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List of works by Kotaro Niinuma

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Discovery of two radio transients at a high galactic latitude in a 1.4 GHz drift-scan survey

scientific article published in January 2009
The closely positioned three radio transients in the nasu 1.4 GHz wide-field survey

Calculation of false-detection rate for Nasu Interferometric Sky Survey

scientific article published in January 2012
X-ray and radio follow-up observations of high-redshift blazar candidates in the Fermi-LAT unassociated source population

scientific article published in the Astrophysical Journal
Two strong radio bursts at high and medium Galactic latitude

scientific article published in January 2008
Radio and γ-ray follow-up of the exceptionally high-activity state of PKS 1510−089 in 2011

scholarly article
VLBI observations of bright AGN jets with the KVN and VERA Array (KaVA): Evaluation of imaging capability

scientific article
A 3 Jy radio burst at a high galactic latitude

scientific article published in January 2007
Method for finding variable radio sources in drift-scan interferometric data from the Nasu Observatory

High and low galactic latitude radio transients in the Nasu 1.4 GHz wide-field survey

scientific article
A strong radio transient at high galactic latitude

Receiver gain calibration for radio observations at the Waseda Nasu pulsar observatory

scientific article
Evidence of Jet–Clump Interaction: A Flip of the Radio Jet Head of 3C 84

scientific article published in the Astrophysical Journal
A strong radio brightening at the jet base of M 87 during the elevated very high energy gamma-ray state in 2012

scientific article published in the Astrophysical Journal
Jet kinematics of the quasar 4C+21.35 from observations with the KaVA very long baseline interferometry array

scientific article
Parabolic Jets from the Spinning Black Hole in M87

scholarly article by Masanori Nakamura et al published 4 December 2018 in The Astrophysical Journal
Observations of the bursting activity of the 6.7GHz methanol maser in G33.641-0.228

The discovery of new AGN candidates within the field of Fermi unassociated {gam}-ray sources

scholarly article
Millimeter VLBI observations of Sgr A* with KaVA and KVN

Radio variability of a Fermi large area telescope bright source 0FGL J1847.8+3223

scientific article
Pilot KaVA monitoring on the M 87 jet: Confirming the inner jet structure and superluminal motions at sub-pc scales

scientific article published in January 2017
VERA monitoring of the radio jet 3C 84 in the period of 2007–2013: Detection of non-linear motion

scientific article
OISTER optical and near-infrared monitoring observations of peculiar radio-loud active galactic nucleus SDSS J110006.07+442144.3

scientific article published in January 2017
Probing the precise location of the radio core in the TeV blazar Mrk 501 with VERA at 43 GHz

The automatic radio burst search system at Nasu observatory

Periodic flare of the 6.7-GHz methanol maser in IRAS 22198+6336

scientific article published in January 2014
Observations of 6.7GHz methanol masers with East-Asian VLBI Network. I. VLBI images of the first epoch of observations

scientific article published in January 2014
Reliability of radio transients detected in the Nasu sky survey

scientific article published in January 2014
6.7-GHz observations of the RS CVn type star HR1099 after the large X-ray flare

scientific article published in January 2017
A face-on accretion system in high-mass star formation: possible dusty infall streams within 100 AU

scientific article published in January 2017
A strong radio brightening at the jet base of M87 during the elevated very-high-energy γ-ray state in 2012

Intermittent maser flare around the high-mass young stellar object G353.273 + 0.641 - II. Detection of a radio and molecular jet

scientific article published in January 2013
Possible detection of apparent superluminal inward motion in Markarian 421 after the giant X-ray flare in 2010 February

scientific article published in January 2012
The off-axis jet structure in Mrk 501 at mm-wavelengths

The Hitachi and Takahagi 32 m radio telescopes:Upgrade of the antennas from satellite communication to radio astronomy

scientific article published in January 2016
Asymmetric sub-reflectors for spherical antennas and interferometric observations with an FPGA-based correlator

Accelerating a water maser face-on jet from a high mass young stellar object

scientific article published in January 2016
Performance of VERA in the phase-referencing astrometry

scientific article published in January 2010
A comparative study of amplitude calibrations for the East Asia VLBI Network: A priori and template spectrum methods

article
Radio observations of outburst from V404 Cyg at 1.4GHz

scientific article
The GENJI Programme: Gamma-Ray Emitting Notable AGN Monitoring by Japanese VLBI

scholarly article
Radio observations of outburst from V404 Cyg at 1.4GHz: a fast decay appeared in the nine days light curve

scientific article published in January 2015
Astrometry of H2O masers in the massive star-forming region IRAS 06061+2151 with VERA

Quick-look data analysis in the NASU radio transient search project

A flare of methanol maser in S255

scientific article published in January 2015
Precessing jet nozzle connecting to a spinning black hole in M87

scientific article published on 27 September 2023
Two 1.4 GHz sky atlases at declination 32{deg} to 42{deg} in Nasu Radio-Transient Search Project

scholarly article
Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign

scholarly article
Rebrightening of Cygnus X-3 observed with Nasu telescope array at 1.4GHz

Rapid fringe detection technique for discovering radio transients in Nasu drift-scan data

scientific article published in January 2013

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