The IRAS bright galaxy sample. V. Multibeam photometry of galaxies with L(IR) greater than 10 to the 11th solar luminosities

Journal Article · Sun Jul 01 04:00:00 EDT 1990 · Astronomical Journal; (USA)

DOI:https://doi.org/10.1086/115491· OSTI ID:6596872

Carico, D P; Sanders, D B; Soifer, B T; Matthews, K; Neugebauer, G ^[1]

---

1. Palomar Observatory, Pasadena, CA (USA)

With a view to studying the spatial distribution of the near-IR emission in luminous IRAS galaxies, 47 galaxies with IR luminosities greater than 10 to the 11th solar luminosities have been measured at 1.3, 1.65, and 2.2 microns with beam diameters of 17, 33, and 55 arcsec, and used in conjunction with 5 and 10 arcsec observations. the unusually red near-IR colors are found to be confined to the nuclear regions, while the outer disk regions have near-IR colors appropriate to a normal stellar population. Since most of the IR luminosity is coming from the nuclei, the global near-IR properties of IR luminous galaxies are not good tracers of IR activity. 36 refs.

• OSTI ID: 6596872
• Journal Information: Astronomical Journal; (USA), Journal Name: Astronomical Journal; (USA) Vol. 100; ISSN 0004-6256; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BRIGHTNESS
DISTRIBUTION
ELECTROMAGNETIC RADIATION
GALAXIES
GALAXY NUCLEI
INFRARED RADIATION
LUMINOSITY
NEAR INFRARED RADIATION
OPTICAL PROPERTIES
PHOTOMETRY
PHYSICAL PROPERTIES
RADIATIONS
SPATIAL DISTRIBUTION