Dictionary of Nomenclature of Celestial Objects
(Last update: 17-Mar-2023)

Result of query: info cati IW2001]$

Details on Acronym:   [IW2001]
  
[IW2001] (Immler+Wang, 2001)
 Write:<<[IW2001]  HNN>>  

        <<[IW2001]  PNN>>
 N:  46+69
Object:(X)  (SIMBAD class: X = X-ray Source)
  Stat:is completely incorporated in Simbad
  Note:ROSAT HRI and PSPC observations of M 81.
    HRI sources format 'HNN', PSPC sources format 'PNN'.
 in source:M 81 = NGC 3031
   Ref:=2001ApJ...554..202I
     byIMMLER S.
, WANG Q.D.
 Astrophys. J., 554, 202-215 (2001)

    ROSAT X-ray observations of the spiral galaxy M81.

oTable 3: <[IW2001] HNN> (Nos H1-H46). Table 4: <[IW2001] PNN> (Nos    P1-P69).
=E=Catalogue in electronic form as J/ApJ/554/202
 Originof the Acronym: S = Created by Simbad, the CDS Database