2018AJ....156..268Z

Query : 2018AJ....156..268Z

2018AJ....156..268Z - Astron. J., 156, 268-268 (2018/December-0)

ExoGAN: retrieving exoplanetary atmospheres using deep convolutional Generative Adversarial networks.

ZINGALES T. and WALDMANN I.P.

Abstract (from CDS):

Atmospheric retrievals on exoplanets usually involve computationally intensive Bayesian sampling methods. Large parameter spaces and increasingly complex atmospheric models create a computational bottleneck forcing a trade-off between statistical sampling accuracy and model complexity. It is especially true for upcoming JWST and ARIEL observations. We introduce ExoGAN, the Exoplanet Generative Adversarial Network, a new deep-learning algorithm able to recognize molecular features, atmospheric trace-gas abundances, and planetary parameters using unsupervised learning. Once trained, ExoGAN is widely applicable to a large number of instruments and planetary types. The ExoGAN retrievals constitute a significant speed improvement over traditional retrievals and can be used either as a final atmospheric analysis or provide prior constraints to subsequent retrieval.

Abstract Copyright: © 2018. The American Astronomical Society.

Journal keyword(s): methods: statistical - planets and satellites: atmospheres - radiative transfer - techniques: spectroscopic

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 HD 189733b Pl 20 00 43.7129433648 +22 42 39.073143456           ~ 1610 1

Query : 2018AJ....156..268Z

Basic data :
HD 189733b -- Extra-solar Planet
Other object types: otypes_help 		Pl? (), Pl (2005A&A), * (HD)
ICRS coord. (ep=J2000) : 		20 00 43.7129433648 +22 42 39.073143456 (Optical) [ 0.0097 0.0119 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		19 58 34.1039144743 +22 34 31.825058532 [ 0.0097 0.0119 90 ]
Gal coord. (ep=J2000) : 		060.9630654133127 -03.9222685127365 [ 0.0097 0.0119 90 ]
Proper motions mas/yr : 		-3.208 -250.323 [0.011 0.014 90] A 2020yCat.1350....0G
Parallaxes (mas): 		50.5668 [0.0162] A 2020yCat.1350....0G
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HD 189733b

References (1610 between 1850 and 2026) (Total 1610)
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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HD 189733b

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