tipa -- 4/3/2009

Looking Into the Fireball: ROTSE-III and Swift Observations of Early GRB Afterglows

• Authors: E. S. Rykoff (UCSB), F. Aharonian (MPIK), C. W. Akerlof (UMich), M. C. B. Ashley (UNSW), S. D. Barthelmy (GSFC), H. A. Flewelling (UMich), N. Gehrels (GSFC), E. Gogus (Sabanci), T. Guver (Arizona), U. Kiziloglu (METU), H. A. Krimm (GSFC, USRA), T. A. McKay (UMich), M. Ozel (Cag), A. Phillips (UNSW), R. M. Quimby (Caltech), G. Rowell (Adelaide), W. Rujopakarn (Steward), B. E. Schaefer (LSU), D. A. Smith (Guilford), W. T. Vestrand (LANL), J. C. Wheeler (UTexas), J. Wren (LANL), F. Yuan (UMich), S. A. Yost (CSB/SJU)

H.E.S.S. upper limit on the very high energy gamma-ray emission from the globular cluster 47 Tucanae

• Authors: HESS collaboration: F. Aharonian, et al

Stellar and total baryon mass fractions in groups and clusters since redshift 1

• Authors: S.Giodini (1), D. Pierini (1), A. Finoguenov (1,2), G. W. Pratt (1), H. Boehringer (1), A. Leauthaud (7), L. Guzzo (3), H. Aussel (13), M. Bolzonella (18), P. Capak (4,14), M. Elvis (5), G. Hasinger (17), O. Ilbert (6), J. S.Kartaltepe (6), A. M. Koekemoer (16), S. J. Lilly (8), H. J. McCracken (9), M. Salvato (14), D. B. Sanders (6), N. Z. Scoville (4), S. Sasaki (10,11), V. Smolcic (14), Y. Taniguchi (12), D. Thompson (14,15), the COSMOS collaboration ((1) Max Planck Institut fuer Extraterrestrische Physik,(2) University of Maryland,(3) INAF-Osservatorio Astronomico di Brera, (4)Spitzer Science Center,(5) Harvard-Smithsonian Ctr. for Astrophysics,(6)Institute for Astronomy, University of Hawaii, (7) LBNL & Berkeley Center for Cosmological Physics, (8) ETH Zurich,(9) Institut d Astrophysique de Paris, (10) Tohoku University, Japan,(11) Ehime University,(12) Research Center for Space and Cosmic Evolution, Ehime University,(13) AIM Paris,(14) California Institute of Technology,(15)Large Binocular Telescope Observatory,(16) Space Telescope Science Institute,(17)Max-Planck-Institut fuer Plasmaphysik,(18) INAF - Bologna Astronomical Observatory)