Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Community Paper on Radio Astronomy Infrastructures   Radio astronomy has experienced phenomenal progress in recent years due to
advances in digital technologies and processing speed, the development of new
technologies, and the prospect for new powerful facilities A new generation of
radio interferometers is opening new windows to the Universe. LOFAR, the world
largest telescope, extended the classical radio window at low frequencies. ALMA
started a new era at millimetre wavelengths and the planned SKA will
revolutionize the sciences of the Universe, well beyond the traditional limits
of astronomy. Radio astronomy research is making leaps with enhancements in
resolution, sensitivity, and image fidelity. In Germany, the community has
access to excellent facilities and training opportunities. The Effelsberg
telescope remains the flagship of radio astronomical research at centimeter
wavelengths and serves as a test bed for new technologies, LOFAR has notably
expanded the German community and now includes six German stations and a LOFAR
long term archive coordinated by the GLOW consortium. The SKA will be a
transformational astronomical facility in the coming decade(s), and the German
community is looking forward to broadly participate in SKA-enabled research.

30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys