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primary topic: Formylium as a tracer of circumstellar disks physics

Formylium as a tracer of circumstellar disks physics
type: Article
abstract: There are many different tracers of circumstellar disk physics, most notably, micrometer to millimeter-sized dust, and one of the most abundant molecules, CO. Formylium (HCO+) is another commonly observed species. Its chemistry is more complex than CO chemistry, and more interpretation steps are necessary to build the bridge between the disk structure and observed emission. Its isotopologs DCO+ and H13CO+ complement the picture and allow a more precise understanding of the disk structure. In this thesis, I present my results achieved by combining and developing physical modeling, chemical kinetics, and radiative transfer methods to understand circumstellar disks' physical properties through formylium isotopologs observations. I explain the observed DCO+ increase in the protoplanetary disk gap and use it as proof of the reduced amount of gas in the gaps. I show that HCO+ should be the brightest molecule after CO isotopologs in the gas-rich debris disks, and its brightness would reveal the elemental composition, but a next-generation observatory is needed to detect it. Then I present an application of the machine learning approach to predict the modeled disk chemistry instantaneously based on the pre-computed disk models' data set, allowing the replacement of computationally expensive thermo-chemical models in the fitting pipelines. Finally, I demonstrate the data which will be analyzed using this approach.
date: 2023
author list: authors
type: EPrint
type: DoctoralThesisEPrint
is part of: repository
has document: Formylium as a tracer of circumstellar disks physics (PDF)
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subject: 520 Astronomie

Formylium as a tracer of circumstellar disks physics (PDF)
type: Document
has file: Auflage_Thesis_Smirnov-Pinchukov_umlauts.pdf
has part: Auflage_Thesis_Smirnov-Pinchukov_umlauts.pdf

Formylium as a tracer of circumstellar disks physics (PDF)
type: Document
has file: cover outside.pdf
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Grigorii Smirnov-Pinchukov
type: Person
given name: Grigorii
family name: Smirnov-Pinchukov

Formylium as a tracer of circumstellar disks physics (Other)
type: Document
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Formylium as a tracer of circumstellar disks physics (Other)
type: Document
is version of: Formylium as a tracer of circumstellar disks physics (PDF)
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Formylium as a tracer of circumstellar disks physics (Other)
type: Document
is version of: Formylium as a tracer of circumstellar disks physics (PDF)
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Formylium as a tracer of circumstellar disks physics (Other)
type: Document
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Formylium as a tracer of circumstellar disks physics (Other)
type: Document
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Formylium as a tracer of circumstellar disks physics (Other)
type: Document
is version of: Formylium as a tracer of circumstellar disks physics (PDF)
is volatile version of: Formylium as a tracer of circumstellar disks physics (PDF)
islightbox thumbnail version of: Formylium as a tracer of circumstellar disks physics (PDF)
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Formylium as a tracer of circumstellar disks physics (Other)
type: Document
is version of: Formylium as a tracer of circumstellar disks physics (PDF)
is volatile version of: Formylium as a tracer of circumstellar disks physics (PDF)
ispreview thumbnail version of: Formylium as a tracer of circumstellar disks physics (PDF)
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Formylium as a tracer of circumstellar disks physics (Other)
type: Document
is version of: Formylium as a tracer of circumstellar disks physics (PDF)
is volatile version of: Formylium as a tracer of circumstellar disks physics (PDF)
ismedium thumbnail version of: Formylium as a tracer of circumstellar disks physics (PDF)
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Formylium as a tracer of circumstellar disks physics (Other)
type: Document
is version of: Formylium as a tracer of circumstellar disks physics (PDF)
is volatile version of: Formylium as a tracer of circumstellar disks physics (PDF)
issmall thumbnail version of: Formylium as a tracer of circumstellar disks physics (PDF)
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has part: small.jpg

Formylium as a tracer of circumstellar disks physics (Other)
type: Document
is version of: Formylium as a tracer of circumstellar disks physics (PDF)
is volatile version of: Formylium as a tracer of circumstellar disks physics (PDF)
is index codes version of: Formylium as a tracer of circumstellar disks physics (PDF)
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HTML Summary of #32400 Formylium as a tracer of circumstellar disks physics
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primary topic: Formylium as a tracer of circumstellar disks physics

520 Astronomie
type: Concept
preferred label: 520 Astronomy and allied sciences @en