Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: HST NICMOS Imaging of the Planetary-mass Companion to the Young Brown
  Dwarf 2MASS J1207334-393254   Multi-band (0.9 to 1.6 um) images of the TW Hydrae Association (TWA) brown
dwarf, 2MASS J1207334-393254 (also known as 2M1207), and its candidate
planetary mass companion (2M1207b) were obtained on 2004 Aug 28 and 2005 Apr 26
with HST/NICMOS. The images from these two epochs unequivocally confirm the two
objects as a common proper motion pair (16.0 sigma confidence). A new
measurement of the proper motion of 2M1207 implies a distance to the system of
59+-7 pc and a projected separation of 46+-5 AU. The NICMOS and previously
published VLT photometry of 2M1207b, extending overall from 0.9 to 3.8 um, are
fully consistent with an object of a few Jupiter masses at the canonical age of
a TWA member (~8 Myr) based on evolutionary models of young giant planets.
These observations provide information on the physical nature of 2M1207b and
unambiguously establish that the first direct image of a planetary mass
companion in orbit around a self-luminous body, other than our Sun, has been
secured.

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The categories of this paper are: adap-org
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The categories of this paper are: ao-sci
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The categories of this paper are: math
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The categories of this paper are: physics
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The categories of this paper are: supr-con
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The categories of this paper are: atom-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: dg-ga
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The categories of this paper are: cs
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The categories of this paper are: bayes-an
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-lat
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The categories of this paper are: funct-an
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The categories of this paper are: q-alg
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The categories of this paper are: q-fin
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The categories of this paper are: solv-int