High Redshift Supernova Search
Home Page of the
Supernova Cosmology Project

This is the Lawrence Berkeley National Laboratory's
World Wide Web server for the Supernova Cosmology Project.

This is a first version of this server and home page. Please let me know if there are problems with it. I am reachable at: 
Saul Perlmutter
Lawrence Berkeley Laboratory 50-232
University of California
Berkeley, CA  94720

Phone:  (510) 486-5203
Fax:    (510) 486-5401
Internet:  saul@lbl.gov

Nice Pictures, Explanations, Etc.

  • An explanation of the Supernova Cosmology Project and our current results is given in Berkeley Lab's December 17, 1998 Press Release: "Science Magazine's Breakthrough of the Year"
  • Click on the top left segment of this Poster from the January 1998 Meeting of the American Astronomical Society (i.e. the segment that looks like this: ), for an explanation of the technique developed by the Supernova Cosmology Project to find "batches" of newly-exploded very distant supernova, all at one time, all "on schedule."
  • Before-and-after pictures (and Hubble Space Telescope picture) of a high-redshift supernovae discovered by the Supernova Cosmology Project in March, 1998. [JPEG] [PDF] [Postscript] [large version of a JPEG image]
  • Movie clip: "What We Can 'See' in a Supernova." [Explanation of the video] [MPEG movie] [Quicktime movie]
  • From January 9, 1998 Press Release, "Distant Exploding Stars Foretell Fate of the Universe." Pictures from the ground and from the Hubble Space Telescope: [PDF] [JPEG] [GIF] [Picture Caption Text]
  • Articles about the project from the Berkeley Lab Research Review [Fall 97] [1998]
  • Before-and-after picture of one of the high-redshift supernovae discovered by the Supernova Cosmology Project. [Postscript] [Postscript, compressed] [PDF]
  • January 16, 1996 Press Release: Discovery of the Most Distant Supernovae

    • Papers, Proceedings, Etc.

  • Measurements of Omega and Lambda from 42 High-Redshift Supernovae (Perlmutter et al., LBNL-41801, 1998, Accepted for publication in the Astrophysical Journal, v. 516, no. 2) [Postscript preprint] [Color Figures for Transparencies] [Supplementary Materials: Numerical Tables]

    Color Figures for Transparencies, from Perlmutter et al, LBNL-41801, 1998, ApJ (accepted for publication, v. 516, no. 2).
    Click on figures to obtain Postscript files.
     
    Figure 1:  Hubble Diagram with 42 High-Redshift Supernovae   (Log Redshift scale).  [Postscript]    		  
    Figure 2:  Hubble Diagram with 42 High-Redshift Supernovae  (Linear Redshift scale), with magnitude residuals from best fit cosmology.  [Postscript] [GIF]    		  
    Figure 7:  Confidence Region on Omega_Mass vs. Omega_Lambda Plane. [Postscript]    		  
    Figure 9:  Age of the Universe Isochrones superposed on Omega_Mass vs. Omega_Lambda Confidence Region. [Postscript]    		  
    Figure 10: Confidence Region on Omega_Mass vs. w Plane, for an additional energy density characterized by an equation of state w = p/rho. [Postscript]


  • Stretch Corrected Hamuy Supernovae: This figured shows how the stretch correction aligns both the lightcurve width and peak magnitude for the nearby Hamuy supernovae. [GIF]


  • LBL Report LBL-42230: Presentation at the January 1998 Meeting of the American Astronomical Society, Washington, DC. (referenced in Perlmutter et al., B.A.A.S., v. 29, no. 5, p. 1351, 1997) [Poster to view on web] [Preprint in Postscript Format] [Preprint in PDF Format]
    Click on this image of the poster, to examine in detail.


  • Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications (Perlmutter et al., Nature, 1 January 1998) [Postscript] [PDF]

    • Click on this image to obtain Postscript file of Figure 1 from Nature paper, comparing high-redshift supernova spectrum to time series of low-redshift spectra:
  • Implications for the Hubble Constant from the First 7 Supernovae at z >= 0.35. (Kim et al. ApJ 476:L63, 1997). [Postscript]
  • Measurements of the Cosmological Paramters Omega and Lambda from the First 7 Supernovae at z >= 0.35. (Perlmutter et al. ApJ, in press). [Postscript]
  • "A 200 x 200 CCD Image Sensor Fabricated On High-Resistivity Silicon," S.E. Holland et al., IEDM Tech. Digest, 911-914 (1996) [Postscript]
  • The Type Ia Supernova Rate at z~0.4. (Pain et al. ApJ 473:356, 1996). [Postscript]
  • Type Ia Supernovae & Cosmic Acceleration,'' Aldering, G. (2000), AIP Conference Proceeding: Cosmic Explosions, ed. S. S. Holt & W. W. Zhang, Woodbury, New York: American Institute of Physics. [Postscript]

    • Four Papers by the Supernova Cosmology Project to appear in Thermonuclear Supernovae (NATO ASI), eds. R. Canal, P. Ruiz-LaPuente, and J. Isern:

  • Poster presented at the American Astronomical Society January 1996 Meeting in San Antonio, Texas.
  • A Generalized K-correction for Type Ia Supernovae:... (Kim, Goobar, & Perlmutter, PASP, 108:190, 1996). [Postscript]
  • Feasibility of measuring the cosmological constant Lambda and mass density Omega using Type Ia supernovae (Goobar & Perlmutter, Ap.J., 450:14, 1995). [Postscript of text AND figures] [TeX] [Figure 1] [Figure 2] [Figure 3] [Figure 4]
  • Supernova at z=0.458 ... (Perlmutter et al, Ap.J.Lett., 440:L41, 1995) [Postscript of text AND figures] [TeX] [Figure 1] [Figure 2] [Figure 3]

    • LBNL Supernova Cosmology Group

    Miscellaneous

    Saul Perlmutter (saul@lbl.gov)