400d cluster survey

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FINDING CHART FOR   cl 1231+4137 RA, Dec (J2000) = 12:31:45.6 +41:37:11

flux = ( 2.82 ± 0.34 ) ×10−13 erg/s/cm2
z = 0.1757
Lx = 2.26e+43 erg/s



ROSAT Field, X=115.6, Y=241.3
Model fit
DSS II red 24' × 24' image
CCD R-band image

NED objects within 5'
SDSS redshifts within 10'


DS9 display