Simulation of the H$\alpha$ absorption for the hot Jupiter HAT-P-32 b

Sharipov S.; Miroshnichenko Ilya; Shaikhislamov I.; Rumenskikh M.

doi:doi:10.26119/VAK2024.138

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$Simulation of the H$\alpha$ absorption for the hot Jupiter HAT-P-32 b$

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SIMULATION OF THE H

α

ABSORPTION FOR THE HOT JUPITER HAT-P-32 B

Section: EXOPLANETS

Proceedings: MODERN ASTRONOMY: FROM THE EARLY UNIVERSE TO EXOPLANETS AND BLACK HOLES Volume 1

UDK 52 Астрономия. Геодезия UDK 53 Физика UDK 520 Инструменты, приборы и методы астрономических наблюдений, измерений и анализа UDK 521 Теоретическая астрономия. Небесная механика. Фундаментальная астрономия. Теория динамической и позиционной астрономии UDK 523 Солнечная система UDK 524 Звезды и звездные системы. Вселенная Солнце и Солнечная система UDK 52-1 Метод изучения UDK 52-6 Излучение и связанные с ним процессы

GRNTI 41.00 АСТРОНОМИЯ GRNTI 29.35 Радиофизика. Физические основы электроники GRNTI 29.31 Оптика GRNTI 29.33 Лазерная физика GRNTI 29.27 Физика плазмы GRNTI 29.05 Физика элементарных частиц. Теория полей. Физика высоких энергий

OKSO 03.06.01 Физика и астрономия OKSO 03.05.01 Астрономия OKSO 03.04.03 Радиофизика

BBK 2 ЕСТЕСТВЕННЫЕ НАУКИ BBK 223 Физика

TBK 614 Астрономия TBK 6135 Оптика

BISAC SCI004000 Astronomy BISAC SCI005000 Physics / Astrophysics

Sharipov S. ¹

Miroshnichenko Ilya ²

Shaikhislamov I. ³

Rumenskikh M. ⁴

Author and publication information

Authors:

1. Institute of Laser Physics, SB RAS

2. Institute of Laser Physics, SB RAS

3. Institute of Laser Physics, SB RAS
Institute of Astronomy of the Russian Academy of Sciences

4. Institute of Laser Physics, SB RAS
Institute of Astronomy of the Russian Academy of Sciences

Type:

Сonference article

DOI:

https://doi.org/10.26119/VAK2024.138

EDN:

https://elibrary.ru/mobctn

Published:

27.12.2024

Subject area:

52
53
520
521
523
524
52-1
52-6
41.00
29.35
29.31
29.33
29.27
29.05
03.06.01
03.05.01
03.04.03
2
223
614
6135
SCI004000
SCI005000

Language:

English

Keywords:

planets and satellites: atmospheres; radiative transfer; scattering; hydrodynamics

Abstract and keywords

Abstract (English):
The paper presents the results of modeling the absorption spectrum in the H

α

and He 10830 Å lines for the hot Jupiter HAT-P-32 b. The simulation was carried out using a 3D hydrodynamic model coupled to a Monte Carlo model of Ly

α

photon transfer. It was determined that to explain the absorption in both lines at a ratio

H / H e = 99 / 1

, high values of the XUV flux and stellar Ly

α

flux are required:

F_{X U V} = 100

erg cm

^{- 2}

^{- 1}

and

I_{L y α} = 600

erg cm

^{- 2}

^{- 1}

, which may indicate high activity of the star. New parameters were also found that describe the absorption at

H / H e = 97 / 3

while requiring less extreme

F_{X U V} = 25

erg cm

^{- 2}

^{- 1}

and

I_{L y α} = 600

erg cm

^{- 2}

^{- 1}

. Monte Carlo modeling showed that the absorption in the H

α

line is formed by stellar photons producing H(2) concentrations at a level of

10^{2}

–

10^{3}

^{- 3}

in the atmospheric layer up to

2 R_{p}

, where the absorption occurs.

Keywords:
planets and satellites: atmospheres; radiative transfer; scattering; hydrodynamics

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References

1. Czesla S., Lampon M., Sanz-Forcada J., et al., 2022, Astronomy & Astrophysics, 657, id. A6

2. Linsky J.L., France K., Ayres T., 2013, Astrophysical Journal, 766, 2, id. A69

3. Miroshnichenko I.B., Shaikhislamov I.F., Berezutskii A.G., et al., 2021, Astronomy Reports, 65, p. 61

4. Shaikhislamov I.F., Khodachenko M.L., Lammer H., et al., 2020, Monthly Notices of the Royal Astronomical Society, 491, p. 3435

5. Yan D., Guo J., Seon K., et al., 2024, Astronomy and Astrophysics, 686, id. A208

6. Zhang Z., Morley C.V., Gully-Santiago M., et al., 2023, Science Advances, 9, id. eadf8736

$Simulation of the H$\alpha$ absorption for the hot Jupiter HAT-P-32 b$

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