An infrared jet in Centaurus A - A link to the extranuclear activity in distant radio galaxies

Journal Article · Tue Jan 01 04:00:00 EST 1991 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/169541· OSTI ID:6104358

Joy, M; Harvey, P M; Tollestrup, E V; Sellgren, K; Mcgregor, P J ^[1]

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1. NASA, Marshall Space Flight Center, Huntsville, AL (USA) Texas Univ., Austin (USA) Hawaii Univ., Honolulu (USA) Mount Stromlo and Siding Spring Observatories, Canberra (Australia)

High-resolution NIR images of the visually obscured central region of Centaurus A (NGC 5128) were obtained with the University of Texas array camera on the AAT in June 1988, in order to investigate the effect of the active nucleus on the surrounding galaxy. The J (1.25 micron), H (1.65 micron), and K (2.2 micron) images of the central 40 arcsec of the galaxy revealed an emission feature extending about 10 arcsec northeast of the nucleus at the same position angle as the X-ray and radio jets. This jet is most prominent at the 1.25 micron wavelength, where its brightness was comparable to that of the nucleus. The observed properties of the infrared jet were found to be similar to those seen in distant radio sources. 31 refs.

• OSTI ID: 6104358
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 366; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONFIGURATION
COSMIC DUST
COSMIC RADIO SOURCES
DUSTS
ELECTROMAGNETIC RADIATION
ELLIPTICAL CONFIGURATION
EMISSION SPECTRA
ENERGY RANGE
ENERGY SPECTRA
GALAXIES
GALAXY NUCLEI
INFRARED RADIATION
NEAR INFRARED RADIATION
PLASMA JETS
RADIATIONS
RADIO GALAXIES
RELATIVISTIC RANGE
SPECTRA
SPECTROSCOPY