tipa -- 11/18/2009

Unveiling the Origin of GRB 090709A: Lack of Periodicity in a Reddened Cosmological Long-Duration Gamma-Ray Burst

• Authors: S. B. Cenko, N. R. Butler, E. O. Ofek, D. A. Perley, A. N. Morgan, D. A. Frail, J. Gorosabel, J. S. Bloom, A. J. Castro-Tirado, J. Cepa, P. C. Chandra, A. de Ugarte Postigo, A. V. Filippenko, C. R. Klein, S. R. Kulkarni, A. A. Miller, P. E. Nugent, D. L. Starr

The Quasar Mass-Luminosity Plane II: High Mass Turnoff Evolution and a Synchronization Puzzle

• Authors: Charles L. Steinhardt, Martin Elvis

Limits on spin determination from disc spectral fitting in GX 339-4

• Authors: Mari Kolehmainen, Chris Done

Short-duration gamma-ray bursts from off-axis collapsars

• Authors: Davide Lazzati (NCSU), Brian J. Morsony (UW Madison), Mitchell C. Begelman (JILA)