Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solar analogues and Solar twins in the HARPS archive   We present 63 Solar analogues and twins for which high S/N archival data are
available for the HARPS high resolution spectrograph at the ESO 3.6m telescope.
We perform a differential analysis of these stellar spectra relative to the
Solar spectrum, similar to previous work using ESO 2.2m/FEROS data, and expand
our analysis by introducing a new method to test the temperature and
metallicity calibration of Sun-like stars in the Geneva-Copenhagen-Survey
(GCS). The HARPS data are significantly better than the FEROS data, with
improvements in S/N, spectral resolution, and number of lines we can analyse.
We confirm the offsets to the photometric scale found in our FEROS study. We
confirm 3 Solar twins found in the FEROS data as Solar twins in the HARPS data,
as well as identify 6 new twins.

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The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
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The categories of this paper are: alg-geom
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The categories of this paper are: stat
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The categories of this paper are: dg-ga
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
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The categories of this paper are: ao-sci
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
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The categories of this paper are: atom-ph