Re: Colors of our knots and such

From: Bahram Mobasher (mobasher@stsci.edu)
Date: Mon Jul 12 2004 - 14:42:38 PDT

  • Next message: Saul Perlmutter: "Re: Colors of our knots and such"

    Rob,

    I calculated redshifts using both apertures. The advantage of using the
    ACS data only is that we do not get blending, which would compromise the
    photometric accuracy and hence, the accuracy of redshifts. the disadvantage
    is that we get less strong constraints, as we cannot include the near-IR data.

    Fortunately, in this case the overall result is similar to the previous case
    (i.e. using ground-based+ACS photometry). Here are the results:

    2.935 aperture

     1 2 3 4 5 6

    knot 1 2.00 1.61 2.39 starburst 2.00
    knot 2 2.10 1.69 2.51 starburst 2.10
    bridge 1.40 1.08 1.72 Irr 1.40
    neighb 2.10 1.69 2.51 starburst 2.10

    4.165 aperture

     1 2 3 4 5 6

    knot 1 1.70 1.35 2.18 starburst 1.72
    knot 2 2.10 1.69 2.51 starburst 2.10
    bridge 1.44 0.72 2.09 Irr 0.90
    neighb 2.10 1.69 2.51 starburst 2.10

    1 object
    2 phot-z (with prior)
    3,4 95% confidence interval
    5 spectral typee
    6 phot-z (without prior)

    Bahram

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    * Space Telescope Science Institute * *
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