2001A&A...365..330D


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.24CEST13:25:42

2001A&A...365..330D - Astronomy and Astrophysics, volume 365, 330-340 (2001/1-2)

A Bayesian method for the detection of planetary transits.

DEFAYE C., DELEUIL M. and BARGE P.

Abstract (from CDS):

A new algorithm is proposed for the systematic analysis of light curves produced in high accuracy photometric experiments. This method allows us to identify and reconstruct in an automated fashion periodic signatures of extra-solar planetary transits. Our procedure is based on Bayesian methods used in statistical decision theory and offers the possibility to detect in the data periodic features of an unknown shape and period. Periodicities can be determined with a good accuracy, of the order of one hour. Shape reconstruction allows us to discriminate between transit events and possible artefacts. The method was validated on simulated light curves, assuming the data are produced by the instrument prepared for the future space mission, COROT. Moreover, stellar activity was accounted for using a sequence of the VIRGO-SOHO data. The probability to detect simulated transits is computed for various parameters: amplitude and number of the transits, apparent magnitude and variability level of the star. The algorithm can be fully automated, which is an essential attribute for efficient planetary search using the transit method.

Abstract Copyright:

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

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 - 2020
#notes
1 * 51 Peg b Pl 22 57 27.9804167474 +20 46 07.782240714           ~ 533 1

    Equat.    Gal    SGal    Ecl

C.D.S. - SIMBAD4 rel 1.7 - 2020.10.24CEST13:25:42

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations


Basic data :
* 51 Peg b -- Extra-solar Confirmed Planet
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types:
Pl? (), Pl (), * (*,HD)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) :
22 57 27.9804167474 +20 46 07.782240714 (Optical) [ 0.0919 0.1029 90 ] A 2018yCat.1345....0G
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) :
22 55 00.3802676841 +20 30 01.043887972 [ 0.0919 0.1029 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) :
090.0626330506709 -34.7272641837292 [ 0.0919 0.1029 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr :
207.363 62.094 [0.207 0.166 90] A 2018yCat.1345....0G
Syntax of parallax is : 'value quality [error] bibcode'
  • value : parallax value
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • [error] : mean error
  • bibcode : bibcode of the parallax reference
Parallaxes (mas):
64.6488 [0.1232] A 2018yCat.1345....0G
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notes:


Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

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* 51 Peg b HD 217014b NAME Dimidium

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References (533 between 1850 and 2020) (Total 533)
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2020.10.24-13:25:42

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