Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Weak lensing analysis of Cl 1358+62 using Hubble Space Telescope
  observations   We report on the detection of weak gravitational lensing of faint, distant
background galaxies by Cl 1358+62, a cluster of galaxies at a redshift of
z=0.33. The observations were made using the HST. The measured shear is
consistent with a velocity dispersion of 780+-50 km/s. The weak lensing mass is
slightly lower than dynamical estimates and agrees well with X-ray mass
estimates. The mass distribution is elongated similar to the light. The axis
ratio of 0.30+-0.15 and position angle of -21+-8 degrees were measured directly
from the observed shear and agree very well with a previous strong lensing
analysis. We estimate the mass-to-light ratio to be 90+-13 h50 M_sun/L_Vsun.
The HST point spread function is highly anisotropic at the edges of the
individual chips. This systematically perturbs the shapes of objects and we
present a method for applying the appropriate correction.

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The categories of this paper are: hep-th
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
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The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: acc-phys
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The categories of this paper are: econ
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The categories of this paper are: adap-org