English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We extend the real-space mapping method developed in Shi et at. (2016) sothat it can be applied to flux-limited galaxy samples. We use an ensemble ofmock catalogs to demonstrate the reliability of this extension, showing that itallows for an accurate recovery of the real-space correlation functions andgalaxy biases. We also demonstrate that, using an iterative method applied tointermediate-scale clustering data, we can obtain an unbiased estimate of thegrowth rate of structure $f\sigma_8$, which is related to the clusteringamplitude of matter, to an accuracy of $\sim 10\%$. Applying this method to theSloan Digital Sky Survey (SDSS) Data Release 7 (DR7), we construct a real-spacegalaxy catalog spanning the redshift range $0.01 \leq z \leq 0.2$, whichcontains 584,473 galaxies in the north Galactic cap (NGC). Using this data, weinfer $\fss$ at a median redshift $z=0.1$, which is consistent with the WMAP9cosmology at the $1\sigma$ level. By combining this measurement with thereal-space clustering of galaxies and with galaxy-galaxy weak lensingmeasurements for the same sets of galaxies, we are able to break the degeneracybetween $f$, $\sigma_8$, and $b$. From the SDSS DR7 data alone, we obtain thefollowing cosmological constraints at redshift $z=0.1$:$f=$$0.464^{+0.040}_{-0.040}$, $\sigma_8=0.769^{+0.121}_{-0.089}$, and$b=1.910^{+0.234}_{-0.268}$, $1.449^{+0.194}_{-0.196}$,$1.301^{+0.170}_{-0.177}$, and $1.196^{+0.159}_{-0.161}~$ for galaxies withindifferent absolute magnitude bins $^{0.1}{\rm M}_r-5\log h=[-23,0, -22.0],[-22,0, -21.0], [-21.0, -20.0]$ and $[-20.0, -19.0]$, respectively.

astrophysical journal/the astrophysical journal

Mapping the Real Space Distributions of Galaxies in SDSS DR7: II.  Measuring the growth rate, clustering amplitude of matter and biases of  galaxies at redshift $0.1$