Dictionary of Nomenclature of Celestial Objects
(Last update: 22-Mar-2024)

Result of query: info cati YGKOW$

Details on Acronym:   G
  
G (Galaxy)
***** Avoid the usage of G, prefer YGKOW
Originof the Acronym: A = Assigned by the author(s)

Details on Acronym:   YGKOW
  
YGKOW (Young+Gunn+Kristian+Oke+Westphal)
Write:<<YGKOW GN>>
<<YGKOW NNN>>
N: 5+180
Object:G + * + QSO  (SIMBAD class: Unknown = Object of Unknown Nature)
Note:N=5 galaxies in the cluster of galaxies surrounding QSO 0957+561 and N=180 objects in the same cluster.
G1 is often found named as 'the galaxy'.
See also [RGH85], [GWC92], [BTK93], [ACL97], [BFT97], [BLF99], [PMN99], [SOS99], [TF99], [KFI2000b].
Ref:=1980ApJ...241..507Y
byYOUNG P. , GUNN J.E., KRISTIAN J., OKE J.B., WESTPHAL J.A.
 Astrophys. J., 241, 507-520 (1980)
  The double quasar Q0957+561 A, B: a gravitational lens image formed by a galaxy at z=0.39.
oFig. 1b: <YGKOW GN> (Nos G1-G5)
Ref:=1981ApJ...244..736Y
byYOUNG P. , GUNN J.E., KRISTIAN J., OKE J.B., WESTPHAL J.A.
 Astrophys. J., 244, 736-755 (1981)
  Q0957+561 : detailed models of the gravitational lens effect.
o<YGKOW NNN> (Nos 1-180)
Originof the Acronym: L (1994A&A...291..411A)