tipa -- 4/6/2015

iPTF14yb: The First Discovery of a GRB Afterglow Independent of a High-Energy Trigger

• S. Bradley Cenko, Alex L. Urban, Daniel A. Perley, Assaf Horesh, Alessandra Corsi, Derek B. Fox, Yi Cao, Mansi M. Kasliwal, Amy Lien, Iair Arcavi, Joshua S. Bloom, Nat R. Butler, Antonino Cucchiara, Jose A. de Diego, Alexei V. Filippenko, Avishay Gal-Yam, Neil Gehrels, Leonid Georgiev, J. Jesus Gonzalez, John F. Graham, Jochen Greiner, D. Alexander Kann, Christopher R. Klein, Fabian Knust, S. R. Kulkarni, Alexander Kutyrev, Russ Laher, William H. Lee, Peter E. Nugent, J. Xavier Prochaska, Enrico Ramirez-Ruiz, Michael G. Richer, Adam Rubin, Yuji Urata, Karla Varela, Alan M. Watson, Przemek R. Wozniak

Direct collapse black hole formation via high-velocity collisions of protogalaxies

• Kohei Inayoshi, Eli Visbal, Kazumi Kashiyama

Detection of ultra-high energy cosmic ray showers with a single-pixel fluorescence telescope

• T. Fujii, M. Malacari, M. Bertaina, M. Casolino, B. Dawson, P. Horvath, M. Hrabovsky, J. Jiang, D. Mandat, A. Matalon, J. N. Matthews, P. Motloch, M. Palatka, M. Pech, P. Privitera, P. Schovanek, Y. Takizawa, S. B. Thomas, P. Travnicek, K. Yamazaki

The statistics of BAT-to-XRT flux ratio in GRB: Evidence for a characteristic value and its implications

• Demosthenes Kazanas, Judith L. Racusin, Joseph Sultana, Apostolos Mastichiadis

Search for the dark photon in $π^0$ decays

• CERN NA48/2 collaboration