Desde el Observatorio Astronómico de la Universidad de Nariño estudiamos la curva de luz del exoplaneta TrES-3 para determinar algunos parámetros físicos de este cuerpo

Quijano-Vodniza, Alberto

Reyes, Karla P.

Rojas P., Mario

Universidad de Nariño (UDENAR)

TrES-3 ExoplanetSTUDY OFAlberto Quijano VodnizaMario Rojas PereiraKarla Reyesaquijanov@gmail.comPhone: 57-2-7360275Nariño, ColombiaUniversity Of Nariño ObservatoryThe first amateur observation of an exoplanet was made from the Nyrola Observatory in September 16, 2000. (Marko Moilanen, Jalo Ojanperä, Jouni Sorvari, Aki Id and Arto Oksanen). The jovian-type planet orbits a star that is 153 light years far away, and was called HD209458b in Pegasus. The equipment used  by this Observatory was a 16 inches MEADE LX200, a ST7E CCD SBIG camera with a V photometric filter and an f/6.3 focal distance reducer. At the University of Nariño Observatory we have  a similar  equipment.  The equipment we employed is: 14”LX200 GPS MEADE telescope and STL-1001 SBIG. The camera we used in our search is much more sensible than the one used by the Nyrola Observatory. From the Astronomical Observatory at the University of Nariño-COLOMBIA, we begun a systematic search for exoplanets. We have already confirmed the transit of the exoplanet TrES-3. This exoplanet was discovered by O’Donovan and other investigators, and turns around the GSC 03089-00929, with an orbital period of 1.30619 days (31.34856 hours) and inclination of 82.15 deg. The  TrES-3 is quite We developed high precision photometry on several pictures. Analyses carried out with the best data lead to the following results: length of the transit = (80.8 +/- 3) minutes, depth of the transit = (0.025 +/- 0.001) magnitudes, and orbital period = (31.23 +/- 0.12) hours. Also we estimated the exoplanet radio = 88227.547 km and the semi-major axis of the orbit = 0.0225 UA.ABSTRACTSUMMARY &CONCLUSIONSSecond Announcement2012 Sagan Exoplanet Summer Workshop   Working with Exoplanet Light Curves∆L  ~  (RP / RS) 2                  ∆L  =  reduction of the luminosity starRP   =  radius of the planet diskRS   =  radius of the star diskwhere: e =  eccentricity of the orbitr =  distance star-planet during transit i  = orbital inclinationq = RP  / RSb = ( r cos i ) / RSEquations)(1(222)1araTebqRt ST−−=+πinteresting because it has one of the smallest periods found on exoplanets. Jessie L. Christiansen, et.al. observed seven transits and they found that the duration of transit is 81.9+/-1.1 minutes and inclination of 81.99+/-0.30 deg. We have captured a lot of data to elaborate the lightcurves so we can estimate the physical parameters of the exoplanet. 

Study of Tres-3 Exoplanet

http://sired.udenar.edu.co/3704/1/Exoplanet_Vodniza_poster.pdf

Study of Tres-3 Exoplanet

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Universidad de Nariño (UDENAR)