Mathematics – Logic
Scientific paper
Apr 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...176...25a&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 176, no. 1, April 1987, p. 25-33. Research supported by Universidad de Chile a
Mathematics
Logic
21
Astronomical Maps, Galactic Structure, Magellanic Clouds, Radio Galaxies, Continuous Spectra, Ellipticity, Flux Density, Isophotes, Symmetry, Synchrotron Radiation
Scientific paper
Observations of the LMC, obtained at 45 MHz with bandwidth 1 MHz using the University of Chile array at Maipu Radioastronomy Observatory from March 1984 to June 1985, are reported. The data are presented in tables, graphs, diagrams, and maps and characterized in detail. Features noted include a symmetric distribution of synchrotron radiation with concentric-ellipse isophotes, a 45-deg inclination of the assumed flat galactic disk, and a center at alpha = 05 h 28 + or - 1 min and delta = -69.4 + or - 0.2 deg (1950); node-line inclination 180 deg within 3.6 deg of the center and abrupt breaks beyond this distance in both N and S directions (indicating the presence of warps in the LMC); integrated flux density 3570 Jy; power-law spectral index -0.54; and radio luminosity (based on integration between 19.7 and 1410 MHz) 5 x 10 to the 36th erg/s.
Alvarez Hector
Aparici Juan
May Jorge
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