RA: 11h23m32.1s
DEC: +43d06m32s
Redshift: 0.194
Nspec: ~200
Radio: DR
Polarization: 45%
AV: 0.058
SDSS: Y
HST: N
SUPRIME: N
Comment: Barrena et al 2009
Possibly complex: in addition to 2 clumps in A1240, A1237 is
nearby. See
Bonafede et al. 2009 for radio analysis and Barrena
et al 2009 for table of ~150 redshifts. We also took one DEIMOS
mask in Dec. 2013.
Left: Figure 5 from Barrena et al 2009:
Spatial distribution on the sky and relative isodensity contour map of
cluster members (A1237+A1240), obtained with the DEDICA method. The
positions of the brightest galaxies are indicated (BCGN, BCGS, BCGE
for A1240 and BCG1 and BCG2 for A1237). The plot is centered on the
cluster center defined in this paper as the X-ray center. The two
relics are indicated in a schematic way.
Right: Figure 14 from Barrena et al 2009: 17'x17' Chandra X-ray smoothed
image (ID 4961) of A1240 in the energy band 0.5-2 keV (North at the
top and East to the left). The central circle has a radius of 2.58
(0.5 Mpc at the cluster redshift, see text). Black contours show the
two radio relics.