Zobrazeno 1 - 10
of 1 619
pro vyhledávání: '"Okamoto, Takashi"'
Publikováno v:
MNRAS, 531, 851 (2024)
We have investigated the redshift evolution of the relationship between supermassive black hole (SMBH) mass and host bulge mass using a semi-analytical galaxy formation model $\nu^2$GC. Our model reproduces the relation in the local universe well. We
Externí odkaz:
http://arxiv.org/abs/2405.07461
Publikováno v:
MNRAS, 527, 10077 (2024)
Cloud-cloud collisions (CCCs) are expected to compress gas and trigger star formation. However, it is not well understood how the collisions and the induced star formation affect galactic-scale properties. By developing an on-the-fly algorithm to ide
Externí odkaz:
http://arxiv.org/abs/2311.04175
Different mechanisms driving bar structure formation indicate that bar origins should be distinguishable in the stellar populations of galaxies. To study how these origins affect different bar morphologies and impact stellar orbits and migration, we
Externí odkaz:
http://arxiv.org/abs/2310.07011
Autor:
Tamura, Yoichi, Bakx, Tom J. L. C., Inoue, Akio K., Hashimoto, Takuya, Tokuoka, Tsuyoshi, Imamura, Chihiro, Hatsukade, Bunyo, Lee, Minju M., Moriwaki, Kana, Okamoto, Takashi, Ota, Kazuaki, Umehata, Hideki, Yoshida, Naoki, Zackrisson, Erik, Hagimoto, Masato, Matsuo, Hiroshi, Shimizu, Ikkoh, Sugahara, Yuma, Takeuchi, Tsutomu T.
We present the results of 300 pc resolution ALMA imaging of the [OIII] 88 $\mu$m line and dust continuum emission from a $z = 8.312$ Lyman break galaxy MACS0416_Y1. The velocity-integrated [OIII] emission has three peaks which are likely associated w
Externí odkaz:
http://arxiv.org/abs/2303.11539
Autor:
Ren, Yi W., Fudamoto, Yoshinobu, Inoue, Akio K., Sugahara, Yuma, Tokuoka, Tsuyoshi, Tamura, Yoichi, Matsuo, Hiroshi, Kohno, Kotaro, Umehata, Hideki, Hashimoto, Takuya, Bouwens, Rychard J., Smit, Renske, Kashikawa, Nobunari, Okamoto, Takashi, Shibuya, Takatoshi, Shimizu, Ikkoh
We present updated measurements of the [O III] 88 $\mu$m, [C II] 158 $\mu$m, and dust continuum emission from a star-forming galaxy at $z=7.212$, SXDF-NB1006-2, by utilizing Atacama Large Millimeter/submillimeter Array (ALMA) archival data sets analy
Externí odkaz:
http://arxiv.org/abs/2302.02365
Autor:
Morokuma-Matsui, Kana, Bekki, Kenji, Wang, Jing, Serra, Paolo, Koyama, Yusei, Morokuma, Tomoki, Egusa, Fumi, For, Bi-Qing, Nakanishi, Kouichiro, Koribalski, Bäbel S., Okamoto, Takashi, Kodama, Tadayuki, Lee, Bumhyun, Maccagni, Filippo M., Miura, Rie E., Espada, Daniel, Takeuchi, Tsutomu T., Yang, Dong, Lee, Minju M., Ueda, Masaki, Matsushita, Kyoko
We conduct a $^{12}$C$^{16}$O($J$=1-0) (hereafter CO) mapping survey of 64 galaxies in the Fornax cluster using the ALMA Morita array in cycle 5. CO emission is detected from 23 out of the 64 galaxies. Our sample includes dwarf, spiral and elliptical
Externí odkaz:
http://arxiv.org/abs/2210.08699
This paper is concerned with H2 control of discrete-time linear systems with dynamics determined by an independent and identically distributed (i.i.d.) process. A definition of H2 norm is first discussed for the class of systems. Then, a linear matri
Externí odkaz:
http://arxiv.org/abs/2209.03606
Autor:
Nashimoto, Masashi, Tanaka, Masayuki, Chiba, Masashi, Hayashi, Kohei, Komiyama, Yutaka, Okamoto, Takashi
We present a new observation of satellite galaxies around seven Milky Way (MW)-like galaxies located outside of the Local Group (LG) using Subaru/Hyper Suprime-Cam imaging data to statistically address the missing satellite problem. We select satelli
Externí odkaz:
http://arxiv.org/abs/2207.11992
We explore the capability of deep learning to classify cosmic structures. In cosmological simulations, cosmic volumes are segmented into voids, sheets, filaments and knots, according to the distribution and kinematics of dark matter (DM), and galaxie
Externí odkaz:
http://arxiv.org/abs/2207.09072
Autor:
Hirai, Yutaka, Beers, Timothy C., Chiba, Masashi, Aoki, Wako, Shank, Derek, Saitoh, Takayuki R., Okamoto, Takashi, Makino, Junichiro
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 517, Issue 4, December 2022, Pages 4856-4874
The $r$-process-enhanced (RPE) stars provide fossil records of the assembly history of the Milky Way and the nucleosynthesis of the heaviest elements. Observations by the $R$-Process Alliance (RPA) and others have confirmed that many RPE stars are as
Externí odkaz:
http://arxiv.org/abs/2206.04060