R
Reza Ansari
Researcher at University of Paris
Publications - 46
Citations - 1791
Reza Ansari is an academic researcher from University of Paris. The author has contributed to research in topics: Gravitational microlensing & Stars. The author has an hindex of 16, co-authored 46 publications receiving 1507 citations. Previous affiliations of Reza Ansari include Université Paris-Saclay & Centre national de la recherche scientifique.
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Progress in the Construction and Testing of the Tianlai Radio Interferometers
Santanu Das,Christopher J. Anderson,Reza Ansari,J.E. Campagne,Daniel Charlet,Xuelei Chen,Zhiping Chen,Aleksander J. Cianciara,Pierre Colom,Yanping Cong,Kevin G. Gayley,Jingchao Geng,Jie Hao,Qizhi Huang,Celeste S. Keith,Chao Li,Jixia Li,Yichao Li,Liu Chao,Tao Liu,Christophe Magneville,John Marriner,Jean Michel Martin,Marc Moniez,Trevor M. Oxholm,Ue-Li Pen,Olivier Perdereau,Jeffrey B. Peterson,Huli Shi,Shu Lin,Albert Stebbins,Shijie Sun,Peter Timbie,Steve Torchinsky,Gregory S. Tucker,Guisong Wang,Rongli Wang,Xin Wang,Yougang Wang,Fengquan Wu,Yidong Xu,Kaifeng Yu,Jiao Zhang,Juyong Zhang,Le Zhang,Jialu Zhu,Shifan Zuo +46 more
TL;DR: The Tianlai Pathfinder as discussed by the authors is a radio interferometer-based array of three 15m + 40m cylinder telescopes and sixteen 6m diameter dish antennas located in a radio-quiet part of western China.
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Searching for Galactic hidden gas through interstellar scintillation: Results from a test with the NTT-SOFI detector ?
TL;DR: In this article, the authors used the LSST to search for scintillation induced by molecular gas in visible dark nebulae as well as by hypothetical halo clumpuscules of cool molecular hydrogen (H2−He).
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Blue irregular variable stars in the Small Magellanic Cloud from EROS2 : Herbig Ae/Be or classical Be stars ?
J. P. Beaulieu,W. J. de Wit,W. J. de Wit,H. J. G. L. M. Lamers,J. B. Marquette,Ch. Coutures,P. Leisy,S. Totor,Nathalie Palanque-Delabrouille,C. Afonso,C. Alard,J. N. Albert,Johannes Andersen,Reza Ansari,Éric Aubourg,P. Bareyre,F. Bauer,G. Blanc,X. Charlot,F. Couchot,F. Derue,Roger Ferlet,Pascal Fouqué,J. F. Glicenstein,Bertrand Goldman,David S. Graff,M. Gros,J. Haissinski,Jean-Christophe Hamilton,D. Hardin,J. de Kat,T. Lasserre,É. Lesquoy,É. Lesquoy,C. Loup,Christophe Magneville,B. Mansoux,E. Maurice,A. Milsztajn,Marc Moniez,O. Perdereau,L. Prevot,N. Regnault,J. Rich,Michel Spiro,Alfred Vidal-Madjar,L. Vigroux,S. Zylberajch +47 more
TL;DR: In this article, the discovery of two blue objects with irregular photometric behaviour of V 0:1{0:4 mag on time scales of 20 to 200 days using data from the EROS2 microlensing survey.
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Sky reconstruction for the Tianlai cylinder array
Jiao Zhang,Shifan Zuo,Reza Ansari,Xuelei Chen,Yichao Li,Fengquan Wu,J.E. Campagne,Christophe Magneville +7 more
TL;DR: In this paper, a sky map reconstruction method for transit type interferometers was applied to the Tianlai cylinder array, which can be applied to cylindrical array as well as dish arrays and compute the instrument response, synthesized beam, transfer function and the noise power spectrum.
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Removing the Microlensing Blending-Parallax Degeneracy Using Source Variability
Roberto J. Assef,Andrew Gould,C. Afonso,C. Afonso,J. N. Albert,Johannes Andersen,Reza Ansari,Éric Aubourg,P. Bareyre,J. P. Beaulieu,X. Charlot,P. Tisserand +11 more
TL;DR: In this paper, the intrinsic variability of a microlensed star is used to constrain the nature of the lens by breaking the degeneracy between the microlens parallax and the blended light.