Zobrazeno 1 - 10
of 291
pro vyhledávání: '"Futamase, Toshifumi"'
The Hubble tension casts a blight on the standard cosmology. As a possible solution to the problem, the local variation of the expansion rate has been proposed where the spatial averaging over a finite domain was introduced in order to restore the lo
Externí odkaz:
http://arxiv.org/abs/2301.12042
The Hubble tension cast a blight on the standard cosmology. As a possible attitude to the problem, the local variation of the expansion rate in an inhomogeneous cosmology has been proposed where the spatial averaging over a finite domain was introduc
Externí odkaz:
http://arxiv.org/abs/2203.14435
Autor:
Okura, Yuki, Futamase, Toshifumi
Weak gravitational lensing flexions are a kind of weak lensing distortion which are defined as the spin 1 and spin 3 combinations of the third order derivatives of gravitational lensing potential. Since the shear has spin 2 combination of the second
Externí odkaz:
http://arxiv.org/abs/2109.00155
Autor:
Liu, Xiangkun, Liu, Dezi, Gao, Zucheng, Wei, Chengliang, Li, Guoliang, Fu, Liping, Futamase, Toshifumi, Fan, Zuhui
Publikováno v:
Published in Physical Review D, Volume 103, Issue 12, p.123504, 2021
We propose a novel method to detect cosmic magnification signals by cross-correlating foreground convergence fields constructed from galaxy shear measurements with background galaxy positional distributions, namely shear-number density correlation. W
Externí odkaz:
http://arxiv.org/abs/2104.13595
Publikováno v:
ApJ, 904, 169 (2020)
We show that future observations of binary neutron star systems with electromagnetic counterparts together with the traditional probes of low- and high-redshift Type Ia supernovae (SNe Ia) can help resolve the Hubble tension. The luminosity distance
Externí odkaz:
http://arxiv.org/abs/2008.00869
Autor:
Kawamura, Seiji, Ando, Masaki, Seto, Naoki, Sato, Shuichi, Musha, Mitsuru, Kawano, Isao, Yokoyama, Jun'ichi, Tanaka, Takahiro, Ioka, Kunihito, Akutsu, Tomotada, Takashima, Takeshi, Agatsuma, Kazuhiro, Araya, Akito, Aritomi, Naoki, Asada, Hideki, Chiba, Takeshi, Eguchi, Satoshi, Enoki, Motohiro, Fujimoto, Masa-Katsu, Fujita, Ryuichi, Futamase, Toshifumi, Harada, Tomohiro, Hayama, Kazuhiro, Himemoto, Yoshiaki, Hiramatsu, Takashi, Hong, Feng-Lei, Hosokawa, Mizuhiko, Ichiki, Kiyotomo, Ikari, Satoshi, Ishihara, Hideki, Ishikawa, Tomohiro, Itoh, Yousuke, Ito, Takahiro, Iwaguchi, Shoki, Izumi, Kiwamu, Kanda, Nobuyuki, Kanemura, Shinya, Kawazoe, Fumiko, Kobayashi, Shiho, Kohri, Kazunori, Kojima, Yasufumi, Kokeyama, Keiko, Kotake, Kei, Kuroyanagi, Sachiko, Maeda, Kei-ichi, Matsushita, Shuhei, Michimura, Yuta, Morimoto, Taigen, Mukohyama, Shinji, Nagano, Koji, Nagano, Shigeo, Naito, Takeo, Nakamura, Kouji, Nakamura, Takashi, Nakano, Hiroyuki, Nakao, Kenichi, Nakasuka, Shinichi, Nakayama, Yoshinori, Nakazawa, Kazuhiro, Nishizawa, Atsushi, Ohkawa, Masashi, Oohara, Kenichi, Sago, Norichika, Saijo, Motoyuki, Sakagami, Masaaki, Sakai, Shin-ichiro, Sato, Takashi, Shibata, Masaru, Shinkai, Hisaaki, Shoda, Ayaka, Somiya, Kentaro, Sotani, Hajime, Takahashi, Ryutaro, Takahashi, Hirotaka, Akiteru, Takamori, Taniguchi, Keisuke, Taruya, Atsushi, Tsubono, Kimio, Tsujikawa, Shinji, Ueda, Akitoshi, Ueda, Ken-ichi, Watanabe, Izumi, Yagi, Kent, Yamada, Rika, Yokoyama, Shuichiro, Yoo, Chul-Moon, Zhu, Zong-Hong
Deci-hertz Interferometer Gravitational Wave Observatory (DECIGO) is the future Japanese space mission with a frequency band of 0.1 Hz to 10 Hz. DECIGO aims at the detection of primordial gravitational waves, which could be produced during the inflat
Externí odkaz:
http://arxiv.org/abs/2006.13545
Autor:
Jaelani, Anton T., More, Anupreeta, Oguri, Masamune, Sonnenfeld, Alessandro, Suyu, Sherry H., Rusu, Cristian E., Wong, Kenneth C., Chan, James H. H., Kayo, Issha, Lee, Chien-Hsiu, Chao, Dani C. -Y., Coupon, Jean, Inoue, Kaiki T., Futamase, Toshifumi
We report the largest sample of candidate strong gravitational lenses belonging to the Survey of Gravitationally-lensed Objects in HSC Imaging for group-to-cluster scale (SuGOHI-c) systems. These candidates are compiled from the S18A data release of
Externí odkaz:
http://arxiv.org/abs/2002.01611
Publikováno v:
Phys. Rev. D 100, 063534 (2019)
We show that peculiar velocities of Type Ia supernovae can be used to derive constraints on the sum of neutrino masses, $\Sigma m_{\nu}$, and dark energy equation of state, $w = w_0+w_a(1-a)$, from measurements of the magnitude-redshift relation, com
Externí odkaz:
http://arxiv.org/abs/1907.02328
We investigate the possibility to have a constraint on the mass of thermal warm dark matter (WDM) particle from the expected data of the Wide Field Infrared Survey Telescope (WFIRST) survey if all the dark matter is warm. For this purpose we consider
Externí odkaz:
http://arxiv.org/abs/1905.07539
Autor:
Kasai, Masumi, Futamase, Toshifumi
Publikováno v:
Progress of Theoretical and Experimental Physics, Volume 2019, Issue 7, July 2019, 073E01
The Hubble constant problem is the discrepancy between different measurements of the Hubble constant in different scales. We show that this problem can be resolved within the general relativistic framework of the perturbation theory in the inhomogene
Externí odkaz:
http://arxiv.org/abs/1904.09689