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We describe three real time data analysis systems implemented during the third phase of the OGLE survey (OGLE-III). The EWS system is designed to detect on-going microlensing events. The EEWS system monitors the microlensing phenomena for…

Astrophysics · Physics 2011-05-05 A. Udalski

Eclipses and pulsations are the two primary ways in which the physical properties of stars can be deduced and used to improve our understanding of stellar theory. An obvious idea is to combine these two analyses into the study of pulsating…

Solar and Stellar Astrophysics · Physics 2025-01-29 John Southworth

AstroStat is an easy-to-use tool for performing statistical analysis on data. It has been designed to be compatible with Virtual Observatory (VO) standards thus enabling it to become an integral part of the currently available collection of…

Astronomy has a distinguished tradition of using technology to accelerate the quality and effectiveness of science, and data-intensive initiatives such as the Virtual Observatory lead the way amongst other fields of science. However,…

Astrophysics · Physics 2007-05-23 Ray P Norris

Modern scientific data mainly consist of huge datasets gathered by a very large number of techniques and stored in very diversified and often incompatible data repositories. More in general, in the e-science environment, it is considered as…

Instrumentation and Methods for Astrophysics · Physics 2010-10-20 M. Brescia , G. Longo , F. Pasian

In the framework of the Europlanet-RI program, a prototype of Virtual Observatory dedicated to Planetary Science was defined. Most of the activity was dedicated to the elaboration of standards to retrieve and visualize data in this field,…

Instrumentation and Methods for Astrophysics · Physics 2017-05-25 S. Erard , B. Cecconi , P. Le Sidaner , J. Berthier , F. Henry , C. Chauvin , N. Andre , V. Genot , C. Jacquey , M. Gangloff , N. Bourrel , B. Schmitt , M. T. Capria , G. Chanteur

Image processing has always been a topic of significant importance to society. Recently, this field has gained considerable prominence due to the development of intelligent systems. In this work, we present a new method of image processing…

Data Analysis, Statistics and Probability · Physics 2024-12-25 Monalisa Cavalcante , José Araújo , José Holanda

We introduce AstroSim, a Second Life based prototype application for synchronous collaborative visualization targeted at astronomers.

Instrumentation and Methods for Astrophysics · Physics 2016-11-17 Arturo Nakasone , Helmut Prendinger , Simon Holland , Piet Hut , Jun Makino , Kenichi Miura

In the era of "big data" and with the advent of web 2.0 technologies, ESASky (http://sky.esa.int) aims at providing a modern and visual way to access astronomical science-ready data products and metadata. The main goal of the application is…

We present AstroWISP: a collection of image processing tools for source extraction, background determination, point spread function/pixel response function fitting, and aperture photometry. AstroWISP is particularly well-suited for working…

Instrumentation and Methods for Astrophysics · Physics 2025-09-03 Kaloyan Penev , Angel Romero , S. Javad Jafarzadeh , Olivier Guyon , Wilfred Gee , Preethi Krishnamoorthy

The all sky surveys done by the Palomar Observatory Schmidt, the European Southern Observatory Schmidt, and the United Kingdom Schmidt, the InfraRed Astronomical Satellite and the 2 Micron All Sky Survey have proven to be extremely useful…

Astrophotonics is the application of versatile photonic technologies to channel, manipulate, and disperse guided light from one or more telescopes to achieve scientific objectives in astronomy in an efficient and cost-effective way. The…

ImageJ is a graphical user interface (GUI) driven, public domain, Java-based, software package for general image processing traditionally used mainly in life sciences fields. The image processing capabilities of ImageJ are useful and…

Instrumentation and Methods for Astrophysics · Physics 2017-09-27 Karen A. Collins , John F. Kielkopf , Keivan G. Stassun , Frederic V. Hessman

Electronically Assisted Astronomy consists in capturing deep sky images with a digital camera coupled to a telescope to display views of celestial objects that would have been invisible through direct observation. This practice generates a…

Instrumentation and Methods for Astrophysics · Physics 2023-11-20 Olivier Parisot , Pierrick Bruneau , Patrik Hitzelberger

The quality of modern astronomical data, the power of modern computers and the agility of current image-processing software enable the creation of high-quality images in a purely digital form. The combination of these technological…

Astrophysics · Physics 2008-11-26 T. A. Rector , Z. G. Levay , L. M. Frattare , J. English , K. Pu'uohau-Pummill

The \emph{Wide-field Infrared Survey Explorer} has surveyed the entire sky at four infrared wavelengths with greatly improved sensitivity and spatial resolution compared to its predecessors, the \emph{Infrared Astronomical Satellite} and…

Astronomers have come to recognize the benefits of photonics, often in combination with optical systems, in solving longstanding experimental problems in Earth-based astronomy. Here, we explore some of the recent advances made possible by…

Instrumentation and Methods for Astrophysics · Physics 2019-10-02 Barnaby Norris , Joss Bland-Hawthorn

We have developed a software pipeline, AutoWISP, for extracting high-precision photometry from citizen scientists' observations made with consumer-grade color digital cameras (digital single-lens reflex, or DSLR, cameras), based on our…

Instrumentation and Methods for Astrophysics · Physics 2025-07-22 Angel E. Romero , Kaloyan Penev , S. Javad Jafarzadeh , Zoltan Csubry , Joel D. Hartman , Gaspar A. Bakos

In this paper we show how advanced visualization tools can help the researcher in investigating and extracting information from data. The focus is on VisIVO, a novel open source graphics application, which blends high performance…

The prevalence of AI-generated imagery has raised concerns about the authenticity of astronomical images, especially with advanced text-to-image models like Stable Diffusion producing highly realistic synthetic samples. Existing detection…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Mohammed Talha Alam , Raza Imam , Mohsen Guizani , Fakhri Karray