Observations of the nebulosities near SN 1987A

Journal Article · Mon Oct 01 04:00:00 EDT 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/185836· OSTI ID:6062646

Wampler, E J; Wang, L; Baade, D; Banse, K; D'Odorico, S ^[1]

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1. European Southern Observatory, Garching (Germany, F.R.)

Direct images of SN 1987A taken during periods of good seeing at La Silla Observatory are combined with spectra to map the velocity and spatial structure of the dust and gas that surround SN 1987A. The data from December 1989 show that the supernova is embedded in a filamentary nebula of mixed gases and dust that is morphologically and kinematically similar to planetary nebulae. The narrowness of the filaments, their shape, their radial velocities, and the lack of detectable expansion in the plane of the sky imply that this is a physical structure, not just the SN 1987A light curve seen reflected from a continuous sheet of background material. This inner, highly structured nebula is immersed in an outer, larger nebula which may be due to reflected light from SK -69 deg 202, the progenitor of SN 1987A. Alternatively, if it is due to reflected light from SN 1987A, it must lie in front of the supernova. 24 refs.

• OSTI ID: 6062646
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 362; 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
CHARGE-COUPLED DEVICES
COSMIC DUST
COSMIC GASES
DUSTS
ERUPTIVE VARIABLE STARS
FLUIDS
GALACTIC EVOLUTION
GALAXIES
GASES
INTERSTELLAR SPACE
LUMINOSITY
MAGELLANIC CLOUDS
NEBULAE
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SEMICONDUCTOR DEVICES
SPACE
SPECTRA
SPECTROSCOPY
STARS
SUPERNOVAE
ULTRAVIOLET SPECTRA
VARIABLE STARS