2012A&A...540A..62O


Query : 2012A&A...540A..62O

2012A&A...540A..62O - Astronomy and Astrophysics, volume 540A, 62-62 (2012/4-1)

Transit-timing measurements with the model-independent barycenter method: application to the LHS 6343 system.

OSHAGH M., BOUE G., HAGHIGHIPOUR N., MONTALTO M., FIGUEIRA P. and SANTOS N.C.

Abstract (from CDS):

We present a model-independent technique for calculating the time of mid-transits. This technique, named ``barycenter method'', uses the light-curve's symmetry to determine the transit timing by calculating the transit light-curve barycenter. Unlike the other methods of calculating mid-transit timing, this technique does not depend on the parameters of the system and central star. We demonstrate the capabilities of the barycenter method by applying this technique to some known transiting systems including several Kepler confirmed planets.
Result. indicate that for complete and symmetric transit lightcurves, the barycenter method achieves the same precision as other techniques, but with fewer assumptions and much faster. Among the transiting systems studied with the barycenter method, we focus in particular on LHS 6343C, a brown dwarf that transits a member of an M+M binary system, LHS 6343AB. We present the results of our analysis, which can be used to set an upper limit on the period and mass of a possible second small perturber.

Abstract Copyright:

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

Simbad objects: 19

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Number of rows : 19
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 Kepler-8b Pl 18 45 09.1489711922 +42 27 03.891516422           ~ 92 1
2 Kepler-9c Pl 19 02 17.7544105084 +38 24 03.177247136           ~ 97 1
3 Kepler-9b Pl 19 02 17.7544105084 +38 24 03.177247136           ~ 103 1
4 Kepler-9 Er* 19 02 17.7544327200 +38 24 03.176851896     13.9 13.791   G2 184 1
5 Kepler-4b Pl 19 02 27.6981397378 +50 08 08.703759444           ~ 99 1
6 Kepler-1 Er* 19 07 14.0375836512 +49 18 59.091482160   11.85 11.25     G0V 167 2
7 Kepler-1b Pl 19 07 14.0379171930 +49 18 59.090895318           ~ 321 2
8 G 205-57B PM* 19 10 14.1368149030 +46 57 18.972735918           M3.6 7 0
9 G 205-57 EB* 19 10 14.284032 +46 57 24.10632   14.93 13.38 13.01   M1 56 0
10 G 205-57C BD? 19 10 14.284032 +46 57 24.10632           ~ 37 0
11 G 205-57A PM* 19 10 14.3140055555 +46 57 25.696847596           M2.5 11 0
12 Kepler-7b Pl 19 14 19.5623271934 +41 05 23.365460942           ~ 199 1
13 Kepler-19 Er* 19 21 40.9995019176 +37 51 06.437281140   12.88 12.04 11.888   ~ 81 1
14 BD+47 2846b Pl 19 28 59.3538131541 +47 58 10.216250846           ~ 360 1
15 BD+47 2846 Er* 19 28 59.3538826128 +47 58 10.217007804   10.97 10.48     F6V 295 2
16 Kepler-6b Pl 19 47 20.9379174935 +48 14 23.759506909           ~ 100 1
17 Kepler-11 Er* 19 48 27.6226218768 +41 54 32.903163504   14.635 13.838 13.742   G2V 338 1
18 BD+47 2936b Pl 19 50 50.2474562793 +48 04 51.097364378           ~ 397 1
19 Kepler-5b Pl 19 57 37.6884816070 +44 02 06.189528905           ~ 100 1

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2023.09.21-17:22:39

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