Zobrazeno 1 - 10
of 495
pro vyhledávání: '"Nagamine, Kentaro"'
High-redshift ($z\sim2-3$) galaxies accrete circumgalactic gas through cold streams. Recent high-resolution MHD simulations of these streams showed a significant amplification of the intergalactic magnetic field in the shear layer around them. In thi
Externí odkaz:
http://arxiv.org/abs/2408.17438
Autor:
Chastenet, Jérémy, De Looze, Ilse, Relaño, Monica, Dale, Daniel A., Williams, Thomas G., Bianchi, Simone, Xilouris, Emmanuel M., Baes, Maarten, Bolatto, Alberto D., Boyer, Martha L., Casasola, Viviana, Clark, Christopher J. R., Fraternali, Filippo, Fritz, Jacopo, Galliano, Frédéric, Glover, Simon C. O., Gordon, Karl D., Hirashita, Hiroyuki, Kennicutt, Robert, Nagamine, Kentaro, Kirchschlager, Florian, Klessen, Ralf S., Koch, Eric W., Levy, Rebecca C., McCallum, Lewis, Madden, Suzanne C., McLeod, Anna F., Meidt, Sharon E., Mosenkov, Aleksandr V., Richie, Helena M., Saintonge, Amélie, Sandstrom, Karin M., Schneider, Evan E., Sivkova, Evgenia E., Smith, J. D. T., Smith, Matthew W. L., van der Wel, Arjen, Walch, Stefanie, Walter, Fabian, Wood, Kenneth
We present new JWST observations of the nearby, prototypical edge-on, spiral galaxy NGC 891. The northern half of the disk was observed with NIRCam in its F150W and F277W filters. Absorption is clearly visible in the mid-plane of the F150W image, alo
Externí odkaz:
http://arxiv.org/abs/2408.08026
Autor:
Roca-Fàbrega, Santi, Kim, Ji-hoon, Primack, Joel R., Genina, Anna, Jung, Minyong, Lupi, Alessandro, Nagamine, Kentaro, Powell, Johnny W., Quinn, Thomas R., Revaz, Yves, Shimizu, Ikkoh, Velázquez, Héctor, Collaboration, the AGORA
The AGORA Cosmorun (arXiv:2106.09738) is a set of hydrodynamical cosmological zoom-in simulations carried out within the AGORA High-resolution Galaxy Simulations Comparison Project (arXiv:1308.2669,arXiv:1610.03066). These simulations show the format
Externí odkaz:
http://arxiv.org/abs/2408.00432
We present the first measurement of the Ly$\alpha$ forest BAO shift parameter from cosmological simulations. In particular, we generate a suite of $1000$ accurate effective field-level bias-based Ly$\alpha$ forest simulations of volume $V=(1 \, h^{-1
Externí odkaz:
http://arxiv.org/abs/2407.03918
Autor:
Yanagisawa, Hiroto, Ouchi, Masami, Watanabe, Kuria, Matsumoto, Akinori, Nakajima, Kimihiko, Yajima, Hidenobu, Nagamine, Kentaro, Takahashi, Koh, Nakane, Minami, Tominaga, Nozomu, Umeda, Hiroya, Fukushima, Hajime, Harikane, Yuichi, Isobe, Yuki, Ono, Yoshiaki, Xu, Yi, Zhang, Yechi
We present HeI/H$\beta$-flux and He/H-abundance ratios in three JWST galaxies with significant constraints on N/O-abundance ratios, GS-NDG-9422, RXCJ2248-ID, and GLASS150008 at $z\sim 6$ mostly with the spectroscopic coverage from HeI$\lambda$4471 an
Externí odkaz:
http://arxiv.org/abs/2405.01823
Autor:
Liang, Yongming, Ouchi, Masami, Sun, Dongsheng, Kashikawa, Nobunari, Cai, Zheng, Cantalupo, Sebastiano, Nagamine, Kentaro, Yajima, Hidenobu, Kirihara, Takanobu, Zhang, Haibin, Li, Mingyu, Shimakawa, Rhythm, Fan, Xiaohui, Ito, Kei, Tanaka, Masayuki, Harikane, Yuichi, Prochaska, J. Xavier, Travascio, Andrea, Wang, Weichen, Elvis, Martin, Fabbiano, Giuseppina, Arita, Junya, Onoue, Masafusa, Silverman, John D., Shi, Dongdong, An, FangXia, Izumi, Takuma, Shimasaku, Kazuhiro, Uchiyama, Hisakazu, Zhu, Chenghao
We report the identification of a quasar overdensity in the BOSSJ0210 field, dubbed Cosmic Himalayas, consisting of 11 quasars at $z=2.16-2.20$, the densest overdensity of quasars ($17\sigma$) in the $\sim$10,000 deg$^2$ of the Sloan Digital Sky Surv
Externí odkaz:
http://arxiv.org/abs/2404.15963
We apply the convolutional neural networks (CNNs) to the mock 21cm maps from the post-reionization epoch to show that the $\Lambda$ cold dark matter and warm dark matter (WDM) model can be distinguished for WDM particle masses $m_{FD}<3$\,keV, under
Externí odkaz:
http://arxiv.org/abs/2403.06203
Autor:
Roca-Fàbrega, Santi, Kim, Ji-hoon, Primack, Joel R., Jung, Minyong, Genina, Anna, Hausammann, Loic, Kim, Hyeonyong, Lupi, Alessandro, Nagamine, Kentaro, Powell, Johnny W., Revaz, Yves, Shimizu, Ikkoh, Strawn, Clayton, Velázquez, Héctor, Abel, Tom, Ceverino, Daniel, Dong, Bili, Quinn, Thomas R., Shin, Eun-jin, Segovia-Otero, Alvaro, Agertz, Oscar, Barrow, Kirk S. S., Cadiou, Corentin, Dekel, Avishai, Hummels, Cameron, Oh, Boon Kiat, Teyssier, Romain, Collaboration, The Agora
In this fourth paper from the AGORA Collaboration, we study the evolution down to redshift $z=2$ and below of a set of cosmological zoom-in simulations of a Milky Way mass galaxy by eight of the leading hydrodynamic simulation codes. We also compare
Externí odkaz:
http://arxiv.org/abs/2402.06202
Autor:
Jung, Minyong, Roca-Fàbrega, Santi, Kim, Ji-hoon, Genina, Anna, Hausammann, Loic, Kim, Hyeonyong, Lupi, Alessandro, Nagamine, Kentaro, Powell, Johnny W., Revaz, Yves, Shimizu, Ikkoh, Velázquez, Héctor, Ceverino, Daniel, Primack, Joel R., Quinn, Thomas R., Strawn, Clayton, Abel, Tom, Dekel, Avishai, Dong, Bili, Oh, Boon Kiat, Teyssier, Romain
Publikováno v:
ApJ 964 123 (2024)
We analyze and compare the satellite halo populations at $z\sim2$ in the high-resolution cosmological zoom-in simulations of a $10^{12}\,{\rm M}_{\odot}$ target halo ($z=0$ mass) carried out on eight widely-used astrophysical simulation codes ({\sc A
Externí odkaz:
http://arxiv.org/abs/2402.05392
Autor:
Strawn, Clayton, Roca-Fàbrega, Santi, Primack, Joel R., Kim, Ji-hoon, Genina, Anna, Hausammann, Loic, Kim, Hyeonyong, Lupi, Alessandro, Nagamine, Kentaro, Powell, Johnny W., Revaz, Yves, Shimizu, Ikkoh, Velázquez, Héctor, Abel, Tom, Ceverino, Daniel, Dong, Bili, Jung, Minyong, Quinn, Thomas R., Shin, Eun-jin, Barrow, Kirk S. S., Dekel, Avishai, Oh, Boon Kiat, Mandelker, Nir, Teyssier, Romain, Hummels, Cameron, Maji, Soumily, Man, Antonio, Mayerhofer, Paul, Collaboration, AGORA
Publikováno v:
ApJ 962 29 (2024)
We analyze the circumgalactic medium (CGM) for eight commonly-used cosmological codes in the AGORA collaboration. The codes are calibrated to use identical initial conditions, cosmology, heating and cooling, and star formation thresholds, but each ev
Externí odkaz:
http://arxiv.org/abs/2402.05246