OOIR: Observatory of International Research

Papers

(The TQCC of Publications of the Astronomical Society of Japan is 4. 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 2021-07-01 to 2025-07-01.)

Article	Citations
KIC 7914906: An eclipsing heartbeat star with tidally excited oscillations and gamma Doradus/delta Scuti hybrid pulsations	230
ALMA detection of 321 GHz water maser emission in the radio galaxy NGC 1052	53
Measurement of the zodiacal light absolute intensity through Fraunhofer line spectroscopy of the night sky with the Hale telescope	35
Photometric analysis on RZ Horologii: An evolved and active Algol with a δ Scuti component	34
Identifying hot subdwarf stars from photometric data using a Gaussian mixture model and graph neural network	33
Introduction to Faraday tomography and its future prospects	21
Inference of magnetic field during the Dalton minimum: Case study with recorded sunspot areas	21
Do blue galaxy-clusters have hot intracluster gas?	20
Dynamical properties of mildly relativistic ejecta produced by the mass-loading of gamma-ray burst jets in dense ambient media	18
Strong ionospheric activity at the MWA site associated with plasma bubble measured by GNSS	18
Cosmological evolution of dark matter subhaloes under tidal stripping by growing Milky Way-like galaxies	17
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	17
A statistical approach to interpreting polarized dust emission of filamentary molecular clouds toward an estimate of 3D magnetic field structure	17
Abundances of phosphorus in bright F-G type main-sequence stars	17
Steady jet ejections from the innermost region of advection-dominated accretion flow around a black hole	16
On the X-ray efficiency of the white dwarf pulsar candidate ZTF J190132.9+145808.7	15
12CO and 13CO observation of the low-metallicity dwarf galaxy DDO 154	14
Surface accretion as a dust retention mechanism in protoplanetary disks. I. Formulation and proof-of-concept simulations	13
Detection of six massive contact binaries with tertiary component candidates in the Small Magellanic Cloud	13
A global two-layer radiative transfer model for axisymmetric, shadowed protoplanetary disks	13
Retraction of: Transient jet ejections associated with limit-cycle behaviors in the very high state of black hole binaries	13
Nobeyama 45 m CO J = 1–0 observations of luminous type 1 AGNs at z ≈ 0.3	12
The three-year shear catalog of the Subaru Hyper Suprime-Cam SSP Survey	12
Proper motions of water masers in the star-forming region IRAS 23139+5939	12
Survey of non-thermal electrons around supermassive black holes through polarization flips	12

A new formation scenario of a counter-rotating circumstellar disk: Spiral-arm accretion from a circumbinary disk in a triple protostar system	12
MeerKAT’s view of double radio relic galaxy cluster Abell 3376	12
Nitrogen transport in protoplanetary disks by ammonium salts: A possible origin of Jupiter’s nitrogen enrichment	11
Finite element analysis and high-precision molding of a novel panel unit based on the Leighton Chajnantor Telescope	11
A new candidate of a cluster of galaxies behind the Galactic plane, AX J145732-5901	11
Astrometric VLBI observations of H2O masers in an extreme OH/IR star candidate NSV 17351	11
Suzaku observation of an iron K-shell line in the spiral galaxy NGC 6946	11
Exploring the cosmic dawn and epoch of reionization with the 21 cm line	11
The symbiotic and bipolar nebula M 2-9: Morphological variability of the collimated ionized wind arising from the core	11
PNV J00444033+4113068: Early superhumps with 0.7 mag amplitude and non-red color	11
A universal scaling relation incorporating the cusp-to-core transition of dark matter halos	11
The history of the Milky Way: The evolution of star formation, cosmic rays, metallicity, and stellar dynamics over cosmic time	10
An expanding ring of the hypercompact H ii region W 49 N:A2	10
On the influence of shock–cloud interactions on the nonthermal X-ray emission from the supernova remnant RCW 86	10
Gaia DR2 and EDR3 data and evolutionary status of post-AGB stars with high radial velocities	10
Impact of the Lyα radiation force on super-Eddington accretion on to a massive black hole	10
Long-term spectral variations of V Sagittae: Two spectroscopic states with red- or blue-shifted emission wings of H i and He ii	10
Geomagnetic declination derived from the positional records of Martian retrograde motion in 1491	10
On the nature of the anomalous event in 2021 in the dwarf nova SS Cygni and its multi-wavelength transition	10
Discovery of stable titanium at the northeastern jet of Cassiopeia A: Need for a weak jet mechanism?	9
Corrigendum: Detailed analysis of the poorly studied northern open cluster NGC 1348 using multi-color photometry and GAIA EDR3 astrometry	9
Molecular clouds at the eastern edge of radio nebula W 50	9
Spatial structure and dynamical state of the old open cluster Collinder 261 based on a clustering method	9
Search for quasi-periodic oscillations of AGNs in the Swift BAT 157-month hard X-ray survey	9
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	8
Spatially-resolved relation between [C i] 3P1–3P0 and 12CO (1–0) in Arp 220	8
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	8
Red giant winds driven by Alfvén waves with magnetic diffusion	8
Outflowing photoionized plasma in Circinus X-1 using the high-resolution X-ray spectrometer Resolve onboard XRISM and the radiative transfer code `cloudy`	8
Axion cloud decay due to the axion–photon conversion with background magnetic fields	8
Three-dimensional core-collapse supernova models with phenomenological treatment of neutrino flavor conversions	8
Discovery of free precession in the magnetar SGR 1806−20 with the ASCA Gas Imaging Spectrometer	8
Discovery of diffuse radio source in Abell 1060	8
Testing the non-circularity of the spacetime around Sagittarius A* with orbiting pulsars	8
The role of resistivity in hot accretion flows with anisotropic pressure: Comparing magnetic field models	8
MK-like spectral classification for hot subdwarf stars with LAMOST spectra	8
The Milky Way tomography with Subaru Hyper Suprime-Cam. I. Halo substructures	8
Detection of a new molecular cloud in the LHAASO J2108+5157 region supporting a hadronic PeVatron scenario	7
Modeling of geocoronal solar wind charge exchange events detected with Suzaku	7
The orbital solution and dynamical masses of the binary system V* PX Virginis	7
Gamma-ray bursts, supernovae Ia, and baryon acoustic oscillations: A binned cosmological analysis	7
Oscillating wind accretion due to X-ray inhibition of line-driven mechanism	7
Solar eclipses observed worldwide in the first half of the 15th century and ΔT determined from multiply observed eclipses	7
The asymmetric sunrise effect on Thales’ alleged measurement of the Sun angular size	7
A search for water vapor plumes on Europa by spatially resolved spectroscopic observation using Subaru/IRCS	7
HSC-XXL: Baryon budget of the 136 XXL groups and clusters	7
Smart Kanata: A framework for autonomous decision-making in rapid follow-up observations of cataclysmic variables	6
W 49 N MCN-a: A disk-accreting massive protostar embedded in an early-phase hot molecular core	6
X-ray hot spots in the eastern ear of the supernova remnant W 50 and the microquasar SS 433 system	6
Distance determination of molecular clouds in the first quadrant of the Galactic plane using deep learning: I. Method and results	6

Seimei KOOLS-IFU mapping of the gas and dust distributions in Galactic PNe: The origin and evolution of DdDm 1	6
Dynamics of the intermediate-mass-element ejecta in the supernova remnant Cassiopeia A studied with XRISM	6
Reddening and darkening trends of on/off swirls and the relationship with magnetic field strength	6
Cloud–cloud collisions in the Antennae galaxies: Does high-speed collision suppress star formation?	6
A deep analysis for New Horizons’ KBO search images	6
Radiation and outflow properties of super-Eddington accretion flows around various mass classes of black holes: Dependence on the accretion rates	6
Multiwavelength studies of G298.6−0.0: An old GeV supernova remnant interacting with molecular clouds	6
Central concentration of warm and dense molecular gas in a strongly lensed submillimeter galaxy at z = 6	6
Evolution of X-ray and optical rapid variability during the low/hard state in the 2018 outburst of MAXI J1820+070 = ASASSN-18ey	6
Impact of turbulent magnetic fields on disk formation and fragmentation in first star formation	6
Quantitative analysis of the molecular gas morphology in nearby disk galaxies	6
Gravitational collapse of white dwarfs to neutron stars: From initial conditions to explosions with neutrino-radiation hydrodynamics simulations	6
The mass of TOI-519 b: A close-in giant planet transiting a metal-rich mid-M dwarf	6
Analyses of historical solar eclipse records in Hokkaido Island in the 18–19th centuries	6
A close-in planet orbiting giant star HD 167768	6
Wavelets and sparsity for Faraday tomography	6
Photometric observations of the potentially hazardous asteroid (99942) Apophis from Kawabe Cosmic Park	6
Intermediate luminosity type Iax supernova 2019muj with narrow absorption lines: Long-lasting radiation associated with a possible bound remnant predicted by the weak deflagration model	6
Multicolor and multi-spot observations of Starlink’s Visorsat	5
Ka-band cryogenic low-noise receiver of the Misasa 54 m antenna for deep-space communications and radio astronomy	5
XRISM spectroscopy on orbital modulation of Fe Lyα lines in Cygnus X-3	5
Water maser distributions and their internal motions in the Sagittarius B2 complex	5
Sulfur isotopes toward the extended envelope of Sagittarius B2 in the Galactic Center	5
Broad-band non-thermal emission of odd radio circles induced by explosive galactic outflow remnants and their evolution	5
Galaxy clusters at z ∼ 1 imaged by ALMA with the Sunyaev–Zel’dovich effect	5
The possible long-term periodic variability of the extremely luminous quasar WISE J090924.01+000211.1	5
Dust dissipation timescales in the intermediate and outer regions of protoplanetary disks	5
Upper limit on the coronal cosmic ray energy budget in Seyfert galaxies	5
Statistical X-ray analysis of gamma-ray-emitting radio galaxies	5
E/B mode decomposition of HSC-Y1 cosmic shear using COSEBIs: Cosmological constraints and comparison with other two-point statistics	5
Galaxy Cruise: Deep Insights into Interacting Galaxies in the Local Universe	5
XMM-Newton view of the shock heating in an early merging cluster, CIZA J1358.9−4750	5
Searching for the signature of fast radio burst by Swift/XRT X-ray afterglow light curve	5
Sub-parsec-scale jet-driven water maser with possible gravitational acceleration in the radio galaxy NGC 1052	5
Where’s Swimmy?: Mining unique color features buried in galaxies by deep anomaly detection using Subaru Hyper Suprime-Cam data	5
Origin of cool cores, cold fronts, and spiral structures in cool core clusters of galaxies	5
Magnetic field of solar dark filaments obtained from He i10830 Å spectropolarimetric observation	4
Optical photon-counting observation of the Crab pulsar with the Kanata telescope using a prototype IMONY	4
Effects of depolarizing intervening galaxies on background radio emission. I. Global disk magnetic field	4
ACA CO(J = 2–1) mapping of the nearest spiral galaxy M 33. II. Exploring the evolution of giant molecular clouds	4
Deblurring galaxy images with Tikhonov regularization on magnitude domain	4
Magnetic-field structure of the Crab pulsar wind nebula revealed with IXPE	4
ANDICAM I- and J-band monitoring of bright inner Galactic late-type stars	4
One-kiloparsec expanding cylinder of H i gas around the Galactic Center	4
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	4
X-ray study of the propagation of non-thermal particles in microquasar SS 433/W 50 extended jets	4
A super-Earth orbiting near the inner edge of the habitable zone around the M4.5 dwarf Ross 508	4
Physical properties of the molecular cloud, N4, in SS 433: Evidence for an interaction of molecular cloud with the jet from SS 433	4
Video observations of tiny near-Earth objects with Tomo-e Gozen	4
The correlation between the 500 pc scale molecular gas masses and AGN powers for massive elliptical galaxies	4
Variations in energy of cyclotron lines with double structures formed in a line-forming region with bulk motion in accreting X-ray pulsars	4
Evidence of non-solar elemental composition in the clocked X-ray burster SRGA J144459.2-604207	4
Analytic model for photometric variation due to starspots on a differentially rotating star	4
Survivability of amorphous ice in comets depends on the latent heat of crystallization of impure water ice	4
Multi-epoch X-ray spectral analysis of Centaurus A: Revealing new constraints on iron emission line origins	4
Nobeyama 45 m Local Spur CO survey. I. Giant molecular filaments and cluster formation in the Vulpecula OB association	4
Is the low-energy tail of shock-accelerated protons responsible for over-ionized plasma in supernova remnants?	4
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	4
Cosmic very small dust grains as a natural laboratory of mesoscopic physics: Modeling thermal and optical properties of graphite grains	4
Modeling photometric variations due to a global inhomogeneity on an obliquely rotating star: Application to light curves of white dwarfs	4
NuSTAR discovery of the hard X-ray emission and a wide-band X-ray spectrum from the Pictor A western hotspot	4
Low abundances of TiO and VO on the dayside of KELT-9 b: Insights from ground-based photometric observations	4
The candidates of long-periodic variable sources in 6.7 GHz methanol masers associated with four high-mass star-forming regions	4
First photometric investigation of OGLE-SMC-ECL-2063: A low-metallicity massive contact binary in the SMC	4
AstroYOLO: A hybrid CNN–Transformer deep-learning object-detection model for blue horizontal-branch stars	4
The scientific observation campaign of the Hayabusa-2 capsule re-entry	4
Decadal brightening in the north-eastern non-thermal filament of Cassiopeia A	4
Modeling of 3D trajectory of Hayabusa2 re-entry based on acoustic observations	4
BVRI polarization of stars in the direction of Stock 19	4
Predicting the 25th and 26th solar cycles using the long short-term memory method	4
Jet collision with accreting tori around SMBHs GRHD and light surface constraints in aggregates of misaligned tori	4
Can Population III stars be major origins of both merging binary black holes and extremely metal poor stars?	4