Zobrazeno 1 - 10
of 632
pro vyhledávání: '"Kobayashi Chiaki"'
Autor:
Bosomworth, Chloe, Forbrich, Jan, Lada, Charles J., Caldwell, Nelson, Kobayashi, Chiaki, Viaene, Sébastien
From a spectroscopic survey of candidate H II regions in the Andromeda galaxy (M31) with MMT/Hectospec, we have identified 294 H II regions using emission line ratios and calculated elemental abundances from strong-line diagnostics (values ranging fr
Externí odkaz:
http://arxiv.org/abs/2412.16069
Galaxy chemical enrichment mechanisms have primarily been constrained by [$\alpha$/Fe] and [Fe/H] measurements of individual stars and integrated light from stellar populations. However such measurements are limited at higher redshifts (z>1). Recentl
Externí odkaz:
http://arxiv.org/abs/2408.13396
Autor:
Curti, Mirko, Witstok, Joris, Jakobsen, Peter, Kobayashi, Chiaki, Curtis-Lake, Emma, Hainline, Kevin, Ji, Xihan, D'Eugenio, Francesco, Chevallard, Jacopo, Maiolino, Roberto, Scholtz, Jan, Carniani, Stefano, Arribas, Santiago, Baker, William M., Bhatawdekar, Rachana, Boyett, Kristan, Bunker, Andrew J., Cameron, Alex, Cargile, Phillip A., Charlot, Stephane, Eisenstein, Daniel J., Ji, Zhiyuan, Johnson, Benjamin D., Kumari, Nimisha, Maseda, Michael V., Robertson, Brant, Silcock, Maddie S., Tacchella, Sandro, Ubler, Hannah, Venturi, Giacomo, Williams, Christina C., Willmer, Christopher N. A., Willott, Chris
We analyse ultra-deep JWST observations of the galaxy JADES-GS-z9-0 at z = 9.4327, and derive detailed stellar and interstellar medium (ISM) properties of this luminous (MUV=-20.43) high-redshift system. Complementary information from NIRCam imaging
Externí odkaz:
http://arxiv.org/abs/2407.02575
Autor:
Hough, Renier T., Shao, Zhiwei, Cui, Weiguang, Loubser, S. Ilani, Babul, Arif, Davé, Romeel, Rennehan, Douglas, Kobayashi, Chiaki
The newly updated \texttt{GIZMO} and \texttt{Simba} based simulation, \texttt{Simba-C}, with its new stellar feedback, chemical enrichment, and recalibrated AGN feedback, allows for a detailed study of the intragroup medium X-ray properties. We discu
Externí odkaz:
http://arxiv.org/abs/2406.04761
Edge-on galaxies act as the best laboratories to understand the origin of thin and thick discs in galaxies. Measurement of spatially resolved stellar population properties in such galaxies, particularly age, metallicity and [$\alpha$/Fe], are crucial
Externí odkaz:
http://arxiv.org/abs/2405.17999
Autor:
Ajith, Parameswaran, Seoane, Pau Amaro, Sedda, Manuel Arca, Arcodia, Riccardo, Badaracco, Francesca, Banerjee, Biswajit, Belgacem, Enis, Benetti, Giovanni, Benetti, Stefano, Bobrick, Alexey, Bonforte, Alessandro, Bortolas, Elisa, Braito, Valentina, Branchesi, Marica, Burrows, Adam, Cappellaro, Enrico, Della Ceca, Roberto, Chakraborty, Chandrachur, Subrahmanya, Shreevathsa Chalathadka, Coughlin, Michael W., Covino, Stefano, Derdzinski, Andrea, Doshi, Aayushi, Falanga, Maurizio, Foffa, Stefano, Franchini, Alessia, Frigeri, Alessandro, Futaana, Yoshifumi, Gerberding, Oliver, Gill, Kiranjyot, Di Giovanni, Matteo, Giudice, Ines Francesca, Giustini, Margherita, Gläser, Philipp, Harms, Jan, van Heijningen, Joris, Iacovelli, Francesco, Kavanagh, Bradley J., Kawamura, Taichi, Kenath, Arun, Keppler, Elisabeth-Adelheid, Kobayashi, Chiaki, Komatsu, Goro, Korol, Valeriya, Krishnendu, N. V., Kumar, Prayush, Longo, Francesco, Maggiore, Michele, Mancarella, Michele, Maselli, Andrea, Mastrobuono-Battisti, Alessandra, Mazzarini, Francesco, Melandri, Andrea, Melini, Daniele, Menina, Sabrina, Miniutti, Giovanni, Mitra, Deeshani, Morán-Fraile, Javier, Mukherjee, Suvodip, Muttoni, Niccolò, Olivieri, Marco, Onori, Francesca, Papa, Maria Alessandra, Patat, Ferdinando, Perali, Andrea, Piran, Tsvi, Piranomonte, Silvia, Pol, Alberto Roper, Pookkillath, Masroor C., Prasad, R., Prasad, Vaishak, De Rosa, Alessandra, Chowdhury, Sourav Roy, Serafinelli, Roberto, Sesana, Alberto, Severgnini, Paola, Stallone, Angela, Tissino, Jacopo, Tkalčić, Hrvoje, Tomasella, Lina, Toscani, Martina, Vartanyan, David, Vignali, Cristian, Zaccarelli, Lucia, Zeoli, Morgane, Zuccarello, Luciano
The Lunar Gravitational-wave Antenna (LGWA) is a proposed array of next-generation inertial sensors to monitor the response of the Moon to gravitational waves (GWs). Given the size of the Moon and the expected noise produced by the lunar seismic back
Externí odkaz:
http://arxiv.org/abs/2404.09181
An outstanding question is whether the $\alpha$/Fe bimodality exists in disk galaxies other than in the Milky Way. Here we present a bimodality using our state-of-the-art galactic chemical evolution models that can explain various observations in the
Externí odkaz:
http://arxiv.org/abs/2309.01707
Autor:
Kobayashi, Chiaki, Ferrara, Andrea
We interpret the peculiar super-solar nitrogen abundance recently reported by the James Webb Space Telescope observations for GN-z11 ($z=10.6$) using our state-of-the-art chemical evolution models. The observed CNO ratios can be successfully reproduc
Externí odkaz:
http://arxiv.org/abs/2308.15583
Autor:
Hough, Renier T., Rennehan, Douglas, Kobayashi, Chiaki, Loubser, S. Ilani, Davé, Romeel, Babul, Arif, Cui, Weiguang
We introduce a new chemical enrichment and stellar feedback model into GIZMO, using the SIMBA sub-grid models as a base. Based on the state-of-the-art chemical evolution model of Kobayashi et al., SIMBA-C tracks 34 elements from H$\rightarrow$Ge and
Externí odkaz:
http://arxiv.org/abs/2308.03436
Autor:
Ibrahim, Dyna, Kobayashi, Chiaki
Metallicity is a fundamental physical property that strongly constrains galaxy formation and evolution. The formation of stars in galaxies is suppressed by the energy released from supernova explosions and can be enhanced by metal production. In orde
Externí odkaz:
http://arxiv.org/abs/2307.11595