Things to discuss during the Telecon:
Fig. 1: UV_SFR vs M_stellar for A2192 structures
AEGIS SFR - M* (big symbols correspond to z~0.2):
ir = galaxies with 24um detections (>60 uJy) - SFR derived from SF(24um) + SFR(emission lin es, uncorr. f. extinction)
blue = alaxies with no 24um emission (or <60uJy), but blue optical colors and emission lines. SFR derived from extinction-corrected emission lines, using an average DEEP2 line ratio as quoted in the first 2007 letter (not the M_H dependent line ratios given in Weiner et al. 2007 because these gave me larger SFR than 24um + emission lines).
Fig 2: X-rays
First Figure courtesy of Eli Rykoff (via Jacqueline)
I quote from his email: As for Abell 2192, this is a bit confusing. The redshift listed in SIMBAD is 0.03, which is clearly not correct. That said, the richness isn't that impressive.
I've attached a couple of SDSS images of the two clusters, overlaid with ROSAT contours (in green). [Ignore what's labeled as “R200”] ONe is clearly a nice X-ray cluster, the other has a bit of X-ray emission. However, there is a source in the ROSAT Bright Source Catalog coincident with the cluster center.
This corresponds to a LX~7e43 h_100^-2 erg/s, as I said.
And that's about all I know. A literature search is certainly complicated by the misidentification in SIMBAD.
Fig 3: On the blue fractions in A963
Now in the next plot I separate by structure:
I measured blue fractions in the red and green points and got:
f_B (A2192_1 / red) = 43.4%
f_B (A2192_2 /green) = 52.6%
f_B (A2192_1 + A2192_2 / green and red) = 45.6%
blue= Lavery & Henry; red= ours; blac circles = HI detections
Note that NONE of the LH galaxies are HI detected
See the z histogram of the plotted points here:
Just to follow-up on what I said earlier at the telecon, here are the plots I mentioned. These are about 1000 galaxies each in the directions of two target clusters, nearly all with SDSS specz. The “big” magenta circle in the middle is about 1 degree in diameter, similar to the circle in Marc's 2007 paper. Different colors represent different redshifts, obviously.
* A963: blue (0.14<z<0.18), green (0.18 <z<0.23), red (0.23<z<0.28)
* A2192: blue (0.12<z<0.15), cyan (0.15<z<0.17), green (0.17<z<0.21), and red (0.21<z<0.24)
We are beginning to bump into the SDSS redshift limit here, so you see fewer galaxies at higher-z bins, but you can see the LSS across both of these fields. As expected, A963 is clearly a local density peak, but A2192 isn't so obvious. It is part of a fairly substantial filament at z=0.18, but through a void at z=0.14.
All the blue points are field
clusters that are not A2192_1 are magenta
A2192_1a =red
A2192_1b =grey
A2192_1c =turquoise
A2192_1d =yellow