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Angular power spectra are an important measure of the angular clustering of a given distribution. In Cosmology, they are applied to such vastly different observations as galaxy surveys that cover a fraction of the sky and the Cosmic…

Astrophysics · Physics 2007-11-15 Brett Hayes , Robert Brunner , Volodymyr Kindratenko

We present properties of moderately massive clusters of galaxies detected by the newly developed Hyper Suprime-Cam on the Subaru telescope using weak gravitational lensing. Eight peaks exceeding a S/N ratio of 4.5 are identified on the…

We present the first step toward deriving cosmological constraints through the abundances of galaxy clusters selected in a $510\,\mathrm{deg}^2$ weak-lensing aperture mass map, constructed with the Year-Three shear catalog from the Hyper…

We present a field-based signal extraction of weak lensing from noisy observations on the curved and masked sky. We test the analysis on a simulated Euclid-like survey, using a Euclid-like mask and noise level. To make optimal use of the…

Cosmology and Nongalactic Astrophysics · Physics 2023-02-09 A. Loureiro , L. Whiteway , E. Sellentin , J. S. Lafaurie , A. H. Jaffe , A. F. Heavens

We derive radial mass profiles of four strong lensing selected clusters which show prominent giant arcs (Abell 1703, SDSS J1446+3032, SDSS J1531+3414, and SDSS J2111-0115), by combining detailed strong lens modeling with weak lensing shear…

Different cosmological probes, such as primary cosmic microwave background (CMB) anisotropies, CMB lensing, and cosmic shear, are sensitive to the primordial power spectrum (PPS) over different ranges of wavenumbers. In this paper, we…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-27 Ryo Terasawa , Masahiro Takada , Sunao Sugiyama , Toshiki Kurita

We present the result of searching for clusters of galaxies based on weak gravitational lensing analysis of the $\sim 160$~deg$^2$ area surveyed by Hyper Suprime-Cam (HSC) as a Subaru Strategic Program. HSC is a new prime focus optical…

We address the amount of information in the non-Gaussian regime of weak lensing surveys by modelling all relevant covariances of the power spectra and bispectra, using 1000 ray-tracing simulation realizations for a Lambda-CDM model and an…

Cosmology and Nongalactic Astrophysics · Physics 2013-08-09 Issha Kayo , Masahiro Takada , Bhuvnesh Jain

We present a joint cosmological analysis of the two-point correlation function and the aperture-mass skewness measured from the Year 3 data of the Hyper Suprime-Cam Subaru Strategic Program (HSC-Y3). The aperture-mass skewness is a…

Cosmology and Nongalactic Astrophysics · Physics 2025-08-20 Sunao Sugiyama , Rafael C. H. Gomes , Bhuvnesh Jain

We reconsider the inference of spatial power spectra from angular clustering data and show how to include correlations in both the angular correlation function and the spatial power spectrum. Inclusion of the full covariance matrices…

Astrophysics · Physics 2009-10-31 Daniel J. Eisenstein , Matias Zaldarriaga

This paper is the first of a series of papers constraining cosmological parameters with weak lensing peak statistics using $\sim 450~\rm deg^2$ of imaging data from the Kilo Degree Survey (KiDS-450). We measure high signal-to-noise ratio…

Constrained codes are used to eliminate error-prone patterns in various practical systems. Recently, we introduced efficient binary symmetric lexicographically-ordered constrained (LOCO) codes and asymmetric LOCO (A-LOCO) codes to increase…

Information Theory · Computer Science 2020-10-20 Jessica Centers , Xinyu Tan , Ahmed Hareedy , Robert Calderbank

Modern datasets have the precision necessary to uncover new information by including higher-order, non-Gaussian information into cosmological inference. The marked power spectrum offers access to such information while preserving the…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-05 Haruki Ebina , Martin White , Edmond Chaussidon

The Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) is a three-layered imaging survey aimed at addressing some of the most outstanding questions in astronomy today, including the nature of dark matter and dark energy. The survey has…

Instrumentation and Methods for Astrophysics · Physics 2018-02-14 Hiroaki Aihara , Robert Armstrong , Steven Bickerton , James Bosch , Jean Coupon , Hisanori Furusawa , Yusuke Hayashi , Hiroyuki Ikeda , Yukiko Kamata , Hiroshi Karoji , Satoshi Kawanomoto , Michitaro Koike , Yutaka Komiyama , Robert H. Lupton , Sogo Mineo , Hironao Miyatake , Satoshi Miyazaki , Tomoki Morokuma , Yoshiyuki Obuchi , Yukie Oishi , Yuki Okura , Paul A. Price , Tadafumi Takata , Manobu M. Tanaka , Masayuki Tanaka , Yoko Tanaka , Tomohisa Uchida , Fumihiro Uraguchi , Yousuke Utsumi , Shiang-Yu Wang , Yoshihiko Yamada , Hitomi Yamanoi , Naoki Yasuda , Nobuo Arimoto , Masashi Chiba , Francois Finet , Hiroki Fujimori , Seiji Fujimoto , Junko Furusawa , Tomotsugu Goto , Andy Goulding , James E. Gunn , Yuichi Harikane , Takashi Hattori , Masao Hayashi , Krzysztof G. Helminiak , Ryo Higuchi , Chiaki Hikage , Paul T. P. Ho , Bau-Ching Hsieh , Kuiyun Huang , Song Huang , Masatoshi Imanishi , Ikuru Iwata , Anton T. Jaelani , Hung-Yu Jian , Nobunari Kashikawa , Nobuhiko Katayama , Takashi Kojima , Akira Konno , Shintaro Koshida , Haruka Kusakabe , Alexie Leauthaud , C. -H. Lee , Lihwai Lin , Yen-Ting Lin , Rachel Mandelbaum , Yoshiki Matsuoka , Elinor Medezinski , Shoken Miyama , Rieko Momose , Anupreeta More , Surhud More , Shiro Mukae , Ryoma Murata , Hitoshi Murayama , Tohru Nagao , Fumiaki Nakata , Hiroko Niikura , Atsushi J. Nishizawa , Masamune Oguri , Nobuhiro Okabe , Yoshiaki Ono , Masato Onodera , Masafusa Onoue , Masami Ouchi , Tae-Soo Pyo , Takatoshi Shibuya , Kazuhiro Shimasaku , Melanie Simet , Joshua Speagle , David N. Spergel , Michael A. Strauss , Yuma Sugahara , Naoshi Sugiyama , Yasushi Suto , Nao Suzuki , Philip J. Tait , Masahiro Takada , Tsuyoshi Terai , Yoshiki Toba , Edwin L. Turner , Hisakazu Uchiyama , Keiichi Umetsu , Yuji Urata , Tomonori Usuda , Sherry Yeh , Suraphong Yuma

The next generation of weak lensing surveys will measure the matter distribution of the local Universe with unprecedented precision, allowing the resolution of non-Gaussian features of the convergence field. This encourages the use of…

Cosmology and Nongalactic Astrophysics · Physics 2023-08-17 Dominik Zürcher , Janis Fluri , Virginia Ajani , Silvan Fischbacher , Alexandre Refregier , Tomasz Kacprzak

We study the projected clustering of photometric luminous red galaxies from the DESI Legacy Survey, combining their angular power spectrum, bispectrum, and cross-correlation with maps of the CMB lensing convergence from the Planck…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-21 Francesco Verdiani , Lea Harscouet , Matteo Zennaro , David Alonso , Boryana Hadzhiyska

We present results of weak lensing cluster counts obtained from 11 sq.deg SuprimeCam data. Although the area is much smaller than previous work dealing with weak lensing peak statistics, the number density of galaxies usable for weak…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Takashi Hamana , Junya Sakurai , Michitaro Koike , Lance Miller

We present and characterize the catalog of galaxy shape measurements that will be used for cosmological weak lensing measurements in the Wide layer of the first year of the Hyper Suprime-Cam (HSC) survey. The catalog covers an area of 136.9…

We describe the first spectroscopic tomographic (spectrotomographic) weak lensing measurement for a galaxy cluster based only on background galaxies with spectroscopically determined redshifts. We use the massive cluster A2029 to…

Cosmology and Nongalactic Astrophysics · Physics 2020-09-21 Ian Dell'Antonio , Jubee Sohn , Margaret J. Geller , Jacqueline McCleary , Anja von der Linden

We present wide-field (167 deg$^2$) weak lensing mass maps from the Hyper Supreme-Cam Subaru Strategic Program (HSC-SSP). We compare these weak lensing based dark matter maps with maps of the distribution of the stellar mass associated with…