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
Planck 2018 results. IX. Constraints on primordial non-Gaussianity
Yashar Akrami,Frederico Arroja,M. Ashdown,J. Aumont,Carlo Baccigalupi,Mario Ballardini,Mario Ballardini,A. J. Banday,R. B. Barreiro,Nicola Bartolo,Nicola Bartolo,Soumen Basak,K. Benabed,J.-P. Bernard,J.-P. Bernard,Marco Bersanelli,P. Bielewicz,J. R. Bond,Julian Borrill,François R. Bouchet,M. Bucher,Carlo Burigana,Carlo Burigana,R. C. Butler,Erminia Calabrese,Jean-François Cardoso,B. Casaponsa,Anthony Challinor,H. C. Chiang,H. C. Chiang,L. P. L. Colombo,C. Combet,B. P. Crill,F. Cuttaia,P. de Bernardis,A. de Rosa,G. de Zotti,Jacques Delabrouille,J.-M. Delouis,E. Di Valentino,Jose M. Diego,O. Doré,M. Douspis,A. Ducout,X. Dupac,S. Dusini,George Efstathiou,F. Elsner,Torsten A. Enßlin,H. K. Eriksen,Yabebal Fantaye,Yabebal Fantaye,James R. Fergusson,R. Fernandez-Cobos,Fabio Finelli,M. Frailis,A. A. Fraisse,E. Franceschi,Andrei V. Frolov,S. Galeotta,S. Galli,K. Ganga,Ricardo Genova-Santos,Ricardo Genova-Santos,Martina Gerbino,J. González-Nuevo,Krzysztof M. Gorski,Serge Gratton,Alessandro Gruppuso,Jon E. Gudmundsson,Jon E. Gudmundsson,Jan Hamann,Will Handley,F. K. Hansen,D. Herranz,E. Hivon,Zhiqi Huang,Andrew H. Jaffe,W. C. Jones,Gabriel Jung,E. Keihänen,Reijo Keskitalo,K. Kiiveri,K. Kiiveri,J. B. Kim,Nicoletta Krachmalnicoff,Martin Kunz,Martin Kunz,Martin Kunz,Hannu Kurki-Suonio,Hannu Kurki-Suonio,J.-M. Lamarre,Anthony Lasenby,Massimiliano Lattanzi,Charles R. Lawrence,M. Le Jeune,François Levrier,Antony Lewis,Michele Liguori,Michele Liguori,P. B. Lilje,V. Lindholm,V. Lindholm,M. López-Caniego,Yin-Zhe Ma,Yin-Zhe Ma,J. F. Macías-Pérez,Gianmarco Maggio,Davide Maino,Davide Maino,N. Mandolesi,N. Mandolesi,A. Marcos-Caballero,Michele Maris,Peter G. Martin,E. Martínez-González,Sabino Matarrese,N. Mauri,Jason D. McEwen,P. D. Meerburg,Peter Meinhold,Alessandro Melchiorri,A. Mennella,A. Mennella,M. Migliaccio,M.-A. Miville-Deschênes,Diego Molinari,Diego Molinari,A. Moneti,L. Montier,Gianluca Morgante,Adam Moss,Moritz Münchmeyer,Paolo Natoli,Paolo Natoli,F. Oppizzi,L. Pagano,D. Paoletti,B. Partridge,G. Patanchon,Francesca Perrotta,V. Pettorino,F. Piacentini,G. Polenta,J.-L. Puget,Jörg P. Rachen,B. Racine,M. Reinecke,Mathieu Remazeilles,A. Renzi,Graca Rocha,Jose Alberto Rubino-Martin,Jose Alberto Rubino-Martin,B. Ruiz-Granados,B. Ruiz-Granados,L. Salvati,M. Savelainen,M. Savelainen,M. Savelainen,Douglas Scott,E. P. S. Shellard,Maresuke Shiraishi,Maresuke Shiraishi,Chiara Sirignano,Chiara Sirignano,G. Sirri,Kendrick M. Smith,Locke D. Spencer,Luca Stanco,R. A. Sunyaev,R. A. Sunyaev,A.-S. Suur-Uski,A.-S. Suur-Uski,J. A. Tauber,D. Tavagnacco,D. Tavagnacco,M. Tenti,L. Toffolatti,L. Toffolatti,M. Tomasi,Tiziana Trombetti,J. Valiviita,J. Valiviita,B. Van Tent,P. Vielva,Fabrizio Villa,Nicola Vittorio,Benjamin D. Wandelt,Ingunn Kathrine Wehus,Andrea Zacchei,Andrea Zonca +190 more
TL;DR: In this paper, the Planck full-mission cosmic microwave background (CMB) temperature and E-mode polarization maps were used to obtain constraints on primordial non-Gaussianity.
Journal ArticleDOI
Planck 2018 results. VIII. Gravitational lensing.
Nabila Aghanim,Yashar Akrami,M. Ashdown,J. Aumont,Carlo Baccigalupi,Mario Ballardini,A. J. Banday,R. B. Barreiro,Nicola Bartolo,Soumen Basak,K. Benabed,J.-P. Bernard,Marco Bersanelli,P. Bielewicz,J. J. Bock,J. R. Bond,Julian Borrill,François R. Bouchet,F. Boulanger,M. Bucher,Carlo Burigana,Erminia Calabrese,Jean-François Cardoso,Julien Carron,Anthony Challinor,H. C. Chiang,L. P. L. Colombo,C. Combet,B. P. Crill,F. Cuttaia,P. de Bernardis,G. de Zotti,Jacques Delabrouille,E. Di Valentino,Jose M. Diego,O. Doré,M. Douspis,A. Ducout,X. Dupac,George Efstathiou,F. Elsner,Torsten A. Enßlin,H. K. Eriksen,Yabebal Fantaye,R. Fernandez-Cobos,Francesco Forastieri,M. Frailis,Aurelien A. Fraisse,E. Franceschi,Andrei V. Frolov,S. Galeotta,Silvia Galli,K. Ganga,Ricardo Génova-Santos,Martina Gerbino,Tuhin Ghosh,J. González-Nuevo,Krzysztof M. Gorski,Steven Gratton,Alessandro Gruppuso,Jon E. Gudmundsson,Jan Hamann,Will Handley,F. K. Hansen,D. Herranz,E. Hivon,Zhiqi Huang,Andrew H. Jaffe,W. C. Jones,A. Karakci,E. Keihänen,Reijo Keskitalo,K. Kiiveri,J. B. Kim,Lloyd Knox,N. Krachmalnicoff,Martin Kunz,Hannu Kurki-Suonio,G. Lagache,J.-M. Lamarre,Anthony Lasenby,Massimiliano Lattanzi,Charles R. Lawrence,M. Le Jeune,François Levrier,Antony Lewis,Michele Liguori,P. B. Lilje,V. Lindholm,M. López-Caniego,Philip Lubin,Yin-Zhe Ma,J. F. Macías-Pérez,Gianmarco Maggio,Davide Maino,N. Mandolesi,Anna Mangilli,A. Marcos-Caballero,Michele Maris,Peter G. Martin,E. Martínez-González,Sabino Matarrese,N. Mauri,Jason D. McEwen,Alessandro Melchiorri,A. Mennella,M. Migliaccio,M.-A. Miville-Deschênes,D. Molinari,A. Moneti,L. Montier,Gianluca Morgante,A. Moss,Paolo Natoli,L. Pagano,D. Paoletti,B. Partridge,G. Patanchon,F. Perrotta,V. Pettorino,F. Piacentini,L. Polastri,G. Polenta,J.-L. Puget,Jörg P. Rachen,M. Reinecke,Mathieu Remazeilles,A. Renzi,Graca Rocha,C. Rosset,G. Roudier,Jose Alberto Rubino-Martin,B. Ruiz-Granados,L. Salvati,M. Sandri,M. Savelainen,Douglas Scott,Chiara Sirignano,R. A. Sunyaev,A.-S. Suur-Uski,J. A. Tauber,D. Tavagnacco,M. Tenti,L. Toffolatti,M. Tomasi,T. Trombetti,J. Valiviita,B. Van Tent,P. Vielva,Fabrizio Villa,Nicola Vittorio,B. D. Wandelt,I. K. Wehus,Martin White,Simon D. M. White,Andrea Zacchei,Andrea Zonca +156 more
TL;DR: In this paper, the authors presented an extensive set of tests of the robustness of the lensing-potential power spectrum, and constructed a minimum-variance estimator likelihood over lensing multipoles.
Journal ArticleDOI
Beyond ΛCDM: Problems, solutions, and the road ahead
Philip Bull,Yashar Akrami,Julian Adamek,Tessa Baker,Emilio Bellini,Jose Beltrán Jiménez,Eloisa Bentivegna,Stefano Camera,Sebastien Clesse,Jonathan H. Davis,Enea Di Dio,Jonas Enander,Alan Heavens,Lavinia Heisenberg,Bin Hu,Claudio Llinares,Roy Maartens,Edvard Mörtsell,Seshadri Nadathur,Johannes Noller,Roman Pasechnik,Marcel S. Pawlowski,Thiago S. Pereira,Miguel Quartin,A. Ricciardone,Signe Riemer-Sørensen,Massimiliano Rinaldi,Jeremy Sakstein,Ippocratis D. Saltas,Vincenzo Salzano,Ignacy Sawicki,Adam R. Solomon,Adam R. Solomon,Adam R. Solomon,Douglas Spolyar,Glenn D. Starkman,Daniele A. Steer,Ismael Tereno,L. Verde,Francisco Villaescusa-Navarro,Mikael von Strauss,Hans A. Winther +41 more
TL;DR: There is a persistent interest in extending cosmology beyond the standard model, ΛCDM, motivated by a range of apparently serious theoretical issues, involving such questions as the cosmological constant problem, the particle nature of dark matter, the validity of general relativity on large scales, the existence of anomalies in the CMB and on small scales, and the predictivity and testability of the inflationary paradigm as mentioned in this paper.
Journal ArticleDOI
Beyond $\Lambda$CDM: Problems, solutions, and the road ahead
Philip Bull,Yashar Akrami,Julian Adamek,Tessa Baker,Emilio Bellini,Jose Beltrán Jiménez,Eloisa Bentivegna,Stefano Camera,Sebastien Clesse,Jonathan H. Davis,Enea Di Dio,Jonas Enander,Alan Heavens,Lavinia Heisenberg,Bin Hu,Claudio Llinares,Roy Maartens,Edvard Mörtsell,Seshadri Nadathur,Johannes Noller,Roman Pasechnik,Marcel S. Pawlowski,Thiago S. Pereira,Miguel Quartin,Angelo Ricciardone,Signe Riemer-Sørensen,Massimiliano Rinaldi,Jeremy Sakstein,Ippocratis D. Saltas,Vincenzo Salzano,Ignacy Sawicki,Adam R. Solomon,Douglas Spolyar,Glenn D. Starkman,Daniele A. Steer,Ismael Tereno,Licia Verde,Francisco Villaescusa-Navarro,Mikael von Strauss,Hans A. Winther +39 more
TL;DR: There is a persistent interest in extending cosmology beyond the standard model, $\Lambda$CDM as discussed by the authors, motivated by a range of apparently serious theoretical issues, involving such questions as the cosmological constant problem, the particle nature of dark matter, the validity of general relativity on large scales, the existence of anomalies in the CMB and on small scales, and the predictivity and testability of the inflationary paradigm.
Journal ArticleDOI
Planck 2018 results - VI. Cosmological parameters (Corrigendum)
Nabila Aghanim,Yashar Akrami,Yashar Akrami,Yashar Akrami,M. Ashdown,Jonathan Aumont,Carlo Baccigalupi,Mario Ballardini,Mario Ballardini,A. J. Banday,A. J. Banday,R. B. Barreiro,Nicola Bartolo,Nicola Bartolo,Soumen Basak,Richard A. Battye,Karim Benabed,J.-P. Bernard,J.-P. Bernard,Marco Bersanelli,Marco Bersanelli,P. Bielewicz,J. J. Bock,J. R. Bond,Julian Borrill,Julian Borrill,F. R. Bouchet,F. Boulanger,F. Boulanger,F. Boulanger,M. Bucher,M. Bucher,Carlo Burigana,Carlo Burigana,R. C. Butler,Erminia Calabrese,Jean-François Cardoso,Julien Carron,Anthony Challinor,H. C. Chiang,H. C. Chiang,Jens Chluba,L. P. L. Colombo,C. Combet,D. Contreras,B. P. Crill,F. Cuttaia,P. de Bernardis,G. de Zotti,Jacques Delabrouille,J.-M. Delouis,E. Di Valentino,Jose M. Diego,O. Doré,Marian Douspis,A. Ducout,X. Dupac,S. Dusini,George Efstathiou,Franz Elsner,Torsten A. Enßlin,H. K. Eriksen,Yabebal Fantaye,Yabebal Fantaye,Marzieh Farhang,James R. Fergusson,R. Fernandez-Cobos,Fabio Finelli,Francesco Forastieri,M. Frailis,Aurelien A. Fraisse,E. Franceschi,Andrei V. Frolov,S. Galeotta,S. Galli,Ken Ganga,Ricardo Genova-Santos,Ricardo Genova-Santos,Martina Gerbino,Tuhin Ghosh,Tuhin Ghosh,J. González-Nuevo,K. M. Górski,K. M. Górski,Steven Gratton,Alessandro Gruppuso,Jon E. Gudmundsson,Jon E. Gudmundsson,Jan Hamann,Will Handley,F. K. Hansen,D. Herranz,S. R. Hildebrandt,E. Hivon,Zhiqi Huang,Andrew H. Jaffe,W. C. Jones,A. Karakci,E. Keihänen,Reijo Keskitalo,K. Kiiveri,K. Kiiveri,J. B. Kim,Theodore Kisner,Lloyd Knox,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,P. Lemos,Julien Lesgourgues,François Levrier,Antony Lewis,Michele Liguori,Michele Liguori,P. B. Lilje,M. Lilley,V. Lindholm,V. Lindholm,M. López-Caniego,Philip Lubin,Yin-Zhe Ma,Yin-Zhe Ma,J. F. Macías-Pérez,Gianmarco Maggio,Davide Maino,Davide Maino,N. Mandolesi,N. Mandolesi,A. Mangilli,A. Marcos-Caballero,Michele Maris,Peter G. Martin,M. Martinelli,E. Martínez-González,Sabino Matarrese,Sabino Matarrese,N. Mauri,Jason D. McEwen,Peter Meinhold,Alessandro Melchiorri,A. Mennella,A. Mennella,M. Migliaccio,Marius Millea,Marius Millea,Marius Millea,Subhasish Mitra,Subhasish Mitra,Marc-Antoine Miville-Deschênes,Marc-Antoine Miville-Deschênes,Diego Molinari,Diego Molinari,L. Montier,L. Montier,Gianluca Morgante,Adam Moss,Paolo Natoli,Paolo Natoli,Hans Ulrik Nørgaard-Nielsen,L. Pagano,L. Pagano,Daniela Paoletti,B. Partridge,G. Patanchon,Hiranya V. Peiris,Francesca Perrotta,Valeria Pettorino,F. Piacentini,L. Polastri,G. Polenta,J.-L. Puget,J.-L. Puget,Jörg P. Rachen,Martin Reinecke,Mathieu Remazeilles,A. Renzi,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,E. P. S. Shellard,Chiara Sirignano,Chiara Sirignano,G. Sirri,Locke D. Spencer,R. A. Sunyaev,R. A. Sunyaev,A.-S. Suur-Uski,A.-S. Suur-Uski,Jan Tauber,D. Tavagnacco,D. Tavagnacco,M. Tenti,L. Toffolatti,L. Toffolatti,M. Tomasi,M. Tomasi,Tiziana Trombetti,Luca Valenziano,Jussi Valiviita,Jussi Valiviita,B. Van Tent,L. Vibert,L. Vibert,P. Vielva,F. Villa,Nicola Vittorio,Benjamin D. Wandelt,Ingunn Kathrine Wehus,Martin White,Simon D. M. White,Andrea Zacchei,Andrea Zonca +232 more
TL;DR: Aghanim et al. as mentioned in this paper used the same data set to derive a 95% upper bound of 0.020 using the principal component analysis (PCA) model and uniform priors on the PCA mode amplitudes.