278 citations · 1.6k across the 25 of their papers we have counts for
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SN 2006gy: An extremely luminous supernova in the galaxy NGC 1260
E. O. Ofek, P. B. Cameron, M. M. Kasliwal +8
With an extinction-corrected V-band peak absolute magnitude of about -22, supernova (SN) 2006gy is probably the brightest SN ever observed. We report on multi-wavelength observatio…
SGRs in nearby galaxies: rate, luminosity function and fraction among short GRBs
Eran O. Ofek
It was suggested that some of the short-duration Gamma-Ray Bursts (GRB) are giant flares of Soft Gamma-ray Repeaters (SGR) in nearby galaxies. To test this hypothesis, I have const…
Geodesics and almost geodesic cycles in random regular graphs
Itai Benjamini, Carlos Hoppen, Eran ofek +2
A geodesic in a graph G is a shortest path between two vertices of G. For a specific function e(n) of n, we define an almost geodesic cycle C in G to be a cycle in which for every…
A Time Delay for the Largest Gravitationally Lensed Quasar: SDSS J1004+4112
J. Fohlmeister, C. S. Kochanek, E. E. Falco +12
We present 426 epochs of optical monitoring data spanning 1000 days from December 2003 to June 2006 for the gravitationally lensed quasar SDSS J1004+4112. The time delay between th…
Physics of the GRB 030328 afterglow and its environment
E. Maiorano, N. Masetti, E. Palazzi +30
We report on the photometric, spectroscopic and polarimetric, monitoring of the optical afterglow of Gamma-Ray Burst (GRB) 030328 detected by HETE-2. Photometry, collected at 7 dif…
Random 3CNF formulas elude the Lovasz theta function
Uriel Feige, Eran Ofek
Let be a 3CNF formula with n variables and m clauses. A simple nonconstructive argument shows that when m is sufficiently large compared to n, most 3CNF formulas are not satisf…