Parameters of recent transits of HAT-P-23b

F. G. Ramón-Fox, P. V. Sada

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Four transits of the exoplanet HAT-P-23b were recently observed with the 0.36 m telescope at the Universidad de Monterrey Observatory. The four light curves were successfully combined to obtain a resulting one with reduced scat- tering per bin. This curve was modeled using a Monte Carlo method to obtain the essential parameters that characterize the system. Assuming orbital param- eters such as eccentricity e and longitude of periastron ω from the discovery pa- per, we found values of Rp/R* = 0.1105+0.0015 -0.0013 for the planet-to-star radius ratio, a/R* = 4.23+0.06 -0.12 for the scaled semimajor axis, and an orbital inclination of the system of i = 87.9°+1.5 -2.2. We also derive an improved orbital period of 1.2128868 ± 0.0000004 days (To = 2, 454, 852.26542 ± 0.00018 BJD TDB) for the system. © Copyright 2013: Instituto de Astronomía, Universidad Nacional Autónoma de México.
Original languageEnglish
Pages (from-to)71-77
Number of pages7
JournalRevista Mexicana de Astronomia y Astrofisica
Publication statusPublished - 2 Apr 2013

Fingerprint

transit
orbitals
eccentricity
planet
observatory
scattering
extrasolar planets
longitude
light curve
inclination
Monte Carlo method
planets
observatories
telescopes
stars
radii
curves
parameter
method

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

@article{f487b9ad25ef421bad01c7421c0b6043,
title = "Parameters of recent transits of HAT-P-23b",
abstract = "Four transits of the exoplanet HAT-P-23b were recently observed with the 0.36 m telescope at the Universidad de Monterrey Observatory. The four light curves were successfully combined to obtain a resulting one with reduced scat- tering per bin. This curve was modeled using a Monte Carlo method to obtain the essential parameters that characterize the system. Assuming orbital param- eters such as eccentricity e and longitude of periastron ω from the discovery pa- per, we found values of Rp/R* = 0.1105+0.0015 -0.0013 for the planet-to-star radius ratio, a/R* = 4.23+0.06 -0.12 for the scaled semimajor axis, and an orbital inclination of the system of i = 87.9°+1.5 -2.2. We also derive an improved orbital period of 1.2128868 ± 0.0000004 days (To = 2, 454, 852.26542 ± 0.00018 BJD TDB) for the system. {\circledC} Copyright 2013: Instituto de Astronom{\'i}a, Universidad Nacional Aut{\'o}noma de M{\'e}xico.",
author = "Ram{\'o}n-Fox, {F. G.} and Sada, {P. V.}",
year = "2013",
month = "4",
day = "2",
language = "English",
pages = "71--77",
journal = "Revista Mexicana de Astronomia y Astrofisica",
issn = "0185-1101",
publisher = "Universidad Nacional Autonoma de Mexico",

}

Parameters of recent transits of HAT-P-23b. / Ramón-Fox, F. G.; Sada, P. V.

In: Revista Mexicana de Astronomia y Astrofisica, 02.04.2013, p. 71-77.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Parameters of recent transits of HAT-P-23b

AU - Ramón-Fox, F. G.

AU - Sada, P. V.

PY - 2013/4/2

Y1 - 2013/4/2

N2 - Four transits of the exoplanet HAT-P-23b were recently observed with the 0.36 m telescope at the Universidad de Monterrey Observatory. The four light curves were successfully combined to obtain a resulting one with reduced scat- tering per bin. This curve was modeled using a Monte Carlo method to obtain the essential parameters that characterize the system. Assuming orbital param- eters such as eccentricity e and longitude of periastron ω from the discovery pa- per, we found values of Rp/R* = 0.1105+0.0015 -0.0013 for the planet-to-star radius ratio, a/R* = 4.23+0.06 -0.12 for the scaled semimajor axis, and an orbital inclination of the system of i = 87.9°+1.5 -2.2. We also derive an improved orbital period of 1.2128868 ± 0.0000004 days (To = 2, 454, 852.26542 ± 0.00018 BJD TDB) for the system. © Copyright 2013: Instituto de Astronomía, Universidad Nacional Autónoma de México.

AB - Four transits of the exoplanet HAT-P-23b were recently observed with the 0.36 m telescope at the Universidad de Monterrey Observatory. The four light curves were successfully combined to obtain a resulting one with reduced scat- tering per bin. This curve was modeled using a Monte Carlo method to obtain the essential parameters that characterize the system. Assuming orbital param- eters such as eccentricity e and longitude of periastron ω from the discovery pa- per, we found values of Rp/R* = 0.1105+0.0015 -0.0013 for the planet-to-star radius ratio, a/R* = 4.23+0.06 -0.12 for the scaled semimajor axis, and an orbital inclination of the system of i = 87.9°+1.5 -2.2. We also derive an improved orbital period of 1.2128868 ± 0.0000004 days (To = 2, 454, 852.26542 ± 0.00018 BJD TDB) for the system. © Copyright 2013: Instituto de Astronomía, Universidad Nacional Autónoma de México.

M3 - Article

SP - 71

EP - 77

JO - Revista Mexicana de Astronomia y Astrofisica

JF - Revista Mexicana de Astronomia y Astrofisica

SN - 0185-1101

ER -