MODELLING THE SPECTRAL ENERGY DISTRIBUTIONS OF THE ACCRETION DISKS OF YOUNG STARS WITH FOSSIL MAGNETIC FIELD
Section: STARS AND THE INTERSTELLAR MEDIUM
Authors:
1.
Ural Federal University
2.
Ural Federal University
Saint-Petersburg University
Chelyabinsk State University
Saint-Petersburg University
Chelyabinsk State University
Type:
Сonference article
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
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:
ISM: magnetic fields; accretion; accretion disks; magnetohydrodynamics (MHD)
Abstract (English):
This work focuses on the study of the thermal structure and observational appearance of the accretion discs of young stars that possess fossil magnetic fields. We analyse the influence of magnetohydrodynamics (MHD) effects on the disc temperature and its spectral energy distribution (SED). The simulations indicate that, with low accretion rates of $\dot{M} < 10^{-8}$ $M_{\odot}$/yr, Ohmic heating leads to an increase in the disc temperature by 100 K near the inner boundary. This effect causes an increase in the radiation flux of the disc in the mid-infrared range.
This work focuses on the study of the thermal structure and observational appearance of the accretion discs of young stars that possess fossil magnetic fields. We analyse the influence of magnetohydrodynamics (MHD) effects on the disc temperature and its spectral energy distribution (SED). The simulations indicate that, with low accretion rates of $\dot{M} < 10^{-8}$ $M_{\odot}$/yr, Ohmic heating leads to an increase in the disc temperature by 100 K near the inner boundary. This effect causes an increase in the radiation flux of the disc in the mid-infrared range.
Keywords:
ISM: magnetic fields; accretion; accretion disks; magnetohydrodynamics (MHD)
ISM: magnetic fields; accretion; accretion disks; magnetohydrodynamics (MHD)
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