Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mapping the Cosmic Web with the largest all-sky surveys   Our view of the low-redshift Cosmic Web has been revolutionized by galaxy
redshift surveys such as 6dFGS, SDSS and 2MRS. However, the trade-off between
depth and angular coverage limits a systematic three-dimensional account of the
entire sky beyond the Local Volume (z<0.05). In order to reliably map the
Universe to cosmologically significant depths over the full celestial sphere,
one must draw on multiwavelength datasets and state-of-the-art photometric
redshift techniques. We have undertaken a dedicated program of cross-matching
the largest photometric all-sky surveys -- 2MASS, WISE and SuperCOSMOS -- to
obtain accurate redshift estimates of millions of galaxies. The first outcome
of these efforts -- the 2MASS Photometric Redshift catalog (2MPZ, Bilicki et
al. 2014a) -- has been publicly released and includes almost 1 million galaxies
with a mean redshift of z=0.08. Here we summarize how this catalog was
constructed and how using the WISE mid-infrared sample together with
SuperCOSMOS optical data allows us to push to redshift shells of z~0.2--0.3 on
unprecedented angular scales. Our catalogs, with ~20 million sources in total,
provide access to cosmological volumes crucial for studies of local galaxy
flows (clustering dipole, bulk flow) and cross-correlations with the cosmic
microwave background such as the integrated Sachs-Wolfe effect or lensing
studies.

15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics