activity
19992020
most citedLocal Enhancement of Surface Density in the Protoplanetary Ring Surrounding HD 142527

154 citations · 1.5k across the 51 of their papers we have counts for

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Showing astro-ph.GAShow all

28 papers · 1 filter

astro-ph.GA2020★ 3 cited

Cloud-Cloud Collision in the Galactic Center Arc

Masato Tsuboi, Yoshimi Kitamura, Kenta Uehara +4

We performed a search of cloud-cloud collision (CCC) sites in the Sagittarius A molecular cloud (SgrAMC) based on the survey observations using the Nobeyama 45-m telescope in the C…

astro-ph.GA2020★ 9 cited

Where is the Western Part of the Galactic Center Lobe Located really?

Masato Tsuboi, Takahiro Tsutsumi, Yoshimi Kitamura +3

The Galactic Center Lobe (GCL) is a peculiar object widely protruding from the Galactic plane toward the positive Galactic latitude, which had been found toward the Galactic Center…

astro-ph.GA2020★ 9 cited

How far actually is the Galactic Center IRS 13E3 from Sagittarius A?

Masato Tsuboi, Yoshimi Kitamura, Takahiro Tsutsumi +3

The Galactic Center IRS 13E cluster is a very intriguing IR object located at pc from Sagittarius A (Sgr A) in projection distance. There are both argument…

astro-ph.GA2020★ 7 cited

Sub-millimeter Detection of a Galactic Center Cool Star IRS 7 by ALMA

Masato Tsuboi, Yoshimi Kitamura, Takahiro Tsutsumi +3

IRS 7 is an M red supergiant star which is located at north of Sagittarius A. We detected firstly the continuum emission at 340 GHz of IRS 7 using ALMA. The total flu…

astro-ph.GA2019★ 5 cited

G-0.02-0.07, the Compact HII Region Complex nearest to the Galactic Center with ALMA

Masato Tsuboi, Yoshimi Kitamura, Kenta Uehara +4

We have observed the compact HII region complex nearest to the dynamical center of the Galaxy, G-0.02-0.07, using ALMA in the H42a recombination line, CS J=2-1, H13CO+ J=1-0, and S…

astro-ph.GA2019★ 18 cited

Rotating Ionized Gas Ring around the Galactic Center IRS13E3

Masato Tsuboi, Yoshimi Kitamura, Takahiro Tsutsumi +3

We detected a compact ionized gas associated physically with IRS13E3, an Intermediate Mass Black Hole (IMBH) candidate in the Galactic Center, in the continuum emission at 232 GHz…

astro-ph.GA2019★ 15 cited

Molecular Cloud Cores in the Galactic Center 50 Molecular Cloud

Kenta Uehara, Masato Tsuboi, Yoshimi Kitamura +1

The Galactic Center 50 km s Molecular Cloud (50MC) is the most remarkable molecular cloud in the Sagittarius A region. This cloud is a candidate for the massive star formati…

astro-ph.GA2018★ 6 cited

A 1000 AU Scale Molecular Outflow Driven by a Protostar with an age of <4000 Years

Ray S. Furuya, Yoshimi Kitamura, Hiroko Shinnaga

To shed light on the early phase of a low-mass protostar formation process, we conducted interferometric observations towards a protostar GF9-2 using the CARMA and SMA. The observa…

astro-ph.GA2018★ 37 cited

ALMA View of the Circum-nuclear Disk of the Galactic Center; Tidally-disrupted Molecular Clouds falling to the Galactic Center

Masato Tsuboi, Yoshimi Kitamura, Kenta Uehara +4

We present the high angular resolution and high sensitivity images of the "Circum-Nuclear Disk (CND)" and its surrounding region of Milky Way Galaxy in the CS J=2-1, SiO v=0 J=2-1,…

astro-ph.GA2017★ 35 cited

The Second Galactic Center Black Hole?; A Possible Detection of Ionized Gas Orbiting around an IMBH embedded in the Galactic Center IRS13E complex

Masato Tsuboi, Yoshimi Kitamura, Takahiro Tsutsumi +4

The Galactic Center is the nuclear region of the nearest spiral galaxy, Milky Way, and contains the supermassive black hole with M~4x10^6 Msun, Sagittarius A* (Sgr A*). One of basi…

astro-ph.GA2016

ALMA view of the Galactic Center 50km/s molecular cloud

Kenta Uehara, Masato Tsuboi, Yoshimi Kitamura +2

We have observed the Galactic Center 50km/s molecular cloud (50MC) with ALMA to search for filamentary structures. In the CS J=2-1 emission line channel maps, we succeeded in ident…

astro-ph.GA2016★ 4 cited

Tidally-disrupted Molecular Clouds falling to the Galactic Center

Masato Tsuboi, Yoshimi Kitamura, Kenta Uehara +2

We found a molecular cloud connecting from the outer region to the "Galactic Center Mini-spiral (GCMS)" which is a bundle of the ionized gas streams adjacent to Sgr A*. The molecul…

astro-ph.GA2016★ 25 cited

ALMA View of the Galactic Center Mini-spiral: Ionized Gas Flows around Sagittarius A*

Masato Tsuboi, Yoshimi Kitamura, Kenta Uehara +4

We have performed the observation of the "Galactic Center Mini-spiral(GCMS)" in H42alpha recombination line as a part of the first large-scale mosaic observation in the Sagittarius…

astro-ph.GA2016★ 21 cited

The intrinsic abundance ratio and X-factor of CO isotopologues in L1551 shielded from FUV photodissociation

Sheng-Jun Lin, Yoshito Shimajiri, Chihomi Hara +10

L1551 is chosen because it is relatively isolated in the Taurus molecular cloud shielded from FUV photons, providing an ideal environment for studying the target properties. Our ob…

astro-ph.GA2016★ 23 cited

Galactic Center Mini-spiral by ALMA - Possible Origin of the Central Cluster

Masato Tsuboi, Yoshimi Kitamura, Makoto Miyoshi +3

We present continuum images of the "Galactic Center Mini-spiral" of 100, 250, and 340 GHz bands with the analysis of the Cy.0 data acquired from the Atacama Large Millimeter/submil…

astro-ph.GA2015★ 28 cited

Spectral-Line Survey at Millimeter and Submillimeter Wavelengths toward an Outflow-Shocked Region, OMC 2-FIR 4

Yoshito Shimajiri, Takeshi Sakai, Yoshimi Kitamura +9

We performed the first spectral-line survey at 82--106 GHz and 335--355 GHz toward the outflow-shocked region, OMC 2-FIR 4, the outflow driving source, FIR 3, and the northern outf…

astro-ph.GA2015★ 98 cited

The Far-Infrared All-Sky Survey Maps

Yasuo Doi, Satoshi Takita, Takafumi Ootsubo +15

We present a far-infrared all-sky atlas from a sensitive all-sky survey using the Japanese satellite. The survey covers % of the sky in four photometric bands centred…

astro-ph.GA2015★ 38 cited

Catalog of dense cores in the Orion A giant molecular cloud

Yoshito Shimajiri, Y. Kitamura, F. Nakamura +8

We present Orion A giant molecular cloud core catalogs, which are based on 1.1 mm map with an angular resolution of 36 arcsec (sim 0.07 pc) and C18O (1-0) data with an angular reso…

astro-ph.GA2014★ 10 cited

A Dynamically Collapsing Core and a Precursor of a Core in a Filament Supported by Turbulent and Magnetic Pressures

Ray S. Furuya, Yoshimi Kitamura, Hiroko Shinnaga

To study physical properties of the natal filament gas around the cloud core harboring an exceptionally young low-mass protostar GF9-2, we carried out J=1-0 line observations of 12…

astro-ph.GA2014★ 84 cited

High abundance ratio of CO to CO toward photon-dominated regions in the Orion-A giant molecular cloud

Yoshito Shimajiri, Yoshimi Kitamura, Masao Saito +11

Aims. We derive physical properties such as the optical depths and the column densities of CO and CO to investigate the relationship between the far ultraviolet (FUV)…

astro-ph.GA2013★ 40 cited

The AKARI FIS YSO Catalogue

L. Viktor Tóth, Gábor Marton, Sarolta Zahorecz +6

We demonstrate the use of the AKARI survey photometric data in the study of galactic star formation. Our aim was to select young stellar objects (YSOs) in the AKARI FIS catalogue.…

astro-ph.GA2013★ 43 cited

Extensive [CI] Mapping toward the Orion-A Molecular Cloud

Yoshito Shimajiri, Takeshi Sakai, Takashi Tsukagoshi +6

We have carried out wide-field (0.17 degree^2) and high-angular resolution (21.3 arcsec ~ 0.04 pc) observations in [CI] line toward the Orion-A giant molecular cloud with the Ataca…

astro-ph.GA2012

AKARI Far-Infrared All-Sky Survey Maps

Yasuo Doi, Shinya Komugi, Mitsunobu Kawada +13

Far-infrared observations provide crucial data for the investigation and characterisation of the properties of dusty material in the Interstellar Medium (ISM), since most of its en…

astro-ph.GA2011★ 114 cited

Planck Early Results: The submillimetre properties of a sample of Galactic cold clumps

Planck Collaboration, P. A. R. Ade, N. Aghanim +201

(abridged) We perform a detailed investigation of sources from the Cold Cores Catalogue of Planck Objects (C3PO). Our goal is to probe the reliability of the detections, validate t…