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Supernovae and Dark Energy

Supernovae and Dark Energy

Supernovae and Dark Energy. Brian P. Schmidt. The Research School of Astronomy and Astrophysics Mount Stromlo Observatory. The Standard Model. Robertson-Walker line element. Friedmann Equation. Homogenous & Isotropic Universe. a(t) is known as the scale factor and it gives the

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604 views • 45 slides
L. Perivolaropoulos http://leandros.physics.uoi.gr Department of Physics University of Ioannina

L. Perivolaropoulos http://leandros.physics.uoi.gr Department of Physics University of Ioannina

Open page. Repulsive Gravity and the Accelerating Universe. http://leandros.physics.uoi.gr/uoi06.htm. L. Perivolaropoulos http://leandros.physics.uoi.gr Department of Physics University of Ioannina. Main Points of Talk.

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589 views • 40 slides
Probing Modified Gravity with Supernovae and Galaxy Cluster Counts 2 for 1

Probing Modified Gravity with Supernovae and Galaxy Cluster Counts 2 for 1

Probing Modified Gravity with Supernovae and Galaxy Cluster Counts 2 for 1. O. Mena, J. Santiago and JW PRL, 96, 041103, 2006 J. Tang, J. Weller, A. Zablocki astro-ph/0609028. But in general:. New Gravitational Action. Einstein Gravity has not been tested on large scales (Hubble radius).

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526 views • 38 slides
THE GAMMA-RAY BURST HUBBLE DIAGRAM TO z=6.6

THE GAMMA-RAY BURST HUBBLE DIAGRAM TO z=6.6

? PLOT DISTANCE vs. REDSHIFT ? SHAPE OF PLOT ? EXPANSION HISTORY OF UNIVERSE ? SHAPE DEPENDS ON DARK ENERGY and HOW IT CHANGES. THE GAMMA-RAY BURST HUBBLE DIAGRAM TO z=6.6. Brad Schaefer Louisiana State University. HUBBLE DIAGRAMS. ? 1997: Perlmutter et al. 1997, ApJ, 483, 565

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439 views • 21 slides
Lepton asymmetry and neutrino hierarchy after Planck

Lepton asymmetry and neutrino hierarchy after Planck

Lepton asymmetry and neutrino hierarchy after Planck. Lucia A. Popa Institute of Space Sciences, Bucharest. 49 th Rencontres de Moriond Lucia A. Popa March 22-29, 2014.

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288 views • 19 slides

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