TexasScholarWorks
    • Login
    • Submit
    View Item 
    •   Repository Home
    • UT Faculty/Researcher Works
    • UT Faculty/Researcher Works
    • View Item
    • Repository Home
    • UT Faculty/Researcher Works
    • UT Faculty/Researcher Works
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Analytical Light Curve Models Of Superluminous Supernovae: Chi(2)-Minimization Of Parameter Fits

    Thumbnail
    View/Open
    2013_08_superluminoussupernovae.pdf (873.1Kb)
    Date
    2013-08
    Author
    Chatzopoulos, Emmanouil
    Wheeler, J. Craig
    Vinko, Jozsef
    Horvath, Z. L.
    Nagy, A.
    Share
     Facebook
     Twitter
     LinkedIn
    Metadata
    Show full item record
    Abstract
    We present fits of generalized semi-analytic supernova (SN) light curve (LC) models for a variety of power inputs including Ni-56 and Co-56 radioactive decay, magnetar spin-down, and forward and reverse shock heating due to supernova ejecta-circumstellar matter (CSM) interaction. We apply our models to the observed LCs of the H-rich superluminous supernovae (SLSN-II) SN 2006gy, SN 2006tf, SN 2008am, SN 2008es, CSS100217, the H-poor SLSN-I SN 2005ap, SCP06F6, SN 2007bi, SN 2010gx, and SN 2010kd, as well as to the interacting SN 2008iy and PTF 09uj. Our goal is to determine the dominant mechanism that powers the LCs of these extraordinary events and the physical conditions involved in each case. We also present a comparison of our semi-analytical results with recent results from numerical radiation hydrodynamics calculations in the particular case of SN 2006gy in order to explore the strengths and weaknesses of our models. We find that CS shock heating produced by ejecta-CSM interaction provides a better fit to the LCs of most of the events we examine. We discuss the possibility that collision of supernova ejecta with hydrogen-deficient CSM accounts for some of the hydrogen-deficient SLSNe (SLSN-I) and may be a plausible explanation for the explosion mechanism of SN 2007bi, the pair-instability supernova candidate. We characterize and discuss issues of parameter degeneracy.
    Department
    Astronomy
    Subject
    circumstellar matter
    stars: evolution
    stars: mass-loss
    supernovae:
    general
    pair-instability supernovae
    core-collapse supernovae
    dense mass-loss
    shock breakout
    iin supernova
    luminous supernovae
    circumstellar
    interaction
    ultraluminous supernovae
    pan-starrs1 discovery
    optical
    transient
    astronomy & astrophysics
    URI
    http://hdl.handle.net/2152/35210
    Citation
    Chatzopoulos, E., J. Craig Wheeler, J. Vinko, Z. L. Horvath, and A. Nagy. "Analytical Light Curve Models of Superluminous Supernovae:? 2-minimization of Parameter Fits." The Astrophysical Journal, Vol. 773, No. 1 (Aug., 2013): 76.
    Collections
    • UT Faculty/Researcher Works

    Related items

    Showing items related by title, author, creator and subject.

    • Thumbnail

      Comprehensive Observations Of The Bright And Energetic Type Lax Sn 2012Z: Interpretation As A Chandrasekhar Mass White Dwarf Explosion 

      Stritzinger, M. D.; Valenti, S.; Hoeflich, P.; Baron, E.; Phillips, M. M.; Taddia, F.; Foley, R. J.; Hsiao, E. Y.; Jha, S. W.; McCully, C.; Pandya, V.; Simon, J. D.; Benetti, S.; Brown, P. J.; Burns, C. R.; Campillay, A.; Contreras, C.; Forster, F.; Holmbo, S.; Marion, G. H.; Morrell, N.; Pignata, G. (2015-01)
      We present ultraviolet through near-infrared (NIR) broadband photometry, and visual-wavelength and NIR spectroscopy of the Type lax supernova (SN) 2012Z. The data set consists of both early- and late-time observations, ...
    • Thumbnail

      The Transitional Stripped-Envelope Sn 2008Ax: Spectral Evolution And Evidence For Large Asphericity 

      Chornock, Ryan; Filippenko, Alexei V.; Li, W.; Marion, G. H.; Foley, Ryan J.; Modjaz, M.; Rafelski, M.; Becker, G. D.; de Vries, W. H.; Garnavich, Peter; Jorgenson, R. A.; Lynch, D. K.; Malec, A. L.; Moran, E. C.; Murphy, M. T.; Rudy, R. J.; Russell, R. W.; Silverman, Jeffrey M.; Steele, Thea N.; Stockton, A.; Wolfe, A. M.; Woodward, C. E. (2011-09)
      Supernova (SN) 2008ax in NGC 4490 was discovered within hours after shock breakout, presenting the rare opportunity to study a core-collapse SN beginning with the initial envelope-cooling phase immediately following shock ...
    • Thumbnail

      Ultraviolet Spectroscopy Of Type IIb Supernovae: Diversity And The Impact Of Circumstellar Material 

      Ben-Ami, Sagi; Hachinger, Stephan; Gal-Yam, Avishay; Mazzali, Paolo A.; Filippenko, Alexei V.; Horesh, Assaf; Matheson, Thomas; Modjaz, Maryam; Sauer, Daniel N.; Silverman, Jeffrey M.; Smith, Nathan; Yaron, Ofer (2015-04)
      We present new Hubble Space Telescope (HST) multi-epoch ultraviolet (UV) spectra of the bright Type IIb SN 2013df, and undertake a comprehensive analysis of the set of four SNe IIb for which HST UV spectra are available ...

    University of Texas at Austin Libraries
    • facebook
    • twitter
    • instagram
    • youtube
    • CONTACT US
    • MAPS & DIRECTIONS
    • JOB OPPORTUNITIES
    • UT Austin Home
    • Emergency Information
    • Site Policies
    • Web Accessibility Policy
    • Web Privacy Policy
    • Adobe Reader
    Subscribe to our NewsletterGive to the Libraries

    © The University of Texas at Austin

     

     

    Browse

    Entire RepositoryCommunities & CollectionsDate IssuedAuthorsTitlesSubjectsDepartmentsThis CollectionDate IssuedAuthorsTitlesSubjectsDepartments

    My Account

    Login

    Statistics

    View Usage Statistics

    Information

    About Contact Policies Getting Started Glossary Help FAQs

    University of Texas at Austin Libraries
    • facebook
    • twitter
    • instagram
    • youtube
    • CONTACT US
    • MAPS & DIRECTIONS
    • JOB OPPORTUNITIES
    • UT Austin Home
    • Emergency Information
    • Site Policies
    • Web Accessibility Policy
    • Web Privacy Policy
    • Adobe Reader
    Subscribe to our NewsletterGive to the Libraries

    © The University of Texas at Austin