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 investigate the large-scale structure of the interstellar medium (ISM)around the massive star cluster RCW38 in the [CII] 158 um line and polycyclicaromatic hydrocarbon (PAH) emission. We carried out [CII] line mapping of anarea of ~30'x15' for RCW~38 by a Fabry-Perot spectrometer on a 100 cmballoon-borne telescope with an angular resolution of ~1'.5. We compared the[CII] intensity map with the PAH and dust emission maps obtained by the AKARIsatellite. The [CII] emission shows a highly nonuniform distribution around thecluster, exhibiting the structure widely extended to the north and the eastfrom the center. The [CII] intensity rapidly drops toward the southwestdirection, where a CO cloud appears to dominate. We decompose the 3-160 umspectral energy distributions of the surrounding ISM structure into PAH as wellas warm and cool dust components with the help of 2.5-5 um spectra. We findthat the [CII] emission spatially corresponds to the PAH emission better thanto the dust emission, confirming the relative importance of PAHs forphoto-electric heating of gas in photo-dissociation regions. A naiveinterpretation based on our observational results indicates that molecularclouds associated with RCW38 are located both on the side of and behind thecluster.

Large-scale mapping of the massive star-forming region RCW38 in the [CII] and PAH emission