Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Using cosmic voids to distinguish f(R) gravity in future galaxy surveys   We use properties of void populations identified in $N$-body simulations to
forecast the ability of upcoming galaxy surveys to differentiate models of f(R)
gravity from \lcdm~cosmology. We analyze multiple simulation realizations,
which were designed to mimic the expected number densities, volumes, and
redshifts of the upcoming Euclid satellite and a lower-redshift ground-based
counterpart survey, using the public {\tt VIDE} toolkit. We examine void
abundances, ellipicities, radial density profiles, and radial velocity profiles
at redshifts 1.0 and 0.43. We find that stronger f(R) coupling strengths
eliminates small voids and produces voids up to $\sim 20\%$ larger in radius,
leading to a significant tilt in the void number function. Additionally, under
the influence of modified gravity, voids at all scales tend to be measurably
emptier with correspondingly higher compensation walls. The velocity profiles
reflect this, showing increased outflows inside voids and increased inflows
outside voids. Using the void number function as an example, we forecast that
future surveys can constrain the modified gravity coupling strength to $\sim 3
\times 10^{-5}$ using voids.

24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys