Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Direct Acceleration: Cosmic and Exoplanet Synergies   Direct measurement of acceleration is a key scientific goal for both
cosmology and exoplanets. For cosmology, the concept of redshift drift (more
than 60 years old by the 2020s) could directly establish the
Friedmann-Lema{\^\i}tre-Robertson-Walker model. It would increase the dark
energy figure of merit by a factor of 3 beyond Stage 4 experiments, in
combination with cosmic microwave background measurements. For exoplanets, the
same technology required provides unprecedented radial velocity accuracy,
enabling detection of Earth mass planets in the habitable zone. Other science
cases include mapping the Milky Way gravitational potential and testing its
dark matter distribution.

3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int