Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...133...93c&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 133, no. 1, April 1984, p. 93-98.
Astronomy and Astrophysics
Astronomy
8
Magellanic Clouds, Nebulae, Radio Sources (Astronomy), Continuous Spectra, Density Distribution, Electron Energy, H Alpha Line, Line Spectra, Radio Spectra, Thermodynamic Equilibrium
Scientific paper
A low density envelope in the 30 Doradus region has been observed with the Instituto Argentino de Radioastronomia (IAR) radiotelescope (HBPW = 34 minutes) in the radiocontinuum at 1410 MHz and in the (H-166)-Alpha recombination line. A three-component thermal model with Gaussian density distributions is used to analyze the radio-continuum spectrum. The model simulates the almost flat spectrum which characterizes the region between 85 and 5000 MHz. The low density envelope represents the third component of the model, and it is found to have a mass of M = 1.7 x 10 to the 7th solar mass units. On the basis of observational measurements it is calculated that 2.7 x 10 to the 52nd photons per second are needed to ionize the three components of the model. The physical parameters of the low density region are derived from the line and continuum data, and the possible existence of clumps of ionized gas is discussed.
Cersosimo Juan Carlos
Loiseau Nora
No associations
LandOfFree
A low density envelope in the 30 Doradus nebula does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A low density envelope in the 30 Doradus nebula, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A low density envelope in the 30 Doradus nebula will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1498080