Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...233..919j&link_type=abstract
Astrophysical Journal, Part 1, vol. 233, no. 3, Nov. 1, 1979, p. 919-924.
Astronomy and Astrophysics
Astrophysics
29
Interferometry, Planetary Nebulae, Radio Sources (Astronomy), Astronomical Observatories, Astrophysics, Brightness Temperature, Radiant Flux Density, Radio Astronomy
Scientific paper
Coordinates, dimensions, 4885-MHz flux densities, and brightness temperatures of K3-2, NGC 6833, Ps 1, II 5117, Me 2-2, Hb 12, Vy 1-1, and M1-5 are reported. In two other cases, H3-29 and H3-75, confused extended structure was detected in which the nebula could not be identified with certainty. He 2-467, M1-2, and Peterson's H-alpha object in M15 were also included in the observations but not detected with an upper limit of less than 10 mJy. The observations are compared with some of the previous optical and radio data, such as log S(H-beta). Distances are computed from the present data with standard assumptions. Corresponding linear radii range below 0.1 pc, among the smallest in previous distributions of radius.
Balick Bruce
Johnson Hugh M.
Thompson Richard A.
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