Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Takanashi, Naohiro"'
Autor:
Takanashi, Naohiro, Hiramatsu, Masaaki, Kawagoe, Shio, Kusakabe, Nobuhiko, Sawada, Koki, Tamazawa, Harufumi
We report on the results of a survey we conducted on the Japanese public's attitudes toward astronomy. This survey was conducted via an online questionnaire, with 2,000 responses received. Based on this data, we present what kind of interest the gene
Externí odkaz:
http://arxiv.org/abs/2312.13402
Publikováno v:
OEJV, 233, 1 (2022)
We report the results of our continuous UBVRI-band photometry of Betelgeuse from 1999 to 2022 using the same photometric system. There are two advantages in our observation: (1) we used a photodiode as a detector to avoid saturation, and (2) our data
Externí odkaz:
http://arxiv.org/abs/2211.04512
Autor:
Hiramatsu, Masaaki, S_Asagiri, Amano, Stella. G., Takanashi, Naohiro, Kawagoe, Shio K., Kamegai, Kazuhisa
Publikováno v:
Published in the Communicating Astronomy with the Public Journal, Volume 30, p.18, (2021)
Many forefront observatories are located in remote areas and are difficult to visit, and the global pandemic made visits even harder. Several virtual tours have been executed on YouTube or Facebook Live, however, it is difficult to feel a sense of im
Externí odkaz:
http://arxiv.org/abs/2208.10740
It has been reported that the extinction law for Type Ia Supernovae (SNe Ia) may be different from the one in the Milky Way, but the intrinsic color of SNe Ia and the dust extinction are observationally mixed. In this study, we examine photometric pr
Externí odkaz:
http://arxiv.org/abs/2101.02407
Autor:
Takanashi, Naohiro, Doi, Mamoru, Yasuda, Naoki, Kuncarayakti, Hanindyo, Konishi, Kohki, Schneider, Donald P., Cinabro, David, Marriner, John
We have analyzed multi-band light curves of 328 intermediate redshift (0.05 <= z < 0.24) type Ia supernovae (SNe Ia) observed by the Sloan Digital Sky Survey-II Supernova Survey (SDSS-II SN Survey). The multi-band light curves were parameterized by u
Externí odkaz:
http://arxiv.org/abs/1610.06396
Akademický článek
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Autor:
Okumura, Jun E., Ihara, Yutaka, Doi, Mamoru, Morokuma, Tomoki, Pain, Reynald, Totani, Tomonori, Barbary, Kyle, Takanashi, Naohiro, Yasuda, Naoki, Aldering, Greg, Dawson, Kyle, Goldhaber, Gerson, Hook, Isobel, Lidman, Chris, Perlmutter, Saul, Spadafora, Anthony, Suzuki, Nao, Wang, Lifan
We present measurements of the rates of high-redshift Type Ia supernovae derived from the Subaru/XMM-Newton Deep Survey (SXDS). We carried out repeat deep imaging observations with Suprime-Cam on the Subaru Telescope, and detected 1040 variable objec
Externí odkaz:
http://arxiv.org/abs/1401.7701
Autor:
Konishi, Kohki, Yasuda, Naoki, Tokita, Kouichi, Doi, Mamoru, Ihara, Yutaka, Morokuma, Tomoki, Takanashi, Naohiro, Nordin, Jakob, Marriner, John, Östman, Linda, Richmond, Michael, Sako, Masao, Schneider, Donald P., Wheeler, J. Craig
The Sloan Digital Sky Survey II (SDSS-II) Supernova Survey discovered Type Ia supernovae (SNe Ia) in an almost unexplored intermediate redshift range of $0.05 < z < 0.4$ and provided densely sampled multi-color light curves for SN candidates. Followu
Externí odkaz:
http://arxiv.org/abs/1101.1565
Autor:
Morokuma, Tomoki, Tokita, Kouichi, Lidman, Christopher, Doi, Mamoru, Yasuda, Naoki, Aldering, Greg, Amanullah, Rahman, Barbary, Kyle, Dawson, Kyle, Fadeyev, Vitaliy, Fakhouri, Hannah K., Goldhaber, Gerson, Goobar, Ariel, Hattori, Takashi, Hayano, Junji, Hook, Isobel M., Howell, D. Andrew, Furusawa, Hisanori, Ihara, Yutaka, Kashikawa, Nobunari, Knop, Rob A., Konishi, Kohki, Meyers, Joshua, Oda, Takeshi, Pain, Reynald, Perlmutter, Saul, Rubin, David, Spadafora, Anthony L., Suzuki, Nao, Takanashi, Naohiro, Totani, Tomonori, Utsunomiya, Hiroyuki, Wang, Lifan
We present spectra of high-redshift supernovae (SNe) that were taken with the Subaru low resolution optical spectrograph, FOCAS. These SNe were found in SN surveys with Suprime-Cam on Subaru, the CFH12k camera on the Canada-France-Hawaii Telescope (C
Externí odkaz:
http://arxiv.org/abs/0911.1258
Autor:
Holtzman, Jon A., Marriner, John, Kessler, Richard, Sako, Masao, Dilday, Ben, Frieman, Joshua A., Schneider, Donald P., Bassett, Bruce, Becker, Andrew, Cinabro, David, DeJongh, Fritz, Depoy, Darren L., Doi, Mamoru, Garnavich, Peter M., Hogan, Craig J., Jha, Saurabh, Konishi, Kohki, Lampeitl, Hubert, Marshall, Jennifer L., McGinnis, David, Miknaitis, Gajus, Nichol, Robert C., Prieto, Jose Luis, Reiss, Adam G., Richmond, Michael W., Romani, Roger, Smith, Mathew, Takanashi, Naohiro, Tokita, Kouichi, van der Heyden, Kurt, Yasuda, Naoki, Zheng, Chen
Publikováno v:
Astron.J.136:2306-2320,2008
We present ugriz light curves for 146 spectroscopically confirmed or spectroscopically probable Type Ia supernovae from the 2005 season of the SDSS-II Supernova survey. The light curves have been constructed using a photometric technique that we call
Externí odkaz:
http://arxiv.org/abs/0908.4277