Now showing items 1-20 of 22

    • The Carnegie Supernova Project: The low-redshift survey 

      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 ...
    • Characterizing The V-Band Light-Curves Of Hydrogen-Rich Type II Supernovae. 

      Anderson, Joseph P.; González Gaitán, Santiago; Hamuy Wackenhut, Mario; Gutiérrez, Claudia P.; Stritzinger, Maximilian D.; Olivares, Felipe; Phillips, Mark M.; Schulze, Steve; Antezana, Roberto; Bolt, Luis; Campillay, Abdo; Castellón, Sergio; Contreras, Carlos; De Jaeger, Thomas; Folatelli, Gastón; Förster, Francisco; Freedman, Wendy L.; González, Luis; Hsiao, Eric; Krzeminski, Wojtek; Krisciunas, Kevin; Maza Sancho, José; McCarthy, Patrick; Morrell, Nidia; Persson, Sven E.; Roth, Miguel; Salgado, Francisco; Suntzeff, Nicholas B.; Thomas Osip, Joanna (The American Astronomical Society, 2014-05)
      We present an analysis of the diversity of V-band light-curves of hydrogen-rich type II supernovae. Analyzing a sample of 116 supernovae, several magnitude measurements are defined, together with decline rates at ...
    • THE DISTANCES TO 5 TYPE-II SUPERNOVAE USING THE EXPANDING PHOTOSPHERE METHOD, AND THE VALUE OF HO 

      Schmidt, Brian P.; Kirshner, Robert P.; Eastman, Ronald G.; Phillips, Mark M.; Suntzeff, Nicholas B.; Hamuy Wackenhut, Mario; Maza Sancho, José; Avilés, Roberto (UNIV CHICAGO PRESS, 1994-09-01)
      We have used observations gathered at CTIO to measure distances by the expanding photosphere method (EPM) to five Type II supernovae. These supernovae lie at redshifts from cz = 1100 km s-1 to cz - 5500 km s-1, and increase ...
    • Do the photometric colors of Type II-P Supernovae allow accurate determination of host galaxy extinction?. 

      Krisciunas, Kevin; Hamuy Wackenhut, Mario; Suntzeff, Nicholas B.; Espinoza, Juan; Gonzalez, David; Gonzalez, Luis; Gonzalez, Sergio; Koviak, Kathleen; Krzeminski, Wojtek; Morrell, Nidia; Phillips, Mark M.; Roth, Miguel; Thomas - Osip, Joanna (IOP Publishing, 2009-01)
      We present infrared photometry of supernova (SN) 1999em, plus optical photometry, infrared photometry, and optical spectroscopy of SN 2003hn. Both objects were Type II-P SNe. The V − [RIJHK] color curves of these SNe ...
    • THE EXPANDING PHOTOSPHERE METHOD APPLIED TO SN-1992AM AT CZ=14600KM-S 

      Schmidt, Brian P.; Kirshner, Robert P.; Eastman, Ronald G.; Hamuy Wackenhut, Mario; Phillips, Mark M.; Suntzeff, Nicholas B.; Maza Sancho, José; Filippenko, Alexei V.; Ho, Luis C.; Matheson, Thomas; Grashuis, Randy; Aviles, Roberto; Kirkpatrick, J. Davy; Challis, Peter; Kuijken, Konrad; Zucker, Daniel; Bolte, Michael; Tyson, Neil D. (AMER INST PHYSICS, 1994-04)
      We present photometry and spectroscopy of SN 1992am for five months following its discovery by the Calan/CTIO SN search. These data show SN 1992am to be type II-P, displaying hydrogen in its spectrum and the typical shoulder ...
    • Fixing the U-band photometry of Type Ia supernovae 

      Krisciunas, Kevin; Bastola, Deepak; Espinoza, Juan; González, David; González, Luis; González Tagle, Sergio; Hamuy Wackenhut, Mario; Hsiao, Eric; Morrell, Nidia; Phillips, Mark M.; Suntzeff, Nicholas B. (IOP Publishing, 2013)
      We present previously unpublished photometry of supernovae 2003gs and 2003hv. Using spectroscopically derived corrections to the U-band photometry, we reconcile U-band light curves made from imagery with the Cerro Tololo 0.9 ...
    • Hα Spectral Diversity of Type II Supernovae: Correlations with Photometric Properties 

      Gutiérrez, Claudia P.; Anderson, Joseph P.; Hamuy Wackenhut, Mario; González Gaitán, Santiago; Folatelli, Gastón; Morrell, Nidia; Stritzinger, Maximilian D.; Phillips, Mark M.; MoroMartín, Amaya; Suntzeff, Nicholas B.; homas-Osip, Joanna T. (The American Astronomical Society, 2014-05-10)
      We present a spectroscopic analysis of the Hα profiles of hydrogen-rich Type II supernovae. A total of 52 Type II supernovae having well-sampled optical light curves and spectral sequences were analyzed. Concentrating on ...
    • Linking type Ia supernova progenitors and their resulting explosions 

      Foley, Ryan J.; Simon, Joshua D.; Burns, Christopher R.; Gal Yam, Avishay; Hamuy Wackenhut, Mario; Kirshner, Robert P.; Morrell, Nidia I.; Phillips, Mark M.; Shields, Gregory A.; Sternberg, Assaf (2012-06-20)
      Comparing the ejecta velocities at maximum brightness and narrow circumstellar/interstellar Na D absorption line profiles of a sample of 23 Type Ia supernovae (SNe Ia), we determine that the properties of SN Ia progenitor ...
    • The luminous Type Ic supernova 1992ar at z=0.145 

      Clocchiatti, Alejandro; Phillips, Mark M.; Suntzeff, Nicholas B.; Della Valle, Massimo; Cappellaro, Enrico; Turatto, Massimo; Hamuy Wackenhut, Mario; Avilés, Roberto; Navarrete, Mauricio; Smith, Chris; Rubenstein, Eric P.; Covarrubias, Ricardo; Stetson, Peter B.; Maza Sancho, José; Riess, Adam G.; Zanin, Caterina (2000-02-01)
      We present spectroscopic and photometric observations of SN 1992ar, the most distant supernova (SN) in the Cala n/Tololo Survey. We compare its spectrum with those of nearby Type Ia and Ic SNe and conclude that the ...
    • Optical and infrared photometry of the nearby Type Ia supernovae 1999ee, 2000bh, 2000ca, and 2001ba 

      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 ...
    • Optical and Infrared Photometry of the Type Ia Supernovae 1991T, 1991bg, 1999ek, 2001bt, 2001cn, 2001cz, and 2002bo 

      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, ...
    • Persistent Cii Absorption In the Normal TYPE Ia Supernova 2002fk∗ 

      Cartier Ugarte, Regis; Hamuy Wackenhut, Mario; Pignata Libralato, Giuliano; Förster, Francisco; Zelaya, Paula; Folatelli, Gastón; Phillips, Mark M.; Morrell, Nidia; Krisciunas, Kevin; Suntzeff, Nicholas B.; Clocchiatti, Alejandro; Coppi, Paolo; Contreras, Carlos; Roth, Miguel; Koviak, Kathleen; Maza Sancho, José; González, Luis; González, Sergio; Huerta, Leonor (The American Astronomical Society, 2014-07-01)
      We present well-sampled UBVRIJHK photometry of SN 2002fk starting 12 days before maximum light through 122 days after peak brightness, along with a series of 15 optical spectra from −4 to +95 days since maximum. ...
    • 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 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 ...
    • 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 ...
    • Supernova 2010as: the lowest-velocity member of a family of flat-velocity type IIb supernovae 

      Folatelli, Gastón; Bersten, Melina C.; Kuncarayakti, Hanindyo; Olivares Estay, Felipe; Anderson, Joseph P.; Holmbo, Simon; Maeda, Keiichi; Morrell, Nidia; Nomoto, Ken’ichi; Pignata Libralato, Giuliano; Stritzinger, Maximilian; Contreras, Carlos; Forster, Francisco; Hamuy Wackenhut, Mario; Phillips, Mark M.; Prieto, José Luis; Valenti, Stefano; Afonso, Paulo; Altenmuller, Konrad; Elliott, Jonny; Greiner, Jochen; Updike, Adria; Haislip, Joshua B.; LaCluyze, Aaron P.; Moore, Justin P.; Reichart, Daniel E. (The American Astronomical Society, 2014-09-01)
      We present extensive optical and near-infrared photometric and spectroscopic observations of the stripped-envelope supernova SN 2010as. Spectroscopic peculiarities such as initially weak helium features and low ...
    • The peculiar SN 2005hk: Do some type ia supernovae explode as deflagrations? 

      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 ...
    • The Type Ic SN 1990B in NGC 4568 

      Clocchiatti, Alejandro; Suntzeff, Nicholas B.; Phillips, Mark M.; Filippenko, Alexei V.; Turatto, Massimo; Benetti, Stefano; Cappellaro, Enrico; Avilés, Roberto; Covarrubias, Ricardo; DeGiogia Eastwood, K.; Dickinson, Mark.; Gouiffes, Christian; Guhathakurta, Puragra; Hamuy Wackenhut, Mario; Heathcote, Steve R.; Leibundgut, Bruno; Matheson, Thomas; Navarrete, Mauricio; Pérez, M.; Phillips, Andrew; Piemonte, Antonello; Ruiz González, María Teresa; Shields, Joseph C.; Smith, Chris; Spinrad, Hyron; Sturch, Conrad R.; Tyson, J. Anthony; Wells, Lisa (2001-06-01)
      We present a study of the Type Ic supernova (SN) 1990B that includes most of the observations obtained from around the world. The combined data set comprises 84 BV (RI)c photometric points spanning approximately 360 days ...
    • Type II supernova spectral diversity. I. Observations, sample characterization, and spectral line evolution 

      Gutiérrez, Claudia P.; Anderson, Joseph P.; Hamuy Wackenhut, Mario; Morrell, Nidia; González Gaitán, Santiago; Stritzinger, Maximilian D.; Phillips, Mark M.; Galbany, Lluis; Folatelli, Gastón; Dessart, L.; Contreras, Carlos; Della Valle, Massimo; Freedman, Wendy L.; Hsiao, Eric; Krisciunas, Kevin; Madore, Barry F.; Maza Sancho, José; Suntzeff, Nicholas B.; Prieto, José Luis; González, Luis; Cappellaro, Enrico; Navarrete, Mauricio; Pizzella, Alessandro; Ruiz González, María Teresa; Smith, R. Chris; Turatto, Massimo (IOP Publishing Ltd., 2017)
      We present 888 visual-wavelength spectra of 122 nearby type II supernovae (SNe II) obtained between 1986 and 2009, and ranging between 3 and 363 days post-explosion. In this first paper, we outline our observations and ...