Susumu Inoue

Probing intergalactic radiation fields during cosmic reionization through gamma-ray absorption (2009)

Inoue, Susumu, Salvaterra, Ruben, Choudhury, Tirthankar Roy, Ferrara, Andrea, Ciardi, Benedetta, Schneider, Raffaella

We discuss expectations for the absorption of high-energy gamma-rays by gamma-gamma pair production with intergalactic radiation fields (IRFs) at very high redshifts (z~5-20), and the prospects...

Lithium Abundances of Extremely Metal-Poor Turn-off Stars (2009)

Aoki, Wako, Barklem, Paul S., Beers, Timothy C., Christlieb, Norbert, Inoue, Susumu, Perez, Ana E. Garcia, ...

We have determined Li abundances for eleven metal-poor turn-off stars, among which eight have [Fe/H]

Hard X-ray Properties of the Merging Cluster Abell 3667 as Observed with Suzaku (2008)

Nakazawa, Kazuhiro, Sarazin, Craig L., Kawaharada, Madoka, Kitaguchi, Takao, Okuyama, Sho, Makishima, Kazuo, ...

Wide-band Suzaku data on the merging cluster Abell 3667 were examined for hard X-ray emission in excess to the known thermal component. Suzaku detected X-ray signals in the wide energy band from 0.5...

Origin of ultra-high energy cosmic rays in the era of Auger and Telescope Array (2008)

Inoue, Susumu

The origin of ultra-high energy cosmic rays is discussed in light of the latest observational results from the Pierre Auger Observatory, highlighting potential astrophysical sources such as active...

Prompt High-Energy Emission from Proton-Dominated Gamma-Ray Bursts (2008)

Asano, Katsuaki, Inoue, Susumu, Mészáros, Peter

The prompt emission of gamma-ray bursts (GRBs) is widely thought to be radiation from accelerated electrons, but an appreciably larger amount of energy could be carried by accelerated protons,...

Suzaku Observation of the Ophiuchus Galaxy Cluster: One of the Hottest Cool Core Clusters (2008)

Fujita, Yutaka, Hayashida, Kiyoshi, Nagai, Masaaki, Inoue, Susumu, Matsumoto, Hironori, Okabe, Nobuhiro, ...

We present the analysis of a Suzaku observation of the Ophiuchus galaxy cluster. We confirmed that the cluster has a cool core. While the temperature of the intracluster medium (ICM) decreases toward...

Detectability of Pair Echos from Gamma-Ray Bursts and Intergalactic Magnetic Fields (2008)

Takahashi, Keitaro, Murase, Kohta, Ichiki, Kiyotomo, Inoue, Susumu, Nagataki, Shigehiro

High-energy emission from gamma-ray bursts (GRBs) can give rise to pair echos, i.e. delayed inverse Compton emission from secondary $e^{\pm}$ pairs produced in $\gamma-\gamma$ interactions with...

Probing Intergalactic Magnetic Fields in the GLAST Era through Pair Echo Emission from TeV Blazars (2008)

Murase, Kohta, Takahashi, Keitaro, Inoue, Susumu, Ichiki, Kiyomoto, Nagataki, Shigehiro

More than a dozen blazars are known to be emitters of multi-TeV gamma rays, often with strong and rapid flaring activity. By interacting with photons of the cosmic microwave and infrared backgrounds,...

Cosmic Rays Above the Second Knee from Clusters of Galaxies and Associated High-Energy Neutrino Emission (2008)

Murase, Kohta, Inoue, Susumu, Nagataki, Shigehiro

Accretion and merger shocks in clusters of galaxies are potential accelerators of high-energy protons, which can give rise to high-energy neutrinos through pp interactions with the intracluster gas....

宮崎県椎葉村大河内集落における植物の伝統的名称およびその利用法 : II. 低木 (2008)

内海, 泰弘, 村田, 育恵, 椎葉, 康喜, 井上, 晋, Utsumi, Yasuhiro, Murata, Ikue, ...

宮崎県椎葉村大河内地区における植物の伝統的な利用法と方言を記載した.前報(内海ら2007)では高木について述べたが,本報では低木79種と7類(...

宮崎演習林の学術参考保護林と見本林(I) (2008)

久保田, 勝義, 井上, 幸子, 壁村, 勇二, 鍜治, 清弘, 内海, 泰弘, 榎木, 勉, ...

宮崎演習林に学術参考保護林が指定され60年以上が経過した.その間,自然林保全区への編入や名称の変更など様々の経緯を辿ってきた.しかし,そ...

Probing the Nature of the Weakest Intergalactic Magnetic Fields with the High Energy Emission of Gamma-Ray Bursts (2007)

Ichiki, Kiyotomo, Inoue, Susumu, Takahashi, Keitaro

We investigate the delayed, secondary GeV-TeV emission of gamma-ray bursts and its potential to probe the nature of intergalactic magnetic fields. Geometrical effects are properly taken into account...

Ultrahigh energy cosmic rays as heavy nuclei from cluster accretion shocks (2007)

Inoue, Susumu, Sigl, Guenter, Miniati, Francesco, Armengaud, Eric

Large-scale accretion shocks around massive clusters of galaxies, generically expected in hierarchical scenarios of cosmological structure formation, are shown to be potential sources of the observed...

Cosmic Ray production of Beryllium and Boron at high redshift (2007)

Rollinde, Emmanuel, Maurin, David, Vangioni, Elisabeth, Olive, Keith A., Inoue, Susumu

Recently, new observations of Li6 in Pop II stars of the galactic halo have shown a surprisingly high abundance of this isotope, about a thousand times higher than its predicted primordial value. In...

Prompt GeV-TeV Emission of Gamma-Ray Bursts Due to High-Energy Protons, Muons and Electron-Positron Pairs (2007)

Asano, Katsuaki, Inoue, Susumu

In the framework of the internal shock scenario, we model the broadband prompt emission of gamma-ray bursts (GRBs) with emphasis on the GeV-TeV bands, utilizing Monte Carlo simulations that include...

宮崎県椎葉村大河内集落における植物の伝統的名称およびその利用法 : I. 高木 (2007)

内海, 泰弘, 村田, 育恵, 椎葉, 康喜, 井上, 晋, Utsumi, Yasuhiro, Murata, Ikue, ...

日本民俗学発祥の地とも呼ばれ,伝統的な植物民俗文化を維持している宮崎県椎葉村大河内地区において,生育する高木(針葉樹10種,広葉樹59種と6...

Astrophysical Origins of the Highest Energy Cosmic Rays (2007)

Inoue, Susumu

Theoretical aspects of potential astrophysical sources of the highest energy cosmic rays are discussed, including their energy budget and some issues on particle escape and propagation. After briefly...

Ultrahigh energy cosmic rays as heavy nuclei from cluster accretion shocks (2007)

Inoue, Susumu, Sigl, Guenter, Miniati, Francesco, Armengaud, Eric

Large-scale accretion shocks around massive clusters of galaxies, generically expected in the cold dark matter scenario of cosmological structure formation, are shown to be plausible sources of the...

The Relation between the Fall in Breeding Success Ratio of Mountain Hawk Eagle (Spizaetus nipalensis) and Forest Structure of its Home Range (2006)

Iida, Tomohiko, Mori, Takayuki, Inoue, Susumu, 飯田, 知彦, 毛利, 孝之, 井上, 晋

The kumatakas’ breeding success ratio of the western Hiroshima prefecture has fallen rapidly as another of bird of prey reported since 1990s. The author has studied the relation between the success...

九州大学福岡演習林の長期森林動態試験地設定時の林況 (2006)

井上, 貴文, 長, 慶一郎, 鍜治, 清弘, 椎原, 康喜, 山内, 康平, 井上, 一信, ...

九州大学農学部附属福岡演習林の13・14林班内には植栽後100年以上が経過したスギ造林地がある.現在では,スギの生育が不良であった場所で種・サ...

Light Element Production in the Circumstellar Matter of Energetic Type Ic Supernovae (2006)

Nakamura, Ko, Inoue, Susumu, Wanajo, Shinya, Shigeyama, Toshikazu

We investigate energetic type Ic supernovae as production sites for Li6 and Be in the early stages of the Milky Way. Recent observations have revealed that some very metal-poor stars with [Fe/H]

Species Composition,Diversity and Structure of Secondary Tropical Forests Following Selective Logging in Huong Son,Ha Tinh Province,Vietnam (2005)

Tran, Hop, Iida ,Shigeru, Inoue, Susumu, 飯田, 繁, 井上 晋, イイダ, シゲル, ...

Species composition, diversity and structure of Houng Son secondary forests post-logged 2 years (PL2), 12 years (PL12) and 22 years (PL"") were studied in may 2004. Percent composition of families...

Initial Sprouting of Some Tree Species in Natural Forests Following 9 - Month Cutting in Kasuya Research Forest of Kyushu University Forest, Japan (2005)

Tran, Hop, Iida, Shigeru, Inoue, Susumu, 飯田, 繁, 井上 晋, イイダ, シゲル, ...

Two deciduous species, Castanea crenata Sieb. & Zucc. and Quercus serrata Thumb., and two evergreen species, Quercus glauca Thumb. and Symplocus lucida Sieb. & Zucc., in natural forests at Kasuya...

Hard X-ray and Gamma-ray Emission Induced by Ultra-High Energy Protons in Cluster Accretion Shocks and their Detectability (2005)

Inoue, Susumu, Aharonian, Felix A., Sugiyama, Naoshi

Protons can be plausibly accelerated to $\sim 10^{18}$-$10^{19}$ eV in strong accretion shocks surrounding massive clusters of galaxies. Such protons efficiently produce very high energy pairs...

Hard X-ray and Gamma-ray Emission Induced by Ultra-High Energy Protons in Cluster Accretion Shocks (2005)

Inoue, Susumu, Aharonian, Felix A., Sugiyama, Naoshi

All sufficiently massive clusters of galaxies are expected to be surrounded by strong accretion shocks, where protons can be accelerated to $\sim 10^{18}$-$10^{19}$ eV under plausible conditions....

Gamma-Rays from Large Scale Structure Formation and the Warm-Hot Intergalactic Medium: Cosmic Baryometry with Gamma-Rays (2005)

Inoue, Susumu, Nagashima, Masahiro

It is shown that inverse Compton gamma-rays from electrons accelerated in large scale structure formation shocks can be crucially affected by non-gravitational effects such as radiative cooling and...

The Radio to Infrared Emission of Very High Redshift Gamma-Ray Bursts: Probing Early Star Formation through Molecular and Atomic Absorption Lines (2005)

Inoue, Susumu, Omukai, Kazuyuki, Ciardi, Benedetta

We evaluate the broadband afterglow emission of very high redshift gamma-ray bursts (GRBs) using standard relativistic blastwave models with both forward and reverse shock components. For a broad...

Hard X-ray and gamma-ray emission induced by ultra-high-energy protons in cluster accretion shocks (2005)

Inoue, Susumu, Aharonian, Felix, Sugiyama, Naoshi

All sufficiently massive clusters of galaxies are expected to be surrounded by strong accretion shocks, where protons can be accelerated to 10181019 eV under plausible conditions. Such protons...

A low upper-limit on the lithium isotope ratio in HD140283 (2004)

Aoki, Wako, Inoue, Susumu, Kawanomoto, Satoshi, Ryan, Sean G., Smith, Iain M., Suzuki, Takeru K., ...

We have obtained a high-S/N (900-1100), high-resolving-power (R=95000) spectrum of the metal-poor subgiant HD 140283 in an effort to measure its 6Li/7Li isotope ratio. From a 1-D atmospheric...

九州大学宮崎演習林においてキュウシュウジカの摂食被害を受けたスズタケ群落の分布と生育状況 : 2003年調査結果 (2004)

猿木, 重文, 井上, 晋, 椎葉, 康喜, 長澤, 久視, 大崎, 繁, 久保田, 勝義, ...

九州大学宮崎演習林の冷温帯林において,キュウシュウジカ(Cervus nippon nippon Temminck)による摂食の影響を受けて変化したスズタケ(Sasamorpha...

Cosmic Ray Production of $^6$Li by Virialization Shocks in the Early Milky Way (2003)

Suzuki, Takeru K., Inoue, Susumu

The energy dissipated by virialization shocks during hierarchical structure formation of the Galaxy can exceed that injected by concomitant supernova (SN) explosions. Cosmic rays (CRs) accelerated by...

Probing the Cosmic Reionization History and Local Environment of Gamma-Ray Bursts through Radio Dispersion (2003)

Inoue, Susumu

We discuss the effect of dispersion delay due to intervening ionized media in the radio emission of gamma-ray bursts (GRBs). For high redshift GRBs ($z \ga 3$), the ionized intergalactic medium (IGM)...

Nucleosynthesis of Light and Heavy Elements in Baryon-Rich Outflows Associated with Gamma-Ray Bursts (2003)

Inoue, Susumu, Iwamoto, Nobuyuki, Orito, Manabu, Terasawa, Mariko

Gamma-ray bursts (GRBs) must originate from low baryon load, ultrarelativistic outflows; however, slower, more baryon-rich outflows (BROs) should also arise in connection with GRBs as ``circum-jet...

Local Inhabitants' Consciousness of Using and Managing and Managing Urban Forest Areas -A Case Study of [Iki-no Matsubara] in Fukuoka City- (2003)

Perk, Koo-won, Sokh, Heng, Inoue, Susumu, 井上, 晋, イノウエ, ススム

Many forests in japan are under the control of national and local governments. Most of these are designated for recreation. As demand of recreation increases, problems related to the management of...

Nucleosynthesis in Baryon-Rich Outflows Associated With Gamma-Ray Bursts (2003)

Inoue, Susumu, Iwamoto, Nobuyuki, Orito, Manabu, Terasawa, Mariko

Robust generation of gamma-ray bursts (GRBs) implies the formation of outflows with very low baryon loads and highly relativistic velocities, but more baryon-rich, slower outflows are also likely to...

Precursor plerionic activity and high-energy gamma-ray emission in the supranova model of gamma-ray bursts (2003)

Inoue, Susumu, Guetta, Dafne, Pacini, Franco

The supranova model of gamma-ray bursts ( GRBs), in which the GRB event is preceded by a supernova (SN) explosion by a few months to years, has recently gained support from Fe line detections in the...

Cosmic Ray Production of $^6$Li by Structure Formation Shocks in the Early Galaxy (2002)

Inoue, Susumu, Suzuki, Takeru Ken

We discuss the production of the element $^6$Li in the early Galaxy by cosmic rays accelerated at structure formation shocks, driven by the hierarchical merging of sub-Galactic halos during Galaxy...

Cosmic Ray Production of Lithium-6 by Structure Formation Shocks in the Early Milky Way: A Fossil Record of Dissipative Processes during Galaxy Formation (2002)

Suzuki, Takeru K., Inoue, Susumu

While the abundances of Be and B observed in metal-poor halo stars are well explained as resulting from spallation of CNO-enriched cosmic rays (CRs) accelerated by supernova shocks, accounting for...

Precursor Plerionic Activity and High Energy Gamma-Ray Emission in the Supranova Model of Gamma-Ray Bursts (2001)

Inoue, Susumu, Guetta, Dafne, Pacini, Franco

The supranova model of gamma-ray bursts (GRBs), in which the GRB event is preceded by a supernova (SN) explosion by a few months to years, has recently gained support from Fe line detections in X-ray...

Heating of the Hot Intergalactic Medium by Powerful Radio Galaxies and Associated High Energy Gamma-Ray Emission (2001)

Inoue, Susumu, Sasaki, Shin

There is increasing evidence that some heating mechanism in addition to gravitational shock heating has been important for the hot gas inside clusters and groups of galaxies, as indicated by their...

Characteristic X-ray Variability of TeV Blazars: Probing the Link between the Jet and the Central Engine (2001)

Kataoka, Jun, Takahashi, Tadayuki, Wagner, Stefan J., Iyomoto, Naoko, Edwards, Philip G., Hayashida, Kiyoshi, ...

We have studied the rapid X-ray variability of three extragalactic TeV gamma-ray sources; Mrk 421, Mrk 501 and PKS 2155-304. Analyzing the X-ray light curves obtained from ASCA and/or RXTE...

Preheating in the Universe Suppressing High Energy Gamma-rays from Structure Formation (2001)

Totani, Tomonori, Inoue, Susumu

Structure formation in the universe can produce high energy gamma-rays from shock-accelerated electrons, and this process may be the origin of the extragalactic gamma-ray background (EGRB) as well as...

The Declined Activity in the Nucleus of NGC 1316 (1998)

Iyomoto, Naoko, Makishima, Kazuo, Tashiro, Makoto, Inoue, Susumu, Kaneda, Hidehiro, Matsumoto, Yukari, ...

NGC 1316 (Fornax A) is a radio galaxy with prototypical double lobes, where the magnetic field intensity is accurately measured via the inverse-Compton technique. The radio-emitting electrons in the...

Survey of Basidiomycets and Insect Infested Roadside Trees (1995)

大賀, 祥治, 野村, 周平, 井上, 晋, Oga, Shoji, Nomura, Shuhei, Inoue, Susumu, ...

Some biotic and abiotic factors causal to the deterioration of roadside trees were surveyed in Fukuoka City on 23 species planted along 22 main streets. Various fruit bodies of basidiomycete,...

Protease II from Moraxella lacunata: Cloning, Sequencing, and Expression of the Enzyme Gene, and Crystallization of the Expressed (1995)

Yoshimoto, Tadashi, Tabira, Jun, Kabashima, Tsutomu, Inoue, Susumu, Ito, Kiyoshi

A gene coding for protease II (basic amino acid specific oligoendopeptidase) from Moraxella lacunata was cloned and expressed in Escherichia coli DHL The transformant harboring a hybrid plasmid,...

景観造成のための緑地保全に関する研究 (1983)

井上, 晋, Inoue, Susumu, イノウエ, ススム

The objectives of this paper are to establish a theory and techniques for the creation of scenic green space for enhancing human life, and to demon・ strate the results of technical methods of...

スズタケの生態に関する研究 (1977)

汰木, 達郎, 荒上, 和利, 井上, 晋, Yuruki, Tatsuro, Aragami, Kazutoshi, Inoue, Susumu, ...

はじめに I.生態調査1.調査地および調査方法2.結果と考察A 個体生長B 群落構造C 群落環境...