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/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

9 págs.; 8 figs.; 3 tabs.Physical and spectroscopic properties of ices of C2H4 and CH4:C2H4 mixtures with 3:1, 1:1\udand 1:3 ratios have been investigated at 30 K. Two laboratories are involved in this work. In\udone of them, the density and refractive index of the samples have been measured by using\uda cryogenic quartz microbalance and laser interferometric techniques. In the other one, IR\udspectra have been recorded in the near- and mid-infrared regions, and band shifts with respect\udto the pure species, band strengths of the main bands, and the optical constants in both regions\udhave been determined. Previous data on ethylene and the mixtures studied here were scarce.\udFor methane, both the wavenumbers and band strengths have been found to follow a regular\udpattern of decrease with increasing dilution, but no pattern has been detected for ethylene\udvibrations. The method employed for the preparation of the samples, by vapour deposition\udunder vacuum, is thought to be adequate to mimic the structure of astrophysical ices. Possible\udastrophysical implications, especially by means of the optical constants reported here, have\udbeen discussed.  2016 The Authors; Published by Oxford University Press on behalf of the Royal Astronomical SocietyThis work has been funded by the Ministerio de Ciencia y Competitividad\ud(MINECO) of Spain under grants FIS2013-48087-C2-1P,\udFIS2013-48087-C2-2P and AYA2015-71975-REDT ‘Polvo Cosmico’\udby the Ministerio de Ciencia e Innovacion of Spain under\udgrant CDS2009-00038 and by the European Research Council\udproject ERC-2013-Syg 610256 ‘Nanocosmos’. GM acknowledges\udMINECO PhD grant BES-2014-069355.Peer reviewe

Physical and spectroscopic properties of pure C2H4and CH4:C2H4ices

Physical and spectroscopic properties of pure C₂H₄and CH₄:C₂H₄ices