2024ApJ...974..208S

Query : 2024ApJ...974..208S

2024ApJ...974..208S - Astrophys. J., 974, 208 (2024/October-3)

A Close Pair of Orbiters Embedded in a Gaseous Disk: The Repulsive Effect.

SANCHEZ-SALCEDO F.J., MASSET F.S. and CORNEJO S.

Abstract (from CDS):

We develop a theoretical framework and use 2D hydrodynamical simulations to study the repulsive effect between two close orbiters embedded in an accretion disk. We consider orbiters on fixed Keplerian orbits with masses low enough to open shallow gaps. The simulations indicate that the repulsion is larger for more massive orbiters and decreases with the orbital separation and the disk's viscosity. We use two different assumptions to derive theoretical scaling relations for the repulsion. A first scenario assumes that each orbiter absorbs the angular momentum deposited in its horseshoe region by the companion's wake. A second scenario assumes that the corotation torques of the orbiters are modified because the companion changes the underlying radial gradient of the disk surface density. We find a substantial difference between the predictions of these two scenarios. The first one fails to reproduce the scaling of the repulsion with the disk viscosity and generally overestimates the strength of the repulsion. The second scenario, however, gives results that are broadly consistent with those obtained in the simulations.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Active galactic nuclei - Exoplanet dynamics - Hydrodynamical simulations - Planetary-disk interactions - Planetary migration - Protoplanetary disks

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 Kepler-36 Er* 19 25 00.0428079600 +49 13 54.630900876   12.795 12.174 12.094   F2 251 1

Query : 2024ApJ...974..208S

Basic data :
Kepler-36 -- Eruptive Variable
Other object types: otypes_help 		* (2009yCat,TYC,...), Er* (2021AJ), Em* (2023ApJS), Ro* (2015ApJ), NIR (2MASS), Opt (LAMOST)
ICRS coord. (ep=J2000) : 		19 25 00.0428079600 +49 13 54.630900876 (Optical) [ 0.0076 0.0091 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		19 23 38.4259324721 +49 07 54.590929697 [ 0.0076 0.0091 90 ]
Gal coord. (ep=J2000) : 		080.9328073942531 +15.1020130125089 [ 0.0076 0.0091 90 ]
Proper motions mas/yr : 		1.151 -8.064 [0.011 0.011 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 9.042480 [0.035138] / z(spectroscopic) 0.000030 [0.000000] / cz 9.04 [0.04]
   (NIR) A 2020AJ....160..120J
Parallaxes (mas): 		1.8528 [0.0087] A 2020yCat.1350....0G
Spectral type: 		F2 E 2022ApJS..261...26S
Fluxes (10) :
B 12.795 [0.01] D 2012yCat.1322....0Z
V 12.174 [0.02] D 2012yCat.1322....0Z
R 12.094 [0.06] E 2012yCat.1322....0Z
G 12.070165 [0.002760] C 2020yCat.1350....0G
J 11.124 [0.023] C 2003yCat.2246....0C
H 10.850 [0.029] C 2003yCat.2246....0C
K 10.788 [0.022] C 2003yCat.2246....0C
g 12.418 [0.02] D 2012yCat.1322....0Z
r 12.126 [0.03] D 2012yCat.1322....0Z
i 11.971 [0.01] D 2012yCat.1322....0Z
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 2 		Display criteria :

Identifiers (14) :
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TYC 3551-2464-1 KOI-277 SPOCS 3064 Gaia DR2 2129931456691176576
AP J19250004+4913545 LAMOST J192500.04+491354.6 TIC 350810590 Gaia DR1 2129931456691176576
Kepler-36 LAMOST J192500.03+491354.9 UCAC4 697-066041
KIC 11401755 2MASS J19250004+4913545 Gaia DR3 2129931456691176576

References (251 between 1850 and 2026) (Total 251)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Velocities : 14    Diameter : 1    Distance : 2    Var : 2    Rot : 8    Fe/H : 25    Plx : 3    PM : 2    SpT : 4   

   

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TYC 3551-2464-1 AP J19250004+4913545 KIC 11401755 2MASS J19250004+4913545 UCAC4 697-066041
Gaia DR3 2129931456691176576 Gaia DR2 2129931456691176576 Gaia DR1 2129931456691176576

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