2002A&A...391..369K


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.21CEST13:10:01

2002A&A...391..369K - Astronomy and Astrophysics, volume 391, 369-377 (2002/8-3)

A box-fitting algorithm in the search for periodic transits.

KOVACS G., ZUCKER S. and MAZEH T.

Abstract (from CDS):

We study the statistical characteristics of a box-fitting algorithm to analyze stellar photometric time series in the search for periodic transits by extrasolar planets. The algorithm searches for signals characterized by a periodic alternation between two discrete levels, with much less time spent at the lower level. We present numerical as well as analytical results to predict the possible detection significance at various signal parameters. It is shown that the crucial parameter is the effective signal-to-noise ratio - the expected depth of the transit divided by the standard deviation of the measured photometric average within the transit. When this parameter exceeds the value of 6 we can expect a significant detection of the transit. We show that the box-fitting algorithm performs better than other methods available in the astronomical literature, especially for low signal-to-noise ratios.

Abstract Copyright:

Journal keyword(s): methods: data analysis - stars: variables: general - stars: planetary systems - occultations

Simbad objects: 3

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Number of rows : 3

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20   5.78 4.09     ~ 3463 0
2 HD 209456 * 22 02 45.9727929826 +37 35 47.430656263   9.51 9.07     F5 2 0
3 V* V376 Peg EP* 22 03 10.7729598762 +18 53 03.548248479   8.21 7.63     F9V 968 1

    Equat.    Gal    SGal    Ecl

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2019.10.21-13:10:02

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