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Jarrett Version June 28 (2003)1 2MASS Galaxy Catalog T. Jarrett 6dFGS Workshop (Jul 03) All Sky released 500 million sources (PSC) 1.65 million sources (XSC) >98% galaxies (XSC) 10 < size < degrees K lim < 14 mag (completeness) K s ~ 13.2 mag (S/N = 10) K s < 12 mag (ZoA penetrated)
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Jarrett2 Topics XSC Overview Galaxy Counts Size Distribution Colors Spatial & Redshift Distribution(s) (Morphology) –NIR images –Color –SB
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Jarrett3 All Sky
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Jarrett4 Galaxy Counts |Glat| > 25 o
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Jarrett5 Zone of Avoidance |Glat| < 5 o
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Jarrett6 Galaxies + Galactic Fuzz
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Jarrett7 Galaxy Clusters
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Jarrett8 Size Distribution
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10 Colors
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Jarrett13 K-correction
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Jarrett17 Virgo Perseus- Pisces Hercules
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Jarrett19 Galactic View of the Near-Infrared Local Universe
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Jarrett20 NED matches with 2MASS RC3UGC CfACarnegie SDSS2dF6dF
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Jarrett21 Photometric Redshifts Distance modulus K-band Luminosity Function (Kochanick et al. 2001; Cole et al.) M K* -23.5 mag See also Kochanek et al. (2003) "Clusters of Galaxies in the Local Universe" where h = H o [km/s/Mpc] / 100, = 1 A V (l,b) determined from the Schlegel FIR maps
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Jarrett23 NED vs 2MASS 6dF vs 2MASS Photo-redshifts z(K, l, b) M K = -24 mag h = 0.72 A K = 0.1 A V
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Jarrett24 NED vs 2MASS
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Jarrett25 6dF vs 2MASS
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Jarrett26 2dF vs 2MASS
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Jarrett27 NIR Morphology Q: Does the 2MASS XSC provide enough information to distinguish galaxy types? Q: NIR Images? Q: Optical + NIR? Q: Spectral Classification?
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Jarrett29 NGC3091 K=8.2 ARK417 K=12.4 IISZ039 K=12.5 E3 S0 Sa NGC3768 K=9.7 CGCG212-036 K=12.05 LEDA83469 K=13.0 NGC5326 K=9.0 NGC4186 K=10.8 IRASF12593+3011 K=12.6
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Jarrett30 Sb Sc Sd NGC4800 K=8.3 UGC7017 K=10.5 IC3609 K=12.5 NGC4651 K=8.1 NGC3140 K=11.0 VPC0007 K=12.9 NGC3621 K=7.0 UGC8702 K=11.3 NGC4514 K=12.0 UGC8911 K=12.7
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