Zobrazeno 1 - 10
of 8 326
pro vyhledávání: '"Akiyama M"'
Publikováno v:
Research and Reports in Urology, Vol Volume 15, Pp 395-401 (2023)
Norichika Ueda,1 Mototaka Sato,1 Atsuki Matsukawa,1 Yuta Oki,2 Ryoya Mizuno,1 Mai Akiyama,1 Norihide Tei,1 Osamu Miyake1 1Department of Urology, Toyonaka Municipal Hospital, Toyonaka, Japan; 2Department of Urology, Osaka Rosai Hospital, Sakai, JapanC
Externí odkaz:
https://doaj.org/article/d140a82284a945fdabff7d1ed4df62cc
Autor:
Pouliasis, E., Ruiz, A., Georgantopoulos, I., Vito, F., Gilli, R., Vignali, C., Ueda, Y., Koulouridis, E., Akiyama, M., Marchesi, S., Laloux, B., Nagao, T., Paltani, S., Pierre, M., Toba, Y., Habouzit, M., Vijarnwannaluk, B., Garrel, C.
Publikováno v:
A&A 685, A97 (2024)
The XLF of AGN offers a robust tool to study the evolution and the growth of SMBHs over cosmic time. Owing to the limited area probed by X-ray surveys, optical surveys are routinely used to probe the accretion in the high redshift Universe $z\geq 3$.
Externí odkaz:
http://arxiv.org/abs/2401.13515
Publikováno v:
Advances in Medical Education and Practice, Vol 2013, Iss default, Pp 127-131 (2013)
Takako Soma,1,2,* Yuichi Sakamoto,1,2,* Yasufumi Matsuoka,1,2 Tomoko Nakano,1,2 Masatoshi Kamiuttanai,1 Masaki Akiyama11Department of General Medicine, Sotogahama Central Hospital, Aomori, Japan; 2Department of General Medicine, Aomori Prefectural Ce
Externí odkaz:
https://doaj.org/article/6633ac809ead4ec19ff48d6f3ed15322
Recent observations have revealed an interesting active galactic nuclei (AGN) subclass that shows strong activity at large scales ($\sim1$ kpc) but weaker at small scales ($<10$ pc), suggesting a strong change in the mass accretion rate of the centra
Externí odkaz:
http://arxiv.org/abs/2208.12286
Autor:
Pouliasis, E., Mountrichas, G., Georgantopoulos, I., Ruiz, A., Gilli, R., Koulouridis, E., Akiyama, M., Ueda, Y., Garrel, C., Nagao, T., Paltani, S., Pierre, M., Toba, Y., Vignali, C.
Publikováno v:
A&A 667, A56 (2022)
In this work, we aimed at investigating the star formation rate of active galactic nuclei host galaxies in the early Universe. To this end, we constructed a sample of 149 luminous ($\rm L_{2-10keV} > 10^{44}\,erg\,s^{-1}$) X-ray AGNs at $\rm z \geq3.
Externí odkaz:
http://arxiv.org/abs/2206.13935
Autor:
Pouliasis, E., Georgantopoulos, I., Ruiz, A., Gilli, R., Koulouridis, E., Akiyama, M., Ueda, Y., Chiappetti, L., Garrel, C., Horellou, C., Nagao, T., Paltani, S., Pierre, M., Toba, Y., Vignali, C.
Publikováno v:
A&A 658, A175 (2022)
X-rays offer a reliable method to identify Active Galactic Nuclei (AGN). However, in the high-redshift Universe X-ray AGN are poorly sampled due to their relatively low space density and the small areas covered by X-ray surveys. In addition to wide-a
Externí odkaz:
http://arxiv.org/abs/2111.04659
Autor:
Hayashino, T., Inoue, A. K., Kousai, K., Kashikawa, N., Mawatari, K., Matsuda, Y., Tejos, N., Prochaska, J. X., Iwata, I., Noll, S., Burgarella, D., Yamada, T., Akiyama, M.
In the SSA22 field which exhibits a large-scale proto-cluster at $z=3.1$, we carried out a spectroscopic survey for Lyman Break Galaxies (LBGs) with the VLT/VIMOS and identified 78 confident LBGs at $z=2.5$--4. We stacked their spectra in the observe
Externí odkaz:
http://arxiv.org/abs/1901.11242
Akademický článek
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Akademický článek
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Autor:
Schulze, A., Silverman, J. D., Kashino, D., Akiyama, M., Schramm, M., Sanders, D., Kartaltepe, J., Daddi, E., Rodighiero, G., Renzini, A., Arimoto, N., Nagao, T., Puglisi, A., Trakhtenbrot, B., Civano, F., Suh, H.
We present near-IR spectroscopy in J- and H-band for a large sample of 243 X-ray selected moderate-luminosity type-1 AGN in the COSMOS, SXDS and E-CDF-S survey fields using the multi-object spectrograph Subaru/FMOS. Our sample covers the redshift ran
Externí odkaz:
http://arxiv.org/abs/1810.07445