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Are all high Luminosity IRAS Galaxies Interacting?

Published online by Cambridge University Press:  03 August 2017

K.J. Leech ,
M. Rowan-Robinson ,
A. Lawrence  and
J.D. Hughes
K.J. Leech
Affiliation:
Sch of Math Sci, Queen Mary and Westfield College, Mile End Rd, London E1 4NS. Dept. of Physics, Queen Mary and Westfield College, Mile End Rd, London E1 4NS. Five College Astronomy Department, Amherst, Massachusetts MA 01003, U.S.A.
M. Rowan-Robinson
Affiliation:
Sch of Math Sci, Queen Mary and Westfield College, Mile End Rd, London E1 4NS. Dept. of Physics, Queen Mary and Westfield College, Mile End Rd, London E1 4NS. Five College Astronomy Department, Amherst, Massachusetts MA 01003, U.S.A.
A. Lawrence
Affiliation:
Sch of Math Sci, Queen Mary and Westfield College, Mile End Rd, London E1 4NS. Dept. of Physics, Queen Mary and Westfield College, Mile End Rd, London E1 4NS. Five College Astronomy Department, Amherst, Massachusetts MA 01003, U.S.A.
J.D. Hughes
Affiliation:
Sch of Math Sci, Queen Mary and Westfield College, Mile End Rd, London E1 4NS. Dept. of Physics, Queen Mary and Westfield College, Mile End Rd, London E1 4NS. Five College Astronomy Department, Amherst, Massachusetts MA 01003, U.S.A.

Abstract

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We have surveyed a sample of 40 ultraluminous (L60μm > 1012L using H0 = 50 km s−1 Mpc−1 and Ω0 = 1) and 7 high-luminosity (11.7 < log(L60μm) < 12.0) IRAS galaxies with the aim of obtaining a better estimate of the fraction of ultraluminous IRAS galaxies in interacting systems. This is the largest imaging survey of such high-luminosity galaxies. The galaxies were selected from the North Galactic Wedge (Lawrence et al. 1986) and QDOT (Rowan-Robinson et al. 1990 MN in press) area and flux limited IRAS galaxy samples with complete z information. Imaging observations were carried out at the Observatorio del Roque de los Muchachos (La Palma) using the CCD imaging system at the f/3 focus of the 2.5m Isaac Newton Telescope. The average total exposure time per galaxy was 2000s, reaching a limiting isophote of R=26.

Type
XIII- IRAS Ultraluminous Objects and Quasars
Information
Symposium - International Astronomical Union , Volume 146: Dynamics of Galaxies and their Molecular Cloud Distributions , 1991 , pp. 432
Copyright
Copyright © Kluwer 1991 

References

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