Bright C<sub>2</sub>H emission in protoplanetary discs in Lupus: high volatile C/O &gt; 1 ratios

Miotello, A.; Facchini, Stefano; F. van Dishoeck, E.; Cazzoletti, P.; Testi, L.; P. Williams, Jonathan; Ansdell, Megan; van Terwisga, Sierk; van der Marel, Nienke

doi:10.1051/0004-6361/201935441

Public

Bright C<sub>2</sub>H emission in protoplanetary discs in Lupus: high volatile C/O > 1 ratios

Shared by NobleBlocks on Sep 28, 2019 • 12:00 AM UTC

Authors:

A. Miotello

Stefano Facchini

E. F. van Dishoeck

Abstract

Context. Recent ALMA surveys in different star-forming regions have shown that CO emission in protoplanetary discs is much fainter than expected. Accordingly, CO-based gas masses and gas to dust ratios are orders of magnitude lower than previously thought. This may be explained either as fast gas di...

Subject

Line (geometry)

Astrophysics

Physics

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