Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Identification of selected sources from the ROSAT Galactic Plane Survey
  - I   We report on optical searches in the error circles of 93 ROSAT survey sources
located at low galactic latitudes (|b| < 20 deg). These sources were extracted
from the ROSAT Galactic Plane Survey using various selection criteria on
hardness ratio, X-ray and optical brightness and integrated galactic absorption
in the direction of the source. We find optical identifications in 76 cases,
among which are 25 new AGN, 6 new CVs and a new Be/X-ray binary. In order to
illustrate the relevance of the source selections applied here, we
cross-correlated the ROSAT all-sky survey bright source list with SIMBAD.
Different classes of X-ray emitters populate distinct regions of a multi
dimensional parameter space involving flux ratios, galactic latitude and Nh.
This relatively good segregation offers the possibility to build source samples
with enhanced probability of identification with a given class. Complete
optical identification of such subsamples could eventually be used to compute
meaningful probabilities of identification for all sources using as basis a
restricted set of multi-wavelength information.

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The categories of this paper are: chao-dyn
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The categories of this paper are: solv-int
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The categories of this paper are: cmp-lg
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The categories of this paper are: math
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The categories of this paper are: eess
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The categories of this paper are: q-fin
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The categories of this paper are: cs
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The categories of this paper are: gr-qc
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The categories of this paper are: math-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: stat
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The categories of this paper are: atom-ph
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The categories of this paper are: q-alg