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 arcsecond-scale mid-ir photometry (in the 10.5 micron N band andat 24.8 microns), and low resolution spectra in the N band (R~100) of acandidate high mass protostellar object (HMPO) in IRAS 18151-1208 and of twoHMPO candidates in IRAS 20343+4129, IRS 1 and IRS 3. In addition we presenthigh resolution mid-ir spectra (R~80000) of the two HMPO candidates in IRAS20343+4129. These data are fitted with simple models to estimate the masses ofgas and dust associated with the mid-ir emitting clumps, the column densitiesof overlying absorbing dust and gas, the luminosities of the HMPO candidates,and the likely spectral type of the HMPO candidate for which [Ne II] 12.8micron emission was detected (IRAS 20343+4129 IRS 3). We suggest that IRAS18151-1208 is a pre-ultracompact HII region HMPO, IRAS 20343+4129 IRS 1 is anembedded young stellar object with the luminosity of a B3 star, and IRAS20343+4129 IRS 3 is a B2 ZAMS star that has formed an ultracompact HII regionand disrupted its natal envelope.

Mid-Infrared Photometry and Spectra of Three High Mass Protostellar Candidates at IRAS 18151-1208 and IRAS 20343+4129