45 citations · 227 across the 19 of their papers we have counts for
19 papers
Suppression of star formation at the centre of barred AGN galaxies
Takashi Yamamoto, Nario Kuno, Daisuke Iono +5
We measured the Concentration (C) index of Hαand CO (J = 2-1) in 17 nearby star-forming galaxies from the PHANGS survey. We have found four barred spiral galaxies with a C(Hα)/C(CO…
A New Framework for Multi-Line Analysis Combined Kernel PCA and Kernel SHAP: A Case of NGC 1068 ALMA Band 3 Data
Hiroma Okubo, Tsutomu T. Takeuchi, Shotaro Akaho +7
We present a new framework for multi-line analysis that combines kernel principal component analysis (Kernel PCA), an unsupervised machine-learning method, and Kernel SHapley Addit…
CO Multi-line Imaging of Nearby Galaxies (COMING). XI. Azimuthally averaged star formation rate and stellar mass relation with molecular gas amount
Ayumi Kajikawa, Kazuo Sorai, Kana Morokuma-Matsui +13
This study investigated the relation between the surface density of star formation rate (SFR) (), stellar mass (), and molecular gas mass ($Σ_{M_\ma…
Detailed analysis of multi-line molecular distributions in the Seyfert galaxy NGC 1068: Possible effect of the AGN outflow to the starburst ring
Hiroma Okubo, Toshiki Saito, Shuro Takano +5
We apply principal component analysis (PCA) to the integrated intensity maps of 13 molecular lines of the nearby type-2 Seyfert galaxy NGC 1068 obtained by Atacama Large Millimeter…
Whole-disk sampling of molecular clouds in M83
Akihiko Hirota, Jin Koda, Fumi Egusa +17
We present a catalog of clouds identified from the CO (1--0) data of M83, which was observed using Atacama Large Millimeter/submillimeter Array (ALMA) with a spatial resolut…
Detection of the [O I] 63 m emission line from the quasar J2054-0005
Nozomi Ishii, Takuya Hashimoto, Carl Ferkinhoff +23
We report the highest-redshift detection of [O I] 63 m from a luminous quasar, J2054-0005, at based on the Atacama Large Millimeter/sub-millimeter Array Band 9 observat…
ACA CO(J=2-1) Mapping of the Nearest Spiral Galaxy M33. II. Exploring the Evolution of Giant Molecular Clouds
Ayu Konishi, Kazuyuki Muraoka, Kazuki Tokuda +12
The evolution of giant molecular clouds (GMCs), the main sites of high-mass star formation, is an essential process to unravel the galaxy evolution. Using a GMC catalogue of M33 fr…
Quantitative analysis of the molecular gas morphology in nearby disk galaxies
Takashi Yamamoto, Daisuke Iono, Toshiki Saito +4
We present a quantitative and statistical analysis of the molecular gas morphology in 73 nearby galaxies using high spatial resolution CO ( = 2-1) data obtained from the Atacama…
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…
Molecular gas and nuclear activity in early-type galaxies: any link with radio-loudness?
Ranieri D. Baldi, Marcello Giroletti, Alessandro Capetti +4
Aims. We want to study the amount of molecular gas in a sample of nearby early-type galaxies (ETGs) which host low-luminosity Active Galactic Nuclei (AGN). We look for possible dif…
A multiwavelength analysis of the clumpy FIR-bright sources in M33
G. Natale, K. Foyle, C. D. Wilson +1
We present a multiwavelength study of a sample of far-infrared (FIR) sources detected on the Herschel broad--band maps of the nearby galaxy M33. We perform source photometry on the…
A New 100-GHz Band Two-Beam Sideband-Separating SIS Receiver for Z-Machine on the NRO 45-m Radio Telescope
Taku Nakajima, Kimihiro Kimura, Atsushi Nishimura +11
We have developed a two-beam waveguide-type dual-polarization sideband-separating SIS receiver system in the 100-GHz band for {\it z}-machine on the 45-m radio telescope at the Nob…
Initial Results from the Nobeyama Molecular Gas Observations of Distant Bright Galaxies
D. Iono, B. Hatsukade, K. Kohno +37
We present initial results from the CO survey toward high redshift galaxies using the Nobeyama 45m telescope. Using the new wide bandwidth spectrometer equipped with a two-beam SIS…
Optimization by Smoothed Bandpass Calibration in Radio Spectroscopy
Haruka Yamaki, Seiji Kameno, Hirohisa Beppu +2
We have developed the Smoothed Bandpass Calibration (SBC) method and the best suitable scan pattern to optimize radio spectroscopic observations. Adequate spectral smoothing is app…
SiO Maser Spectra of V407 Cyg after the 2010 March Nova Outburst
S. Deguchi, K. Koike, N. Kuno +3
We report on the time variation of SiO maser emission from the symbiotic stellar system V407 Cyg after the classical nova outburst on 2010 March 10. Although both the SiO --0…
ASTE CO(3--2) Observations of the Southern Barred Spiral Galaxy NGC 986: a Large Gaseous Bar Filled with Dense Molecular Medium
K. Kohno, T. Tosaki, R. Miura +20
We present CO(3-2) emission observations toward the 3'x3' (or 20x20kpc at a distance of 23Mpc) region of the southern barred spiral galaxy NGC 986 using the Atacama Submillimeter T…
A Revised Estimate of the CO (J=1-0) Emission from the Host Galaxy of GRB 030329 Using the Nobeyama Millimeter Array
Akira Endo, Kotaro Kohno, Bunyo Hatsukade +9
A sensitive observation of the CO (J=1-0) molecular line emission in the host galaxy of GRB 030329 (z =0.1685) has been performed using the Nobeyama Millimeter Array in order to de…
Nobeyama Millimeter Array Observations of GRB 030329: a Decay of Afterglow with Bumps and Molecular Gas in the Host Galaxy
K. Kohno, T. Tosaki, T. Okuda +12
Nobeyama Millimeter Array was used to observe millimeter-wave afterglow of GRB 030329 at 93 GHz and 141 GHz from 2003 April 6 to 2003 May 30. A sensitive search for CO(J=1-0) emiss…
Study of the Bipolar Nebula IRAS 19312+1950. I. Mapping Observations
J. Nakashima, S. Deguchi, N. Kuno
IRAS 19312+1950 is an SiO maser source that exhibits a prominent bipolar nebulosity. Mapping observations of this object were made in the CO J=1--0, 13CO J=1--0, C18O J=1--0, CS J=…