tipa -- 12/21/2007

Swift and Chandra Detections of Supernova 2006jc: Evidence for Interaction of the Supernova Shock with a Circumstellar Shell

• Authors: S. Immler, M. Modjaz, W. Landsman, F. Bufano, P. J. Brown, P. Milne, L. Dessart, S. T. Holland, M. Koss, D. Pooley, R. P. Kirshner, A. V. Filippenko, N. Panagia, R. A. Chevalier, P. A. Mazzali, N. Gehrels, R. Petre, D. N. Burrows, J. A. Nousek, P. W. A. Roming, E. Pian, A. M. Soderberg, J. Greiner

The Spitzer Gould Belt Survey of Large Nearby Interstellar Clouds: Discovery of a Dense Embedded Cluster in the Serpens-Aquila Rift

• Authors: R. A. Gutermuth, T. L. Bourke, L. E. Allen, P. C. Myers, S. T. Megeath, B. C. Matthews, J. K. Jørgensen, J. Di Francesco, D. Ward-Thompson, T. L. Huard, T. Y. Brooke, M. M. Dunham, L. A. Cieza, P. M. Harvey, N. L. Chapman

Short-Hard Gamma-Ray Bursts in Young Host Galaxies: the Effect of Prompt Twins

• Authors: Krzysztof Belczynski, K.Z. Stanek, Chris L. Fryer

Heavy Cosmic Ray Nuclei from Extragalactic Sources above 'The Ankle'

• Authors: Tadeusz Wibig, Arnold W. Wolfendale

First results from the OSQAR photon regeneration experiment: No light shining through a wall

• Authors: OSQAR Collaboration: Pierre Pugnat (1), Lionel Duvillaret (2), Remy Jost (3), Guy Vitrant (2), Daniele Romanini (3), Andrzej Siemko (1), Rafik Ballou (4), Bernard Barbara (4), Michael Finger (5), Miroslav Finger (5), Jan Hosek (6), Miroslav Kral (1 and 6), Krzysztof A. Meissner (7), Miroslav Sulc (8), Josef Zicha (6) ((1) CERN, (2) MINATEC-INPG, (3) LSP-CNRS/UJF, (4) Institut Neel-CNRS/UJF, (5) Charles University, (6) Czech Technical University, (7) University of Warsaw, (8) Technical University of Liberec)