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pro vyhledávání: '"Kumamoto, Hiroki"'
Autor:
Tanaka, Hiromichi, Kumamoto, Hiroki
Publikováno v:
Main Group Metal Chemistry, Vol 24, Iss 9, Pp 617-620 (2001)
Externí odkaz:
https://doaj.org/article/1c87cb46f8c543a7a7b7cd6bd82402bf
Milli-second pulsars with highly stable periods can be considered as very precise clocks and can be used for pulsar timing array (PTA) which attempts to detect nanoheltz gravitational waves (GWs) directly. Main sources of nanoheltz GWs are supermassi
Externí odkaz:
http://arxiv.org/abs/2104.03629
Autor:
Dai, Shi, Johnston, Simon, Kerr, Matthew, Camilo, Fernando, Cameron, Andrew, Toomey, Lawrence, Kumamoto, Hiroki
The globular cluster Omega Centauri is the most massive and luminous cluster in the Galaxy. The $\gamma$-ray source FL8Y J1326.7$-$4729 is coincident with the core of the cluster, leading to speculation that hitherto unknown radio pulsars or annihila
Externí odkaz:
http://arxiv.org/abs/1912.08079
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 489, Issue 3, November 2019, Pages 3547 - 3552
We probe ultra-low-frequency gravitational waves (GWs) with statistics of spin-down rates of milli-second pulsars (MSPs) by a method proposed in our prevous work (Yonemaru et al. 2016). The considered frequency range is $10^{-12}{\rm Hz} \lesssim f_{
Externí odkaz:
http://arxiv.org/abs/1903.01129
A new detection method for gravitational waves (GWs) with ultra-low frequencies ($f_{\rm GW} \lesssim 10^{-10}~{\rm Hz}$), which is much lower than the range of pulsar timing arrays (PTAs), was proposed in Yonemaru et al. (2016). This method utilizes
Externí odkaz:
http://arxiv.org/abs/1902.04787
Autor:
Takamatsu, Yuki, Hayashi, Sanae, Kumamoto, Hiroki, Imoto, Shuhei, Tanaka, Yasuhito, Mitsuya, Hiroaki, Higashi-Kuwata, Nobuyo
Publikováno v:
In Virus Research May 2023 329
Akademický článek
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Autor:
Yonemaru, Naoyuki, Takahashi, Keitaro, Kumamoto, Hiroki, Dai, Shi, Yoshiura, Shintaro, Ideguchi, Shinsuke
Pulsar search with time-domain observation is very computationally expensive and data volume will be enormous with the next generation telescopes such as the Square Kilometre Array. We apply artificial neural networks (ANNs), a machine learning metho
Externí odkaz:
http://arxiv.org/abs/1811.11478
A new detection method for ultra-low frequency gravitational waves (GWs) with a frequency much lower than the observational range of pulsar timing arrays (PTAs) was suggested in Yonemaru et al. (2016). In the PTA analysis, ultra-low frequency GWs ($\
Externí odkaz:
http://arxiv.org/abs/1705.04733
Publikováno v:
Phys. Rev. D 95, 043531 (2017)
Pulsar timing arrays are one of the powerful tools to test the existence of cosmic strings through searching for the gravitational wave background. The amplitude of the background connects to information on cosmic strings such as the tension and stri
Externí odkaz:
http://arxiv.org/abs/1604.00332