Division B commission 25: Astronomical photometry and polarimetry

Alistair Walker, Saul Adelman, Eugene Milone, Barbara Anthony-Twarog, Pierre Bastien, Wen Ping Chen, Steve Howell, Jens Knude, Donald Kurtz, Antonio Mario Magalhães, John Menzies, Allyn Smith, Kevin Volk

Research output: Contribution to journalArticlepeer-review


Commission 25 (C25) deals with the techniques and issues involved with the measurement of optical and infrared radiation intensities and polarization from astronomical sources. As such, in recent years attention has focused on photometric standard stars, atmospheric extinction, photometric passbands, transformation between systems, nomenclature, and observing and reduction techniques. At the start of the trimester C25 changed its name from Stellar Photometry and Polarization to Astronomical Photometry and Polarization so as to explicitly include in its mandate particular issues arising from the measurement of resolved sources, given the importance of photometric redshifts of distant galaxies for many of the large photometric surveys now underway. We begin by summarizing commission activities over the 2012-2014 period, follow with a report on Polarimetry, continue with Photometry topics that have been of interest to C25 members, and conclude with a Vision for the Future.

Original languageEnglish
Pages (from-to)159-170
Number of pages12
JournalProceedings of the International Astronomical Union
Issue numberT29A
StatePublished - 1 Aug 2015


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