Comparative morphological analysis of Puppis A at radio, infrared, optical, and X-ray wavelengths

Journal Article · Thu Feb 01 04:00:00 EST 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/168378· OSTI ID:6851917

Arendt, R G; Dwek, E; Petre, R; Dickel, J R; Roger, R S ^[1]

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1. NASA, Goddard Space Flight Center, Greenbelt, MD (USA) Illinois Univ., Urbana (USA) Dominion Radio Astrophysical Observatory, Penticton (Canada)

This paper presents a new radio image of the supernova remnant Puppis A obtained with the Molonglo Observatory synthesis telescope (MOST) and the Parkes telescope, and infrared images of Puppis A and its surrounding medium obtained with the IRAS, and compares the remnant morphologies at radio, infrared, optical, and X-ray wavelengths. The radio image, which includes large-scale emission, shows a clumpy shell of emission with moderate central brightness. The infrared observations have the advantage of offering a detailed look at the medium into which the remnant is expanding. From the IR data, evidence is found of the remnant's expansion into a strong density gradient (distinct from the more gentle gradient of the Galactic plane). A strong isolated knot of enhanced X-ray and radio emission is a region of enhanced infrared emission as well. Detailed correlative analysis of the infrared, radio, and X-ray emission shows that the IR emission correlates very well with the X-ray emission, confirming the idea that the IR emission arises from dust that is collisionally heated by the shocked gas. 29 refs.

• OSTI ID: 6851917
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 350; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASTRONOMY
COMPARATIVE EVALUATIONS
CORRELATIONS
COSMIC RADIO SOURCES
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
ELECTROMAGNETIC RADIATION
EXPANSION
HEATING
IMAGES
INFRARED RADIATION
INTERSTELLAR SPACE
IONIZING RADIATIONS
MORPHOLOGY
RADIATIONS
RADIOASTRONOMY
SPACE
SPECTRA
SUPERNOVA REMNANTS
VISIBLE RADIATION
VISIBLE SPECTRA
X RADIATION