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 an analysis of multi-wavelength observations of Monoceros R1 (MonR1) complex (at d ~760 pc). An elongated filament (length ~14 pc, mass ~1465Msun) is investigated in the complex, which is the most prominent structure inthe Herschel column density map. An analysis of the FUGIN 12CO(1-0) and13CO(1-0) line data confirms the existence of the filament traced in a velocityrange of [-5, +1] km/s. The filament is found to host two previously knownsites IC 446 and IC 447 at its opposite ends. A massive young stellar object(YSO) is embedded in IC 446, while IC 447 contains several massive B-typestars. The Herschel temperature map reveals the extended warm dust emission (atT_d ~ 15-21 K) toward both the ends of the filament. The Spitzer ratio map of4.5 micron/3.6 micron emission suggests the presence of photo-dissociationregions and signature of outflow activity toward IC 446 and IC 447. Based onthe photometric analysis of point-like sources, clusters of YSOs are tracedmainly toward the filament ends. The filament is found to be thermallysupercritical showing its tendency of fragmentation, which is further confirmedby the detection of a periodic oscillatory pattern (having a period of ~3-4 pc)in the velocity profile of 13CO. Our outcomes suggest that the fragmentsdistributed toward the filament ends have rapidly collapsed, and had formed theknown star-forming sites. Overall, the elongated filament in Mon R1 is apromising sample of the "end-dominated collapse" scenario, as discussed by Ponet al. (2011, 2012).

Star-forming sites IC 446 and IC 447: an outcome of end-dominated collapse of Monoceros R1 filament