JWST Identification of Extremely Low C/N Galaxies with [N/O] ≳ 0.5 at z 6-10 Evidencing the Early CNO-cycle Enrichment and a Connection with Globular Cluster Formation

Isobe, Yuki,   Ouchi, Masami,   Tominaga, Nozomu,   Watanabe, Kuria,   Nakajima, Kimihiko,   Umeda, Hiroya

We present chemical abundance ratios of 70 star-forming galaxies at z ~ 4-10 observed by the JWST/NIRSpec Early Release Observations, GLASS, and CEERS programs. Among the 70 galaxies, we have pinpointed two galaxies, CEERS_01019 at z = 8.68 and GLASS...

Transonic galactic wind model including stellar feedbacks and application to outflows in high/low-z galaxies

Igarashi, Asuka,   Mori, Masao,   Nitta, Shin-ya

Galactic winds play a crucial role in the ejection of the interstellar medium (ISM) into intergalactic space. This study presents a model that classifies possible transonic solutions of galactic winds in the gravitational potential of the dark matter...

Frequency of the dark matter subhalo collisions and bifurcation sequence arising formation of dwarf galaxies

Otaki, Koki,   Mori, Masao

The cold dark matter model predicts galaxies have 100 times more dark matter mass than stars. Nevertheless, recent observations report the existence of dark-matter-deficient galaxies with less dark matter than expected. To solve this problem, we inve...

FOREVER22: Gas and metal outflow from massive galaxies in protocluster regions

Harada, Naoki,   Yajima, Hidenobu,   Abe, Makito

We study gas and metal outflow from massive galaxies in protocluster regions at z = 3 - 9 by using the results of FOREVER22 simulation projects. Our simulations contain massive haloes with Mhrsim1013 M⊙, showing high star formation rates of > 100 ...

Generation of high circular polarization of interstellar Lyman α radiation triggering biological homochirality

Fukushima, Hajime,   Yajima, Hidenobu,   Umemura, Masayuki

The homochirality of biological molecules on Earth is a long-standing mystery regarding the origin of life. Circularly polarized ultraviolet (UV) light could induce the enantiomeric excess of biological molecules in the interstellar medium, leading t...

The formation of globular clusters with top-heavy initial mass functions

Fukushima, Hajime,   Yajima, Hidenobu

We study the formation of globular clusters (GCs) in massive compact clouds with the low metallicity of Z = 10-3 Z⊙byperformingthree-dimensionalradiative- hydrodynamicsimulations.Consideringtheuncertaintyoftheinitialmassfunction(IMF)ofstarsformedinlo...

Precessing jet nozzle connecting to a spinning black hole in M87

Cui, Yuzhu,   Hada, Kazuhiro,   Kawashima, Tomohisa,   Kino, Motoki,   Lin, Weikang,   Mizuno, Yosuke

The nearby radio galaxy M87 offers a unique opportunity to explore the connections between the central supermassive black hole and relativistic jets. Previous studies of the inner region of M87 revealed a wide opening angle for the jet originating ne...

FOREVER22: The first bright galaxies with population III stars at redshifts z ≈ 10-20 and comparisons with JWST data

Yajima, Hidenobu,   Abe, Makito,   Fukushima, Hajime,   Ono, Yoshiaki,   Harikane, Yuichi,   Ouchi, Masami

We study the formation of the first galaxies in overdense regions modelled by the FOREVER22 simulation project. Our simulations successfully reproduce the star formation rates and the MUV - Mstar relations of candidate galaxies at z ~ 10 - 14 observe...

Cosmological-scale Lyα Forest Absorption around Galaxies and AGNs Probed with the HETDEX and SDSS Spectroscopic Data

Sun, Dongsheng,   Mawatari, Ken,   Ouchi, Masami,   Ono, Yoshiaki,   Yajima, Hidenobu,   Zhang, Yechi

We present cosmological-scale three-dimensional neutral hydrogen (H I) tomographic maps at z = 2-3 over a total of 837 deg2 in two blank fields that are developed with Lyα forest absorptions of 14,736 background Sloan Digital Sky Survey (SDSS) quasar...

Morphologies of Galaxies at z ≳ 9 Uncovered by JWST/NIRCam Imaging: Cosmic Size Evolution and an Identification of an Extremely Compact Bright Galaxy at z 12

Ono, Yoshiaki,   Harikane, Yuichi,   Ouchi, Masami,   Yajima, Hidenobu,   Abe, Makito,   Isobe, Yuki

We present morphologies of galaxies at z ≳ 9 resolved by JWST/NIRCam 2-5 μm imaging. Our sample consists of 22 galaxy candidates identified by stringent dropout and photo-z criteria in GLASS, CEERS, SMACS J0723, and Stephan’s Quintet flanking fields,...

EMPRESS. XI. SDSS and JWST Search for Local and z 4-5 Extremely Metal-poor Galaxies (EMPGs): Clustering and Chemical Properties of Local EMPGs

Nishigaki, Moka,   Ouchi, Masami,   Nakajima, Kimihiko,   Ono, Yoshiaki,   Rauch, Michael,   Isobe, Yuki

We search for local extremely metal-poor galaxies (EMPGs), selecting photometric candidates by broadband color excess and machine- learning techniques with the SDSS photometric data. After removing stellar contaminants by shallow spectroscopy with Se...

EMPRESS. IX. Extremely Metal-poor Galaxies are Very Gas-rich Dispersion-dominated Systems: Will the James Webb Space Telescope Witness Gaseous Turbulent High-z Primordial Galaxies?

Isobe, Yuki,   Ouchi, Masami,   Nakajima, Kimihiko,   Ozaki, Shinobu,   Bouché, Nicolas F.,   Wise, John H.

We present kinematics of six local extremely metal-poor galaxies (EMPGs) with low metallicities (0.016-0.098 Z ⊙)andlowstellarmasses(10^4.7-10^7.6M_⊙).Takingdeepmedium∕high-resolution(R~ 7500) integral-field spectra with 8.2 m Subaru, we resolve the ...

Modeling of Thermal Emission from ULX Pulsar Swift J0243.6+6124 with General Relativistic Radiation MHD Simulations

Inoue, Akihiro,   Ohsuga, Ken,   Takahashi, Hiroyuki R.,   Asahina, Yuta

We perform general relativistic radiation magnetohydrodynamics simulations of super-Eddington accretion flows around a neutron star with a dipole magnetic field for modeling the Galactic ultraluminous X-ray source exhibiting X-ray pulsations, Swift J...

An Unbiased CO Survey Toward the Northern Region of the Small Magellanic Cloud with the Atacama Compact Array. II. CO Cloud Catalog

Ohno, Takahiro,   Tokuda, Kazuki,   Konishi, Ayu,   Matsumoto, Takeru,   Sewiło, Marta,   Kondo, Hiroshi

The nature of molecular clouds and their statistical behavior in subsolar metallicity environments are not fully explored yet. We analyzed data from an unbiased CO (J = 2-1) survey at the spatial resolution of ~ 2 pc in the northern region of the Sma...

3D Radiation-hydrodynamic Simulations Resolving Interior of Rapidly Accreting Primordial Protostar

Kimura, Kazutaka,   Hosokawa, Takashi,   Sugimura, Kazuyuki,   Fukushima, Hajime

Direct collapse of supermassive stars is a possible pathway to form supermassive black hole seeds at high redshifts. Whereas previous three-dimensional (3D) simulations demonstrate that supermassive stars form via rapid mass accretion, those resolvin...

RAIKOU (): A General Relativistic, Multiwavelength Radiative Transfer Code

Kawashima, Tomohisa,   Ohsuga, Ken,   Takahashi, Hiroyuki R.

We present a general relativistic radiative transfer code RAIKOU () for multiwavlength studies of spectra and images including the black hole shadows around Kerr black holes. Important radiative processes in hot plasmas around black holes, i.e., (cyc...

Detections of [C II] 158 μm and [O III] 88 μm in a Local Lyman Continuum Emitter, Mrk 54, and Its Implications to High-redshift ALMA Studies

Ura, Ryota,   Hashimoto, Takuya,   Inoue, Akio K.,   Fadda, Dario,   Hayes, Matthew,   Puschnig, Johannes

We present integral field, far-infrared (FIR) spectroscopy of Mrk 54, a local Lyman continuum emitter, obtained with FIFI-LS on the Stratospheric Observatory for Infrared Astronomy. This is only the second time, after Haro 11, that [C II] 158 μm and ...

UV and Lyα Halos of Lyα Emitters across Environments at z = 2.84

Kikuta, Satoshi,   Matsuda, Yuichi,   Inoue, Shigeki,   Steidel, Charles C.,   Cen, Renyue,   Zheng, Zheng

We present UV and Lyα radial surface brightness (SB) profiles of Lyα emitters (LAEs) at z = 2.84 detected with the Hyper Suprime-Cam on the Subaru Telescope. The depth of our data, together with the wide-field coverage including a protocluster, enabl...

JWST Identification of Extremely Low C/N Galaxies with [N/O] ≳ 0.5 at z 6-10 Evidencing the Early CNO-cycle Enrichment and a Connection with Globular Cluster Formation

Isobe, Yuki,   Ouchi, Masami,   Tominaga, Nozomu,   Watanabe, Kuria,   Nakajima, Kimihiko,   Umeda, Hiroya

Transonic galactic wind model including stellar feedbacks and application to outflows in high/low-z galaxies

Igarashi, Asuka,   Mori, Masao,   Nitta, Shin-ya

Frequency of the dark matter subhalo collisions and bifurcation sequence arising formation of dwarf galaxies

Otaki, Koki,   Mori, Masao

FOREVER22: Gas and metal outflow from massive galaxies in protocluster regions

Harada, Naoki,   Yajima, Hidenobu,   Abe, Makito

Generation of high circular polarization of interstellar Lyman α radiation triggering biological homochirality

Fukushima, Hajime,   Yajima, Hidenobu,   Umemura, Masayuki

The formation of globular clusters with top-heavy initial mass functions

Fukushima, Hajime,   Yajima, Hidenobu

Precessing jet nozzle connecting to a spinning black hole in M87

Cui, Yuzhu,   Hada, Kazuhiro,   Kawashima, Tomohisa,   Kino, Motoki,   Lin, Weikang,   Mizuno, Yosuke

FOREVER22: The first bright galaxies with population III stars at redshifts z ≈ 10-20 and comparisons with JWST data

Yajima, Hidenobu,   Abe, Makito,   Fukushima, Hajime,   Ono, Yoshiaki,   Harikane, Yuichi,   Ouchi, Masami

Cosmological-scale Lyα Forest Absorption around Galaxies and AGNs Probed with the HETDEX and SDSS Spectroscopic Data

Sun, Dongsheng,   Mawatari, Ken,   Ouchi, Masami,   Ono, Yoshiaki,   Yajima, Hidenobu,   Zhang, Yechi

Morphologies of Galaxies at z ≳ 9 Uncovered by JWST/NIRCam Imaging: Cosmic Size Evolution and an Identification of an Extremely Compact Bright Galaxy at z 12

Ono, Yoshiaki,   Harikane, Yuichi,   Ouchi, Masami,   Yajima, Hidenobu,   Abe, Makito,   Isobe, Yuki

EMPRESS. XI. SDSS and JWST Search for Local and z 4-5 Extremely Metal-poor Galaxies (EMPGs): Clustering and Chemical Properties of Local EMPGs

Nishigaki, Moka,   Ouchi, Masami,   Nakajima, Kimihiko,   Ono, Yoshiaki,   Rauch, Michael,   Isobe, Yuki

EMPRESS. IX. Extremely Metal-poor Galaxies are Very Gas-rich Dispersion-dominated Systems: Will the James Webb Space Telescope Witness Gaseous Turbulent High-z Primordial Galaxies?

Isobe, Yuki,   Ouchi, Masami,   Nakajima, Kimihiko,   Ozaki, Shinobu,   Bouché, Nicolas F.,   Wise, John H.

Modeling of Thermal Emission from ULX Pulsar Swift J0243.6+6124 with General Relativistic Radiation MHD Simulations

Inoue, Akihiro,   Ohsuga, Ken,   Takahashi, Hiroyuki R.,   Asahina, Yuta

An Unbiased CO Survey Toward the Northern Region of the Small Magellanic Cloud with the Atacama Compact Array. II. CO Cloud Catalog

Ohno, Takahiro,   Tokuda, Kazuki,   Konishi, Ayu,   Matsumoto, Takeru,   Sewiło, Marta,   Kondo, Hiroshi

3D Radiation-hydrodynamic Simulations Resolving Interior of Rapidly Accreting Primordial Protostar

Kimura, Kazutaka,   Hosokawa, Takashi,   Sugimura, Kazuyuki,   Fukushima, Hajime

RAIKOU (): A General Relativistic, Multiwavelength Radiative Transfer Code

Kawashima, Tomohisa,   Ohsuga, Ken,   Takahashi, Hiroyuki R.

Detections of [C II] 158 μm and [O III] 88 μm in a Local Lyman Continuum Emitter, Mrk 54, and Its Implications to High-redshift ALMA Studies

Ura, Ryota,   Hashimoto, Takuya,   Inoue, Akio K.,   Fadda, Dario,   Hayes, Matthew,   Puschnig, Johannes

UV and Lyα Halos of Lyα Emitters across Environments at z = 2.84

Kikuta, Satoshi,   Matsuda, Yuichi,   Inoue, Shigeki,   Steidel, Charles C.,   Cen, Renyue,   Zheng, Zheng