PDF]
Establishing an observatory often involves complex decisions, such as choosing a site based on multiple conflicting criteria. In this study, we develop a multi-criteria decision analysis process by combining Geographic Information System (GIS) analysis ...
Yılmaz A.
doaj +1 more source

