High Redshift Supernova Search
Home Page of
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:
Lawrence Berkeley Laboratory 50-232
University of California
Berkeley, CA 94720
Phone: (510) 486-5203
Fax: (510) 486-5401
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.
[large version of a JPEG image]
Movie clip: "What We Can 'See' in a Supernova."
[Explanation of the video]
From January 9, 1998 Press Release, "Distant
Exploding Stars Foretell Fate of the Universe." Pictures from
the ground and from the Hubble Space Telescope:
[Picture Caption Text]
Articles about the project from the Berkeley Lab Research Review
Before-and-after picture of one of the high-redshift supernovae
discovered by the Supernova Cosmology Project.
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)
[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.
Figure 7: Confidence Region on Omega_Mass vs. Omega_Lambda Plane.
Figure 9: Age of the Universe Isochrones superposed on Omega_Mass
vs. Omega_Lambda Confidence Region.
Figure 10: Confidence Region on Omega_Mass vs. w Plane, for an additional
energy density characterized by an equation of state w = p/rho.
Stretch Corrected Hamuy Supernovae: This figured shows how the
stretch correction aligns both the lightcurve width and peak magnitude for
the nearby Hamuy supernovae.
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)
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).
Measurements of the Cosmological Paramters Omega and Lambda
from the First 7 Supernovae at z >= 0.35. (Perlmutter et al.
ApJ, in press).
"A 200 x 200 CCD Image Sensor Fabricated On High-Resistivity Silicon,"
S.E. Holland et al., IEDM Tech. Digest, 911-914 (1996)
The Type Ia Supernova Rate at z~0.4. (Pain et al.
ApJ 473:356, 1996).
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.
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).
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]
at z=0.458 ... (Perlmutter et al, Ap.J.Lett., 440:L41, 1995)
[Postscript of text AND figures]
Saul Perlmutter (firstname.lastname@example.org)