Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Pulsar Search Collaboratory: Discovery and Timing of Five New
  Pulsars   We present the discovery and timing solutions of five new pulsars by students
involved in the Pulsar Search Collaboratory (PSC), a NSF-funded joint program
between the National Radio Astronomy Observatory and West Virginia University
designed to excite and engage high-school students in Science, Technology,
Engineering, and Mathematics (STEM) and related fields. We encourage students
to pursue STEM fields by apprenticing them within a professional scientific
community doing cutting edge research, specifically by teaching them to search
for pulsars. The students are analyzing 300 hours of drift-scan survey data
taken with the Green Bank Telescope at 350 MHz. These data cover 2876 square
degrees of the sky. Over the course of five years, more than 700 students have
inspected diagnostic plots through a web-based graphical interface designed for
this project. The five pulsars discovered in the data have spin periods ranging
from 3.1 ms to 4.8 s. Among the new discoveries are - PSR J1926-1314, a long
period, nulling pulsar; PSR J1821+0155, an isolated, partially recycled 33-ms
pulsar; and PSR J1400-1438, a millisecond pulsar in a 9.5-day orbit whose
companion is likely a white dwarf star.

11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con