An optimal multihump filter for photometric redshifts

Tamás Budavári, Alexander S. Szalay, István Csabai, Andrew J. Connolly, Zlatan Tsvetanov

Research output: Contribution to journalArticle

10 Citations (Scopus)


We propose a novel type of filter for multicolor imaging to improve on the photometric redshift estimation of galaxies. An extra filter - specific to a certain photometric system - may be utilized with high efficiency. We present a case study of the Hubble Space Telescope's Advanced Camera for Surveys and show that one extra exposure could cut down the mean square error on photometric redshifts by 34% over the z < 1.3 redshift range.

Original languageEnglish
Pages (from-to)3266-3269
Number of pages4
JournalAstronomical Journal
Issue number6
Publication statusPublished - Jun 1 2001



  • Galaxies: distances and redshifts
  • Galaxies: photometry
  • Instrumentation: miscellaneous

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Budavári, T., Szalay, A. S., Csabai, I., Connolly, A. J., & Tsvetanov, Z. (2001). An optimal multihump filter for photometric redshifts. Astronomical Journal, 121(6), 3266-3269.