Browsing by Author "Zapata, Abner"
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- ItemA hot Saturn on an eccentric orbit around the giant star K2-132(2018) Jones Fernández, Matías Ignacio; Zapata, Abner; Brahm Scott, Rafael; Espinoza, N.; Jordán Colzani, Andrés Cristóbal; Rojas Henríquez, Felipe; Rabus, Markus; Drass, Holger; Soto, M.G.; Jenkins, J.S.; Vuckovic, M.
- ItemBeryllium detection in the very fast nova ASASSN-16kt (V407 Lupi)(2018) Izzo, L.; Vanzi, Leonardo; Zapata, Abner; Fernández Rosso, Daniela.; Molaro, P.; Bonifacio, P.; Della Valle, M.; Cano, Z.; Ugarte Postigo, A. de; Prieto, José Luis.; Thöne, Christina C.
- ItemHD 1397b : A Transiting Warm Giant Planet Orbiting A V = 7.8 mag Subgiant Star Discovered by TESS(2019) Brahm Scott, Rafael; Espinoza Pérez, Néstor; Jordán Colzani, Andrés Cristóbal; Henning, T.; Sarkis, P.; Jones Fernández, Matías Ignacio; Diaz, M.R.; Jenkins, J.S.; Vanzi, Leonardo; Zapata, Abner; Petrovich Balbontín, Cristóbal; Kossakowski, D.; Rabus, Markus; Rojas, F.; Torres, P.
- ItemHD 1397b: a transiting warm giant planet orbiting a V = 7.8 mag sub-giant star discovered by TESS(2018) Brahm Scott, Rafael; Zapata, Abner; Jordán Colzani, Andrés Cristóbal; Vanzi, Leonardo; Rabus, Markus; Torres, Pascal
- ItemK2-287 b : An Eccentric Warm Saturn Transiting a G-dwarf(2019) Jordán Colzani, Andrés Cristóbal; Brahm Scott, Rafael; Espinoza Pérez, Néstor; Cortes, Cristian; Diaz, Matías; Drass, Holger; Henning, Thomas; Jenkins, James S.; Jones Fernández, Matías Ignacio; Rabus, Markus; Rojas, Felipe; Sarkis, Paula; Vučković, Maja; Zapata, Abner; Soto, Maritza G.; Bakos, Gáspár Á.; Bayliss, Daniel; Bhatti, Waqas; Csubry, Zoltan; Lachaume, Regis; Moraga, Víctor; Pantoja, Blake; Osip, David; Shporer, Avi; Suc, Vincent; Vásquez Godoy, Sergio Osmán
- ItemK2-287b: an Eccentric Warm Saturn transiting a G-dwarf(2018) Jordán Colzani, Andrés Cristóbal; Zapata, Abner; Brahm Scott, Rafael; Espinoza, N.; Drass, Holger; Rabus, Markus; Rojas Henríquez, Felipe; Lachaume, Regis; Moraga Mejías, Víctor; Cortés, Cristián; Díaz, Matías
- ItemMASCARA-4 b/bRing-1b - A retrograde hot Jupiter around the bright A3V star HD 85628(2019) Brahm García, Enrique; Zapata, Abner; Jordán Colzani, Andrés Cristóbal; Vanzi, Leonardo; Dorval, P.; Talens, G.J.J.; Otten, G.P.P.L.; Henry, T.; Paredes, L.; Jao, W.C.; James, H.
- ItemOptical and Infrared Photometry of the Type Ia Supernovae 1991T, 1991bg, 1999ek, 2001bt, 2001cn, 2001cz, and 2002bo.(2004) Krisciunas, K.; Zapata, Abner; Suntzeff, Nicholas B.; Phillips, Mark M.; Candia, Pablo; Prieto, José Luis; Antezana, Roberto; Chassagne, Robin; Chen, Hsiao-Wen; Dickinson, Mark; Eisenhardt, Peter R.
- ItemPrecision stellar radial velocity measurements with FIDEOS at the ESO 1-m telescope of La Silla(2018) Vanzi, Leonardo; Zapata, Abner; Flores, M.; Brahm Scott, Rafael; Tala Pinto, M.; Rukdee, Surangkhana; Jones Fernández, Matías Ignacio; Ropert, S.; Shen, T.; Ramirez, S.; Suc, V.; Jordán, A.; Espinoza, N.
- ItemTARdYS: Design and prototype of an exoplanet hunter for TAO using a R6 Echelle grating(2019) Rukdee, Surangkhana; Vanzi, Leonardo; Schwab, C.; Flores Cabrales, Mauricio Fabián; Valenzuela Navarro, Álvaro Enrique Hernán; Pember, J.; Zapata, Abner; Motohara, K.; Yoshii, Y.; Tala Pinto, M.One limitation in characterizing exoplanet candidates is the availability of infrared, high-resolution spectrographs. An important factor in the scarcity of high precision IR spectrographs is the high cost of these instruments. We present a new optical design, which leads to a cost-effective solution. Our instrument is a high-resolution (R = 60,000) infrared spectrograph with a R6 Echelle grating and an image slicer. We compare the best possible performance of quasi-Littrow and White Pupil setups, and prefer the latter because it achieves higher image quality. The instrument is proposed for the University of Tokyo Atacama Observatory (TAO) 6.5 m telescope in Chile. The Tao Aiuc high Resolution (d) Y band Spectrograph (TARdYS) covers 0.843-1.117 mu m. To reduce the cost, we squeeze 42 spectral orders onto a 1K detector with a semi-cryogenic solution. We obtain excellent resolution even when taking realistic manufacturing and alignment tolerances as well as thermal variations into account. In this paper, we present early results from the prototype of this spectrograph at ambient temperature.
- ItemTOI-481 b and TOI-892 b : Two Long-period Hot Jupiters from the Transiting Exoplanet Survey Satellite(2020) Brahm, R.; Nielsen, L. D.; Wittenmyer, R. A.; Wang, S. H.; Rodríguez, J. E.; Espinoza, N.; Jones Fernández, Matías Ignacio; Rojas Thomas, Felipe Eduardo; Vanzi, Leonardo; Zapata, Abner; Jordán Colzani, Andrés Cristóbal; Henning, T.; Hobson, M.; Kossakowski, D.; Sarkis, P.; Schlecker, M.; Trifonov, T.; Shahaf, S.; Ricker, G.; Vanderspek, R.; Latham, D. W.; Seager, S.; Winn, J. N.; Jenkins, J. M.; Addison, B. C.; Bakos, G. A.; Bhatti, W.; Bayliss, D.; Berlind, P.; Bieryla, A.; Bouchy, F.; Bowler, B. P.; Briceno, C.; Brown, T. M.; Bryant, E. M.; Caldwell, D. A.; Charbonneau, D.; Collins, K. A.; Davis, A. B.; Esquerdo, G. A.; Fulton, B. J.; Guerrero, N. M.; Henze, C. E.; Hogan, A.; Horner, J; Huang, C. X.; Irwin, J.; Kane, S. R.; Kielkopf, J.; Mann, A. W.
- ItemTwo simple image slicers for high resolution spectroscopy(2017) Tala Pinto, Marcelo Said; Zapata, Abner; Vanzi, Leonardo; Ávila, Gerardo; Guirao, Carlos; Pecchioli, E.; Pieralli, F.