W
Wei Zheng
Researcher at Johns Hopkins University
Publications - 28
Citations - 3353
Wei Zheng is an academic researcher from Johns Hopkins University. The author has contributed to research in topics: Galaxy & Galaxy cluster. The author has an hindex of 17, co-authored 26 publications receiving 3111 citations.
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Journal ArticleDOI
The cluster lensing and supernova survey with hubble: an overview
Marc Postman,Dan Coe,Narciso Benítez,Larry Bradley,Tom Broadhurst,Megan Donahue,H. Ford,Or Graur,Genevieve J. Graves,S. Jouvel,Anton M. Koekemoer,D. Lemze,Elinor Medezinski,Alberto Molino,Leonidas A. Moustakas,Sara Ogaz,Adam G. Riess,Adam G. Riess,S. Rodney,Piero Rosati,Keiichi Umetsu,Wei Zheng,Adi Zitrin,Matthias Bartelmann,R. J. Bouwens,Nicole G. Czakon,Sunil Golwala,O. Host,Leopoldo Infante,Saurabh Jha,Yolanda Jiménez-Teja,Daniel D. Kelson,Ofer Lahav,Ruth Lazkoz,D. Maoz,C. McCully,Peter Melchior,Massimo Meneghetti,Julian Merten,John Moustakas,Mario Nonino,Brandon Patel,Eniko Regos,Jack Sayers,Stella Seitz,Arjen van der Wel +45 more
TL;DR: The Cluster Lensing And Supernova Survey with Hubble (CLASH) as mentioned in this paper is a 524-orbit Multi-Cycle Treasury Program to use the gravitational lensing properties of 25 galaxy clusters to accurately constrain their mass distributions.
Journal ArticleDOI
A magnified young galaxy from about 500 million years after the Big Bang
Wei Zheng,Marc Postman,Adi Zitrin,John Moustakas,Xinwen Shu,Stephanie Jouvel,O. Host,Alberto Molino,Larry Bradley,Dan Coe,Leonidas A. Moustakas,Mauricio Carrasco,H. Ford,Narciso Benítez,Tod R. Lauer,Stella Seitz,Rychard Bouwens,Anton M. Koekemoer,Elinor Medezinski,Matthias Bartelmann,Tom Broadhurst,Tom Broadhurst,Megan Donahue,Claudio Grillo,Leopoldo Infante,Saurabh Jha,Daniel D. Kelson,Ofer Lahav,D. Lemze,Peter Melchior,Massimo Meneghetti,Julian Merten,Mario Nonino,Sara Ogaz,Piero Rosati,Keiichi Umetsu,Arjen van der Wel +36 more
TL;DR: In this paper, the authors report multiband observations of the cluster MACS J1149+2223 that have revealed (with high probability) a gravitationally magnified galaxy from the early Universe, at a redshift of z = 9.6 − 0.2 (that is, a cosmic age of 490 − 15 million years, or 3.6 per cent of the age of the Universe).
Journal ArticleDOI
CLASH: THREE STRONGLY LENSED IMAGES OF A CANDIDATE z ≈ 11 GALAXY
Dan Coe,Adi Zitrin,Mauricio Carrasco,Mauricio Carrasco,Xinwen Shu,Wei Zheng,Marc Postman,Larry Bradley,Anton M. Koekemoer,Rychard Bouwens,Tom Broadhurst,Tom Broadhurst,A. Monna,Ole Host,Ole Host,Leonidas A. Moustakas,H. Ford,John Moustakas,Arjen van der Wel,Megan Donahue,Steven A. Rodney,Narciso Benítez,Stephanie Jouvel,Stephanie Jouvel,Stella Seitz,Daniel D. Kelson,Piero Rosati +26 more
TL;DR: In this article, the authors presented a candidate for the most distant galaxy known to date with a photometric redshift of z = 10.7$^{+0.4}$ (95% confidence limits; with z {lt} 9.2-1.2{$σ$}).
Journal ArticleDOI
CLASH: the enhanced lensing efficiency of the highly elongated merging cluster MACS J0416.1–2403
Adi Zitrin,Massimo Meneghetti,Keiichi Umetsu,Tom Broadhurst,Tom Broadhurst,Matthias Bartelmann,Rychard Bouwens,Larry Bradley,Mauricio Carrasco,Mauricio Carrasco,Dan Coe,H. Ford,Daniel D. Kelson,Anton M. Koekemoer,Elinor Medezinski,John Moustakas,Leonidas A. Moustakas,Mario Nonino,Marc Postman,Piero Rosati,Gregor Seidel,Stella Seitz,Irene Sendra,Xinwen Shu,Jesús Vega,Jesús Vega,Wei Zheng +26 more
TL;DR: In this paper, the authors performed a strong lensing analysis of the merging galaxy cluster MACS J0416 and found that the observed elongation boosts the number of multiple images, per critical area, by a factor of 2.5 ×, due to increased ratio of the caustic area relative to the critical area.
Journal ArticleDOI
New Multiply-Lensed Galaxies Identified in ACS/NIC3 Observations of Cl0024+1654, Using an Improved Mass Model
Adi Zitrin,Tom Broadhurst,Keiichi Umetsu,Keiichi Umetsu,Dan Coe,Narciso Benítez,Begoña Ascaso,Larry Bradley,Holland C. Ford,James Jee,Elinor Medezinski,Yoel Rephaeli,Wei Zheng +12 more
TL;DR: In this article, an improved strong-lensing analysis of Cl0024+1654 (z = 0.39) using deep Hubble Space Telescope (HST)/Advanced Camera for Surveys (ACS)/NIC3 images, based on 33 multiply-lensed images of 11 background galaxies.