Now showing items 1-9 of 9

    • Characteristic velocities of stripped-envelope core-collapse supernova cores 

      Maurer, J. I.; Mazzali, Paolo; Deng, J.; Filippenko, Alexei V.; Hamuy Wackenhut, Mario; Kirshner, Robert P.; Matheson, Thomas; Modjaz, Maryam; Pian, E.; Stritzinger, M.; Taubenberger, S.; Valenti, S. (2010)
      The velocity of the inner ejecta of stripped-envelope core-collapse supernovae (CC-SNe) is studied by means of an analysis of their nebular spectra. Stripped-envelope CC-SNe are the result of the explosion of bare cores ...
    • Constraining cosmic evolution of type Ia supernovae 

      Foley, Ryan J.; Filippenko, Alexei V.; Aguilera, C.; Becker, A. C.; Blondin, S.; Challis, P.; Clocchiatti, A.; Covarrubias, R.; Davis, Tamara M.; Garnavich, Peter M.; Jha, S.; Kirshner, Robert P.; Krisciunas, Kevin; Leibundgut, B.; Li, Weidong; Matheson, Thomas; Miceli, A.; Miknaitis, G.; Pignata Libralato, Giuliano; Rest, A.; Riess, A. G.; Schmidt, Brian P.; Smith, R. C.; Sollerman, J.; Spyromilio, J.; Stubbs, C. W.; Tonry, J. L.; Suntzeff, Nicholas B.; Wood-Vasey, W. M.; Zenteno, A. (UNIV CHICAGO PRESS, 2008-09-01)
      We present a large-scale effort of creating composite spectra of high-redshift SNe Ia and comparing them to low-redshift counterparts in an attempt to understand possible cosmic evolution of SNe Ia, which has major ...
    • 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 ...
    • Exploring the outer solar system with the ESSENCE Supernova Survey 

      Becker, A. C.; Arraki, K.; Kaib, N. A.; Wood-Vasey, W. M.; Aguilera, C.; Blackman, J. W.; Blondin, S.; Challis, P.; Clocchiatti, A.; Covarrubias, R.; Damke, G.; Davis, Tamara M.; Filippenko, Alexei V.; Foley, Ryan J.; Garg, A.; Garnavich, Peter M.; Hicken, M.; Jha, S.; Kirshner, Robert P.; Krisciunas, Kevin; Leibundgut, B.; Li, Weidong; Matheson, Thomas; Miceli, A.; Miknaitis, G.; Narayan, G.; Pignata Libralato, Giuliano; Prieto, J. L.; Rest, A.; Riess, A. G.; Salvo, M. E.; Schmidt, Brian P.; Smith, R. C.; Sollerman, J.; Spyromilio, J.; Stubbs, C. W.; Suntzeff, Nicholas B.; Tonry, J. L.; Zenteno, A. (UNIV CHICAGO PRESS, 2008-07-20)
      We report the discovery and orbital determination of 14 trans-Neptunian objects (TNOs) from the ESSENCE Supernova Survey difference imaging data set. Two additional objects discovered in a similar search of the SDSS-II ...
    • PHOTOMETRY AND SPECTROSCOPY OF GRB 030329 AND ITS ASSOCIATED SUPERNOVA 2003dh: THE FIRST TWO MONTHS 

      Matheson, Thomas; Garnavich, P. M.; Stanek, k. z.; Bersier, D.; Holland, S. T.; Krisciunas, K.; Caldwell, N.; Berlind, P.; Bloom, J. S.; Bolte, M.; Bonanos, A. Z.; Brown, M. J. I.; Brown, W. R.; Calkins, M. L.; Challis, P.; Chornock, R.; Echevarria, L.; Eisenstein, D. J.; Everett, M. E.; Filippenko, A. V.; Flint, K.; Foley, R. J.; Freedman, D. .L.; Hamuy Wackenhut, Mario; Harding, P.; Hathi, N. P.; Hicken, M.; Hoopes, C.; Impey, C.; Jannuzi, B. T.; Jansen, R. A.; Jha, S.; Kaluzny, J.; Kannappan, S.; Kirshner, R. P.; Latham, D. W.; Lee, J. C.; Leonard, D. .C.; Li, W.; Luhman, K. L.; Martini, P.; Mathis, H.; Maza Sancho, José; Megeath, S. T.; Miller, L. R.; Minniti, D.; Olszewski, E. W.; Papenkova, M.; Phillips, M. M.; Pindor, B.; Sasselov, D. D.; Schild, R.; Schweiker, H.; Spahr, T.; Thomas-Osip, J.; Thompson, I.; Weisz, D.; Windhorst, R.; Zaritsky, D. (IOP PUBLISHING LTD, TEMPLE CIRCUS, TEMPLE WAY,, 2003-12-10)
      We present extensive optical and infrared photometry of the afterglow of gamma-ray burst (GRB) 030329 and its associated supernova (SN) 2003dh over the first two months after detection (2003March 30–May 29 UT). Optical ...
    • Spectral identification of an ancient supernova using light echoes in the Large Magellanic Cloud 

      Rest, A.; Matheson, Thomas; Blondin, S.; Bergmann, M.; Welch, D. L.; Suntzeff, Nicholas B.; Smith, R. C.; Olsen, K.; Prieto, J. L.; Garg, A.; Challis, P.; Stubbs, C.; Hicken, M.; Modjaz, Maryam; Wood-Vasey, W. M.; Zenteno, A.; Damke, G.; Newman, A.; Huber, M.; Cook, K. H.; Nikolaev, S.; Becker, A. C.; Miceli, A.; Covarrubias, R.; Morelli, L.; Pignata Libralato, Giuliano; Clocchiatti, A.; Minniti, D.; Foley, Ryan J. (UNIV CHICAGO PRESS, 2008-06-20)
      We report the successful identification of the type of the supernova responsible for the supernova remnant SNR 0509-675 in the Large Magellanic Cloud (LMC) using Gemini spectra of surrounding light echoes. The ability ...
    • 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 ...
    • Time dilation in type Ia supernova spectra at high redshift 

      Blondin, S.; Davis, Tamara M.; Krisciunas, Kevin; Schmidt, Brian P.; Sollerman, J.; Wood-Vasey, W. M.; Becker, A. C.; Challis, P.; Clocchiatti, A.; Damke, G.; Filippenko, Alexei V.; Foley, Ryan J.; Garnavich, Peter M.; Jha, S. W.; Kirshner, Robert P.; Leibundgut, B.; Li, Weidong; Matheson, Thomas; Miknaitis, G.; Narayan, G.; Pignata Libralato, Giuliano; Rest, A.; Riess, A. G.; Silverman, J. M.; Smith, R. C.; Spyromilio, J.; Stritzinger, M.; Stubbs, C. W.; Suntzeff, Nicholas B.; Tonry, J. L.; Tucker, B. E.; Zenteno, A. (UNIV CHICAGO PRESS, 2008-08-01)
      We present multiepoch spectra of 13 high-redshift Type Ia supernovae (SNe Ia) drawn from the literature, the ESSENCE and SNLS projects, and our own separate dedicated program on the ESO Very Large Telescope. We use the ...
    • 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 ...