2023MNRAS.522..976A

Query : 2023MNRAS.522..976A

2023MNRAS.522..976A - Mon. Not. R. Astron. Soc., 522, 976-981 (2023/June-2)

Modelling the optical energy profile of the 2021 October Jupiter impact flash.

ARIMATSU K., TSUMURA K., USUI F. and WATANABE J.-I.

Abstract (from CDS):

We have conducted numerical simulations to reproduce the observed optical energy profile of the 2021 October 15 (UT) impact flash on Jupiter, which was the largest and the most well-observed flash event detected by ground-based movie observations. The observed long-duration (∼5.5 s) optical emission can be reproduced by an impact of an object with an exceptionally small angle of entry relative to the horizontal. The apparent lack of the impact debris feature despite the large impact object was possibly due to the shallower angle of entry (≤12°), which resulted in the lower ablation per unit volume at altitudes higher than $50 \, {\rm km}$, and the volume densities of the ablated materials were too low to allow the debris particulates to coagulate. The absence of temporal methane absorption change in the observed flash spectrum is consistent with the best-fitting results. The model better fits the observed optical energy profile for weaker material (cometary and stony) cases than for metallic ones. Based on the simulation results, prospects for future observations of impact flashes are discussed.

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

Journal keyword(s): comets: general - Kuiper belt: general - meteorites, meteors, meteoroids - planets and satellites: individual: Jupiter

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 * eps Aqr * 20 47 40.5495728200 -09 29 44.796936843 3.79 3.77 3.77 3.70 3.70 B9.5V 292 0

Query : 2023MNRAS.522..976A

Basic data :
* eps Aqr -- Star
Other object types: otypes_help 		* (*,BD,...), PM* (2007A&A), UV (TD1), NIR (2MASS), IR (IRAS)
ICRS coord. (ep=J2000) : 		20 47 40.5495728200 -09 29 44.796936843 (Optical) [ 0.2715 0.1373 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		20 44 58.2132527025 -09 40 48.260707880 [ 0.2715 0.1373 90 ]
Gal coord. (ep=J2000) : 		037.6806428807293 -30.1049349636779 [ 0.2715 0.1373 90 ]
Proper motions mas/yr : 		33.923 -34.936 [0.429 0.286 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -19.82 [0.58] / z(spectroscopic) -0.000066 [0.000002] / cz -19.82 [0.58]
   (Opt) A 2022yCat.1355....0G
Parallaxes (mas): 		13.3619 [0.3737] A 2020yCat.1350....0G
Spectral type: 		B9.5V C 2006MNRAS.371..252L
Fluxes (9) :
U 3.79 [~] C 2002yCat.2237....0D
B 3.77 [~] C 2002yCat.2237....0D
V 3.77 [~] C 2002yCat.2237....0D
R 3.70 [~] C 2002yCat.2237....0D
G 3.774703 [0.003207] C 2022yCat.1355....0G
I 3.70 [~] C 2002yCat.2237....0D
J 3.72 [~] C 2002yCat.2237....0D
H 3.71 [~] C 2002yCat.2237....0D
K 3.69 [~] C 2002yCat.2237....0D
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Identifiers (35) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* eps Aqr HIC 102618 PLX 4960.00 TYC 5760-1997-1
* 2 Aqr HIP 102618 PMC 90-93 550 UBV 17998
BD-10 5506 HR 7950 PPM 204453 UBV M 25159
FK5 781 IRAS 20449-0940 ROT 3036 uvby98 100198001
GC 28978 JP11 3276 SACS 455 WEB 18594
GCRV 13033 2MASS J20474055-0929447 SAO 144810 YZ 99 7360
GEN# +1.00198001 N30 4597 SKY# 39419 Gaia DR2 6903096911031159424
GSC 05760-01997 NAME Albali TD1 27255 Gaia DR3 6903096911032851584
HD 198001 PLX 4960 TIC 51750453

References (292 between 1850 and 2026) (Total 292)
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 : 9    Distance : 2    Rot : 16    Fe/H : 13    Plx : 5    PM : 6    SpT : 21   

   

Observing logs
ISO : 3   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : * eps Aqr

Link by name to the catalogue in VizieR :

BD-10 5506 FK5 781 GSC 05760-01997 HD 198001 HIC 102618
HIP 102618 HR 7950 IRAS 20449-0940 2MASS J20474055-0929447 PLX 4960
PPM 204453 SAO 144810 TD1 27255 TYC 5760-1997-1 uvby98 100198001
Gaia DR2 6903096911031159424 Gaia DR3 6903096911032851584

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