B3 – Commission B3 Astroinformatics and Astrostatistics


In most of the 20th century, astronomers investigated cosmic phenomena by careful study of individual objects or small samples of planets, stars, galaxies and diffuse media. Datasets were often modest in size with zero (photometry), one (spectra, light curves), or two (images) dimensions. But in the 21st century, increasing resources are devoted to wide-field astronomical surveys, three- or multi-dimensional data, and high-throughput instruments that produce peta-scale datasets and giga-scale samples. In addition to the growing tasks of data reduction, science analysis is becoming more complex. Astronomical insights require characterizing structure in images, spectra or time series. Astrophysical insights require fitting nonlinear, sometimes high-dimensional models to data. Modeling involves both small and large datasets.
IAU Commission B3 focuses on the statistical, computational methodological challenges arising in the various fields of astronomy.  It assists the astronomical community in learning existing, and developing new, advanced methodologies to accomplish its goals in this changing environment. The Commission encourages liaison with professional communities in the fields of statistics, applied mathematics and computer science, and with private enterprises. It sponsors meetings and discussions to promulgate advanced methodologies to seek the best scientific insights from the growing flow of data.

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Commission Members (271)

Under Division

Division B Facilities, Technologies and Data Science

Ashish Mahabal

California Institute of technology
Physics Mathematics Astronomy (PMA)
1200 E California Blvd
MC 249-17
Pasadena 91125
California (CA)
United States

Phone: +1 626 395 4201
Personal website: http://www.astro.caltech.edu/~aam
Organization website: http://www.astro.caltech.edu/

NCA adherence: United States

Last updated:
November 20, 2023

Stefano Andreon

Osservatorio Astronomico di Brera
via Brera 28
20121 Milano

Phone: +39 02 72320324
Personal website: http://www.brera.mi.astro.it/~andreon/
Organization website: http://www.brera.inaf.it/

NCA adherence: Italy

Last updated:
November 20, 2023

Didier Fraix-Burnet

Centre National de la Recherche Scientifique (CNRS)
Institut de Planétologie et d'Astrophysique de Grenoble (IPAG)
Université Grenoble Alpes
CS 40700
38058 Grenoble Cedex 9

Phone: +33 04 76 63 57 27
Personal website: https://loop.frontiersin.org/people/223813/bio
Organization website: https://ipag.osug.fr/identite_id97195.html

NCA adherence: France

Last updated:
November 20, 2023

Prajval Shastri

Indian Institute of Astrophysics (retd)
3 Good Earth Enclave
off Uttarahalli Road, Kengeri
Bengaluru 560 060

Phone: +91 9731439713
Personal website: http://www.prajvalshastri.wordpress.com

NCA adherence: India

Last updated:
November 20, 2023

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