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

In order to shed light on how galactic properties depend on the intergalacticmedium (IGM) environment traced by the Ly$\alpha$ forest, we observationallyinvestigate the IGM-galaxy connection using the publicly available 3D IGMtomography data (CLAMATO) and several galaxy catalogs in the COSMOS field. Wemeasure the cross-correlation function (CCF) for $570$ galaxies with spec-$z$measurements and detect a correlation with the IGM up to $50$ $h^{-1}$ comovingMpc. We show that galaxies with stellar masses of $10^9-10^{10}$ M$_\odot$ arethe dominant contributor to the total CCF signal. We also investigate CCFs forseveral galaxy populations: Ly$\alpha$ emitters (LAEs), H$\alpha$ emitters(HAEs), [OIII] emitters (O3Es), active galactic nuclei (AGNs), andsubmillimeter galaxies (SMGs), and we detect the highest signal in AGNs andSMGs at large scales ($r\geq5$ $h^{-1}$ Mpc), but in LAEs at small scales($r<5$ $h^{-1}$ Mpc). We find that they live in various IGM environments --HAEs trace the IGM in a similar manner to the continuum-selected galaxies, butLAEs and O3Es tend to reside in higher-density regions. Additionally, LAEs' CCFis flat up to $r\sim3$ $h^{-1}$ Mpc, indicating that they tend to avoid thehighest-density regions. For AGNs and SMGs, the CCF peak at $r=5-6$ $h^{-1}$Mpc implies that they tend to be in locally lower-density regions. We suspectthat it is due to the photoionization of IGM HI by AGNs, i.e., the proximityeffect.

Environmental Dependence of Galactic Properties Traced by Ly$\alpha$ Forest Absorption: Diversity among Galaxy Populations