Browsing by Author "981007405059303936"

Now showing items 61-80 of 98

    • Search for unseen planets transit timing variations 
      Hoyer Miranda, Sergio David (Universidad de Chile, 2012)
      Observing the changes in the orbital period of transiting exoplanets produced by gravitational perturbations allows to detect unseen orbital companions in the system. With this technique,known asTransitTimingVariations(T ...
    • Searching for light echoes due to circumstellar matter in SNe la Spectra 
      Marino, Sebastián; González Gaitán, Santiago; Förster, Francisco; Folatelli, Gastón; Hamuy Wackenhut, Mario; Hsiao, Eric (The American Astronomical Society, 2015)
      We present an analytical model for light echoes (LEs) coming from circumstellar material (CSM) around Type Ia Supernovae (SNe Ia). Using this model we find two spectral signatures at 4100 angstrom and 6200 angstrom that ...
    • Secondary parameters of type Ia supernova light curves 
      Höflich, P.; Krisciunas, Kevin; Khokhlov, A. M.; Baron, E.; Folatelli, Gastón; Hamuy Wackenhut, Mario; Phillips, M. M.; Suntzeff, Nicholas B.; Wang, L. (American Astronomical Society, 2010-02-10)
      High-quality observations of B and V light curves obtained at Las Campanas Observatory for local Type Ia Supernovae (SNe Ia) show clear evidence that SNe Ia with the same brightness decline or stretch may have systematic ...
    • Sistemas de Absorción en Espectros Ópticos de Estallidos de Rayos Gamma 
      Tejos Salgado, Nicolás Andrés (Universidad de ChilePrograma Cybertesis, 2009)
    • SN 1991bg - A type IA supernova with a difference 
      Leibundgut, Bruno; Kirshner, Robert P.; Phillips, Mark M.; Wells, Lisa A.; Suntzeff, Nicholas B.; Hamuy Wackenhut, Mario; Schommer, R. A.; Walker, A. R.; Gonzalez, L.; Ugarte, P.; Williams, R. E.; Williger, G.; Gómez, Mercedes; Marzke, Ronald; Schmidt, Brian P.; Whitney, Barbara; Coldwell, Nelson; Peters, J.; Chaffee, F. H.; Foltz, Craig B.; Rehner, D.; Siciliano, L.; Barnes, T. G.; Cheng, K. P.; Hintzen, P. M. N.; Kim, Y. C.; Maza Sancho, José; Parker, J. Wm.; Porter, A. C.; Schmidtke, P. C.; Sonneborn, George (American Astronomical Society, 1993-01)
      We present 13 spectra and 31 photometric observations covering the first 150 days of SN 1991bg in NGC 4374 (M 84). Although SN 1991bg was a type Ia supernova displaying the characteristic Si II absorption at 6150 angstrom ...
    • SN 1992bc and SN 1992bo: Evidence for intrinsic differences in type IA supernova luminosities 
      Maza Sancho, José; Hamuy Wackenhut, Mario; Phillips, M. M.; Suntzeff, Nicholas B.; Avilés, R. (UNIV CHICAGO PRESS, 1994-04-01)
      Based on the two best-observed Type Ia supernovae found in the Calan/Tololo Supernova Search, in this Letter we present convincing evidence that Type la supernovae with a fast rate of decline in the B band are intrinsically ...
    • SN 1992K - a twin to the subluminous type ia SN 1991bg 
      Hamuy Wackenhut, Mario; Phillips, M. M.; Maza Sancho, José; Suntzeff, Nicholas B.; Della Valle, Massimo; Danzinger, J.; Antezana, Roberto; Wischnjewsky, M.; Avilés, Roberto; Schommer, Robert A.; Kim, Y. C.; Wells, Lisa A.; Ruiz González, María Teresa; Prosser, Charles F.; Krzeminski, W.; Baylin, Charles D.; Hartigan, Patrick; Hughes, Joanne (1994-12)
      We present spectroscopic and photometric data for SN 1992K, a Type Ia event found in the course of the Calan/Tololo supernova survey. These data show an impressive similarity with the spectra and light curves of the atypical ...
    • SN 2003bg: A BROAD-LINED TYPE IIb SUPERNOVA WITH HYDROGEN 
      Mazzali, Paolo; Deng, Jinsong; Hamuy Wackenhut, Mario; Nomoto, Ken’ichi (IOP PUBLISHING LTD, DIRAC HOUSE, TEMPLE BACK, 2009-10-01)
      Models for the spectra and the light curve (LC), in the photospheric as well as in the late nebular phase, are used to infer the properties of the very radio-bright, broad-lined type IIb supernova (SN) 2003bg. Consistent ...
    • Sn 2005bf: A possible transition event between type Ib/c supernovae and gamma-ray bursts 
      Folatelli, Gastón; Contreras, Carlos; Phillips, Mark M.; Woosley, S. E.; Blinnikov, Sergei; Morrell, Nidia; Suntzeff, Nicholas B.; Lee, Brian L.; Hamuy Wackenhut, Mario; González Tagle, Sergio; Krzeminski, Wojtek; Roth, Miguel; Li, Weidong; Filippenko, Alexei V.; Foley, Ryan J.; Freedman, Wendy L.; Madore, Barry F.; Persson, S. E.; Murphy, David; Boissier, Samuel; Galaz, Gaspar, 1967-; González, Luis; McCarthy, P. J.; McWilliam, Andrew; Pych, Wojtek (UNIV CHICAGO PRESS, 2006-04-20)
      We present u'g'r'i'BV photometry and optical spectroscopy of the Type Ib/Ic SN 2005bf covering the first similar to 100 days following discovery. The u'g'BV light curves displayed an unprecedented morphology among Type ...
    • SN 2009ib: a Type II-P supernova with an unusually long plateau 
      Takáts, K.; Pignata Libralato, Giuliano; Pumo, M. L.; Paillas, E.; Zampieri, L.; Elias-Rosa, N.; Benetti, S.; Bufano, Filomena; Cappellaro, E.; Ergon, M.; Fraser, M.; Hamuy Wackenhut, Mario; Inserra, C.; Kankare, E.; Smartt, S. J.; Stritzinger, M. D.; Van Dyk, S. D.; Haislip, Joshua B.; LaCluyze, A. P.; Moore, J. P.; Reichart, D. (Royal Astronomical Society, 2015)
      We present optical and near-infrared photometry and spectroscopy of SN 2009ib, a Type II-P supernova in NGC 1559. This object has moderate brightness, similar to those of the intermediate-luminosity SNe 2008in and 2009N. ...
    • SN 2009jf: a slow-evolving stripped-envelope core-collapse supernova 
      Valenti, S.; Fraser, M.; Benetti, S.; Pignata Libralato, Giuliano; Sollerman, J.; Inserra, C.; Cappellaro, E.; Pastorello, A.; Smartt, S. J.; Ergon, M.; Botticella, M.-T.; Brimacombe, J.; Bufano, F.; Crockett, M.; Eder, I.; Fugazza, D.; Haislip, Joshua B.; Hamuy Wackenhut, Mario; Harutyunyan, A.; Ivarsen, K. M.; Kankare, E.; Kotak, R.; LaCluyze, Aaron P.; Magill, L.; Mattila, S.; Maza Sancho, José; Mazzali, Paolo; Reichart, D. E.; Taubenberger, S.; Turatto, M.; Zampieri, L. (2011)
      We present an extensive set of photometric and spectroscopic data for SN 2009jf, a nearby Type Ib supernova (SN), spanning from∼20 d before B-band maximum to 1 yr after maximum. We show that SN 2009jf is a slowly evolving ...
    • SN 2011A: A Low-Luminosity Interacting Transient With A Double Plateau And Strong Sodium Absorption 
      De Jaeger, Thomas; Anderson, J. P.; Pignata Libralato, Giuliano; Hamuy Wackenhut, Mario; Kankare, E.; Stritzinger, M. D.; Benetti, S.; Bufano, Filomena; Elias-Rosa, Nancy; Folatelli, Gastón; Forster, Francisco; González Gaitán, Santiago; Gutiérrez, C. P.; Inserra, C.; Kotak, R.; Lira Teillery, Paulina; Morrell, N.; Taddia, F.; Tomasella, L. (IOP Publisihing, 2015)
      We present optical photometry and spectroscopy of the optical transient SN 2011A. Our data span 140 days after discovery including BVRI u'g'r'i'z' photometry and 11 epochs of optical spectroscopy. Originally classified as ...
    • SN 2012ec: mass of the progenitor from PESSTO follow-up of the photospheric phase 
      Barbarino, C.; Dall'Ora, M.; Botticella, M. T.; Della Valle, Massimo; Zampieri, L.; Maund, J.; Pumo, M.; Jerkstrand, A.; Benetti, S.; Elias Rosa, N.; Fraser, M.; Gal Yam, Avishay; Hamuy Wackenhut, Mario; Inserra, C.; Knapic, C.; LaCluyze, A.; Molinaro, M.; Ochner, P.; Pastorello, A.; Pignata Libralato, Giuliano; Reichart, D.; Ries, C.; Riffeser, A.; Schmidt, B.; Schmidt, M.; Smareglia, R.; Smartt, S.; Smith, K.; Sollerman, J.; Sullivan, M.; Tomasella, L.; Turatto, M.; Valenti, S.; Yaron, O.; Young, D. (Oxford Univ Press, 2015)
      We present the results of a photometric and spectroscopic monitoring campaign of SN 2012ec, which exploded in the spiral galaxy NGC 1084, during the photospheric phase. The photometric light curve exhibits a plateau with ...
    • SN 2014J at M82 – I. A middle-class Type Ia supernova by all spectroscopic metrics 
      Galbany, Lluis; Moreno Raya, M.; Ruiz Lapuente, P.; González Hernández, J.; Méndez, J.; Vallely, P.; Baron, E.; Domínguez, I.; Hamuy Wackenhut, Mario; López Sánchez, Ángel R.; Mollá, M.; Catalán, S.; Cooke, E.; Fariña, C.; Génova Santos, R.; Karjalainen, R.; Lietzen, H.; McCormac, J.; Riddick, F.; Rubiño Martín, J.; Skillen, I.; Tudor, V.; Vaduvescu, O. (Oxford University Press, 2016)
      We present the intensive spectroscopic follow up of the Type Ia supernova (SN Ia) 2014J in the starburst galaxy M82. Twenty-seven optical spectra have been acquired from 2014 January 22 to September 1 with the Isaac ...
    • SN 2016jhj at redshift 0.34: extending the Type II supernova Hubble diagram using the standard candle method 
      De Jaeger, Thomas; Galbany, Lluis; Filippenko, A. V.; González Gaitán, Santiago; Yasuda, N.; Maeda, K.; Tanaka, M.; Morokuma, T.; Moriya, T. J.; Tominaga, N.; Nomoto, K.; Komiyama, Y.; Anderson, J. P.; Brink, T. G.; Carlberg, R. G.; Folatelli, Gastón; Hamuy Wackenhut, Mario; Pignata Libralato, Giuliano; Zheng, W. (Oxford university press, 2017)
      Although Type Ia supernova cosmology has now reached a mature state, it is important to develop as many independent methods as possible to understand the true nature of dark energy. Recent studies have shown that Type II ...
    • El sol negro 
      Hamuy Wackenhut, Mario (Editorial Debate, 2019)
      Que catorce han sido los eclipses solares totales que los habitantes de nuestro país han podido presenciar en diferentes puntos del territorio desde la Independencia, y seis serán los que se podrán ver en lo que queda del ...
    • Spectral analysis of Type II Supernovae 
      Gutiérrez Avendaño, Claudia Patricia (Universidad de Chile, 2016)
      La idea principal de esta tesis es el análisis de los espectros ópticos de las supernovas de tipo II (SNs II) y sus correlaciones con los parámetros fotométricos. Este análisis se basa en la caracterización de la diversidad ...
    • Spectroscopy of type Ia supernovae by the Carnegie Supernova Project 
      Folatelli, Gastón; Morrell, Nidia; Phillips, Mark M.; Hsiao, Eric; Campillay, Abdo; Contreras, Carlos; Castellón, Sergio; Hamuy Wackenhut, Mario; Krzeminski, Wojtek; Roth, Miguel; Stritzinger, Maximilian; Burns, Christopher R.; Freedman, Wendy L.; Madore, Barry F.; Murphy, David; Persson, S. E.; Prieto, José L.; Suntzeff, Nicholas B.; Krisciunas, Kevin; Anderson, Joseph P.; Förster, Francisco; Maza Sancho, José; Pignata Libralato, Giuliano; Rojas, P. Andrea; Boldt, Luis; Salgado, Francisco; Wyatt, Pamela; Olivares E., Felipe; Gal Yam, Avishay; Sako, Masao (The American Astronomical Society, 2013)
      This is the first release of optical spectroscopic data of low-redshift Type Ia supernovae (SNe Ia) by the Carnegie Supernova Project including 604 previously unpublished spectra of 93 SNe Ia. The observations cover a ...
    • The Standardized Candle Method for Type II Plateau Supernovae 
      Olivares E., Felipe; Hamuy Wackenhut, Mario; Pignata Libralato, Giuliano; Maza Sancho, José; Bersten, Melina; Phillips, Mark M.; Suntzeff, Nicholas B.; Filippenko, Alexei V.; Morrel, Nidia I.; Kirshner, Robert P.; Matheson, Thomas (2010-04-15)
      In this paper we study the “standardized candle method” using a sample of 37 nearby (redshift z < 0.06) Type II plateau supernovae having BV RI photometry and optical spectroscopy. An analytic procedure is implemented ...
    • A study of the color diversity around maximum light in Type Ia supernovae 
      Cartier Ugarte, Regis; Förster, F.; Coppi, C.; Hamuy Wackenhut, Mario; Maeda, K.; Pignata Libralato, Giuliano; Folatelli, Gastón (2011)
      From a sample of 12 well-observed Type Ia supernovae, we find clear evidence of correlations between early phase (U − B), (V − R), and (V − I) colors and the velocity shifts of the [Fe II] λ7155 and [Ni II] λ7378 nebular ...