ScholarLens Back to search
1969•The Astrophysical JournalRequires access

Sagittarius a: Observations of the Galactic Center at 3.3 MM

Michael M. Dworetsky, EUGENE E. EPSTEIN, William G. Fogarty, John W. Montgomery

Open publisher page 8 citations

Abstract

Observations at 3.3 mm of the radio source Sagittarius A have been used to obtain a flux estimate of 36(+1O, -5) X 1O~6 W m~ Hz1. This value is approximately half that predicted by extrapolation of results at longer wavelengths. The mean half-intensity diameter of Sgr A appears to be smaller (<1 6) at 3.3 mm than at longer wavelengths (`-..-`2' X 3' at 30 cm), supporting the suggestion of Maxwell and Taylor that the apparent size of Sgr A decreases with increasing radio frequency

About this research paper

What this paper is about

Observations at 3.3 mm of the radio source Sagittarius A have been used to obtain a flux estimate of 36(+1O, -5) X 1O~6 W m~ Hz1. This value is approximately half that predicted by extrapolation of results at longer wavelengths. The mean half-intensity diameter of Sgr A appears to be smaller (<1 6) at 3.3 mm than at longer wavelengths (`-..-`2' X 3' at 30 cm), supporting the suggestion of Maxwell and Taylor that the apparent size of Sgr A decreases with increasing radio frequency

Why it matters

OpenAlex reports 8 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Observations at 3.3 mm of the radio source Sagittarius A have been used to obtain a flux estimate of 36(+1O, -5) X 1O~6 W m~ Hz1. This value is approximately half that predicted by extrapolation of results at longer wavelengths. The mean half-intensity diameter of Sgr A appears to be smaller (<1 6) at 3.3 mm than at longer wavelengths (`-..-`2' X 3' at 30 cm), supporting the suggestion of Maxwell and Taylor that the apparent size of Sgr A decreases with increasing radio frequency

Key concepts: Sagittarius A*, Physics, Galactic Center, Astrophysics, Extrapolation, Sagittarius, Center (category theory), Wavelength

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Sagittarius a: Observations of the Galactic Center at 3.3 MM — Research Paper | ScholarLens