The chemistry of episodic accretion

C. Rab; V. Elbakyan; E. Vorobyov; A. Postel; M. Güdel; O. Dionatos; M. Audard; I. Kamp; W. F. Thi; P. Woitke

doi:10.1017/S1743921319009165

The chemistry of episodic accretion

C. Rab^*, V. Elbakyan, E. Vorobyov, A. Postel, M. Güdel, O. Dionatos, M. Audard, I. Kamp, W. F. Thi, P. Woitke

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Episodic accretion is an important process in the evolution of young stars and their surroundings. A consequence of an episodic accretion event is a luminosity burst, which heats the protostellar environment and has a long lasting impact on the chemical evolution of the disk and envelope of young stars. We present a new model for the chemistry of episodic accretion based on the 2D radiation thermo-chemical disk code ProDiMo. We discuss the impact of an episodic accretion burst on the chemical evolution of CO and its observables. Furthermore we present a model for the outbursting source V883 Ori where we fitted available observational data to get an accurate physical structure that allows for a detailed study of the chemistry.

Original language	English
Title of host publication	Laboratory Astrophysics
Subtitle of host publication	From Observations to Interpretation
Publisher	International Astronomical Union (IAU)
Pages	440-442
Number of pages	3
Volume	15
DOIs	https://doi.org/10.1017/S1743921319009165
Publication status	Published - 12 Oct 2020
Event	IAU Symposium 350 - Cambridge, United Kingdom Duration: 14 Apr 2019 → 19 Apr 2019 Conference number: 350 https://www.iau.org/science/meetings/past/symposia/2315/

Publication series

Name	Proceedings of the International Astronomical Union
Publisher	Cambridge University Press
Number	S350
Volume	15
ISSN (Print)	1743-9213

Conference

Conference	IAU Symposium 350
Country/Territory	United Kingdom
City	Cambridge
Period	14/04/19 → 19/04/19
Internet address	https://www.iau.org/science/meetings/past/symposia/2315/

Keywords

Stars: circumstellar matter
Accretion
Accretion disks
Astrochemistry
Methods: Numerical
Radiative transfer
Stars: Pre-main-sequence

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10.1017/S1743921319009165

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Rab, C., Elbakyan, V., Vorobyov, E., Postel, A., Güdel, M., Dionatos, O., Audard, M., Kamp, I., Thi, W. F., & Woitke, P. (2020). The chemistry of episodic accretion. In Laboratory Astrophysics: From Observations to Interpretation (Vol. 15, pp. 440-442). (Proceedings of the International Astronomical Union; Vol. 15, No. S350). International Astronomical Union (IAU). https://doi.org/10.1017/S1743921319009165

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title = "The chemistry of episodic accretion",

abstract = "Episodic accretion is an important process in the evolution of young stars and their surroundings. A consequence of an episodic accretion event is a luminosity burst, which heats the protostellar environment and has a long lasting impact on the chemical evolution of the disk and envelope of young stars. We present a new model for the chemistry of episodic accretion based on the 2D radiation thermo-chemical disk code ProDiMo. We discuss the impact of an episodic accretion burst on the chemical evolution of CO and its observables. Furthermore we present a model for the outbursting source V883 Ori where we fitted available observational data to get an accurate physical structure that allows for a detailed study of the chemistry. ",

keywords = "Stars: circumstellar matter, Accretion, Accretion disks, Astrochemistry, Methods: Numerical, Radiative transfer, Stars: Pre-main-sequence",

author = "C. Rab and V. Elbakyan and E. Vorobyov and A. Postel and M. G{\"u}del and O. Dionatos and M. Audard and I. Kamp and Thi, {W. F.} and P. Woitke",

year = "2020",

month = oct,

day = "12",

doi = "10.1017/S1743921319009165",

language = "English",

volume = "15",

series = "Proceedings of the International Astronomical Union",

publisher = "International Astronomical Union (IAU)",

number = "S350",

pages = "440--442",

booktitle = "Laboratory Astrophysics",

note = "IAU Symposium 350 ; Conference date: 14-04-2019 Through 19-04-2019",

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Rab, C, Elbakyan, V, Vorobyov, E, Postel, A, Güdel, M, Dionatos, O, Audard, M, Kamp, I, Thi, WF & Woitke, P 2020, The chemistry of episodic accretion. in Laboratory Astrophysics: From Observations to Interpretation. vol. 15, Proceedings of the International Astronomical Union, no. S350, vol. 15, International Astronomical Union (IAU), pp. 440-442, IAU Symposium 350, Cambridge, United Kingdom, 14/04/19. https://doi.org/10.1017/S1743921319009165

The chemistry of episodic accretion. / Rab, C.; Elbakyan, V.; Vorobyov, E. et al.
Laboratory Astrophysics: From Observations to Interpretation. Vol. 15 International Astronomical Union (IAU), 2020. p. 440-442 (Proceedings of the International Astronomical Union; Vol. 15, No. S350).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - The chemistry of episodic accretion

AU - Rab, C.

AU - Elbakyan, V.

AU - Vorobyov, E.

AU - Postel, A.

AU - Güdel, M.

AU - Dionatos, O.

AU - Audard, M.

AU - Kamp, I.

AU - Thi, W. F.

AU - Woitke, P.

N1 - Conference code: 350

PY - 2020/10/12

Y1 - 2020/10/12

N2 - Episodic accretion is an important process in the evolution of young stars and their surroundings. A consequence of an episodic accretion event is a luminosity burst, which heats the protostellar environment and has a long lasting impact on the chemical evolution of the disk and envelope of young stars. We present a new model for the chemistry of episodic accretion based on the 2D radiation thermo-chemical disk code ProDiMo. We discuss the impact of an episodic accretion burst on the chemical evolution of CO and its observables. Furthermore we present a model for the outbursting source V883 Ori where we fitted available observational data to get an accurate physical structure that allows for a detailed study of the chemistry.

AB - Episodic accretion is an important process in the evolution of young stars and their surroundings. A consequence of an episodic accretion event is a luminosity burst, which heats the protostellar environment and has a long lasting impact on the chemical evolution of the disk and envelope of young stars. We present a new model for the chemistry of episodic accretion based on the 2D radiation thermo-chemical disk code ProDiMo. We discuss the impact of an episodic accretion burst on the chemical evolution of CO and its observables. Furthermore we present a model for the outbursting source V883 Ori where we fitted available observational data to get an accurate physical structure that allows for a detailed study of the chemistry.

KW - Stars: circumstellar matter

KW - Accretion

KW - Accretion disks

KW - Astrochemistry

KW - Methods: Numerical

KW - Radiative transfer

KW - Stars: Pre-main-sequence

U2 - 10.1017/S1743921319009165

DO - 10.1017/S1743921319009165

M3 - Conference contribution

AN - SCOPUS:85094833560

VL - 15

T3 - Proceedings of the International Astronomical Union

SP - 440

EP - 442

BT - Laboratory Astrophysics

PB - International Astronomical Union (IAU)

T2 - IAU Symposium 350

Y2 - 14 April 2019 through 19 April 2019

ER -

The chemistry of episodic accretion

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