Zobrazeno 1 - 10
of 403
pro vyhledávání: '"KAWAI, Hiroki"'
Autor:
Kawai, Hiroki, Oguri, Masamune
Icarus is an individual star observed near the macro-critical curve of the MACS J1149 cluster, with the magnification factor estimated to be an order of thousands. Since microlenses near the macro-critical curve influence the number of such high-magn
Externí odkaz:
http://arxiv.org/abs/2411.13816
Autor:
Kawai, Hiroki, Meneghetti, Massimo
The galaxy-galaxy strong lensing (GGSL) cross-section in observed galaxy clusters has been reported to be more than an order of magnitude higher than the theoretical prediction by the standard cold dark matter (CDM) model. In this study, we focus on
Externí odkaz:
http://arxiv.org/abs/2410.14543
Autor:
Kawai, Hiroki, Oguri, Masamune
Highly magnified individual stars such as Icarus and Earendel have recently been observed near critical curves of galaxy clusters with Hubble Space Telescope (HST) observations. These stars are estimated to be magnified with a factor of more than a f
Externí odkaz:
http://arxiv.org/abs/2407.16749
Autor:
Broadhurst, Tom, Li, Sung Kei, Alfred, Amruth, Diego, Jose M., Morilla, Paloma, Kelly, Patrick L., Sun, Fengwu, Oguri, Masamune, Williams, Hayley, Windhorst, Rogier, Zitrin, Adi, Abe, Katsuya T., Chen, Wenlei, Fudamoto, Yoshinobu, Kawai, Hiroki, Lim, Jeremy, Liu, Tao, Meena, Ashish K., Palencia, Jose M., Smoot, George F., Williams, Liliya L. R.
Microlensed stars recently discovered by JWST & HST follow closely the winding critical curve of A370 along all sections of the ``Dragon Arc" traversed by the critical curve. These transients are fainter than $m_{AB}>26.5$, corresponding to the Asymp
Externí odkaz:
http://arxiv.org/abs/2405.19422
Autor:
Fudamoto, Yoshinobu, Sun, Fengwu, Diego, Jose M., Dai, Liang, Oguri, Masamune, Zitrin, Adi, Zackrisson, Erik, Jauzac, Mathilde, Lagattuta, David J., Egami, Eiichi, Iani, Edoardo, Windhorst, Rogier A., Abe, Katsuya T., Bauer, Franz Erik, Bian, Fuyan, Bhatawdekar, Rachana, Broadhurst, Thomas J., Cai, Zheng, Chen, Chian-Chou, Chen, Wenlei, Cohen, Seth H., Conselice, Christopher J., Espada, Daniel, Foo, Nicholas, Frye, Brenda L., Fujimoto, Seiji, Furtak, Lukas J., Golubchik, Miriam, Hsiao, Tiger Yu-Yang, Jolly, Jean-Baptiste, Kawai, Hiroki, Kelly, Patrick L., Koekemoer, Anton M., Kohno, Kotaro, Kokorev, Vasily, Li, Mingyu, Li, Zihao, Lin, Xiaojing, Magdis, Georgios E., Meena, Ashish K., Nabizadeh, Armin, Richard, Johan, Steinhardt, Charles L., Wu, Yunjing, Zhu, Yongda, Zou, Siwei
Strong gravitational magnification by massive galaxy clusters enable us to detect faint background sources, resolve their detailed internal structures, and in the most extreme cases identify and study individual stars in distant galaxies. Highly magn
Externí odkaz:
http://arxiv.org/abs/2404.08045
Publikováno v:
Phys. Rev. D 110, 023519 (2024)
Fuzzy dark matter (FDM) is an intriguing candidate alternative to the standard cold dark matter (CDM). The FDM model predicts that dark halos have characteristic core structures generated by the effect of quantum pressure, which is different from the
Externí odkaz:
http://arxiv.org/abs/2312.10744
Publikováno v:
Phys. Rev. D 109, (2024) 083517
Astrometric perturbations of critical curves in strong lens systems are thought to be one of the most promising probes of substructures down to small-mass scales. While a smooth mass distribution creates a symmetric geometry of critical curves with r
Externí odkaz:
http://arxiv.org/abs/2311.18211
Autor:
Berenstein, David, Kawai, Hiroki
We study a spin chain for a confining string that arises at first order in degenerate perturbation from the strong-coupling expansion of the Kogut-Susskind Hamiltonian on a square lattice in the leading large $N$ expansion. We show some subsectors ar
Externí odkaz:
http://arxiv.org/abs/2308.11716
Autor:
Kawai, Hiroki, Tsuboi, Yohko, Iwakiri, Wataru B., Maeda, Yoshitomo, Katsuda, Satoru, Sasaki, Ryo, Kohara, Junya, TEAM, MAXI
Publikováno v:
2022PASJ...74..477K
We report on the results of our simultaneous observations of three large stellar flares with soft X-rays (SXRs) and an H$\mathrm{\alpha}$ emission line from two binary systems of RS CVn type. The energies released in the X-ray and H$\mathrm{\alpha}$
Externí odkaz:
http://arxiv.org/abs/2307.01469
A new quantum link microstructure was proposed for the lattice quantum chromodynamics (QCD) Hamiltonian, replacing the Wilson gauge links with a bilinear of fermionic qubits, later generalized to D-theory. This formalism provides a general framework
Externí odkaz:
http://arxiv.org/abs/2201.02412