Institution
IFAE
Other•Barcelona, Spain•
About: IFAE is a other organization based out in Barcelona, Spain. It is known for research contribution in the topics: Large Hadron Collider & Galaxy. The organization has 664 authors who have published 1270 publications receiving 51097 citations. The organization is also known as: Instituto de Fisica de Altas Energias & IFAE.
Topics: Large Hadron Collider, Galaxy, Higgs boson, Redshift, MAGIC (telescope)
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the MAGIC telescopes were used to obtain a significant signal from the direction of the blazar 3C 66A, which is shown to play an essential role for the separation between 3C66A and the nearby radio galaxy 3c 66B. The data sample was taken in 2009 December and 2010 January, and comprises 2.3 hr of good quality data in stereoscopic mode.
Abstract: We report new observations of the intermediate-frequency peaked BL Lacertae object 3C 66A with the MAGIC telescopes. The data sample we use were taken in 2009 December and 2010 January, and comprises 2.3 hr of good quality data in stereoscopic mode. In this period, we find a significant signal from the direction of the blazar 3C 66A. The new MAGIC stereoscopic system is shown to play an essential role for the separation between 3C 66A and the nearby radio galaxy 3C 66B, which is at a distance of only 6′. The derived integral flux above 100 GeV is 8.3% of the Crab Nebula flux and the energy spectrum is reproduced by a power law of photon index 3.64 ± 0.39stat ± 0.25sys. Within errors, this is compatible with the one derived by VERITAS in 2009. From the spectra corrected for absorption by the extragalactic background light, we only find small differences between the four models that we applied, and constrain the redshift of the blazar to z < 0.68. © 2011. The American Astronomical Society.
42 citations
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University of Rochester1, Texas A&M University2, Universidade Federal do Rio Grande do Sul3, University of Pennsylvania4, University of Chicago5, Fermilab6, University of Wisconsin-Madison7, Lawrence Berkeley National Laboratory8, Carnegie Institution for Science9, Stanford University10, Autonomous University of Madrid11, Institut d'Astrophysique de Paris12, University College London13, SLAC National Accelerator Laboratory14, University of Illinois at Urbana–Champaign15, National Center for Supercomputing Applications16, Indian Institute of Technology, Hyderabad17, Santa Cruz Institute for Particle Physics18, Spanish National Research Council19, Ohio State University20, Smithsonian Institution21, Lowell Observatory22, Macquarie University23, University of Michigan24, Catalan Institution for Research and Advanced Studies25, IFAE26, Princeton University27, University of Southampton28, Brandeis University29, State University of Campinas30, Argonne National Laboratory31
TL;DR: In this article, the first search for RR Lyrae stars (RRLs) in four of the ultra-faint systems imaged by the DES using SOAR/Goodman and Blanco/DECam imagers was presented.
Abstract: This work presents the first search for RR Lyrae stars (RRLs) in four of the ultra-faint systems imaged by the Dark Energy Survey (DES) using SOAR/Goodman and Blanco/DECam imagers. We have detected two RRLs in the field of Grus I, none in Kim 2, one in Phoenix II, and four in Grus II. With the detection of these stars, we accurately determine the distance moduli for these ultra-faint dwarf satellite galaxies; μ0=20.51±0.10 mag (D⊙=127±6 kpc) for Grus I and μ0=20.01±0.10 mag (D⊙=100±5 kpc) for Phoenix II. These measurements are larger than previous estimations by Koposov et al. 2015 and Bechtol et al. 2015, implying larger physical sizes; 5% for Grus I and 33% for Phoenix II. For Grus II, out of the four RRLs detected, one is consistent with being a member of the galactic halo (D⊙=24±1 kpc, μ0=16.86±0.10 mag), another is at D⊙=55±2 kpc (μ0=18.71±0.10 mag), which we associate with Grus II, and the two remaining at D⊙=43±2 kpc (μ0=18.17±0.10 mag). Moreover, the appearance of a subtle red horizontal branch in the color-magnitude diagram of Grus II at the same brightness level of the latter two RRLs, which are at the same distance and in the same region, suggests that a more metal-rich system may be located in front of Grus II. The most plausible scenario is the association of these stars with the Chenab/Orphan Stream. Finally, we performed a comprehensive and updated analysis of the number of RRLs in dwarf galaxies. This allows us to predict that the method of finding new ultra-faint dwarf galaxies by using two or more clumped RRLs will work only for systems brighter than MV ∼ −6 mag.
42 citations
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TL;DR: A search for direct pair production of scalar partners of the top quark (top squarks or scalar third-generation up-type leptoquarks) in the all-hadronic t (t) over bar plus missing transverse momen was conducted in this paper.
Abstract: A search for direct pair production of scalar partners of the top quark (top squarks or scalar third-generation up-type leptoquarks) in the all-hadronic t (t) over bar plus missing transverse momen
42 citations
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TL;DR: In this article, the anomalous magnetic moment of electron (a e ) and muon (a μ ) was explained in terms of an Aligned 2-Higgs Doublet Model with right-handed neutrinos.
41 citations
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TL;DR: In this article, the electroweak production of a W boson in association with two jets at high dijet invariant mass was performed using root s = 7 and 8 TeV proton-proton collision data.
Abstract: Measurements of the electroweak production of a W boson in association with two jets at high dijet invariant mass are performed using root s = 7 and 8 TeV proton-proton collision data produced by t ...
41 citations
Authors
Showing all 672 results
Name | H-index | Papers | Citations |
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J. S. Lange | 160 | 2083 | 145919 |
Diego F. Torres | 137 | 948 | 72180 |
M. I. Martínez | 134 | 1251 | 79885 |
Jose Flix | 133 | 1257 | 90626 |
Matteo Cavalli-Sforza | 129 | 1273 | 89442 |
Ilya Korolkov | 128 | 884 | 75312 |
Martine Bosman | 128 | 942 | 73848 |
Maria Pilar Casado | 128 | 981 | 78550 |
Clement Helsens | 128 | 870 | 74899 |
Imma Riu | 128 | 954 | 73842 |
Sebastian Grinstein | 128 | 1222 | 79158 |
Remi Zaidan | 126 | 744 | 71647 |
Arely Cortes-Gonzalez | 124 | 774 | 68755 |
Trisha Farooque | 124 | 841 | 69620 |
Martin Tripiana | 124 | 716 | 69652 |