THE EXCITATION, ABUNDANCE, AND DISTRIBUTION OF MgC₂ and CaC₂ IN IRC+10216

Gupta, Harshal

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https://hdl.handle.net/2142/122578 Copy

Description

Title

THE EXCITATION, ABUNDANCE, AND DISTRIBUTION OF MgC₂ and CaC₂ IN IRC+10216

Author(s)

Gupta, Harshal

Contributor(s)

• Guélin, Michel
• Tercero, Belén
• Cabezas, Carlos
• Agúndez, Marcelino
• Pardo, Juan R.
• Cernicharo, Jose
• McCarthy, Michael C
• Changala, Bryan

Issue Date

2023-06-22

Keyword(s)

Astronomy

Abstract

The laboratory and astronomical discovery of the mental dicarbides, MgC₂ and CaC₂, discussed in the preceding talk represents a key advance in the study of metal carbides and fills a longstanding gap in the molecular inventory of evolved carbon stars. In this talk we will discuss how characterizing the distribution of the two species in IRC+10216, together with a careful analysis of their excitation and abundance might help elucidate the role of metals in the chemistry of IRC+10216, and the state of refractory elements in carbon-rich circumstellar environments more generally. We will also discuss the utility of dicarbides as physico-chemical probesᵃ of circumstellar regions, as well as the prospects of detecting larger metal-carbon compounds there.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Language

eng

Handle URL

https://hdl.handle.net/2142/122578

DOI

https://doi.org/10.15278/isms.2023.7071

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