ROSAT PSPC/HRI Observations of the Young Open Cluster NGC 2422 Barbera, M. ; Bocchino, F. ; Damiani, F. ; Micela, G. ; Sciortino, S. ; Favata, F. ; Harnden, F. R., Jr. Abstract Publication: Cool Stars, Stellar Systems, and the Sun Pub Date: 1996 Bibcode: 1996ASPC..109..355B