Abstract
view Abstract Citations (41) References (26) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Optical Identification of Dust within the Crab Nebula's Filaments Fesen, Robert ; Blair, William P. Abstract Optical continuum images of the Crab Nebula are presented which reveal numerous, small dark spots across the face of the Crab's amorphous synchrotron nebula. These spots range in size from being unresolved at 0.8-arcsec resolution to about 5 arcsec, exhibit Delta(m)4470 = 0.08-0.44, and are most visible in the shorter-wavelength continuum images. Comparisons with images taken using interference filters centered on various emission lines indicate that these dark features are coincident with forbidden O I, C I, and S II bright cores of selected filaments. This positional coincidence plus a wavelength dependence similar to that exhibited by conventional interstellar dust establishes the presence of dust within at least some of the Crab Nebula's filaments. Publication: The Astrophysical Journal Pub Date: March 1990 DOI: 10.1086/185676 Bibcode: 1990ApJ...351L..45F Keywords: Cosmic Dust; Crab Nebula; Interstellar Matter; Supernova Remnants; Supernovae; Continuous Spectra; Emission Spectra; Forbidden Transitions; Synchrotron Radiation; Astrophysics; INTERSTELLAR: GRAINS; NEBULAE: CRAB NEBULA; NEBULAE: SUPERNOVA REMNANTS; STARS: SUPERNOVAE full text sources ADS | data products SIMBAD (8)
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