2023MNRAS.523.5681N

Query : 2023MNRAS.523.5681N

2023MNRAS.523.5681N - Mon. Not. R. Astron. Soc., 523, 5681-5702 (2023/August-3)

Temperature-chemistry coupling in the evolution of gas giant atmospheres driven by stellar flares.

NICHOLLS H., HEBRARD E., VENOT O., DRUMMOND B. and EVANS E.

Abstract (from CDS):

The effect of enhanced UV irradiation associated with stellar flares on the atmospheric composition and temperature of gas giant exoplanets was investigated. This was done using a 1D radiative-convective-chemical model with self-consistent feedback between the temperature and the non-equilibrium chemistry. It was found that flare-driven changes to chemical composition and temperature give rise to prolonged trends in evolution across a broad range of pressure levels and species. Allowing feedback between chemistry and temperature plays an important role in establishing the quiescent structure of these atmospheres, and determines their evolution due to flares. It was found that cooler planets are more susceptible to flares than warmer ones, seeing larger changes in composition and temperature, and that temperature-chemistry feedback modifies their evolution. Long-term exposure to flares changes the transmission spectra of gas giant atmospheres; these changes differed when the temperature structure was allowed to evolve self-consistently with the chemistry. Changes in spectral features due to the effects of flares on these atmospheres can be associated with changes in composition. The effects of flares on the atmospheres of sufficiently cool planets will impact observations made with JWST. It is necessary to use self-consistent models of temperature and chemistry in order to accurately capture the effects of flares on features in the transmission spectra of cooler gas giants, but this depends heavily on the radiation environment of the planet.

Abstract Copyright: © 2023 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): astrochemistry - radiative transfer - planets and satellites: atmospheres - planets and satellites: gaseous planets - stars: flare

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 V* AD Leo PM* 10 19 36.2808181226 +19 52 12.010446571   10.82 9.52 9.19   dM3 1469 1

Query : 2023MNRAS.523.5681N

Basic data :
V* AD Leo -- High Proper Motion Star
Other object types: otypes_help 		* (2022AJ,AG,...), X (2009ApJ,1AXG,...), PM* (2013MNRAS,LHS,...), UV (2016ApJ,2EUVE,...), ** (**,ADS,...), Er* (2017ARep,[GKL99]), V* (V*), Rad ([CGL99]), NIR (2MASS), MIR (WISEA), IR (IRAS)
ICRS coord. (ep=J2000) : 		10 19 36.2808181226 +19 52 12.010446571 (Optical) [ 0.0240 0.0243 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		10 16 53.8612595372 +20 07 19.170732260 [ 0.0240 0.0243 90 ]
Gal coord. (ep=J2000) : 		216.4560230405550 +54.5800243539671 [ 0.0240 0.0243 90 ]
Proper motions mas/yr : 		-498.620 -43.428 [0.028 0.026 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 12.43 [0.0002] / z(spectroscopic) 0.000041 [0.000000] / cz 12.43 [0.00]
   (Opt) A 2018MNRAS.475.1960F
Parallaxes (mas): 		201.4064 [0.0296] A 2020yCat.1350....0G
Spectral type: 		dM3 C 2019AJ....157...63K
Fluxes (10) :
B 10.82 [0.01] D 2012yCat.1322....0Z
V 9.52 [0.00] D 2012yCat.1322....0Z
R 9.19 [0.04] D 2012yCat.1322....0Z
G 8.204091 [0.002832] C 2020yCat.1350....0G
J 5.449 [0.027] C 2003yCat.2246....0C
H 4.843 [0.020] E 2003yCat.2246....0C
K 4.593 [0.017] C 2003yCat.2246....0C
g 10.124 [0.05] D 2012yCat.1322....0Z
r 9.185 [0.05] D 2012yCat.1322....0Z
i 7.756 [0.03] D 2012yCat.1322....0Z
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 : 61 Display criteria :

Identifiers (68) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

LHS 5167 EXO 1016.8+2007 8pc 204.60 UBV 9550
** STF 1424C GC 14167 PLX 2420 UCAC2 38796273
ADS 7724 C GCRV 6499 PLX 2420.00 UCAC4 550-048962
AG+20 1170 GEN# +0.02002465 PM J10196+1952 USNO-B1.0 1098-00182796
AP J10193634+1952122 GES J10193576+1952114 PPM 127309 V* AD Leo
ASCC 863621 G 54-23 Pul -3 660015 WEB 9274
1AXG J101937+1951 GJ 388 RBS 855 WISEA J101935.88+195211.9
BD+20 2465 GPM 154.902458+19.870105 2RE J101936+195209 Zkh 141
CCDM J10199+1951C IRAS 10169+2007 2RE J1019+195 [CGL99] 10
Ci 18 1244 JP11 62 RE J1019+195 [FS2003] 0555
Ci 20 574 Karmn J10196+198 RE J101935+195212 [GKL99] 216
CNS5 2533 Karmn J10196+198AB RX J1019.6+1952 [JHC84] 155
2E 2259 LSPM J1019+1952 1RXS J101936.3+195215 [R97] NGC 3227 8
2E 1016.8+2007 LTT 12761 SAO 81292 [RHG95] 1616
1ES 1016+20.1 2MASS J10193634+1952122 StKM 2-626 [ZEH2003] RX J1019.6+1952 3
2EUVE J1019+19.8 MCC 574 TIC 95431305 Gaia DR3 625453654702751872
EUVE J1019+19.8 NLTT 24015 TYC 1423-174-1 Gaia DR2 625453654702751872

References (1469 between 1850 and 2026) (Total 1469)
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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Collections of Measurements Description of Measurements

Velocities : 13    Distance : 3    Var : 1    Rot : 10    Fe/H : 30    Plx : 3    PM : 11    SpT : 24   

   

Observing logs
Herschel : 2    IUE : 131    XMM : 1   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : V* AD Leo

Link by name to the catalogue in VizieR :

LHS 5167 AG+20 1170 AP J10193634+1952122 BD+20 2465 CCDM J10199+1951C
2E 2259 EUVE J1019+19.8 G 54-23 GJ 388 IRAS 10169+2007
LSPM J1019+1952 2MASS J10193634+1952122 NLTT 24015 PLX 2420 PPM 127309
2RE J101936+195209 2RE J1019+195 1RXS J101936.3+195215 SAO 81292 TYC 1423-174-1
UCAC2 38796273 UCAC4 550-048962 USNO-B1.0 1098-00182796 V* AD Leo WISEA J101935.88+195211.9
[GKL99] 216 Gaia DR3 625453654702751872 Gaia DR2 625453654702751872

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