Abstract
Methods are presented for deriving the density field and the resulting linear-theory velocity field from an all-sky redshift survey of IRAS galaxies. The luminosity function of IRAS galaxies is measured using a maximum-likelihood technique independent of density inhomogeneities. Within its range of validity, it is found to be in excellent agreement with previously published luminosity functions. Self-consistent solutions for the true spatial positions of the IRAS galaxies are found, given their redshifts and peculiar velocities. The ambiguity inherent in triple-valued regions is overcome either by sufficient smoothing, or by using prior information from peculiar velocity maps obtained independently.
Original language | English (US) |
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Pages (from-to) | 380-393 |
Number of pages | 14 |
Journal | Astrophysical Journal |
Volume | 372 |
Issue number | 2 |
DOIs | |
State | Published - May 10 1991 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
Keywords
- Galaxies: redshifts
- Infrared: sources
- Luminosity function