Y
Yashar Akrami
Researcher at École Normale Supérieure
Publications - 119
Citations - 23365
Yashar Akrami is an academic researcher from École Normale Supérieure. The author has contributed to research in topics: Cosmic microwave background & Planck. The author has an hindex of 49, co-authored 103 publications receiving 15346 citations. Previous affiliations of Yashar Akrami include University of Paris & Stockholm University.
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Journal ArticleDOI
Dark energy, $\alpha$-attractors, and large-scale structure surveys
TL;DR: In this paper, a large family of cosmological attractor models with dynamical dark energy, including the cosmologically constant $\Lambda$ as a free parameter, is studied.
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Direct constraints on minimal supersymmetry from Fermi-LAT observations of the dwarf galaxy Segue 1
TL;DR: In this article, the authors examined what constraints 9 months of Fermi-LAT gamma-ray observations of Segue 1 place upon the constrained minimal supersymmetric standard model (CMSSM), with the lightest neutralino as the dark matter particle.
Journal ArticleDOI
Power asymmetry in WMAP and Planck temperature sky maps as measured by a local variance estimator
Yashar Akrami,Yabebal Fantaye,Yabebal Fantaye,Arman Shafieloo,Arman Shafieloo,H. K. Eriksen,F. K. Hansen,A. J. Banday,A. J. Banday,Krzysztof M. Gorski,Krzysztof M. Gorski +10 more
TL;DR: In this paper, the authors revisited the question of hemispherical power asymmetry in the WMAP and Planck temperature sky maps by measuring the local variance over the sky and on disks of various sizes.
Journal ArticleDOI
Planck 2018 results. XII. Galactic astrophysics using polarized dust emission
Nabila Aghanim,Yashar Akrami,Yashar Akrami,Yashar Akrami,M. I. R. Alves,M. I. R. Alves,M. I. R. Alves,M. Ashdown,J. Aumont,Carlo Baccigalupi,Mario Ballardini,Mario Ballardini,A. J. Banday,A. J. Banday,R. B. Barreiro,N. Bartolo,N. Bartolo,S. Basak,K. Benabed,J.-P. Bernard,J.-P. Bernard,Marco Bersanelli,Marco Bersanelli,P. Bielewicz,P. Bielewicz,James J. Bock,J. R. Bond,Julian Borrill,Julian Borrill,François R. Bouchet,F. Boulanger,F. Boulanger,F. Boulanger,Andrea Bracco,Andrea Bracco,M. Bucher,M. Bucher,Carlo Burigana,Carlo Burigana,Erminia Calabrese,Jean-François Cardoso,Julien Carron,Ranga-Ram Chary,H. C. Chiang,H. C. Chiang,L. P. L. Colombo,C. Combet,B. P. Crill,F. Cuttaia,P. de Bernardis,G. de Zotti,Jacques Delabrouille,J.-M. Delouis,E. Di Valentino,Clive Dickinson,Jose M. Diego,O. Doré,Marian Douspis,A. Ducout,X. Dupac,George Efstathiou,Franz Elsner,Torsten A. Enßlin,H. K. Eriksen,Edith Falgarone,Yabebal Fantaye,Yabebal Fantaye,R. Fernandez-Cobos,Katia Ferrière,Katia Ferrière,Fabio Finelli,Francesco Forastieri,M. Frailis,A. A. Fraisse,E. Franceschi,Andrei V. Frolov,S. Galeotta,S. Galli,K. Ganga,Ricardo Genova-Santos,Ricardo Genova-Santos,Martina Gerbino,Tuhin Ghosh,Tuhin Ghosh,J. González-Nuevo,Krzysztof M. Gorski,Krzysztof M. Gorski,Serge Gratton,Gregory M. Green,Alessandro Gruppuso,Jon E. Gudmundsson,Jon E. Gudmundsson,Vincent Guillet,Vincent Guillet,Will Handley,F. K. Hansen,George Helou,D. Herranz,Eric Hivon,Zhiqi Huang,Andrew H. Jaffe,W. C. Jones,E. Keihänen,Reijo Keskitalo,K. Kiiveri,K. Kiiveri,J. Kim,Nicoletta Krachmalnicoff,Martin Kunz,Martin Kunz,Martin Kunz,Hannu Kurki-Suonio,Hannu Kurki-Suonio,Guilaine Lagache,J.-M. Lamarre,Anthony Lasenby,Massimiliano Lattanzi,Charles R. Lawrence,M. Le Jeune,François Levrier,Michele Liguori,Michele Liguori,P. B. Lilje,V. Lindholm,V. Lindholm,M. López-Caniego,Philip Lubin,Yin-Zhe Ma,Yin-Zhe Ma,J. F. Macías-Pérez,G. Maggio,Davide Maino,Davide Maino,N. Mandolesi,N. Mandolesi,A. Mangilli,A. Marcos-Caballero,M. Maris,Peter G. Martin,E. Martínez-González,Sabino Matarrese,Sabino Matarrese,N. Mauri,Jason D. McEwen,Alessandro Melchiorri,A. Mennella,A. Mennella,M. Migliaccio,M.-A. Miville-Deschênes,M.-A. Miville-Deschênes,Diego Molinari,Diego Molinari,A. Moneti,L. Montier,L. Montier,Gianluca Morgante,Adam Moss,Paolo Natoli,Paolo Natoli,L. Pagano,L. Pagano,D. Paoletti,Guillaume Patanchon,Francesca Perrotta,Valeria Pettorino,F. Piacentini,L. Polastri,G. Polenta,J.-L. Puget,J.-L. Puget,Jörg P. Rachen,M. Reinecke,Mathieu Remazeilles,A. Renzi,I. Ristorcelli,I. Ristorcelli,Graca Rocha,Graca Rocha,C. Rosset,G. Roudier,G. Roudier,G. Roudier,Jose Alberto Rubino-Martin,Jose Alberto Rubino-Martin,B. Ruiz-Granados,B. Ruiz-Granados,L. Salvati,M. Sandri,M. Savelainen,M. Savelainen,M. Savelainen,Douglas Scott,C. Sirignano,C. Sirignano,Rashid Sunyaev,Rashid Sunyaev,A.-S. Suur-Uski,A.-S. Suur-Uski,J. A. Tauber,D. Tavagnacco,D. Tavagnacco,M. Tenti,L. Toffolatti,L. Toffolatti,M. Tomasi,M. Tomasi,Tiziana Trombetti,J. Valiviita,J. Valiviita,F. Vansyngel,B. Van Tent,P. Vielva,Fabrizio Villa,Nicola Vittorio,Benjamin D. Wandelt,Benjamin D. Wandelt,Ingunn Kathrine Wehus,Andrea Zacchei,Andrea Zonca +218 more
TL;DR: In this article, a full-sky map of the polarization fraction p, angle ψ, and dispersion of angles S of Galactic dust thermal emission produced from the 2018 release of Planck data is presented.
Journal ArticleDOI
Linear growth of structure in massive bigravity
TL;DR: In this paper, the ghost-free theory of massive gravity with two dynamical metrics has been shown to produce viable cosmological expansion, where the late-time acceleration of the Universe is due to the finite range of the gravitational interaction rather than a nonzero cosmology constant.