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

Understanding the formation and evolution of the Universe is crucial forcosmological studies, and the line intensity mapping provides a powerful toolfor this kind of study. We propose to make use of multipole moments ofredshift-space line intensity power spectrum to constrain the cosmological andastrophysical parameters, such as the equation of state of dark energy, massiveneutrinos, primordial non-Gaussianity, and star formation rate density. As anexample, we generate mock data of multipole power spectra for H-alpha 6563AA,[OIII] 5007AA and [OII] 3727AA measured by SPHEREx experiment at z=1considering contaminations from interloper lines, and use Markov Chain MonteCarlo (MCMC) method to constrain the parameters in the model. We find a goodfitting result of the parameters compared to their fiducial values, which meansthat the multipole power spectrum can effectively distinguish signal andinterloper lines, and break the degeneracies between parameters, such as linemean intensity and bias. We also explore the cross power spectrum with CSST(Chinese Space Station Telescope) spectroscopic galaxy survey in theconstraints. Since more accurate fitting results can be obtained by includingmeasurements of the emission lines at higher redshifts out to z=3 at least andcross-correlations between emission lines can be involved, the line intensitymapping is expected to offer excellent results in future cosmological andastrophysical studies.

Cosmological constraints from line intensity mapping with interlopers