scholarly journals The Parkes 2700 MHz Survey (Ninth Part). Supplementary Catalogue for the Declination Zone ?45° to ?65°

1975 ◽  
Vol 28 (2) ◽  
pp. 239
Author(s):  
JV Wall ◽  
AJ Shimmins ◽  
JG Bolton
Keyword(s):  
Flux Density ◽  
Galactic Plane ◽  
Radio Sources ◽  
The Third

A catalogue of 166 radio sources is presented, covering an area of 0�63 sr with right ascensions 0Qh to 03h, 04h to OSh 30"', 17h 30'" to 19h and 20b to 23h between declinations -45� and - 65�. The regions omitted are either close to the galactic plane (OSh 30'" to 17h 30"') or are covered in the third part of the Parkes 2700 MHz survey. The catalogue was compiled from a 'fast' finding survey at 2700 MHz aimed at detecting sources stronger than o� 5 Jy. Subsequent measurements at 2700 and 5009 MHz of flux density and position were made for all sources which were not in the Parkes 40S MHz catalogue and for 42 sources in the 40S MHz catalogue for which only data of low accuracy were available.

scholarly journals A Catalogue of Galactic Radio Sources

1968 ◽  
Vol 21 (3) ◽  
pp. 369 ◽  
Author(s):  
MJL Kesteven
Keyword(s):  
Flux Density ◽  
Spectral Index ◽  
Galactic Plane ◽  
Radio Sources ◽  
Galactic Radio

The results of a survey of radio sources in the galactic plane in the longitude range 1800 to 400 with the 1 mile Molonglo Cross telescope at 408 MHz are presented. The methods of observation and reduction are described briefly. The catalogue lists the position, flux density, size, and spectral index for 80 sources

scholarly journals The Parkes 2700 MHz Survey (Tenth Part). Supplementary Catalogue for the Declination Zone +4° to +25°

1975 ◽  
Vol 28 (2) ◽  
pp. 239
Author(s):  
AJ Shimmins ◽  
JG Bolton ◽  
JV Wall
Keyword(s):  
Flux Density ◽  
Galactic Plane ◽  
Radio Sources ◽  
Stellar Objects ◽  
Quasi Stellar Objects

A catalogue of lSI radio sources is presented covering the declination zone +4� to +25� and all right ascensions, omitting two regions within approximately 10� of the galactic plane (R.A. 05h30'" to 07ho()m and R.A. lShOO'" to 2Oh30"'). The catalogue was compiled from a 'fast' finding survey at 2700 MHz aimed at detecting sources stronger than o� 5 Jy. Subsequently, measurements of accurate flux density and position were made on all the sources which were not in the Parkes 40S MHz catalogue and on a few sources in the 40S MHz catalogue for which only data of low accuracy were available. The' positions of sources were determined to an accuracy of 10" arc r.m.s. in both coordinates. Flux densities for most of the sources were also measured at 5009 MHz. Identifications are suggested for 17 galaxies and 62 quasi-stellar objects.

scholarly journals 8·8 GHz Radio Observations of 12 Suggested Supernova Remnants

1973 ◽  
Vol 26 (3) ◽  
pp. 379 ◽  
Author(s):  
JR Dickel ◽  
DK Milne ◽  
AR Kerr ◽  
JG Ables
Keyword(s):  
Flux Density ◽  
Supernova Remnants ◽  
Supernova Remnant ◽  
Galactic Plane ◽  
Small Diameter ◽  
Radio Sources ◽  
Radio Observations ◽  
Frequency Measurements ◽  
Thermal Spectrum

Brightness distributions and flux densities at 8�8 GHz are presented for 12 small-diameter radio sources near the galactic plane. Each of these sources has been classified at one time or another as a supernova remnant. For one source, G295� 2 - 0�6, the flux density at 8�8 GHz confirms the thermal spectrum suggested by lower frequency measurements and indicates that it is not a supernova remnant. Another source, G309� 6+ 1�7, is thought to be extragalactic.

scholarly journals The Number-Flux Density Relation for Radio Sources away from the Galactic Plane

1961 ◽  
Vol 122 (5) ◽  
pp. 389-397 ◽  
Author(s):  
P. F. Scott ◽  
M. Ryle
Keyword(s):  
Flux Density ◽  
Galactic Plane ◽  
Radio Sources ◽  
Density Relation

scholarly journals A Catalogue of Small-diameter Radio Sources Close to the Galactic Plane

1974 ◽  
Vol 27 (5) ◽  
pp. 713 ◽  
Author(s):  
DH Clark ◽  
DF Crawford
Keyword(s):  
Flux Density ◽  
Galactic Plane ◽  
Small Diameter ◽  
Hii Regions ◽  
Radio Sources ◽  
Galactic Radio

A catalogue of 'smaIl-diameter' galactic radio sources observed at a frequency of 408 MHz with the Molonglo radiotelescope is presented. The catalogue covers an area of 0�40 sr enclosed in the range [II = 190�-360�-50�, 1 bIll..;; 3�. The sources listed are those which show no significant broadening of the ~ 3' arc aerial beam. Small-diameter features bounded or confused by extended regions of emission are not included. A total of 513 sources are listed above a flux density of O' 6 Jy. While most of these are expected to be extragalactic, the list includes some known pulsars and small-diameter HII regions. The catalogue should form a useful search list for the identification of other such galactic objects.

scholarly journals The Parkes 2700 MHz Survey. Catalogue for 03h, 11h, 19h, and 23h Zone, Declinations ?33° to ?75°

1971 ◽  
Vol 24 (4) ◽  
pp. 933
Author(s):  
AJ Shimmins
Keyword(s):  
Flux Density ◽  
Galactic Plane ◽  
Radio Sources ◽  
Extragalactic Radio Sources ◽  
Sky Survey

A catalogue of 618 extragalactic radio sources obtained from a sky survey at 2700 MHz is presented. The area of 0�42 sr covers four southern zones of R.A. 03h to 04h , II h to 12h , 19h to 20h , and 23h to 00h, between Dec. -330 and -75�, with a region omitted in the llh zone which is close to the galactic plane. The catalogue is complete to a limiting flux density of 0�32 f.u. at 2700 MHz and is thought to be 90% complete at a flux density of 0�20 f.u. The positions are accurate to 15" arc or slightly better in both coordinates for sources stronger than 0�32 f.u.; the flux densities of the weaker sources are accurate to 0�02 f.u., and for sources stronger than 1 f.u. the accuracy is 3%.

scholarly journals An All-sky Catalogue of Strong Radio Sources at 408 MHz

1973 ◽  
Vol 26 (3) ◽  
pp. 403 ◽  
Author(s):  
JG Robertson
Keyword(s):  
Flux Density ◽  
Galactic Plane ◽  
Magellanic Cloud ◽  
Radio Sources ◽  
Extragalactic Radio Sources ◽  
Density Scale

A catalogue of 160 extragalactic radio sources stronger than 10 f.u. at 408 MHz has been compiled by selecting sources from the Parkes and 3CR surveys but adopting the most accurate values of flux density that are available. The sky coverage of 10�1 sr omits only the galactic plane and Magellanic Cloud regions. The flux density scale due to Wyllie has been used throughout.

scholarly journals Australian Journal of Physics Astrophysical Supplement

1975 ◽  
Vol 28 (2) ◽  
pp. 239
Author(s):  
JG Bolton ◽  
AJ Shimmins ◽  
JV Wall
Keyword(s):  
Flux Density ◽  
Galactic Plane ◽  
Australian Journal ◽  
Radio Sources

A catalogue of 34S radio sources is presented, covering right ascensions O&h 00'" to 17hOO'" and 19h30'" to 06h30'" between declinations _4� and -30�. The regions omitted re within - 10� of the galactic plane. The catalogue was compiled from a 'fast' finding survey at 2700 MHz aimed at detecting sources stronger than o� 5 Jy. Subsequent measurements of flux density and position were made on all the sources which were not in the Parkes 40S MHz catalogue, and on some sources in the Parkes 40S MHz catalogue for which only data of low accuracy were available.

scholarly journals The Evolution and Distance to SCORPIUS X-1

1998 ◽  
Vol 164 ◽  
pp. 339-340
Author(s):  
E. B. Fomalont ◽  
C. F. Bradshaw ◽  
B. J. Geldzahler
Keyword(s):  
Flux Density ◽  
X Ray ◽  
The Third ◽  
Trigonometric Parallax ◽  
Relative Luminosity ◽  
5 Ghz ◽  
Eddington Limit

AbstractFrom three VLBA observations at 5 GHz, spanning 13 months, we have measured the trigonometric parallax of Sco X-1 of 0.23 ± 0.28 mas; hence its distance is > 1300 pc. This supports the hypothesis that the the x-ray luminosity is near the Eddington Limit.All three VLBA observations show a radio core of flux density 0.5 mJy and size < 4 mas. However, the third VLBA observation revealed two additional radio components, separated by 12 mas (≈ 20 au) on opposite sides of the radio core. The evolution of these new components is unknown until additional observations can be made. The relative luminosity and separation of the two radio components are inconsistent with the Doppler beaming of two identical ejecta from the radio core.

scholarly journals 5-GHz VLBI Imaging Observations of 7 Equatorial AGNs

2002 ◽  
Vol 184 ◽  
pp. 304-305
Author(s):  
Z.-Q. Shen ◽  
D. R. Jiang ◽  
Y.J. Chen ◽  
T.-S. Wan
Keyword(s):  
Radio Sources ◽  
Preliminary Results ◽  
The Third ◽  
5 Ghz

AbstractSince 1992 we have been conducting a 5-GHz VLBI imaging survey of southern and equatorial radio sources. So far, we have published the results of two observing sessions with 26 southern radio sources imaged in total (Shen et al. 1997; 1998). In this paper, we present the preliminary results of the third session of observations of 7 equatorial sources in the sample.

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