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 present Herschel-PACS spectroscopy of four main-sequence star-forminggalaxies at z~1.5. We detect [OI]63micron line emission in BzK-21000 atz=1.5213, and measure a line luminosity, L([OI]63micron) = (3.9+/-0.7)x1.E+9Lsun. Our PDR modelling of the interstellar medium in BzK-21000 suggests a UVradiation field strength, G~320 G0, and gas density, n~1800 cm-3, consistentwith previous LVG modelling of the molecular CO line excitation. The otherthree targets in our sample are individually undetected in these data, and weperform a spectral stacking analysis which yields a detection of their averageemission and an [OI]63micron line luminosity, L([OI]63micron) =(1.1+/-0.2)x1E+9Lsun. We find that the implied luminosity ratio, L([OI]63micron)/L(IR), of theundetected BzK-selected star-forming galaxies broadly agrees with that oflow-redshift star-forming galaxies, while BzK-21000 has a similar ratio to thatof a dusty star-forming galaxy at z~6. The high [OI]63micron line luminositiesobserved in BzK-21000 and the $z \sim 1 -3$ dusty and submm luminousstar-forming galaxies may be associated with extended reservoirs of lowdensity, cool neutral gas.

Observations of [OI]63micron line emission in main-sequence galaxies at z~1.5