TY - JOUR A1 - Bersier, David A1 - Fruchter, Andrew S. A1 - Strolger, Louis-Gregory A1 - Gorosabel, Javier A1 - Levan, Andrew A1 - Burud, Ingunn A1 - Rhoads, James E. A1 - Becker, Andrew C. A1 - Cassan, Andrew C. A1 - Chornock, Ryan A1 - Covino, Stefano A1 - De Jong, Roelof S. A1 - Dominis, Dijana A1 - Filippenko, Alexei V. A1 - Hjorth, Jens A1 - Holmberg, Johan A1 - Malesani, Daniele A1 - Mobasher, Bahram A1 - Olsen, Kurt A. G. A1 - Stefanon, Mauro A1 - Castro Cerón, José María C. A1 - Fynbo, Johan P. U. A1 - Holland, Stephen T. A1 - Kouveliotou, Chryssa A1 - Pedersen, Hans-Georg A1 - Tanvir, Nieal R. A1 - Woosley, S. E. T1 - Evidence for a supernova associated with the X-ray flash 020903 N2 - We present ground-based and Hubble Space Telescope optical observations of the X-ray flash ( XRF) 020903, covering 300 days. The afterglow showed a very rapid rise in the first day, followed by a relatively slow decay in the next few days. There was a clear bump in the light curve after similar to 25 days, accompanied by a drastic change in the spectral energy distribution. The light curve and the spectral energy distribution are naturally interpreted as describing the emergence and subsequent decay of a supernova ( SN), similar to SN 1998bw. At peak luminosity, the SN is estimated to be 0.8 +/- 0.1 mag fainter than SN 1998bw. This argues in favor of the existence of a SN associated with this XRF. A spectrum obtained 35 days after the burst shows emission lines from the host galaxy. We use this spectrum to put an upper limit on the oxygen abundance of the host at [O/H] <= 0.6 dex. We also discuss a possible trend between the softness of several bursts and the early behavior of the optical afterglow, in the sense that XRFs and X-ray-rich gamma- ray bursts ( GRBs) seem to have a plateau phase or even a rising light curve. This can be naturally explained in models in which XRFs are similar to GRBs but are seen off the jet axis. Y1 - 2006 UR - http://iopscience.iop.org/0004-637X/ U6 - https://doi.org/10.1086/502640 SN - 0004-637X ER - TY - JOUR A1 - Gross, David A1 - Liu, Yi-Kai A1 - Flammia, Steven T. A1 - Becker, Stephen A1 - Eisert, Jens T1 - Quantum state tomography via compressed sensing N2 - We establish methods for quantum state tomography based on compressed sensing. These methods are specialized for quantum states that are fairly pure, and they offer a significant performance improvement on large quantum systems. In particular, they are able to reconstruct an unknown density matrix of dimension d and rank r using O(rdlog(2)d) measurement settings, compared to standard methods that require d(2) settings. Our methods have several features that make them amenable to experimental implementation: they require only simple Pauli measurements, use fast convex optimization, are stable against noise, and can be applied to states that are only approximately low rank. The acquired data can be used to certify that the state is indeed close to pure, so no a priori assumptions are needed. Y1 - 2010 UR - http://prl.aps.org/ U6 - https://doi.org/10.1103/Physrevlett.105.150401 SN - 0031-9007 ER - TY - GEN A1 - Abramowski, Attila A1 - Aharonian, Felix A. A1 - Benkhali, Faical Ait A1 - Akhperjanian, A. G. A1 - Angüner, Ekrem Oǧuzhan A1 - Backes, Michael A1 - Balenderan, Shangkari A1 - Balzer, Arnim A1 - Barnacka, Anna A1 - Becherini, Yvonne A1 - Tjus, Julia Becker A1 - Berge, David A1 - Bernhard, Sabrina A1 - Bernlöhr, Konrad A1 - Birsin, E. A1 - Biteau, Jonathan A1 - Böttcher, Markus A1 - Boisson, Catherine A1 - Bolmont, J. A1 - Bordas, Pol A1 - Bregeon, Johan A1 - Brun, Francois A1 - Brun, Pierre A1 - Bryan, Mark A1 - Bulik, Tomasz A1 - Carrigan, Svenja A1 - Casanova, Sabrina A1 - Chadwick, Paula M. A1 - Chakraborty, Nachiketa A1 - Chalme-Calvet, R. A1 - Chaves, Ryan C. G. A1 - Chretien, M. A1 - Colafrancesco, Sergio A1 - Cologna, Gabriele A1 - Conrad, Jan A1 - Couturier, Claire A1 - Cui, Yudong A1 - Davids, Isak Delberth A1 - Degrange, Bernhard A1 - Deil, Christoph A1 - deWilt, P. A1 - Djannati-Ataï, A. A1 - Domainko, Wilfried A1 - Donath, Axel A1 - Dubus, G. A1 - Dutson, K. A1 - Dyks, J. A1 - Dyrda, M. A1 - Edwards, Tanya A1 - Egberts, Kathrin A1 - Eger, Peter A1 - Espigat, P. A1 - Farnier, C. A1 - Fegan, Stephen A1 - Feinstein, Fabrice A1 - Fernandes, Milton Virgilio A1 - Fernandez, Diane A1 - Fiasson, A. A1 - Fontaine, Gerard A1 - Förster, Andreas A1 - Fuessling, M. A1 - Gabici, S. A1 - Gajdus, M. A1 - Gallant, Yves A. A1 - Garrigoux, Tania A1 - Giavitto, G. A1 - Giebels, Berrie A1 - Glicenstein, Jean-Francois A1 - Gottschall, Daniel A1 - Grondin, M. -H. A1 - Grudzinska, M. A1 - Hadasch, Daniela A1 - Haeffner, S. A1 - Hahn, Joachim A1 - Harris, Jonathan A1 - Heinzelmann, Götz A1 - Henri, G. A1 - Hermann, German A1 - Hervet, O. A1 - Hillert, Andreas A1 - Hinton, James Anthony A1 - Hofmann, Werner A1 - Hofverberg, Petter A1 - Holler, Markus A1 - Horns, Dieter A1 - Ivascenko, Alex A1 - Jacholkowska, A. A1 - Jahn, C. A1 - Jamrozy, Marek A1 - Janiak, M. A1 - Jankowsky, F. A1 - Jung-Richardt, I. A1 - Kastendieck, Max Anton A1 - Katarzynski, K. A1 - Katz, U. A1 - Kaufmann, S. A1 - Khelifi, B. A1 - Kieffer, Michel A1 - Klepser, S. A1 - Klochkov, Dmitry A1 - Kluzniak, W. A1 - Kolitzus, David A1 - Komin, Nu A1 - Kosack, Karl A1 - Krakau, Steffen A1 - Krayzel, F. A1 - Krueger, Pat P. A1 - Laffon, H. A1 - Lamanna, G. A1 - Lefaucheur, J. A1 - Lefranc, Valentin A1 - Lemiere, A. A1 - Lemoine-Goumard, M. A1 - Lenain, J. -P. A1 - Lohse, Thomas A1 - Lopatin, A. A1 - Lu, Chia-Chun A1 - Marandon, Vincent A1 - Marcowith, Alexandre A1 - Marx, Ramin A1 - Maurin, G. A1 - Maxted, Nigel A1 - Mayer, Michael A1 - McComb, T. J. Lowry A1 - Mehault, J. A1 - Meintjes, P. J. A1 - Menzler, Ulf A1 - Meyer, M. A1 - Mitchell, Alison M. W. A1 - Moderski, R. A1 - Mohamed, M. A1 - Mora, K. A1 - Moulin, Emmanuel A1 - Murach, Thomas A1 - de Naurois, Mathieu A1 - Niemiec, J. A1 - Nolan, Sam J. A1 - Oakes, Louise A1 - Odaka, Hirokazu A1 - Ohm, S. A1 - Optiz, Björn A1 - Ostrowski, Michal A1 - Oya, I. A1 - Panter, Michael A1 - Parsons, R. Daniel A1 - Arribas, M. Paz A1 - Pekeur, Nikki W. A1 - Pelletier, G. A1 - Petrucci, P. -O. A1 - Peyaud, B. A1 - Pita, S. A1 - Poon, Helen A1 - Pühlhofer, Gerd A1 - Punch, M. A1 - Quirrenbach, A. A1 - Raab, S. A1 - Reichardt, I. A1 - Reimer, Anita A1 - Reimer, Olaf A1 - Renaud, Metz A1 - de los Reyes, Raquel A1 - Rieger, Frank A1 - Romoli, C. A1 - Rosier-Lees, S. A1 - Rowell, G. A1 - Rudak, B. A1 - Rulten, C. B. A1 - Sahakian, Vardan A1 - Salek, D. A1 - Sanchez, David M. A1 - Santangelo, Andrea A1 - Schlickeiser, Reinhard A1 - Schuessler, F. A1 - Schulz, A. A1 - Schwanke, Ullrich A1 - Schwarzburg, S. A1 - Schwemmer, S. A1 - Sol, H. A1 - Spanier, Felix A1 - Spengler, G. A1 - Spies, Franziska A1 - Stawarz, Lukasz A1 - Steenkamp, Riaan A1 - Stegmann, Christian A1 - Stinzing, F. A1 - Stycz, K. A1 - Sushch, Iurii A1 - Tavernet, J. -P. A1 - Tavernier, T. A1 - Taylor, A. M. A1 - Terrier, R. A1 - Tluczykont, Martin A1 - Trichard, C. A1 - Valerius, K. A1 - van Eldik, C. A1 - van Soelen, B. A1 - Vasileiadis, Georges A1 - Veh, J. A1 - Venter, Christo A1 - Viana, Aion A1 - Vincent, P. A1 - Vink, Jacco A1 - Völk, Heinrich J. A1 - Volpe, Francesca A1 - Vorster, Martine A1 - Vuillaume, T. A1 - Wagner, S. J. A1 - Wagner, P. A1 - Wagner, R. M. A1 - Ward, Martin A1 - Weidinger, Matthias A1 - Weitzel, Quirin A1 - White, R. A1 - Wierzcholska, A. A1 - Willmann, P. A1 - Woernlein, A. A1 - Wouters, D. A1 - Yang, Ruizhi A1 - Zabalza, Victor A1 - Zaborov, Dmitry A1 - Zacharias, M. A1 - Zdziarski, A. A. A1 - Zech, Alraune A1 - Zechlin, Hannes -S. T1 - H.E.S.S. detection of TeV emission from the interaction region between the supernova remnant G349.7+0.2 and a molecular cloud (vol 574, A100, 2015) T2 - Astronomy and astrophysics : an international weekly journal KW - gamma rays: general KW - ISM: supernova remnants KW - ISM: clouds KW - errata, addenda Y1 - 2015 U6 - https://doi.org/10.1051/0004-6361/201425070e SN - 1432-0746 VL - 580 PB - EDP Sciences CY - Les Ulis ER -