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What can we learn from 1.2 Jy IRAS fluxes?

Rauzy, S., and Hendry, M. (2000) What can we learn from 1.2 Jy IRAS fluxes? Astronomical Society of the Pacific Conference Series, 201 . 274 -277. ISSN 1050-3390

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Publisher's URL: http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2000ASPC..201..274R&db_key=AST&data_type=HTML&format=

Abstract

We present a new method for fitting peculiar velocity models to complete flux limited magnitude-redshifts catalogues, using the luminosity function of the sources as a distance indicator. The method is characterized by its robustness. In particular, no assumptions are made concerning the spatial distribution of sources and their luminosity function. Moreover the inclusion of additional observables, such as for example the one carrying the Tully-Fisher information, is straightforward. As an illustration of the method, the predicted IRAS peculiar velocity model is herein tested using the fluxes of the IRAS 1.2 Jy sample as the distance indicator. The results suggest that this model, while successful in reproducing locally the cosmic flow, fails to describe the kinematics on larger scales.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s):Hendry, Prof Martin
Authors: Rauzy, S., and Hendry, M.
Subjects:Q Science > QB Astronomy
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Astronomical Society of the Pacific Conference Series
ISSN:1050-3390

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