Zobrazeno 1 - 10
of 458
pro vyhledávání: '"Toba, Yoshiki"'
Autor:
Gao, Zhen-Kai, Lim, Chen-Fatt, Wang, Wei-Hao, Chen, Chian-Chou, Smail, Ian, Chapman, Scott C., Zheng, Xian Zhong, Shim, Hyunjin, Kodama, Tadayuki, Ao, Yiping, Chang, Siou-Yu, Clements, David L., Dunlop, James S., Ho, Luis C., Hsu, Yun-Hsin, Hwang, Chorng-Yuan, Hwang, Ho Seong, Koprowski, M. P., Scott, Douglas, Serjeant, Stephen, Toba, Yoshiki, Urquhart, Sheona A.
We present confusion-limited SCUBA-2 450-$\mu$m observations in the COSMOS-CANDELS region as part of the JCMT Large Program, SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES). Our maps at 450 and 850 $\mu$m cover an area of 450 arcmin$^2$. We achieved
Externí odkaz:
http://arxiv.org/abs/2405.20616
Autor:
Izumi, Takuma, Matsuoka, Yoshiki, Onoue, Masafusa, Strauss, Michael A., Umehata, Hideki, Silverman, John D., Nagao, Tohru, Imanishi, Masatoshi, Kohno, Kotaro, Toba, Yoshiki, Iwasawa, Kazushi, Nakanishi, Kouichiro, Sawamura, Mahoshi, Fujimoto, Seiji, Kikuta, Satoshi, Kawaguchi, Toshihiro, Aoki, Kentaro, Goto, Tomotsugu
We present ALMA [CII] 158 $\mu$m line and underlying far-infrared continuum emission observations ($0''.57 \times 0''.46$ resolution) toward a quasar-quasar pair system recently discovered at $z = 6.05$ (Matsuoka et al. 2024). The quasar nuclei (C1 a
Externí odkaz:
http://arxiv.org/abs/2405.02468
Autor:
Matsuoka, Yoshiki, Izumi, Takuma, Onoue, Masafusa, Strauss, Michael A., Iwasawa, Kazushi, Kashikawa, Nobunari, Akiyama, Masayuki, Aoki, Kentaro, Arita, Junya, Imanishi, Masatoshi, Ishimoto, Rikako, Kawaguchi, Toshihiro, Kohno, Kotaro, Lee, Chien-Hsiu, Nagao, Tohru, Silverman, John D., Toba, Yoshiki
Publikováno v:
The Astrophysical Journal Letters, Volume 965, Issue 1, id.L4, 8 pp (2024)
We report the discovery of two quasars at a redshift of $z$ = 6.05, in the process of merging. They were serendipitously discovered from the deep multi-band imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The qu
Externí odkaz:
http://arxiv.org/abs/2405.02465
Autor:
Shibuya, Takatoshi, Ito, Yohito, Asai, Kenta, Kirihara, Takanobu, Fujimoto, Seiji, Toba, Yoshiki, Miura, Noriaki, Umayahara, Takuya, Iwadate, Kenji, Ali, Sadman S., Kodama, Tadayuki
We super-resolve the seeing-limited Subaru Hyper Suprime-Cam (HSC) images for 32,187 galaxies at z~2-5 in three techniques, namely, the classical Richardson-Lucy (RL) point spread function (PSF) deconvolution, sparse modeling, and generative adversar
Externí odkaz:
http://arxiv.org/abs/2403.06729
Autor:
Vijarnwannaluk, Bovornpratch, Akiyama, Masayuki, Schramm, Malte, Ueda, Yoshihiro, Matsuoka, Yoshiki, Toba, Yoshiki, Matsumoto, Naoki, Ruiz, Angel, Georgantopoulos, Ioannis, Pouliasis, Ektoras, Koulouridis, Elias, Ichikawa, Kohei, Sawicki, Marcin, Gwyn, Stephen
We investigated the gas obscuration and host galaxy properties of active galactic nuclei (AGN) during the peak of cosmic accretion growth of supermassive black holes (SMBHs) at redshift 0.8-1.8 using X-ray detected AGN with mid-infrared and far-infra
Externí odkaz:
http://arxiv.org/abs/2403.06409
Autor:
Toba, Yoshiki, Hashiguchi, Aoi, Ota, Naomi, Oguri, Masamune, Okabe, Nobuhiro, Ueda, Yoshihiro, Imanishi, Masatoshi, Nishizawa, Atsushi J., Goto, Tomotsugu, Hsieh, Bau-Ching, Kondo, Marie, Koyama, Shuhei, Lee, Kianhong, Mitsuishi, Ikuyuki, Nagao, Tohru, Oogi, Taira, Sakuta, Koki, Schramm, Malte, Yanagawa, Anri, Yoshimoto, Anje
Herein, we present the statistical properties of active galactic nuclei (AGNs) for approximately 1 million member galaxies of galaxy groups and clusters, with 0.1 $<$ cluster redshift ($z_{\rm cl}$) $<$ 1.4, selected using Subaru Hyper Suprime-Cam, t
Externí odkaz:
http://arxiv.org/abs/2402.11188
Autor:
Yamada, Satoshi, Ueda, Yoshihiro, Kawamuro, Taiki, Ricci, Claudio, Toba, Yoshiki, Imanishi, Masatoshi, Miyaji, Takamitsu, Tanimoto, Atsushi, Ichikawa, Kohei, Herrera-Endoqui, Martin, Ogawa, Shoji, Uematsu, Ryosuke, Wada, Keiichi
We study "buried" active galactic nuclei (AGNs) almost fully covered by circumnuclear material in ultra-/luminous infrared galaxies (U/LIRGs), which show weak ionized lines from narrow line regions. Employing an indicator of [O IV] 25.89-um or [Ne V]
Externí odkaz:
http://arxiv.org/abs/2402.05992
Autor:
Uematsu, Ryosuke, Ueda, Yoshihiro, Kohno, Kotaro, Toba, Yoshiki, Yamada, Satoshi, Smail, Ian, Umehata, Hideki, Fujimoto, Seiji, Hatsukade, Bunyo, Ao, Yiping, Bauer, Franz Erik, Brammer, Gabriel, Dessauges-Zavadsky, Miroslava, Espada, Daniel, Jolly, Jean-Baptiste, Koekemoer, Anton M., Kokorev, Vasily, Magdis, Georgios E., Oguri, Masamune, Sun, Fengwu
Sub/millimeter galaxies are a key population for the study of galaxy evolution because the majority of star formation at high redshifts occurred in galaxies deeply embedded in dust. To search for this population, we have performed an extensive survey
Externí odkaz:
http://arxiv.org/abs/2402.05849
Autor:
Musiimenta, Blessing, Speranza, Giovanna, Urrutia, Tanya, Brusa, Marcella, Almeida, Cristina Ramos, Perna, Michele, López, Ivàn Ezequiel, Alexander, David M., Laloux, Brivael, Shankar, Francesco, Lapi, Andrea, Salvato, Mara, Toba, Yoshiki, Andonie, Carolina, Rodríguez, Ivàn Munoz
Evolutionary models suggest that the initial growth phases of active galactic nuclei (AGN) are dust-enshrouded, and characterised by jet/wind outflows that should gradually clear the interstellar medium (ISM) in the host by heating and/or expelling t
Externí odkaz:
http://arxiv.org/abs/2401.17299
Autor:
Greenwell, Claire, Gandhi, Poshak, Stern, Daniel, Lansbury, George, Mainieri, Vincenzo, Boorman, Peter, Toba, Yoshiki
The growth of active galactic nuclei (AGN) occurs under some form of obscuration in a large fraction of the population. The difficulty in constraining this population leads to high uncertainties in cosmic X-ray background and galaxy evolution models.
Externí odkaz:
http://arxiv.org/abs/2401.01937