Complete public portfolio · generated from GitHub
Every public repository is linked in server-rendered HTML for people and search crawlers. Descriptions come from the repository record; interactive visualizations and code remain one click away.
Showing all 111 repositories
Interactive exoplanet transit-analysis laboratory for real and simulated light curves, transit geometry, residual structure, target comparison, time-series diagnostics and reproducible visual exploration of transit evidence.
Research portfolio of Biswajit Jana covering astrophysics, astronomical instrumentation, exoplanets, precision radial-velocity spectroscopy, scientific computing, open research projects and interactive scientific tools.
Automatically refreshed discovery index for Biswajit Jana astronomy research software, live scientific projects, source repositories and project sitemaps.
MSc astrophysics thesis on closed-loop thermal and adaptive-optics stabilization for EXOhSPEC extreme-precision radial-velocity spectroscopy, documenting control design, detector stability experiments, instrument telemetry and reproducible analysis.
Interactive 3D research knowledge graph mapping methods, instruments and concepts near a field's frontier from public code and literature signals, seeded with EPRV instrumentation.
EPRV Spectrograph Landscape: source-audited atlas of extreme-precision radial-velocity instrument design, calibration, stability, measured performance and operational status.
Interactive 3D hypercube atlas for high-dimensional geometry, exact n-cube construction through 8D and analytical sampled projections from 0D to 50D.
Reproducible audit of 2,000 public NEID solar RV exposures: nightly variability, irregular-cadence structure and quality-cut sensitivity.
Reproducible fast radio burst dispersion measure laboratory for simulation, scientific visualization, parameter exploration and quantitative analysis. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Reproducible microlensing event laboratory for simulation, scientific visualization, parameter exploration and quantitative analysis. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Browser-native astronomy platform combining Solar System exploration, Mars terrain, EarthOps, NASA Exoplanet Archive data, ISS tracking, NEO/interstellar-object monitoring, stellar atlases and provenance-aware public space data.
Exo-Earth direct-imaging cadence benchmark for revisit strategy, detection completeness, orbital phase coverage, yield and time-allocation trade-offs, built as a reproducible framework for future mission survey planning.
Interactive astronomy visualization project combining astrophysical animations, scientific storytelling, WebGL/Three.js scenes and browser-based simulations to make research concepts and space data easier to explore visually.
Nearby warm super-Earth transit study using real TESS Sector 22 photometry, timing-adjusted transit fitting and correlated-noise diagnostics, with NASA Exoplanet Archive provenance and reproducible uncertainty-aware analysis.
Warm Saturn transit study using real TESS photometry, timing and correlated-noise diagnostics, with atmospheric-escape context for a low-density planet orbiting an active K star.
Warm super-Earth transit study using multiple TESS sectors to test consistency, timing and correlated noise, explicitly preserving mixed evidence rather than over-combining weak detections.
Interactive cosmology and light-cone visualization project for exploring cosmic history, distance, redshift and observable-universe structure. Designed as a browser-based scientific exploration layer with interactive graphics, simulation and data-driven context.
Reproducible laboratory for all 256 elementary cellular automata, measuring entropy, activity, temporal change, Lempel-Ziv novelty and edge structure to study emergent computation with exportable JSON/CSV results.
Collection of reproducible astronomy notebooks covering astrophysics, observational data, simulations and scientific-computing exercises. Includes documented computational analysis, visualization and reproducible workflows appropriate to the project scope.
Hot-Neptune desert case study using real TESS transit photometry, timing diagnostics and literature context for LTT 9779 b's unusually reflective cloudy dayside and survival in a sparsely populated regime.
Warm-Neptune transit reanalysis using real TESS photometry, timing-adjusted fitting and correlated-noise diagnostics, with published atmospheric findings kept separate as literature context.
Interactive guide to gravitational-microlensing exoplanet detection, with physical intuition, signal geometry, detection limits and reproducible exoplanet examples. Covers the observable signal, governing physics, detection limits and reproducible examples for method comparison.
Super-puff exoplanet stress test using real TESS photometry and predeclared model-selection thresholds, preserving a scientifically useful null result when the transit does not meet the support criterion.
Inflated hot-Jupiter transit study using real TESS photometry, timing-adjusted fitting and correlated-noise scaling, with haze/cloud and stellar-activity context kept distinct from the measured transit analysis.
Ultra-short-period lava-world study using Spitzer secondary-eclipse measurements to infer season-dependent dayside brightness temperatures for 55 Cancri e and compare them reproducibly with published values.
Reproducible pulsar timing laboratory for simulation, scientific visualization, parameter exploration and quantitative analysis. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Extreme low-density giant-planet transit study using real TESS photometry to examine timing, depth and correlated-noise behavior for the highly inflated, low-gravity atmosphere of WASP-127 b.
Interactive universe visualization project exploring astronomical scales, objects and scientific concepts through browser-based graphics. Designed as a browser-based scientific exploration layer with interactive graphics, simulation and data-driven context.
Temperate sub-Neptune transit study in a compact M-dwarf system, using real TESS photometry to examine timing and transit support while stating the limits of broadband data for atmospheric claims.
Interactive wormhole and spacetime visualization for exploring general-relativity concepts, geometry and scientific simulation. Includes documented computational analysis, visualization and reproducible workflows appropriate to the project scope.
Dense hot-Saturn study pairing real TESS transit analysis with JWST atmospheric context for carbon dioxide, water and HD 149026 b's unusually large heavy-element inventory.
Reproducible gravitational-wave chirp laboratory for simulation, scientific visualization, parameter exploration and quantitative analysis. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Interactive gravitational-lensing laboratory for Einstein rings, lens geometry, magnification and mass-dependent image distortion. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Interactive guide to direct-imaging exoplanet detection, with physical intuition, signal geometry, detection limits and reproducible exoplanet examples. Covers the observable signal, governing physics, detection limits and reproducible examples for method comparison.
Reproducible astronomical interferometry baseline laboratory for simulation, scientific visualization, parameter exploration and quantitative analysis. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Rocky super-Earth atmosphere study combining real TESS transit photometry with JWST/NIRSpec G395H transmission spectroscopy, testing a largely flat spectrum and what low-metallicity hydrogen atmospheres can be excluded.
Highly inflated hot-Jupiter study combining a corrected TESS transit with three independent JWST/NIRISS dayside-emission reductions to examine water emission and reduction consistency.
Ultra-hot Jupiter study combining real TESS transits with multiple JWST dayside-spectrum reductions to examine thermal inversion, water emission, extreme irradiation and reduction-to-reduction consistency.
Reproducible 21 cm neutral-hydrogen line laboratory for simulation, scientific visualization, parameter exploration and quantitative analysis. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Interactive guide to radial-velocity exoplanet detection, with physical intuition, signal geometry, detection limits and reproducible exoplanet examples. Covers the observable signal, governing physics, detection limits and reproducible examples for method comparison.
Interactive guide to transit-photometry exoplanet detection, with physical intuition, signal geometry, detection limits and reproducible exoplanet examples. Covers the observable signal, governing physics, detection limits and reproducible examples for method comparison.
Interactive research-universe portfolio for Biswajit Jana, linking astrophysics, astronomical instrumentation, exoplanets, precision-control systems and scientific software through a Three.js research graph and static-hosted WebGL experience.
Galaxy rotation-curve laboratory for dark-matter evidence, baryonic components, circular velocity and mass-model comparison. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Research-driven exploration of cosmic origins, inflation, multiverse cosmology, pre-Big-Bang scenarios, mathematical models and reproducible simulations.
Benchmark hot-Jupiter atmosphere study using public JWST/MIRI transmission spectra to examine magnesium-silicate cloud evidence and the consistency of four correlated reduction-tree products.
Habitable-zone rocky-exoplanet atmosphere study using decontaminated JWST/NIRSpec PRISM transmission spectroscopy to test spectral flatness and clearly separate measured constraints from atmospheric interpretation.
Ultra-hot Jupiter atmosphere study using phase-resolved JWST/NIRSpec G395H emission spectroscopy to measure day-night brightness-temperature contrast, with reproducible uncertainty propagation and archive-backed system context.
Hot-Jupiter atmosphere study using public JWST/NIRCam transmission spectroscopy to measure spectral contrasts and compare them with published H2S and molecular-detection evidence for HD 189733 b.
Reproducible JWST/NIRISS audit of WASP-107 b: broad atmosphere spectrum, resolved helium triplet, and extended-thermosphere light curve.
Reproducible JWST/NIRSpec audit of LHS 475 b across 13 atmosphere scenarios and three reduction pipelines.
Reproducible audit of all 12 public WASP-96 b JWST transmission products, resolution hierarchy, and morning/evening limb inference limits.
Reduced-order likelihood inference on the public four-instrument JWST WASP-39 b benchmark spectrum, with explicit model-inadequacy diagnostics.
Exoplanet atmosphere signal laboratory for transmission features, spectral detectability, noise and atmospheric characterization. Includes documented computational analysis, visualization and reproducible workflows appropriate to the project scope.
Orbital-decay hot-Jupiter study using real TESS transit timing, ephemeris-drift diagnostics and reproducible model comparison for WASP-12 b, an extremely irradiated planet spiralling toward its star.
Ultra-short-period hot-Jupiter transit study using real TESS photometry with timing freedom and explicit noise inflation, designed for a strongly irradiated system where stellar variability can matter.
Source-linked Habitable Worlds Observatory target-evidence atlas for organizing candidate-star and exoplanet context, mission-relevant evidence, provenance, diagnostics and explicit measurement limits for future direct-imaging studies.
Interactive exoplanet orbital-dynamics laboratory for resonances, stability, multi-planet systems and reproducible N-body experiments. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Warm-Neptune atmosphere study pairing a reproducible TESS transit fit with JWST context for sulfur dioxide and disequilibrium photochemistry, plus a source-graded review of molecular evidence.
Nearby super-Earth transit study at the rocky/volatile-rich atmosphere boundary, using real TESS photometry, timing-aware fitting and reproducible diagnostics with NASA Exoplanet Archive provenance.
Interactive adaptive-optics wavefront laboratory for exploring aberrations, wavefront sensing and correction through reproducible simulations, parameter controls and scientific visualization relevant to astronomical instrumentation.
Reproducible asteroseismology oscillation modes laboratory for simulation, scientific visualization, parameter exploration and quantitative analysis. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Collection of browser-based mini-games and interactive coding experiments. Includes documented computational analysis, visualization and reproducible workflows appropriate to the project scope.
Interactive blackbody-radiation visualizer for Planck spectra, Wien's law, temperature and thermal emission physics. Includes documented computational analysis, visualization and reproducible workflows appropriate to the project scope.
Reproducible cosmic microwave background acoustic peaks laboratory for simulation, scientific visualization, parameter exploration and quantitative analysis. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Astronomical cosmic-ray cleanup laboratory for detecting, masking and auditing particle-hit contamination in imaging data, with reproducible before/after diagnostics and explicit separation of cleaning from scientific signal.
Machine-learning research project for biosignature-oriented exoplanet spectra, atmospheric feature detection and interpretable classification. Includes source-aware analysis, reproducible outputs and explicit scientific limitations.
Exploratory data-analysis project examining disease and symptom relationships with Python-based visualization and statistical summaries. Includes documented computational analysis, visualization and reproducible workflows appropriate to the project scope.
Interactive Doppler-shift visualizer connecting wavelength shifts, radial velocity and astronomical spectroscopy. Includes documented computational analysis, visualization and reproducible workflows appropriate to the project scope.
Euclid spectroscopy quality-control project for spectral extraction, contamination, observational diagnostics and data-quality limits, designed to make measurement quality and failure modes explicit and reproducible.
EXOhSPEC thorium-argon spectral atlas built from measured FITS exposures and NIST reference lines, with detector-space line diagnostics, exposure comparisons and calibration-focused analysis for high-resolution radial-velocity spectroscopy.
Gaia stellar-pair analysis for common proper motion, parallax consistency and binary-candidate diagnostics, using reproducible catalogue analysis to distinguish physically associated systems from chance alignments.
Reproducible galaxy clustering correlation functions laboratory for simulation, scientific visualization, parameter exploration and quantitative analysis. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Gamma-ray-burst timing analysis for transient light curves, durations, temporal structure and high-energy astrophysics. Includes documented computational analysis, visualization and reproducible workflows appropriate to the project scope.
Warm-Neptune atmospheric-escape study using public CARMENES helium 10830 A transit data, with reproducible in/out-of-transit statistics and clear separation from the source paper's published helium detection.
Beginner-friendly but real-data exoplanet transit-photometry notebook using TESS, Lightkurve and NASA Exoplanet Archive parameters to recover HD 189733 b transits, measure depth and estimate simple planet-size quantities in Google Colab.
Interactive Hertzsprung-Russell diagram laboratory for stellar temperature, luminosity, spectral class and stellar evolution. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
JWST/NIRSpec microshutter-array diagnostic for shutter behavior, light leakage and spectroscopy systematics, using reproducible instrument-focused analysis to examine data-quality impacts and measurement limits.
Signal-and-noise simulation laboratory for synthetic time series, SNR, filtering and detection-method experiments. Includes documented computational analysis, visualization and reproducible workflows appropriate to the project scope.
Interactive physics visualization exploring quantum tunneling concepts alongside spacetime-inspired simulation and scientific graphics. Includes documented computational analysis, visualization and reproducible workflows appropriate to the project scope.
Reproducible reaction-diffusion morphogenesis laboratory for simulation, scientific visualization, parameter exploration and quantitative analysis. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Python workflow for reading, exploring and plotting Voyager spacecraft data for reproducible space-science analysis. Includes documented computational analysis, visualization and reproducible workflows appropriate to the project scope.
SDSS sky-glow and background-systematics analysis using public spectroscopic data, source-linked provenance and reproducible diagnostics to examine sky emission, contamination and measurement limits in astronomical spectra.
Interactive spectral noise-budget studio for photon noise, detector noise, throughput and precision limits in astronomical spectroscopy. Includes documented computational analysis, visualization and reproducible workflows appropriate to the project scope.
TESS stray-light systematics study using source-linked mission data and reproducible diagnostics to examine background contamination, photometric quality and the observational limits imposed by scattered light.
Hot-Saturn atmosphere study pairing a timing-adjusted TESS transit with public JWST/NIRSpec transmission spectroscopy, including the prominent carbon-dioxide feature and reproducible spectral diagnostics.
Hot-Jupiter weather study combining a corrected TESS transit with phase-resolved JWST/MIRI spectroscopy to examine day-night thermal contrast, orbital phase behavior and reproducible atmospheric diagnostics.
Warm-Jupiter atmosphere study combining real TESS transit analysis with public JWST transmission and emission spectra to audit methane chemistry, water models and evidence across both observing geometries.
Reproducible Type Ia supernova Hubble diagram laboratory for simulation, scientific visualization, parameter exploration and quantitative analysis. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Interactive radial-velocity and Doppler-spectroscopy observatory connecting stellar spectra, wavelength shifts, orbital motion and exoplanet signals with the measurement challenges of precision radial-velocity astronomy.
Reproducible spectrograph radial-velocity precision laboratory for simulation, scientific visualization, parameter exploration and quantitative analysis. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Reproducible cosmic shear tomography laboratory for simulation, scientific visualization, parameter exploration and quantitative analysis. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
GitHub profile hub for Biswajit Jana, connecting astrophysics, astronomical instrumentation, exoplanet research, scientific computing, reproducible data analysis and the strongest public research repositories in the portfolio.
Reproducible coronagraph dark-hole and wavefront-control laboratory for high-contrast imaging, exploring suppression, control regions and instrument behavior through parameterized simulations and scientific visualization.
Nancy Grace Roman Space Telescope microlensing-readiness project for event detection, cadence, source-linked diagnostics and reproducible analysis, focused on the measurement and pipeline challenges of future Galactic exoplanet surveys.
Hubble charge-transfer-efficiency trail study using source-linked detector data and reproducible diagnostics to examine readout-induced morphology, CTI/CTE systematics and their impact on astronomical image measurements.
LATTICE: falsification-driven research on space-radiation environments, astronomical CCD damage and charge-transfer inefficiency, combining HST measurements, Euclid/Gaia audits, radiation proxies, state-space inference and explicit validation gates.
Reproducible dark-matter lensing auditor for mass models, lensing observables, assumptions and consistency checks. Includes documented computational analysis, visualization and reproducible workflows appropriate to the project scope.
Reproducible technosignature Doppler-search project for narrowband signal drift, radio-astronomy detection logic, candidate diagnostics and transparent limits, built around source-aware analysis rather than black-box classification.
Reproducible exoplanet injection-recovery benchmark comparing Box Least Squares with wavelet-scattering transit detection across synthetic light curves, red noise and flares, preserving negative results and method limitations.
Cross-archive astronomy provenance framework for source identity, metadata reconciliation, catalogue crossmatching, reproducible joins and traceable scientific datasets across heterogeneous public astronomical archives.
Multi-survey galaxy-morphology laboratory testing whether structural conclusions survive changes in redshift, wavelength, depth, pixel scale and telescope resolution, using CEERS/JWST data, cross-survey provenance and recoverability benchmarks.
Euclid galaxy-morphology consistency study comparing structural measurements, shape estimates and catalogue agreement while auditing imaging systematics, data quality and reproducibility across morphological observables.
Euclid stellar-shape and PSF diagnostic for image-quality assessment, weak-lensing calibration and shape-measurement consistency, using reproducible analysis of observational data and explicit quality limits.
Quantitative Betelgeuse research observatory combining public ALMA diagnostics, red-supergiant physics, historical evidence, hydrodynamic visualization, uncertainty-aware forecasting and reproducible scientific analysis.
Hubble infrared ramp-systematics diagnostic using source-linked observations and reproducible checks to examine detector settling, time-dependent flux behavior and the limits these effects place on precision photometry.
Open exoplanet-discovery laboratory for transit and radial-velocity signals, candidate testing, public data and reproducible detection workflows. Uses reproducible numerical experiments, parameter exploration and quantitative scientific visualization.
Archive-driven, reproducible search for Earth-like exoplanets using public catalogues, habitable-zone filters, planetary parameters, Bayesian reasoning, provenance checks and interactive visual analysis to narrow thousands of records into high-interest candidates.
Temperate sub-Neptune atmosphere audit combining public JWST NIRISS, NIRSpec and MIRI spectra to test disputed molecular features, inter-instrument offsets and the evidence limits around K2-18 b's atmospheric interpretation.
Mini-Neptune climate study using public JWST/MIRI phase-curve spectra to infer wavelength-dependent day/night brightness temperatures for GJ 1214 b and test thermal-emission structure behind its historically flat transmission spectrum.
Compact research-reproducibility and repository-validation project with provenance metadata, reference anchors, numerical checks and auditable validation scripts for testing source integrity and reproducible scientific outputs.
Interactive browser-based PID tuning laboratory with real-time simulation, plant models, P/I/D visualization, automatic tuning methods, disturbances, actuator dynamics, performance metrics and control-system analysis.