Ismaël Cognard - Laboratoire de Physique et Chimie de l’Environnement et de l’Espace, CNRS;Université d'Orléans

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Bio

J'utilise le grand radiotélescope installé à la Station de Radioastronomie de Nançay pour étudier les pulsars millisecondes, et en particulier y rechercher la signature des ondes gravitationnelles émises par des trous noirs binaires super-massifs installés au centre de certaines galaxies. J'utilise pour cela une instrumentation spécialement dédié aux pulsars.

Research Interests

Papers共 272 篇Author StatisticsCo-AuthorSimilar Experts

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The NenuFAR Pulsar Blind Survey (NPBS). I. Survey Overview, Expectations, and First Redetections

M. Brionne,J. -m. Griessmeier,I. Cognard,G. Theureau,L. Bondonneau, R. Gros,A. Loh,R. A. Main,I. P. Kravtsov,V. Zakharenko,V. I. Kondratiev,J. W. Mckee,A. Possenti,C. Tiburzi,B. Cecconi,S. Corbel,J. N. Girard,P. Zarka

ASTRONOMY & ASTROPHYSICS (2025)

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A Census of Galactic Spider Binary Millisecond Pulsars with the Nançay Radio Telescope

Clara Blanchard,Lucas Guillemot,Guillaume Voisin,Ismaël Cognard,Gilles Theureau

arxiv（2025）

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Rapid Construction of Joint Pulsar Timing Array Datasets: the Lite Method

Bjorn Larsen,Chiara M. F. Mingarelli, Paul T. Baker,Jeffrey S. Hazboun, Siyuan Chen,Levi Schult,Stephen R. Taylor,Joseph Simon, John Antoniadis, Jeremy Baier, R. Nicolaos Caballero,Aurélien Chalumeau,Zu-Cheng Chen,Ismael Cognard, Debabrata Deb, Valentina Di Marco,Timothy Dolch, Innocent O. Eya,Elizabeth C. Ferrara, Kyle A. Gersbach, Deborah C. Good, Huanchen Hu,Agastya Kapur, Shubham Kala,Michael Kramer,Michael T. Lam, William G. Lamb,T. Joseph W. Lazio, Kuo Liu, Yang Liu,Maura McLaughlin, David Nice, Benetge B. P. Perera,Antoine Petiteau, Scott M. Ransom, Daniel J. Reardon, Christopher J. Russell, Golam M. Shaifullah,Lorenzo Speri,Aman Srivastava,Gilles Theureau,Jingbo Wang, Jun Wang, Lei Zhang

arxiv（2025）

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Impact of the Observation Frequency Coverage on the Significance of a Gravitational Wave Background Detection in Pulsar Timing Array Data

I. Ferranti,M. Falxa,A. Sesana,A. Chalumeau, N. Porayko,G. Shaifullah,I. Cognard,L. Guillemot,M. Kramer, K. Liu,G. Theureau

ASTRONOMY & ASTROPHYSICS (2025)

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The Polarimetric Response of the Nançay Radio Telescope and Its Impact on Precision Pulsar Timing

Lucas Guillemot,Willem van Straten,Ismaël Cognard,Aurélien Chalumeau,Gilles Theureau, Éric Gérard

arxiv（2025）

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A Deep Neural Network to Restore Pulsar Dynamic Spectra Corrupted by Radio Frequency Interference

Xiao Zhang,Ismael Cognard,Nicolas Dobigeon

SOFTWARE AND CYBERINFRASTRUCTURE FOR ASTRONOMY VIII (2024)

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The NANOGrav 15 Yr Data Set: Chromatic Gaussian Process Noise Models for Six Pulsars

Bjorn Larsen,Chiara M. F. Mingarelli,Jeffrey S. Hazboun,Aurelien Chalumeau,Deborah C. Good,Joseph Simon,Gabriella Agazie,Akash Anumarlapudi,Anne M. Archibald,Zaven Arzoumanian,Paul T. Baker,Paul R. Brook,H. Thankful Cromartie,Kathryn Crowter,Megan E. DeCesar,Paul B. Demorest,Timothy Dolch,Elizabeth C. Ferrara,William Fiore,Emmanuel Fonseca,Gabriel E. Freedman,Nate Garver-Daniels,Peter A. Gentile,Joseph Glaser,Ross J. Jennings,Megan L. Jones,David L. Kaplan,Matthew Kerr,Michael T. Lam,Duncan R. Lorimer,Jing Luo,Ryan S. Lynch,Alexander McEwen,Maura A. McLaughlin,Natasha McMann,Bradley W. Meyers, Cherry Ng,David J. Nice,Timothy T. Pennucci,Benetge B. P. Perera,Nihan S. Pol,Henri A. Radovan,Scott M. Ransom,Paul S. Ray,Ann Schmiedekamp,Carl Schmiedekamp,Brent J. Shapiro-Albert,Ingrid H. Stairs,Kevin Stovall,Abhimanyu Susobhanan,Joseph K. Swiggum,Haley M. Wahl,David J. Champion,Ismael Cognard,Lucas Guillemot,Huanchen Hu,Michael J. Keith,Kuo Liu,James W. McKee,Aditya Parthasarathy,Delphine Perrodin,Andrea Possenti,Golam M. Shaifullah,Gilles Theureau

The Astrophysical Journalno. 1 (2024): 49-49

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