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

[Abridged] We combined HST images from the Cosmic Assembly Near-infrared DeepExtragalactic Legacy Survey with JWST images from the Cosmic Evolution EarlyRelease Science (CEERS) survey to measure the stellar and dust-obscured starformation distributions of a mass-complete ($>10^{10}M_\odot$) sample of 69star-forming galaxies (SFGs) at $0.1<z<2.5$. Rest-mid-infrared (rest-MIR)morphologies (sizes and S\'ersic indices) were determined using their sharpestMid-InfraRed Instrument (MIRI) images dominated by dust emission. Rest-MIRS\'ersic indices were only measured for the brightest MIRI sources ($S/N>75$;35 galaxies). At lower $S/N$, simulations show that simultaneous measurementsof the size and S\'ersic index become unreliable. We extended our study tofainter sources ($S/N>10$; 69 galaxies) by fixing their S\'ersic index tounity. The S\'ersic index of bright galaxies ($S/N>75$) has a median value of0.7, which, together with their axis ratio distribution, suggests a disk-likemorphology in the rest-MIR. Galaxies above the main sequence (MS; i.e.,starbursts) have rest-MIR sizes that are a factor 2 smaller than theirrest-optical sizes. The median rest-optical to rest-MIR size ratio of MSgalaxies increases with stellar mass, from 1.1 at $10^{9.8}M_\odot$ to 1.6 at$10^{11}M_\odot$. This mass-dependent trend resembles the one found in theliterature between the rest-optical and rest-near-infrared sizes of SFGs,suggesting that it is due to radial color gradients affecting rest-opticalsizes and that the sizes of the stellar and star-forming components of SFGsare, on average, consistent at all masses. There is, however, a smallpopulation of SFGs (15%) with a compact star-forming component embedded in alarger stellar structure. This could be the missing link between galaxies withan extended stellar component and those with a compact stellar component, theso-called blue nuggets.

CEERS: MIRI deciphers the spatial distribution of dust-obscured star formation in galaxies at $0.1