### Abstract

Original language | English |
---|---|

Pages (from-to) | 71-77 |

Number of pages | 7 |

Journal | Revista Mexicana de Astronomia y Astrofisica |

Publication status | Published - 2 Apr 2013 |

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### All Science Journal Classification (ASJC) codes

- Astronomy and Astrophysics
- Space and Planetary Science

### Cite this

*Revista Mexicana de Astronomia y Astrofisica*, 71-77.

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*Revista Mexicana de Astronomia y Astrofisica*, pp. 71-77.

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

Research output: Contribution to journal › Article

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 -