scholarly journals Australian Journal of Physics Astrophysical Supplements

1969 ◽  
Vol 22 (6) ◽  
pp. 843
Keyword(s):  
Flux Density ◽  
Milky Way ◽  
Australian Journal ◽  
Peak Temperature ◽  
Contour Maps

This paper presents contour maps of the region of the Milky Way between longitudes 88� and 307�, latitudes �2� at 2650 MHz. A list of sources with values of peak temperature nd flux density is given.

scholarly journals Australian Journal of Physics Astrophysical Supplement

1976 ◽  
Vol 29 (5) ◽  
pp. 471
Author(s):  
JN Clarke ◽  
AG Little ◽  
BY Mills
Keyword(s):  
Flux Density ◽  
High Frequency ◽  
Magellanic Clouds ◽  
Australian Journal ◽  
The Other ◽  
Optical Data ◽  
Radio Sources ◽  
Angular Extent

The fourth catalogue of radio sources observed at 408 MHz with the Molonglo radiotelescope is presented. A total of 1349 sources is listed to a limiting flux density of 0�2 Jy, the catalogue being largely complete above 0� 25 Jy. The area of sky surveyed includes the Magellanic Clouds as well as a comparison region of similar angular extent. Detailed notes are provided on some of the Cloud sources, and maps are given for complex sources in the region of the Clouds. Those sources for which high-frequency or optical data are available are classified into two lists, one of Cloud members and the other of 'unidentified nonthermal sources', presumably not Cloud members.

scholarly journals A Low Latitude Survey from lII = 27° to 38° at 1410 and 2650 MHz

1969 ◽  
Vol 22 (1) ◽  
pp. 121 ◽  
Author(s):  
M Beard ◽  
FJ Kerr
Keyword(s):  
Milky Way ◽  
Low Latitude ◽  
Contour Maps

This paper presents contour maps of a region of the Milky Way at 1410 and 2650 MHz. A list of sources with values of flux densities and peak temperatures is given.

scholarly journals Redshift Survey of 951 IRAS Galaxies in the Southern Milky Way

1998 ◽  
Vol 179 ◽  
pp. 351-352
Author(s):  
N. Visvanathan ◽  
T. Yamada
Keyword(s):  
Visual Search ◽  
Point Source ◽  
Flux Density ◽  
Milky Way ◽  
The Galaxy ◽  
Redshift Survey

In this paper we present the results of a redshift survey of IRAS galaxies behind the whole southern Milky Way region 210° < l < 360° at |b| < 15°. The galaxy candidates in the southern Milky Way were selected from IRAS Point Source Catalogue (IPSC) by applying flux density and infrared colour criteria (Strauss et al. 1990; Rowan-Robinson et al. 1991). The selected sample is flux limited with f60 > 0.6Jy. A visual search for galaxy-like objects have been carried out in UK-Schmidt Infrared and IIIaJ films in the selected IRAS positions. In spite of the large Galactic extinction in this region, 966 galaxy candidates have been identified (Yamada et al. 1993).

scholarly journals A VLA Survey of Rich Clusters of Galaxies II. The Stronger Sources: Maps, Polarisations and Identifications

1994 ◽  
Vol 47 (2) ◽  
pp. 145 ◽  
Author(s):  
OB Slee ◽  
AL Roy ◽  
Ann Savage
Keyword(s):  
Flux Density ◽  
Source Parameters ◽  
Angular Size ◽  
Optical Parameters ◽  
Radio Sources ◽  
Very Large Array ◽  
Contour Maps ◽  
Optical Images ◽  
5 Ghz ◽  
Linear Polarisation

We present detailed radio and optical parameters for the stronger radio sources in 58 Abell cluster fields observed with the Very Large Array (VLA) using scaled arrays at 1�5 and 4�9 GHz. These sources comprise a complete sample with 1� 5 GHz flux density :;::20 mJy and cover a combined sky area of 3�5 X 10-5 sr. The cluster fields were distributed over 24 h of RA and between declinations +350 and -300 Contour maps at two frequencies are presented and source parameters such as position, angular size, spectral index, linear polarisation and core flux density are tabulated. We also derive the emitted power and linear size for those sources close to the cluster centres and therefore highly likely to be cluster members. We attempt to identify all these radio sources with optical images on the Palomar and SERC survey plates and give their accurate optical coordinates, morphologies and apparent magnitudes.

scholarly journals Australian Journal of Physics Astrophysical Supplement

1970 ◽  
Vol 23 (5) ◽  
pp. 613 ◽  
Author(s):  
WM Goss ◽  
PA Shaver
Keyword(s):  
Galactic Plane ◽  
Australian Journal ◽  
Contour Maps ◽  
Half Power

Contour maps of 63 regions in the galactic plane are presented. The half-power beamwidth was 4' arc at 5000 MHz. Positions and composite flux densities are given for 206 sources.

scholarly journals Australian Journal of Physics Astrophysical Supplements

1973 ◽  
Vol 26 (5) ◽  
pp. 689
Author(s):  
M Davies ◽  
AG Little ◽  
BY Mills
Keyword(s):  
Flux Density ◽  
Australian Journal ◽  
Radio Sources

A catalogue of radio sources observed at a frequency of 408 MHz with the Molonglo radiotelescope is presented. The catalogue includes an area of 0�21 sr between declinations -19�.3 and - 22� �4. A total of 1545 sources is listed down to a limiting flux density of O� 1 f.u., the catalogue being largely complete above 0�25 f.u. Errors in position vary from ~ 5N arc for sources stronger than 1 f.u. to ~ 30N arc for the weakest sources.

scholarly journals Recombination Lines near 8·9 GHz of Strong Sources in the Southern Milky Way

1975 ◽  
Vol 28 (2) ◽  
pp. 185 ◽  
Author(s):  
RX McGee ◽  
Lynette M Newton ◽  
RA Batchelor
Keyword(s):  
Radial Velocity ◽  
Flux Density ◽  
Milky Way ◽  
Large Magellanic Cloud ◽  
Abundance Ratio ◽  
Source Size ◽  
Temperature Line ◽  
Line Half Width ◽  
Intensity Ratios ◽  
Line Temperature

Seventeen intense nebulae in the southern Milky Way have been surveyed for their radio recombination lines of hydrogen and helium, H 90IX, He 9OIX, H 113ft, H 129y, and of elements heavier than helium, X901X. The H901X line for 30Doradus in the Large Magellanic Cloud was also observed. Data on source size, flux density, continuum temperature, line temperature, line half-width and radial velocity are used to derive information about the sources. This information includes electron temperatures and turbulent velocities, the abundance ratio of singly ionized helium to ionized hydrogen, and the intensity ratios of ft and y lines to IX lines. The lines from elements heavier than helium are discussed.

scholarly journals Australian Journal of Physics Astrophysical Supplements

1977 ◽  
Vol 30 (6) ◽  
pp. 681
Author(s):  
C Hazard ◽  
HS Murdoch
Keyword(s):  
Radio Source ◽  
Flux Density ◽  
Spectral Sensitivity ◽  
Australian Journal ◽  
Magnitude Distribution ◽  
Sky Survey ◽  
Magnitude Scales

This paper presents the results of an examination of the fields around 350 sources in the Molonglo radio source catalogues MC2 and MC3 for the R.A. interval 11 h 28m to 17h oom. The 300 sources with a flux density ;;. 0�45 Jy form an essentially complete radio sample and of these 21 % are identified with BSOs (most of which have now been spectroscopically confirmed as QSOs) and 22 % with galaxies of Ism or brighter. The magnitude scales adopted are carefully defined and based on the spectral sensitivity of the Palomar Sky Survey plates. A brief discussion is given of the magnitude distribution of the BSO identifications and possible evidence for anisotropy in the QSO distribution is noted.

scholarly journals Australian Journal of Physics Astrophysical Supplement

1975 ◽  
Vol 28 (6) ◽  
pp. 755
Author(s):  
Beverley J Wills
Keyword(s):  
Flux Density ◽  
Australian Journal ◽  
Radio Sources

Accurate measurements of relative flux density have been made between frequencies of 468 and 5009 MHz for 300 radio sources selected from the Parkes catalogue. The observations, their analysis and accuracy are described, and the flux densities presented together with their errors. Excluding the uncertainties in scaling these flux densities to an absolute system, r.m.s. errors vary from 0�24 Jy and 2�4 % at 635 MHz to 1�8 % at 2700 MHz; uncertainties in 'absolute' scaling are thought to be about 5 %. The present flux densities are compared with accurate values published elsewhere. The data have been combined with other published flux densities between 10 and 10000 MHz to derive spectra, which are presented graphically. Some sources whose spectra may be useful for flux density calibration are noted.

scholarly journals The Molonglo Deep Sky Survey of Radio Sources. I. Declination Zone -20°

1977 ◽  
Vol 30 (2) ◽  
pp. 209 ◽  
Author(s):  
JG Robertson
Keyword(s):  
Error Analysis ◽  
Flux Density ◽  
Lower Limit ◽  
Solid Angle ◽  
Radio Sources ◽  
Contour Maps ◽  
Upper Limit ◽  
Sky Survey ◽  
Deep Survey

Results of a deep survey made at 408 MHz with the Molonglo cross are given. The catalogue lists positions and flux densities for a total of 373 radio sources, most of which have not previously been catalogued, in a solid angle of 0�0201 Sf. This covers (with some excluded areas) right ascensions 0l h oom-06h 44m and 13h 45m-17h 19m, with a range in declination of 41'. Eighteen contour maps are given of sources that are extended or have very close companions. A thorough error analysis is given, as well as new operational definitions of completeness and reliability. The lower limit of flux density is 88 mJy, which is five times the r.m.s. error. An upper limit of 1000 mJy has also been imposed. Typical errors in positions are 15" at 100 mJy and 6" at 250 mJy.

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