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Petrucci, R.; Jofré, E.; Melita, M.; Gómez, M.; Mauas, P. "Transit timing variation analysis in southern stars: The case of WASP-28" (2014) Monthly Notices of the Royal Astronomical Society. 446(2):1389-1398
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Abstract:

We present four new transit observations of the exoplanet WASP-28b observed between 2011 August and 2013 October. Employing another 11 transits available in the literature we compute new ephemeris and redetermine the physical parameters of the star and the exoplanet. Considering 3 yr of observations, we find no periodic transit timing variations (TTVs) or longterm variations of the inclination of the orbit, i, or the depth of the transit, k, that could be attributable to the presence of another planetary-mass body in the system. We also study the relations between i and k with different factors that characterize the light curves. The fits suggest a possible weak correlation between k with the red noise factor, β, and the photometric noise rate, PNR, and a weak anticorrelation between i and PNR, although more points are needed to confirm these trends. Finally, the kinematic study suggests that WASP-28 is a thin-disc star. © 2014 The Authors.

Registro:

Documento: Artículo
Título:Transit timing variation analysis in southern stars: The case of WASP-28
Autor:Petrucci, R.; Jofré, E.; Melita, M.; Gómez, M.; Mauas, P.
Filiación:Instituto de Astronomía y Física del Espacio (IAFE), CC.67 Suc. 28, Buenos Aires, 1428, Argentina
CONICET, Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina
Observatorio Astronómico de Córdoba, Córdoba, X5000BGR, Argentina
Palabras clave:Planetary systems; Stars: individual: WASP-28; Techniques: photometric
Año:2014
Volumen:446
Número:2
Página de inicio:1389
Página de fin:1398
DOI: http://dx.doi.org/10.1093/mnras/stu2152
Título revista:Monthly Notices of the Royal Astronomical Society
Título revista abreviado:Mon. Not. R. Astron. Soc.
ISSN:00358711
CODEN:MNRAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v446_n2_p1389_Petrucci

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Citas:

---------- APA ----------
Petrucci, R., Jofré, E., Melita, M., Gómez, M. & Mauas, P. (2014) . Transit timing variation analysis in southern stars: The case of WASP-28. Monthly Notices of the Royal Astronomical Society, 446(2), 1389-1398.
http://dx.doi.org/10.1093/mnras/stu2152
---------- CHICAGO ----------
Petrucci, R., Jofré, E., Melita, M., Gómez, M., Mauas, P. "Transit timing variation analysis in southern stars: The case of WASP-28" . Monthly Notices of the Royal Astronomical Society 446, no. 2 (2014) : 1389-1398.
http://dx.doi.org/10.1093/mnras/stu2152
---------- MLA ----------
Petrucci, R., Jofré, E., Melita, M., Gómez, M., Mauas, P. "Transit timing variation analysis in southern stars: The case of WASP-28" . Monthly Notices of the Royal Astronomical Society, vol. 446, no. 2, 2014, pp. 1389-1398.
http://dx.doi.org/10.1093/mnras/stu2152
---------- VANCOUVER ----------
Petrucci, R., Jofré, E., Melita, M., Gómez, M., Mauas, P. Transit timing variation analysis in southern stars: The case of WASP-28. Mon. Not. R. Astron. Soc. 2014;446(2):1389-1398.
http://dx.doi.org/10.1093/mnras/stu2152