Dictionary of Nomenclature of Celestial Objects
(Last update: 10-Apr-2024)

Result of query: info cati SGRS$

Details on Acronym:   SGRS
  
SGRS (SUMSS Giant Radio Source)
Write:<<SGRS JHHMM+DDMM>>
N: 18
Object:(Rad)  (SIMBAD class: Radio = Radio Source)
Note:SGRS refers to combinations of radio sources which constitute a single connected structure of extreme linear projected size.
SUMSS refers to the Sydney University Molonglo Sky Survey (http://www.astrop.physics.usyd.edu.au/SUMSS/index.html).
In the paper of Hunstead+, the benchmark for inclusion is a linear size of 0.7 Mpc, assuming Ho=71 km/s/Mpc.
The SGRS acronym is only used for radio sources which meet this linear size criterion. this also means that an optical identification and redshift have been secured.
Candidate giant radio sources which fail this criterion, or do not have an identification or redshift, are given the prefix SGRC.
Ref:=2005AJ....130..896S
bySARIPALLI L. , HUNSTEAD R.W., SUBRAHMANYAN R., BOYCE E.
 Astron. J., 130, 896-922 (2005)
  A complete sample of megaparsec-sized double radio sources from the Sydney University Molonglo Sky Survey.
oTables 1, 5, 6: <SGRS JHHMM+DDMM> N=18. Tables 1, A2, A3: <SGRC JHHMM+DDMM> N=16.
=E=Catalogue in electronic form as J/AJ/130/896
Originof the Acronym: p = Pre-registered to IAU Comm.5