activity
20112021
most citedNeutral pion emission from accelerated protons in the supernova remnant W44

229 citations · 1.4k across the 37 of their papers we have counts for

collaborators

37 papers

astro-ph.HE2021

Associated molecular and atomic clouds with X-ray shell of superbubble 30 Doradus C in the LMC

Y. Yamane, H. Sano, M. D. Filipovic +20

30 Doradus C is a superbubble which emits the brightest nonthermal X- and TeV gamma-rays in the Local Group. In order to explore detailed connection between the high energy radiati…

astro-ph.HE2021★ 29 cited

ALMA CO Observations of the Mixed-Morphology Supernova Remnant W49B: Efficient Production of Recombining Plasma and Hadronic Gamma-rays via Shock-Cloud Interactions

H. Sano, S. Yoshiike, Y. Yamane +7

We carried out new CO( = 2-1) observations toward the mixed-morphology supernova remnant (SNR) W49B with the Atacama Large Millimeter/submillimeter Array (ALMA). We found that C…

astro-ph.IM2020

Development of the new multi-beam receiver and telescope control system for NASCO

Atsushi Nishimura, Akio Ohama, Kimihiro Kimura +59

We report the current status of the NASCO (NAnten2 Super CO survey as legacy) project which aims to provide all-sky CO data cube of southern hemisphere using the NANTEN2 4-m submil…

astro-ph.HE2020★ 23 cited

ALMA CO Observations of the Gamma-Ray Supernova Remnant RX J1713.7-3946: Discovery of Shocked Molecular Cloudlets and Filaments at 0.01 pc scales

H. Sano, T. Inoue, K. Tokuda +14

RX J1713.7-3946 is a unique core-collapse SNR that emits bright TeV gamma-rays and synchrotron X-rays caused by cosmic rays, in addition to interactions with interstellar gas cloud…

astro-ph.GA2020★ 4 cited

Triggered high-mass star formation in the HII region W28A2: A cloud-cloud collision scenario

Katsuhiro Hayashi, Satoshi Yoshiike, Rei Enokiya +15

We report on a study of the high-mass star formation in the the HII region W28A2 by investigating the molecular clouds extended over ~5-10 pc from the exciting stars using the 12CO…

astro-ph.HE2019★ 31 cited

Deep XMM-Newton Observations Reveal the Origin of Recombining Plasma in the Supernova Remnant W44

Hiromichi Okon, Takaaki Tanaka, Hiroyuki Uchida +8

Recent X-ray studies revealed over-ionized recombining plasmas (RPs) in a dozen mixed-morphology (MM) supernova remnants (SNRs). However, the physical process of the over-ionizatio…

astro-ph.GA2018★ 13 cited

CO observations toward the isolated mid-infrared bubble S44: External triggering of O-star formation by a cloud-cloud collision

Mikito Kohno, Kengo Tachihara, Shinji Fujita +11

We have performed a multi-wavelength study of the mid-infrared bubble S44 to investigate the origin of isolated high-mass star(s) and the star-formation process around the bubble f…

astro-ph.GA2018★ 20 cited

ALMA CO Observations of Supernova Remnant N63A in the Large Magellanic Cloud: Discovery of Dense Molecular Clouds Embedded within Shock-Ionized and Photoionized Nebulae

H. Sano, H. Matsumura, T. Nagaya +19

We carried out new CO( = 1-0, 3-2) observations of a N63A supernova remnant (SNR) from the LMC using ALMA and ASTE. We find three giant molecular clouds toward the northe…

astro-ph.GA2018★ 21 cited

Molecular gas in a Spitzer bubble N4: possible evidence for cloud-cloud collisions as a trigger of massive star formation

Shinji Fujita, Kazufumi Torii, Kengo Tachihara +18

Herein, we present the 12CO (J=1-0) and 13CO (J=1-0) emission line observations via the FOREST Unbiased Galactic plane Imaging survey with the Nobeyama 45-m telescope (FUGIN) towar…

astro-ph.HE2018★ 11 cited

A Spatially Resolved Study of X-ray Properties in Superbubble 30 Dor C with

Yasunori Babazaki, Ikuyuki Mitsuishi, Hironori Matsumoto +4

We carry out spatially resolved spectral analysis with a physical scale of 10 pc in X-ray for the superbubble 30 Dor C, which has the largest diameter of 80 pc and the…

astro-ph.HE2018★ 17 cited

ALMA observations of supernova remnant N49 in the LMC: I. Discovery of CO clumps associated with X-ray and radio continuum shells

Y. Yamane, H. Sano, J. Th. van Loon +24

N49 (LHA 120-N49) is a bright X-ray supernova remnant (SNR) in the Large Magellanic Cloud. We present new CO( = 1-0, 3-2), HI, and 1.4 GHz radio-continuum observations of…

astro-ph.GA2018★ 31 cited

Molecular Clouds associated with the Type Ia SNR N103B in the Large Magellanic Cloud

H. Sano, Y. Yamane, K. Tokuda +18

N103B is a Type Ia supernova remnant (SNR) in the Large Magellanic Cloud (LMC). We carried out new CO( = 3-2) and CO( = 1-0) observations using ASTE and ALMA. W…

astro-ph.HE2018★ 22 cited

Possible Evidence for Cosmic-Ray Acceleration in the Type Ia SNR RCW 86: Spatial Correlation between TeV Gamma rays and Interstellar Atomic Protons

H. Sano, G. Rowell, E. M. Reynoso +13

We present a detailed morphological study of TeV gamma rays, synchrotron radiation, and interstellar gas in the young Type Ia supernova remnant (SNR) RCW 86. We find that the inter…

astro-ph.HE2018★ 49 cited

A search for new supernova remnant shells in the Galactic plane with H.E.S.S

H. E. S. S. Collaboration, :, H. Abdalla +263

A search for new supernova remnants (SNRs) has been conducted using TeV gamma-ray data from the H.E.S.S. Galactic plane survey. As an identification criterion, shell morphologies t…

astro-ph.GA2017★ 30 cited

Discovery of molecular and atomic clouds associated with the gamma-ray supernova remnant Kesteven 79

M. Kuriki, H. Sano, N. Kuno +21

We carried out CO( = 1-0) observations of the Galactic gamma-ray supernova remnant (SNR) Kesteven 79 using the Nobeyama Radio Observatory 45 m radio telescope, which has…

astro-ph.GA2017★ 2 cited

Massive star formation in W51A triggered by cloud-cloud collisions

Shinji Fujita, Kazufumi Torii, Nario Kuno +18

W51A is one of the most active star-forming region in our Galaxy, which contains giant molecular clouds with a total mass of 10^6 Msun. The molecular clouds have multiple velocity…

astro-ph.GA2017★ 26 cited

Large-scale CO J=1-0 observations of the giant molecular cloud associated with the infrared ring N35 with the Nobeyama 45-m telescope

Kazufumi Torii, Shinji Fujita, Mitsuhiro Matsuo +14

We report an observational study of the giant molecular cloud (GMC) associated with the Galactic infrared ring-like structure N35 and two nearby HII regions G024.392+00.072 (HII re…

astro-ph.GA2017

Molecular and Atomic Clouds toward the Wolf-Rayet Nebula NGC 2359: Possible Evidence for Isolated High-Mass Star Formation Triggered by a Cloud-Cloud Collision

Hidetoshi Sano, Katsuhiro Hayashi, Rei Enokiya +17

NGC 2359 is an HII region located in the outer Galaxy that contains the isolated Wolf-Rayet (WR) star HD 56925. We present millimeter/submillimeter observations of CO( =…

astro-ph.HE2017★ 42 cited

A detailed study of the interstellar protons toward the TeV -ray SNR RX J0852.04622 (G266.21.2, Vela Jr.); a third case of the -rays and ISM spatial correspondence

Y. Fukui, H. Sano, J. Sato +18

We present a new analysis of the interstellar protons toward the TeV -ray SNR RX J0852.04622 (G266.21.2, Vela Jr.). We used the NANTEN2 CO( = 1-0) and ATCA & Par…

astro-ph.GA2017★ 205 cited

FOREST Unbiased Galactic plane Imaging survey with the Nobeyama 45-m telescope (FUGIN) I: Project Overview and Initial Results

Tomofumi Umemoto, Tetsuhiro Minamidani, Nario Kuno +41

The FOREST Unbiased Galactic plane Imaging survey with the Nobeyama 45-m telescope (FUGIN) project is one of the legacy projects using the new multi-beam FOREST receiver installed…

astro-ph.GA2017★ 20 cited

CO observations of the molecular gas in the galactic HII region Sh2-48; Evidence for cloud-cloud collision as a trigger of high-mass star formation

Kazufumi Torii, Yusuke Hattori, Mitsuhiro Matsuo +15

Sh2-48 is a Galactic HII region located at 3.8 kpc with an O9.5-type star identified at its center. As a part of the FOREST Unbiased Galactic plane Imaging survey using the Nobeyam…

astro-ph.GA2017★ 47 cited

RCW 36 in the Vela Molecular Ridge: Evidence for a high-mass star cluster formation triggered by Cloud-Cloud Collision

Hidetoshi Sano, Rei Enokiya, Katsuhiro Hayashi +21

A collision between two molecular clouds is one possible candidate for high-mass star formation. The HII region RCW 36, located in the Vela molecular ridge, contains a young star c…

astro-ph.HE2017★ 23 cited

Prospects for CTA observations of the young SNR RX J1713.7-3946

The CTA Consortium, :, F. Acero +381

We perform simulations for future Cherenkov Telescope Array (CTA) observations of RX~J1713.73946, a young supernova remnant (SNR) and one of the brightest sources ever discovere…

astro-ph.GA2017★ 34 cited

Discovery of Molecular and Atomic Clouds Associated with the Magellanic Superbubble 30 Doradus C

H. Sano, Y. Yamane, F. Voisin +15

We analyzed the 2.6-mm CO and 21-cm HI lines toward the Magellanic superbubble 30 Doradus C, in order to reveal the associated molecular and atomic gas. We uncovered five molecular…