2018AJ....155...19J


Query : 2018AJ....155...19J

2018AJ....155...19J - Astron. J., 155, 19-19 (2018/January-0)

A new standard for assessing the performance of high contrast imaging systems.

JENSEN-CLEM R., MAWET D., GOMEZ GONZALEZ C.A., ABSIL O., BELIKOV R., CURRIE T., KENWORTHY M.A., MAROIS C., MAZOYER J., RUANE G., TANNER A. and CANTALLOUBE F.

Abstract (from CDS):

As planning for the next generation of high contrast imaging instruments (e.g., WFIRST, HabEx, and LUVOIR, TMT-PFI, EELT-EPICS) matures and second-generation ground-based extreme adaptive optics facilities (e.g., VLT-SPHERE, Gemini-GPI) finish their principal surveys, it is imperative that the performance of different designs, post-processing algorithms, observing strategies, and survey results be compared in a consistent, statistically robust framework. In this paper, we argue that the current industry standard for such comparisons-the contrast curve-falls short of this mandate. We propose a new figure of merit, the "performance map," that incorporates three fundamental concepts in signal detection theory: the true positive fraction, the false positive fraction, and the detection threshold. By supplying a theoretical basis and recipe for generating the performance map, we hope to encourage the widespread adoption of this new metric across subfields in exoplanet imaging.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

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

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 1904 1
2 HD 218396b Pl 23 07 28.7157209544 +21 08 03.310767492           ~ 277 1
3 HD 218396c Pl 23 07 28.7157209544 +21 08 03.310767492           ~ 260 1
4 HD 218396 El* 23 07 28.7157209544 +21 08 03.310767492   6.21 5.953     F0+VkA5mA5 1138 0

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