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The BCG in Abell 2261

The BCG in Abell 2261. Marc Postman & the CLASH team Special Guest Star: Tod Lauer. 3 arcsec (10.5 kpc) fiber  Typical E-gal SED. NVSS Radio Emission Detected. BCG Model. 38 arcsec = 133 kpc . 3 0 kpc. 10 kpc. For A2261: 1 arcsec subtends ~ 3.6 kpc (h=0.7)

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The BCG in Abell 2261

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  1. The BCG in Abell 2261 Marc Postman & the CLASH team Special Guest Star: Tod Lauer

  2. 3 arcsec (10.5 kpc) fiber  Typical E-gal SED

  3. NVSS Radio Emission Detected

  4. BCG Model 38 arcsec = 133 kpc

  5. 30 kpc 10 kpc For A2261: 1 arcsec subtends ~3.6 kpc (h=0.7) BCG Half-light radius = 28 kpc (h=0.7)

  6. I(r) = Io((r/rb)-γ)(1 + (r/rb)-α)(γ-β)/α Cusp radius, rγ, is defined in Lauer et al. 2007: Radius at which dln(I(r))/dlnr reaches a prescribed value, in this case -0.5. rγ is more tightly correlated with other galaxy properties than rb

  7. De-projection: Abel integral Luminosity Density

  8. Need to get “knot” spectrum

  9. Ann Zabludoff 2011

  10. Ann Zabludoff 2011

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  12. Ann Zabludoff 2011

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