Now showing items 1-20 of 20

    • Hamuy Wackenhut, Mario; Phillips, M. M.; Suntzeff, Nicholas B.; Maza Sancho, José; González, L. E.; Roth, Miguel; Krisciunas, Kevin; Morrell, Nidia; Green, E. M.; Persson, S. E.; McCarthy, P. J. (NATURE PUBLISHING GROUP, 2003-08-07)
      Stars that explode as supernovae come in two main classes. A type Ia supernova is recognized by the absence of hydrogen and the presence of elements such as silicon and sulphur in its spectrum; this class of supernova is ...
    • Hsiao, E. Y.; Hoeflich, P.; Ashall, C.; Lu, J.; Contreras, C.; Burns, C. R.; Phillips, M. M.; Galbany, L.; Anderson, J. P.; Baltay, C.; Baron, E.; Castellón, S.; Davis, S.; Freedman, Wendy L.; Gall, C.; González, C.; Graham, M. L.; Hamuy Wackenhut, Mario; Holoien, T. W.-S.; Karamehmetoglu, E.; Krisciunas, K.; Kumar, S.; Kuncarayakti, H.; Morrell, N.; Moriya, T. J.; Nugent, P. E.; Perlmutter, S.; Persson, S. E.; Piro, A. L.; Rabinowitz, D.; Roth, M.; Shahbandeh, M.; Shappee, B. J.; Stritzinger, M. D.; Suntzeff, N. B.; Taddia, F.; Uddin, S. A. (IOP Publishing, 2020)
      The Type Ia supernova (SN Ia) LSQ14fmg exhibits exaggerated properties that may help to reveal the origin of the "super-Chandrasekhar" (or 03fg-like) group. The optical spectrum is typical of a 03fg-like SN Ia, but the ...
    • Folatelli, Gastón; Phillips, M. M.; Burns, Christopher R.; Contreras, Carlos; Hamuy Wackenhut, Mario; Freedman, Wendy L.; Persson, S. E.; Stritzinger, Maximilian; Suntzeff, Nicholas B.; Krisciunas, Kevin; Boldt, Luis; González Tagle, Sergio; Krzeminski, Wojtek; Morrell, Nidia; Roth, Miguel; Salgado, Francisco; Madore, Barry F.; Murphy, David; Wyatt, Pamela; Li, Weidong; Filippenko, Alexei V.; Miller, Nicole (2010-01)
      An analysis of the first set of low-redshift (z < 0.08) Type Ia supernovae (SNe Ia) monitored by the Carnegie Supernova Project between 2004 and 2006 is presented. The data consist of well-sampled, high-precision ...
    • Contreras, Carlos; Hamuy Wackenhut, Mario; Phillips, M. M.; Folatelli, Gastón; Suntzeff, Nicholas B.; Persson, S. E.; Stritzinger, Maximilian; Boldt, Luis; González Tagle, Sergio; Krzeminski, Wojtek; Morrell, Nidia; Roth, Miguel; Salgado, Francisco; Maureira, María José; Burns, Christopher R.; Freedman, Wendy L.; Madore, Barry F.; Murphy, David; Wyatt, Pamela; Li, Weidong; Filippenko, Alexei V. (2009-10)
      The Carnegie Supernova Project is a five-year survey being carried out at the Las Cam- panas Observatory to obtain high-quality light curves of 100 low-redshift Type Ia supernovae in a well-defined photometric system. ...
    • Hamuy Wackenhut, Mario; Folatelli, Gastón; Morrell, Nidia; Phillips, Mark M.; Suntzeff, Nicholas B.; Persson, S. E.; Roth, Miguel; González Tagle, Sergio; Krzeminski, Wojtek; Contreras, Carlos; Freedman, Wendy L.; Murphy, D. C.; Madore, Barry F.; Wyatt, P.; Maza Sancho, José; Filippenko, Alexei V.; Li, Weidong; Pinto, P. A. (UNIV CHICAGO PRESS, 2006-01)
      Supernovae are essential to understanding the chemical evolution of the universe. Type Ia supernovae also provide the most powerful observational tool currently available for studying the expansion history of the universe ...
    • Morgan, Nicholas D.; Burley, Greg; Costa Hechenleitner, Edgardo; Maza Sancho, José; Persson, S. E.; Ruiz González, María Teresa; Schechter, Paul L.; Thompson, Ian; Winn, Joshua N. (2000-03)
      We report the discovery of the new double quasar CTQ 839. This B\18.3, radio-quiet quasar pair is separated by 2A.1 in BRI and H Ðlters, with magnitude di erences of *mB\2.5, *mR\*mI\1.9, and *mH\2.3. Spectral observations ...
    • Schwaizer, Francois; Burns, Christopher R.; Madore, Barry F.; Mager, VIiolet A.; Phillips, M. M.; Freedman, Wendy L.; Boldt, Luis; Contreras, Carlos; Folatelli, Gastón; González Tagle, Sergio; Hamuy Wackenhut, Mario; Krzeminski, Wojtek; Morrell, Nidia; Persson, S. E.; Roth, Miguel; Stritzinger, Maximilian D. (2008-10)
      Traditionally, the distance to NGC 4038/39 has been derived from the systemic recession velocity, yielding about 20 Mpc for H0 = 72 km s-1 Mpc-1. Recently, this widely adopted distance has been challenged based on ...
    • Krisciunas, Kevin; Phillips, Mark M.; Suntzeff, Nicholas B.; Persson, S. E.; Hamuy Wackenhut, Mario; Antezana, Roberto; Candia, Pablo; Clocchiatti, Alejandro; L. DePoy, Darren; Germany, Lisa M.; Gonzalez, Luis; Gonzalez, Sergio; Krzeminski, Wojtek; Maza Sancho, José; Nugent, Peter E.; Qiu, Yulei; Rest, Armin; Roth, Miguel; Stritzinger, Maximilian; Strolger, L. G.; Thompson, Ian; Williams, T. B.; Wischnjewsky, Marina (IOP Publishing, 2004-03)
      We present near-infrared photometry of the Type Ia supernova (SN) 1999ee; also, optical and infrared photometry of the Type Ia SNe 2000bh, 2000ca, and 2001ba. For SNe 1999ee and 2000bh, we present the first-ever SN ...
    • Krisciunas, Kevin; Suntzeff, Nicholas B.; Phillips, Mark M.; Candia, Pablo; Prieto, José Luis; Antezana, Roberto; Chassagne, Robin; Chen, Hsiao-Wen; Dickinson, Mark; Eisenhardt, Peter R.; Espinoza, Juan; Garnavich, Peter M.; González, David; Harrison, Thomas E.; Hamuy Wackenhut, Mario; Vladimir, D. Ivanov; Krzeminski, Wojtek; Kulesa, Craig; McCarthy, Patrick; Moro Martín, Amaya; Muena, César; Noriega-Crespo, Alberto; Persson, S. E.; Pinto, Philip A.; Roth, Miguel; Rubenstein, Eric P.; Stanford, S. Adam; Stringfellow, Guy S.; Zapata, Abner; Porter, Alain; Wischnjewsky, Marina (IOP Publishing, 2004-12)
      We present optical and/or infrared photometry of the Type Ia supernovae SN 1991T, SN 1991bg, SN 1999ek, SN 2001bt, SN 2001cn, SN 2001cz, and SN 2002bo. All but one of these supernovae have decline rate parameters, ...
    • 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 ...
    • 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 ...
    • Hsiao, Eric; Burns, C.R.; Contreras, C.; Höflich, P.; Sand, D.; Marion, G.H.; Phillips, M. M.; Stritzinger, M.; González Gaitán, Santiago; Mason, R. E.; Folatelli, Gastón; Parent, E.; Gall, C.; Amanullah, R.; Anupama, G. C.; Arcavi, I.; Banerjee, D. P. K.; Beletsky, Y.; Blanc Mendiberri, Guillermo; Bloom, J. S.; Brown, P. J.; Campillay, A.; Cao, Y.; Cia, A. de; Diamond, T.; Freedman, W. L.; González, C.; Goobar, A.; Holmbo, S.; Howell, D. A.; Johansson, J.; Kasliwal, M. M.; Kirshner, R. P.; Krisciunas, K.; Kulkarni, S. R.; Maguire, K.; Milne, P. A.; Morrell, N.; Nugent, P. E.; Ofek, E. O.; Osip, D.; Palunas, P.; Perley, D. A.; Persson, S. E.; Piro, A. L.; Rabus, M.; Roth, M.; Schiefelbein, J. M.; Srivastav, S.; Sullivan, M.; Suntzeff, Nicholas B.; Surace, J.; Wózniak, P. R.; Yaron, O. (ESO, 2015)
      We present near-infrared (NIR) time-series spectroscopy, as well as complementary ultraviolet (UV), optical, and NIR data, of the Type Ia supernova (SN Ia) iPTF13ebh, which was discovered within two days from the estimated ...
    • Hsiao, Eric; Burns, C. R.; Contreras, C.; Höflich, P.; Sand, D.; Marion, G. H.; Phillips, M. M.; Stritzinger, M.; González Gaitán, Francisco; Mason, R. E.; Folatelli, Gastón; Parent, E.; Gall, C.; Amanullah, R.; Anupama, G. C.; Arcavi, I.; Banerjee, D. P. K.; Beletsky, Y.; Blanc Mendiberri, Guillermo; Bloom, J. S.; Brown, P. J.; Campillay, A.; Cao, Y.; De Cia, A.; Diamond, T.; Freedman, W. L.; González, C.; Goobar, A.; Holmbo, S.; Howell, D. A.; Johansson, J.; Kasliwal, M. M.; Kirshner, R. P.; Krisciunas, K.; Kulkarni, S. R.; Maguire, K.; Milne, P. A.; Morrell, N.; Nugent, P. E.; Ofek, E. O.; Osip, D.; Palunas, P.; Perley, D. A.; Persson, S. E.; Piro, A. L.; Rabus, M.; Roth, M.; Schiefelbein, J. M.; Srivastav, S.; Sullivan, M.; Suntzeff, Nicholas B.; Surace, J.; Woźniak, P. R.; Yaron, O. (EDP Sciencies, 2015-03-03)
      We present near-infrared (NIR) time-series spectroscopy, as well as complementary ultraviolet (UV), optical, and NIR data, of the Type Ia supernova (SN Ia) iPTF13ebh, which was discovered within two days from the estimated ...
    • Taddia, F.; Stritzinger, M. D.; Phillips, M. M.; Burns, C. R.; Heinrich Josties, E.; Morrell, N.; Sollerman, J.; Valenti, S.; Anderson, J. P.; Boldt, L.; Campillay, A.; Castellón, S.; Contreras, C.; Folatelli, Gastón; Freedman, W. L.; Hamuy Wackenhut, Mario; Krzeminski, W.; Leloudas, G.; Maeda, K.; Persson, S. E.; Roth, M.; Suntzeff, Nicholas B. (2012)
      Aims. We provide additional observational evidence that some Type Ia supernovae (SNe Ia) show signatures of circumstellar interaction (CSI) with hydrogen-rich material. Methods. Early phase optical and near-infrared (NIR) ...
    • Phillips, Mark M.; Li, Weidong; Frieman, Joshua A.; Blinnikov, Sergei; DePoy, Darren; Prietro, Jose L.; Milne, P.; Contreras, Carlos; Folatelli, Gastón; Morrell, Nidia; Hamuy Wackenhut, Mario; Suntzeff, Nicholas B.; Roth, Miguel; Krzeminski, Wojtek; Filippenko, Alexei V.; Freedman, Wendy L.; Chornock, Ryan; Jha, Saurabh; Madore, Barry F.; Persson, S. E.; González Tagle, Sergio; Burns, Christopher R.; Wyatt, Pamela; Murphy, David; Foley, Ryan J.; Ganeshalingam, Mohan; Serduke, Franklin J. D.; Krisciunas, Kevin; Bassett, Bruce; Becker, Andrew; Dilday, Ben; Eastman, J.; Garnavich, Peter M.; Holtzman, Jon; Kessler, Richard; Lampeitl, Hubert; Marriner, John; Frank, S.; Marshall, J. L.; Miknaitis, Gajus; Sako, Masao; Schneider, Donald P.; Van Der Heyden, Kurt; Yasuda, Naoki (2007)
      We present extensive u'g'r'i'BVRIYJHK(s) photometry and optical spectroscopy of the Type Ia supernova ( SN) 2005hk. These data reveal that SN 2005hk was nearly identical in its observed properties to SN 2002cx, which has ...
    • Taddia, F.; Stritzinger, M. D.; Sollerman, J.; Phillips, M. M.; Anderson, Joseph P.; Ergon, M.; Folatelli, Gastón; Fransson, C.; Freedman, W.; Hamuy Wackenhut, Mario; Morrell, N.; Pastorello, A.; Persson, S. E.; González, S. (EDP SCIENCES S A, 2012-01)
      Context. Supernova 1987A revealed that a blue supergiant (BSG) star can end its life as a core-collapse supernova (SN). SN 1987A and other similar objects exhibit properties that distinguish them from ordinary Type II ...
    • Foley, Ryan J.; Challis, P. J.; Chornock, R.; Ganeshalingam, M.; Li, W.; Marion, G. H.; Morrell, N. I.; Pignata Libralato, Giuliano; Stritzinger, M. D.; Silverman, J. M.; Wang, X.; Anderson, J. P.; Filippenko, A. V.; Freedman, W. L.; Hamuy Wackenhut, Mario; Jha, S. W.; Kirshner, R. P; McCully, C.; Persson, S. E.; Phillips, M. M.; Reichart, D. E.; Soderberg, A. M. (The American Astronomical Society, 2013)
      We describe observed properties of the Type Iax class of supernovae (SNe Iax), consisting of SNe observationally similar to its prototypical member, SN 2002cx. The class currently has 25 members, and we present ...
    • Dessart, L.; Gutiérrez, Claudia P.; Hamuy Wackenhut, Mario; Hillier, D. J.; Lanz, T.; Anderson, J. P.; Folatelli, Gastón; Freedman, W. L.; Ley, F.; Morrell, N.; Persson, S. E.; Phillips, M. M.; Stritzinger, M.; Suntzeff, Nicholas B. (2014-05-11)
      We explore a method for metallicity determinations based on quantitative spectroscopy of Type II-Plateau supernovae (SNe II-P). For consistency, we first evolve a set of 15 M main-sequence stars at 0.1, 0.4, 1, and 2 ...
    • Folatelli, Gastón; Phillips, M. M.; Morrell, Nidia; Tanaka, Masaomi; Maeda, Keiichi; Nomoto, Ken’ichi; Stritzinger, Maximilian; Burns, Christopher R.; Hamuy Wackenhut, Mario; Mazzali, Paolo; Boldt, Luis; Campillay, Abdo; Contreras, Carlos; González Tagle, Sergio; Roth, Miguel; Salgado, Francisco; Freedman, W. L.; Madore, Barry F.; Persson, S. E.; Suntzeff, Nicholas B. (2012-01-20)
      The presence of unburned material in the ejecta of normal Type Ia supernovae (SNe Ia) is investigated using early-time spectroscopy obtained by the Carnegie Supernova Project. The tell-tale signature of pristine material from ...
    • Taubenberger, S.; Hachinger, S.; Pignata Libralato, Giuliano; Mazzali, Paolo; Contreras, C.; Valenti, S.; Pastorello, A.; Elias Rosa, L.; Bärnbantner, O.; Barwig, H.; Benetti, S.; Dolci, M.; Fliri, J.; Folatelli, Gastón; Freedman, W. L.; González, S.; Hamuy Wackenhut, Mario; Krzeminski, W.; Morrell, N.; Navasardyan, H.; Persson, S. E.; Phillips, M. M.; Ries, C.; Roth, M.; Suntzeff, Nicholas B.; Turatto, M.; Hillebrandt, W. (2008)
      Optical observations of the Type Ia supernova (SN Ia) 2005bl in NGC 4070, obtained from −6 to +66 d with respect to the B-band maximum, are presented. The photometric evolution is characterized by rapidly declining light ...