2024MNRAS.531..403B

Query : 2024MNRAS.531..403B

2024MNRAS.531..403B - Mon. Not. R. Astron. Soc., 531, 403-421 (2024/June-2)

DanceCam: atmospheric turbulence mitigation in wide-field astronomical images with short-exposure video streams.

BIALEK S., BERTIN E., FABBRO S., BOUY H., RIVET J.-P., LAI O. and CUILLANDRE J.-C.

Abstract (from CDS):

We introduce a novel technique to mitigate the adverse effects of atmospheric turbulence on astronomical imaging. Utilizing a video-to-image neural network trained on simulated data, our method processes a sliding sequence of short-exposure (∼0.2 s) stellar field images to reconstruct an image devoid of both turbulence and noise. We demonstrate the method with simulated and observed stellar fields, and show that the brief exposure sequence allows the network to accurately associate speckles to their originating stars and effectively disentangle light from adjacent sources across a range of seeing conditions, all while preserving flux to a lower signal-to-noise ratio than an average stack. This approach results in a marked improvement in angular resolution without compromising the astrometric stability of the final image.

Journal keyword(s): methods: data analysis - methods: observational - techniques: image processing - software: simulations - turbulence - atmospheric effects

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	M 92	GlC	17 17 07.39	+43 08 09.4			6.52			~	2240	0

Query : 2024MNRAS.531..403B

Basic data :

M 92 -- Globular Cluster

* (AG,BD,...), GlC (2013A&A,GCl), Cl* (C,[KPS2012]), UV (TD1)

17 17 07.39 +43 08 09.4 (Optical) [ ] D 2010AJ....140.1830G

17 15 35.15 +43 11 19.1 [ ]

068.33840 +34.85891 [ ]

-4.935 -0.625 [0.024 0.024 90] C 2021MNRAS.505.5978V

V(km/s) -120.7 [0.3] / z(spectroscopic) -0.000403 [0.000001] / cz -120.68 [0.30] (Opt) A 2018MNRAS.478.1520B

0.112 [0.010] C 2021MNRAS.505.5978V

11.2 11.2 90 (Opt) D 1989Sci...246.1066D

V 6.52 [~] D 2012AJ....144..126D

K 4.36 [~] D 2008MNRAS.389.1924F

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`M 92`	`C 1715+432`	`HD 156711`	`SAO 46606`
`AG+43 1399`	`GCl 59`	`NGC 6341`	`TD1 20249`
`BD+43 2711`	`GCRV 9983`	`PPM 56062`	`[KPS2012] MWSC 2557`

References (2240 between 1850 and 2026) (Total 2240)
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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Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : M 92

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`AG+43 1399`	`BD+43 2711`	`HD 156711`	`NGC 6341`	`PPM 56062`
`SAO 46606`	`TD1 20249`

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