2018ApJ...868....6S

Query : 2018ApJ...868....6S

2018ApJ...868....6S - Astrophys. J., 868, 6-6 (2018/November-3)

Recurrence quantification analysis as a post-processing technique in adaptive optics high-contrast imaging.

STANGALINI M., LI CAUSI G., PEDICHINI F., ANTONIUCCI S., MATTIOLI M., CHRISTOU J., CONSOLINI G., HOPE D., JEFFERIES S.M., PIAZZESI R. and TESTA V.

Abstract (from CDS):

In this work we explore the possibility of using recurrence quantification analysis (RQA) in astronomical high-contrast imaging to statistically discriminate the signal of faint objects from speckle noise. To this end, we tested RQA on a sequence of high frame rate (1 kHz) images acquired with the SHARK-VIS forerunner at the Large Binocular Telescope. Our tests show promising results in terms of detection contrasts at angular separations as small as 50 mas, especially when RQA is applied to a very short sequence of data (2 s). These results are discussed in light of possible science applications and with respect to other techniques such as, for example, angular differential imaging and speckle-free imaging.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): methods: statistical - techniques: high angular resolution - techniques: image processing

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 190360c Pl 20 03 37.4050868074 +29 53 48.492435887           ~ 62 1

Query : 2018ApJ...868....6S

Basic data :
HD 190360c -- Extra-solar Planet
Other object types: otypes_help 		Pl? (), * (GJ,HD), Pl (2005ApJ)
ICRS coord. (ep=J2000) : 		20 03 37.4050868074 +29 53 48.492435887 (Optical) [ 0.0209 0.0266 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		20 01 33.9615748756 +29 45 43.973504502 [ 0.0209 0.0266 90 ]
Gal coord. (ep=J2000) : 		067.4109067167920 -00.6724628542619 [ 0.0209 0.0266 90 ]
Proper motions mas/yr : 		683.196 -525.501 [0.027 0.036 90] A 2020yCat.1350....0G
Parallaxes (mas): 		62.4865 [0.0354] A 2020yCat.1350....0G
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GJ 777 c HD 190360c

References (62 between 1850 and 2026) (Total 62)
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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GJ 777 c HD 190360c

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