Dictionary of Nomenclature of Celestial Objects
(Last update: 11-Mar-2024)

Result of query: info cati A2001] Mrk 231$
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Details on Acronym:   [A2001]
  
[A2001] (Arp, 2001)
Write:<<[A2001] Mrk 273 NN>>
<<[A2001] Mrk 273 NNW>>
<<[A2001] Mrk 231 NNN.N>>
<<[A2001] Mrk NNN NNN>>
<<[A2001] Arp 220 NN>>
<<[A2001] Arp 220 NN.N>>
<<[A2001] Arp 220 NN.NW>>
<<[A2001] NGC 6240 NN>>
<<[A2001] NGC 383 A>>
N: 13+14+10+11+14+10
Object:(X) + G  (SIMBAD class: X = X-ray Source)
Note:Fig.7, Table 1: bright X-ray sources in the field of Mrk 273.
Fig.12, Table 2: bright X-ray sources in the field of Mrk 231. The format 'NNN.N' stands for counts kpc(-1).
Fig.17: standard detection of X-ray sources in the field APG 220.
Fig.18, Table 3: bright X-ray sources in the field of APG 220. The format 'NN.NW' stands for counts ks(-1).
Fig.21: ROSAT PSPC sources around NGC 6240.
Fig.25: N=10 galaxies in group SW of NGC 383.
Ref:=2001ApJ...549..780A
byARP H.
 Astrophys. J., 549, 780-801 (2001)
  The surroundings of disturbed, active galaxies.
oFigs 19, 22, 27: Objects without designation are not in SIMBAD.
oFig.7, Table 1: <[A2001] Mrk 273 NNW> N=13. Fig.12, Table 2: <[A2001] Mrk 231 NNN.N> N=14. Fig.17: <[A2001] Arp 220 NN> (Nos 1-10). Fig.18, Table 3: <[A2001] Arp 220 NN.NW> N=11. Fig.21: <[A2001] NGC 6240 NN> (Nos 1-14). Fig.25: <[A2001] NGC 383 A> (Nos A-J).
Originof the Acronym: S = Created by Simbad, the CDS Database