Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for young low-mass stars in a ROSAT selected sample south of the
  Taurus-Auriga molecular clouds   We present results of intermediate resolution spectroscopy of 131 optical
counterparts to 115 ROSAT All-Sky Survey X-ray sources south of the
Taurus-Auriga dark cloud complex. These objects have been selected as candidate
young stars from a total of 1084 ROSAT sources in a about 300 square degree
area. We identify 30 objects as low-mass PMS stars on the basis of the Li 6708
doublet in their spectrum, a signature of their young age. All these stars have
a spectral type later than F7 and show spectral characteristics typical of
weak-line and post-T Tauri stars. The presence of young objects several parsecs
away from the regions of ongoing star formation is discussed in the light of
the current models of T Tauri dispersal.

8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics