Work

On Possible Segregation of CH4 In CO2 In Interstellar Ice

Year: 2025

Type: conference-paper

Abstract: It is assumed that methane in icy mantles on the surface of interstellar grains is formed and contained prevalently in water-rich environment. Utilizing binary laboratory mixtures of methane (CH4 : H2O = 1 : 10 and CH4 : CO2 = 1 : 5) we obtained a description of methane deformation mode in the B335 protostar. It is shown that most methane is surrounded by CO2 rather than H2O. This is the second object where such a feature has been observed indicating a possibility of methane segregation towards the CO2-rich regions or the important role that CO2 plays in methane formation.

Source: Physics of Space: All-Russian Student Scientific Conference with International Participation

DOI: 10.15826/b978-5-7996-3986-0.67

Authors: R. S. Nakibov, V. M. Karteyeva, I. V. Petraskevich, M. E. Ozhiganov, M. G. Medvedev, A. I. Vasyunin

Institution: Ural Federal University

Language: English

Topic: Astrophysics and Star Formation Studies

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

SDG: Climate action

Open Access status: green

OpenAlex ID: W4412584748