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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We present the results of a systematic study of the rest-frame opticalmorphology of quiescent galaxies at $z \geq 3$ using the Near-Infrared Camera(NIRCam) onboard $JWST$. Based on a sample selected by $UVJ$ color or $NUVUVJ$color, we focus on 26 quiescent galaxies with$9.8<\log{(M_\star/M_\odot)}<11.4$ at $2.8<z_{\rm phot}<4.6$ with publiclyavailable $JWST$ data. Their sizes are constrained by fitting the S\'ersicprofile to all available NIRCam images. We see a negative correlation betweenthe observed wavelength and the size in our sample and derive their size at therest-frame $0.5\, {\rm \mu m}$ taking into account this trend. Our quiescentgalaxies show a significant correlation between the rest-frame $0.5\, {\rm \mum}$ size and the stellar mass at $z\geq3$. The analytical fit for them at$\log{(M_\star/M_\odot)}>10.3$ implies that our size - stellar mass relationsare below those at lower redshifts, with the amplitude of $\sim0.6\, {\rm kpc}$at $M_\star = 5\times 10^{10}\, M_\odot$. This value agrees with theextrapolation from the size evolution of quiescent galaxies at $z<3$ in theliterature, implying that the size of quiescent galaxies increasesmonotonically from $z\sim3-5$. Our sample is mainly composed of galaxies withbulge-like structures according to their median S\'ersic index and axis ratioof $n\sim3-4$ and $q\sim0.6-0.8$, respectively. On the other hand, there is atrend of increasing fraction of galaxies with low S\'ersic index, suggesting$3<z<5$ might be the epoch of onset of morphological transformation with afraction of very notable disky quenched galaxies.

Size - Stellar Mass Relation and Morphology of Quiescent Galaxies at $z\geq3$ in Public $JWST$ Fields