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 a multi-wavelength study of a 3.6 $\mu$m-selected galaxy sample inthe Extended Groth strip. The sample is complete for galaxies with stellar mass$>10^{9.5}$ \Msun and redshift $0.4<z<1.2$. In this redshift range, the IRAC3.6 $\mu$m band measures the rest-frame near-infrared band, permitting nearlyunbiased selection with respect to both quiescent and star-forming galaxies.The numerous spectroscopic redshifts available in the EGS are used to train anArtificial Neural Network to estimate photometric redshifts. The distributionof photometric redshift errors is Gaussian with standard deviation${\sim}0.025(1+z)$, and the fraction of redshift failures (${>}3\sigma$ errors)is about 3.5%. A new method of validation based on pair statistics confirms theestimate of standard deviation even for galaxies lacking spectroscopicredshifts. Basic galaxy properties measured include rest-frame $U-B$ colors,$B$- and $K$-band absolute magnitudes, and stellar masses. We divide the sampleinto quiescent and star-forming galaxies according to their rest-frame $U-B$colors and 24 to 3.6 \micron\ flux density ratios and derive rest $K$-bandluminosity functions and stellar mass functions for quiescent, star forming,and all galaxies. The results show that massive, quiescent galaxies were inplace by $z\approx1$, but lower mass galaxies generally ceased their starformation at later epochs.

Multi-Wavelength Study of a Complete IRAC 3.6micron-Selected Galaxy Sample: a Fair Census of Red and Blue Populations at Redshifts 0.4-1