OOIR: Observatory of International Research

Papers

(The TQCC of Publications of the Astronomical Society of Japan is 5. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-05-01 to 2026-05-01.)

Article	Citations
Inference of magnetic field during the Dalton minimum: Case study with recorded sunspot areas	49
Photometric analysis on RZ Horologii: An evolved and active Algol with a δ Scuti component	44
Steady jet ejections from the innermost region of advection-dominated accretion flow around a black hole	42
On the X-ray efficiency of the white dwarf pulsar candidate ZTF J190132.9+145808.7	42
12CO and 13CO observation of the low-metallicity dwarf galaxy DDO 154	33
A catalog of molecular clouds possibly associated with Galactic infrared bubbles. I. The southern Galactic plane	28
Cosmological evolution of dark matter subhaloes under tidal stripping by growing Milky Way-like galaxies	28
KIC 7914906: An eclipsing heartbeat star with tidally excited oscillations and gamma Doradus/delta Scuti hybrid pulsations	28
Strong ionospheric activity at the MWA site associated with plasma bubble measured by GNSS	25
Identifying hot subdwarf stars from photometric data using a Gaussian mixture model and graph neural network	24
Dynamical properties of mildly relativistic ejecta produced by the mass-loading of gamma-ray burst jets in dense ambient media	23
A statistical approach to interpreting polarized dust emission of filamentary molecular clouds toward an estimate of 3D magnetic field structure	22
Surface accretion as a dust retention mechanism in protoplanetary disks. I. Formulation and proof-of-concept simulations	22
XRISM high-resolution spectroscopy of SS 433: Evidence of decreasing line-of-sight velocity dispersion along the jet	22
Introduction to Faraday tomography and its future prospects	21
Measurement of the zodiacal light absolute intensity through Fraunhofer line spectroscopy of the night sky with the Hale telescope	21
First detection of X-ray polarization and its short-term increase pre- and post-eclipse in the high-mass X-ray binary 4U 1700–377	21
ALMA detection of 321 GHz water maser emission in the radio galaxy NGC 1052	21
Hadronic origin of the very high-energy gamma-ray emission from the low-luminosity AGN in NGC 4278	20
A new candidate of a cluster of galaxies behind the Galactic plane, AX J145732-5901	19
Retraction of: Transient jet ejections associated with limit-cycle behaviors in the very high state of black hole binaries	19
Benchmark of the Fe xxv ???? ratio in photoionized plasma during eclipse of Centaurus X-3 with XRISM/Resolve	19
A global two-layer radiative transfer model for axisymmetric, shadowed protoplanetary disks	19
Suzaku observation of an iron K-shell line in the spiral galaxy NGC 6946	18
Nobeyama 45 m CO J = 1–0 observations of luminous type 1 AGNs at z ≈ 0.3	18

A universal scaling relation incorporating the cusp-to-core transition of dark matter halos	17
Detection of six massive contact binaries with tertiary component candidates in the Small Magellanic Cloud	17
XRISM observations of Cassiopeia A: Overview, atomic data, and spectral models	16
Astrometric VLBI observations of H2O masers in an extreme OH/IR star candidate NSV 17351	16
On the influence of shock–cloud interactions on the nonthermal X-ray emission from the supernova remnant RCW 86	15
PNV J00444033+4113068: Early superhumps with 0.7 mag amplitude and non-red color	15
The symbiotic and bipolar nebula M 2-9: Morphological variability of the collimated ionized wind arising from the core	15
Finite element analysis and high-precision molding of a novel panel unit based on the Leighton Chajnantor Telescope	15
Nitrogen transport in protoplanetary disks by ammonium salts: A possible origin of Jupiter’s nitrogen enrichment	14
Exploring the cosmic dawn and epoch of reionization with the 21 cm line	14
Long-term spectral variations of V Sagittae: Two spectroscopic states with red- or blue-shifted emission wings of H i and He ii	13
Survey of non-thermal electrons around supermassive black holes through polarization flips	13
Gaia DR2 and EDR3 data and evolutionary status of post-AGB stars with high radial velocities	13
Search for quasi-periodic oscillations of AGNs in the Swift BAT 157-month hard X-ray survey	13
Impact of the Lyα radiation force on super-Eddington accretion on to a massive black hole	13
An expanding ring of the hypercompact H ii region W 49 N:A2	12
The Subaru-Asahi StarCam: Description of the system	12
Three-dimensional core-collapse supernova models with phenomenological treatment of neutrino flavor conversions	12
Magnetic field of solar prominences obtained from spectropolarimetric observations in He i 10830 Å	12
Molecular clouds at the eastern edge of radio nebula W 50	11
Spatial structure and dynamical state of the old open cluster Collinder 261 based on a clustering method	11
Resonant scattering at the center of the galaxy cluster PKS 0745-191 with XRISM	11
Red giant winds driven by Alfvén waves with magnetic diffusion	11
The history of the Milky Way: The evolution of star formation, cosmic rays, metallicity, and stellar dynamics over cosmic time	11
Origin and evolution of the Ω structure in the head-tail radio galaxy of Abell 3322	10
The Milky Way tomography with Subaru Hyper Suprime-Cam. I. Halo substructures	10
Magnetic configurations related to the coronal heating and solar wind generation. II. Quantitative characterization of active-region magnetic structure based on the geometric property of force-free α	10
Detection of a new molecular cloud in the LHAASO J2108+5157 region supporting a hadronic PeVatron scenario	10
Discovery of free precession in the magnetar SGR 1806−20 with the ASCA Gas Imaging Spectrometer	10
Seimei/KOOLS-IFU mapping of the gas and dust distributions in Galactic PNe: Unveiling the origin and evolution of the Galactic halo PN H4-1	10
The role of resistivity in hot accretion flows with anisotropic pressure: Comparing magnetic field models	10
Clumpy-gas radiation hydrodynamics: Formulation	10
Energy transfer from jets to surrounding matter to form lateral lobes in SS 433/W 50	10
Discovery of diffuse radio source in Abell 1060	10
A search for water vapor plumes on Europa by spatially resolved spectroscopic observation using Subaru/IRCS	9
Bar-informed kinematic-distance mapping of molecular gas in the inner Milky Way	9
Outflowing photoionized plasma in Circinus X-1 using the high-resolution X-ray spectrometer Resolve onboard XRISM and the radiative transfer code `cloudy`	9
The asymmetric sunrise effect on Thales’ alleged measurement of the Sun angular size	9
Constraining the corona geometry of Cyg X-1 with broad-band spectrum and polarimetric analysis based on observations in 2022 May	9
MK-like spectral classification for hot subdwarf stars with LAMOST spectra	9
XRISM observations of solar flare X-ray emission reflected in the Earth’s atmosphere	9
Modeling of geocoronal solar wind charge exchange events detected with Suzaku	9
Oscillating wind accretion due to X-ray inhibition of line-driven mechanism	9
Gamma-ray bursts, supernovae Ia, and baryon acoustic oscillations: A binned cosmological analysis	9
XRISM high-resolution X-ray spectroscopy of Cygnus X-1: Highly ionized iron absorption structures	9
Cosmic ray and interstellar gas properties in the solar neighborhood revealed by diffuse gamma-rays	8
Solar eclipses observed worldwide in the first half of the 15th century and ΔT determined from multiply observed eclipses	8
Quantitative analysis of the molecular gas morphology in nearby disk galaxies	8
On the meteor clusters detected over Hawai’i in 2023 and 2024	8
Impact of turbulent magnetic fields on disk formation and fragmentation in first star formation	8

Coronal non-thermal and Doppler plasma flows driven by photospheric flux in 28 active regions	8
Cloud–cloud collisions in the Antennae galaxies: Does high-speed collision suppress star formation?	8
Discovery of an X-ray bridge between the comma-shaped gas and the main cluster in MCXC J0157.4-0550	8
Dynamics of the intermediate-mass-element ejecta in the supernova remnant Cassiopeia A studied with XRISM	8
Near-infrared [P ii ] and [Fe ii ] line mapping of Galactic supernova remnants	8
The orbital solution and dynamical masses of the binary system V* PX Virginis	8
Smart Kanata: A framework for autonomous decision-making in rapid follow-up observations of cataclysmic variables	8
A deep analysis for New Horizons’ KBO search images	8
Gravitational collapse of white dwarfs to neutron stars: From initial conditions to explosions with neutrino-radiation hydrodynamics simulations	8
W 49 N MCN-a: A disk-accreting massive protostar embedded in an early-phase hot molecular core	7
The LMT 2 millimeter receiver system (B4R). II. Science demonstration observations toward Orion-KL/OMC-1	7
The mass of TOI-519 b: A close-in giant planet transiting a metal-rich mid-M dwarf	7
Multicolor and multi-spot observations of Starlink’s Visorsat	7
Analysis of methods for optical-band light curves	7
Wavelets and sparsity for Faraday tomography	7
Multiwavelength studies of G298.6−0.0: An old GeV supernova remnant interacting with molecular clouds	7
Central concentration of warm and dense molecular gas in a strongly lensed submillimeter galaxy at z = 6	7
Distance determination of molecular clouds in the first quadrant of the Galactic plane using deep learning: I. Method and results	7
A close-in planet orbiting giant star HD 167768	7
Analyses of historical solar eclipse records in Hokkaido Island in the 18–19th centuries	7
Seimei KOOLS-IFU mapping of the gas and dust distributions in Galactic PNe: The origin and evolution of DdDm 1	7
Galaxy clusters at z ∼ 1 imaged by ALMA with the Sunyaev–Zel’dovich effect	7
Orbital inclination estimates for overcontact binaries using the derivatives of light curves	7
Evolution of X-ray and optical rapid variability during the low/hard state in the 2018 outburst of MAXI J1820+070 = ASASSN-18ey	7
The star formation and chemical evolution histories of the Ursa Minor dwarf spheroidal galaxy	6
Broad-band non-thermal emission of odd radio circles induced by explosive galactic outflow remnants and their evolution	6
Ka-band cryogenic low-noise receiver of the Misasa 54 m antenna for deep-space communications and radio astronomy	6
Searching for the signature of fast radio burst by Swift/XRT X-ray afterglow light curve	6
Water maser disk and a supermassive black hole at the nucleus of the active galaxy NGC 7738	6
A dichotomy of the mass–metallicity relation of exoplanetary atmospheres demarcated by their birthplace	6
Bridging the gap: Consistent modeling of protoplanetary disk heating and gap formation by planet-induced spiral shocks	6
A systematic study on the aromatic and aliphatic hydrocarbon emission features of nearby galaxies using AKARI near-IR spectra	6
The possible long-term periodic variability of the extremely luminous quasar WISE J090924.01+000211.1	6
XRISM spectroscopy on orbital modulation of Fe Lyα lines in Cygnus X-3	6
Radiation and outflow properties of super-Eddington accretion flows around various mass classes of black holes: Dependence on the accretion rates	6
Corrigendum: Flare from the secondary star of an extreme period binary	6
Water maser distributions and their internal motions in the Sagittarius B2 complex	6
The supernova remnant G284.3-1.8 and its relation to the gamma-ray binary 1FGL J1018.6-5856	6
XMM-Newton view of the shock heating in an early merging cluster, CIZA J1358.9−4750	6
Upper limit on the coronal cosmic ray energy budget in Seyfert galaxies	6
Galaxy Cruise: Deep Insights into Interacting Galaxies in the Local Universe	6
Moving object detection from multi-depth images with an attention-enhanced convolutional neural network	6
A bibliometric analysis of the scholarly impact of early Subaru Telescope-based publications	6
E/B mode decomposition of HSC-Y1 cosmic shear using COSEBIs: Cosmological constraints and comparison with other two-point statistics	6
BVRI polarization of stars in the direction of Stock 19	6
Thermal and kinematic properties of ejecta in SN1987A revealed by XRISM	6
X-ray study of the propagation of non-thermal particles in microquasar SS 433/W 50 extended jets	5
KAgoshima Galactic Object survey with Nobeyama 45 m telescope by Mapping in Ammonia lines (KAGONMA): Discovery of parsec-scale CO depletion in the Canis Major star-forming region	5
ANDICAM I- and J-band monitoring of bright inner Galactic late-type stars	5
Is the low-energy tail of shock-accelerated protons responsible for over-ionized plasma in supernova remnants?	5
Optimizing infrasound observations for sample return capsule re-entry: Insights from OSIRIS-REx and Hayabusa2	5
Effects of depolarizing intervening galaxies on background radio emission. I. Global disk magnetic field	5
Evidence of non-solar elemental composition in the clocked X-ray burster SRGA J144459.2-604207	5
The eclipsing γ Doradus star V421 Pegasi	5
Head–tail molecular clouds falling on to the Milky Way disk	5
Sub-parsec-scale jet-driven water maser with possible gravitational acceleration in the radio galaxy NGC 1052	5
Revisiting planetary systems in the Okayama Planet Search Program: A new long-period planet, RV astrometry joint analysis, and a multiplicity-metallicity trend around evolved stars	5
Rotation and stability of the circumnuclear gas disk in the Galactic Center potential by the ALMA CMZ Exploration Survey (ACES)	5
Sulfur isotopes toward the extended envelope of Sagittarius B2 in the Galactic Center	5
Survivability of amorphous ice in comets depends on the latent heat of crystallization of impure water ice	5
A possible shutting-down event of mass accretion in an active galactic nucleus at z ∼ 1.8	5
First photometric investigation of OGLE-SMC-ECL-2063: A low-metallicity massive contact binary in the SMC	5
Decadal brightening in the north-eastern non-thermal filament of Cassiopeia A	5
The trigonometric parallax of IRAS 23385+6053 and physical properties of molecular clouds based on the VLBI astrometry	5
Statistical X-ray analysis of gamma-ray-emitting radio galaxies	5
Deblurring galaxy images with Tikhonov regularization on magnitude domain	5