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OpenStem
@openstem · Joined Jul 2026
7420 public items8 groups
NoteAstronomy
2 MIN READING
Astronomy · L4 · Stellar Kinematics: Proper Motion, Radial Velocity & Space Velocity
Astronomy · L4 · Stellar Kinematics: Proper Motion, Radial Velocity & Space VelocityNoteAstronomy
1 MIN READING
Astronomy · L5 · Stellar Nucleosynthesis: pp Chain and CNO Cycle
Astronomy · L5 · Stellar Nucleosynthesis: pp Chain and CNO CycleNoteAstronomy
2 MIN READING
Astronomy · L5 · The Schwarzschild Black Hole: Horizon, Photon Sphere, and ISCO
Astronomy · L5 · The Schwarzschild Black Hole: Horizon, Photon Sphere, and ISCONoteAstronomy
2 MIN READING
Astronomy · L5 · Neutron Star Structure, the TOV Equation, and Pulsars/Magnetars
Astronomy · L5 · Neutron Star Structure, the TOV Equation, and Pulsars/MagnetarsNoteAstronomy
2 MIN READING
Astronomy · L5 · Gravitational Waves: Quadrupole Radiation, Chirp Signals, and Detection
Astronomy · L5 · Gravitational Waves: Quadrupole Radiation, Chirp Signals, and DetectionNoteAstronomy
2 MIN READING
Astronomy · L5 · Cosmic Inflation: Solving the Horizon and Flatness Problems
Astronomy · L5 · Cosmic Inflation: Solving the Horizon and Flatness ProblemsNoteAstronomy
1 MIN READING
Astronomy · L5 · Dark Matter: Evidence and Candidate Particles
Astronomy · L5 · Dark Matter: Evidence and Candidate ParticlesNoteAstronomy
2 MIN READING
Astronomy · L5 · Hierarchical Structure Formation and Galaxy Assembly
Astronomy · L5 · Hierarchical Structure Formation and Galaxy AssemblyNoteAstronomy
1 MIN READING
Astronomy · L5 · Spectral Line Formation, the Curve of Growth, and Non-LTE Effects
Astronomy · L5 · Spectral Line Formation, the Curve of Growth, and Non-LTE EffectsNoteAstronomy
2 MIN READING
Astronomy · L5 · Accretion Disks: The Eddington Limit and the Alpha-Disk Model
Astronomy · L5 · Accretion Disks: The Eddington Limit and the Alpha-Disk ModelNoteAstronomy
2 MIN READING
Astronomy · L5 · Compact Object Mergers: Kilonovae and r-Process Nucleosynthesis
Astronomy · L5 · Compact Object Mergers: Kilonovae and r-Process NucleosynthesisNoteAstronomy
2 MIN READING
Astronomy · L5 · The CMB Angular Power Spectrum and Cosmological Parameters
Astronomy · L5 · The CMB Angular Power Spectrum and Cosmological ParametersNoteAstronomy
1 MIN READING
Astronomy · L5 · Planet Formation Channels and What Exoplanet Demographics Reveal
Astronomy · L5 · Planet Formation Channels and What Exoplanet Demographics RevealNoteAstronomy
1 MIN READING
Astronomy · L5 · Galactic Chemical Evolution: Yields, Enrichment Timescales, and Gradients
Astronomy · L5 · Galactic Chemical Evolution: Yields, Enrichment Timescales, and GradientsNoteAstronomy
1 MIN READING
Astronomy · L5 · Cosmological Perturbation Theory: From Jeans Instability to Structure Growth
Astronomy · L5 · Cosmological Perturbation Theory: From Jeans Instability to Structure GrowthNoteAstronomy
2 MIN READING
Astronomy · L5 · Pulsar Timing Arrays and the Nanohertz Gravitational-Wave Background
Astronomy · L5 · Pulsar Timing Arrays and the Nanohertz Gravitational-Wave BackgroundNoteAstronomy
2 MIN READING
Astronomy · L5 · Primordial Black Holes: Formation and Dark-Matter Constraints
Astronomy · L5 · Primordial Black Holes: Formation and Dark-Matter ConstraintsNoteAstronomy
2 MIN READING
Astronomy · L5 · Baryogenesis and the Sakharov Conditions
Astronomy · L5 · Baryogenesis and the Sakharov ConditionsNoteAstronomy
2 MIN READING
Astronomy · L5 · Large-Scale Structure: The Two-Point Correlation Function and the Cosmic Web
Astronomy · L5 · Large-Scale Structure: The Two-Point Correlation Function and the Cosmic WebNoteAstronomy
2 MIN READING
Astronomy · L5 · The Epoch of Reionization and the Redshifted 21 cm Line
Astronomy · L5 · The Epoch of Reionization and the Redshifted 21 cm LineNoteAstronomy
2 MIN READING
Astronomy · L5 · Tidal Disruption Events: From Stellar Shredding to Observed Flares
Astronomy · L5 · Tidal Disruption Events: From Stellar Shredding to Observed FlaresNoteAstronomy
2 MIN READING
Astronomy · L5 · Magnetars: Extreme Fields, Giant Flares, and the Fast Radio Burst Connection
Astronomy · L5 · Magnetars: Extreme Fields, Giant Flares, and the Fast Radio Burst ConnectionNoteAstronomy
2 MIN READING
Astronomy · L5 · Multi-Messenger Astronomy: Gravitational Waves, Neutrinos, and Light from One Event
Astronomy · L5 · Multi-Messenger Astronomy: Gravitational Waves, Neutrinos, and Light from One EventNoteAstronomy
2 MIN READING
Astronomy · L5 · Relativistic Jets: Doppler Beaming and Apparent Superluminal Motion
Astronomy · L5 · Relativistic Jets: Doppler Beaming and Apparent Superluminal MotionNoteAstronomy
2 MIN READING
Astronomy · L5 · Neutron-Capture Nucleosynthesis: the s-process and r-process
Astronomy · L5 · Neutron-Capture Nucleosynthesis: the s-process and r-processNoteAstronomy
2 MIN READING
Astronomy · L5 · Ultra-High-Energy Cosmic Rays & the GZK Cutoff
Astronomy · L5 · Ultra-High-Energy Cosmic Rays & the GZK CutoffNoteAstronomy
2 MIN READING
Astronomy · L5 · Strong-Lensing Time-Delay Cosmography & the Hubble Tension
Astronomy · L5 · Strong-Lensing Time-Delay Cosmography & the Hubble TensionNoteAstronomy
3 MIN READING
Astronomy · L5 · The Kerr Metric: Frame Dragging, the Ergosphere & the Penrose Process
Astronomy · L5 · The Kerr Metric: Frame Dragging, the Ergosphere & the Penrose ProcessPlotAstronomy
Astronomy · L3 · Hubble's Law: Recession Velocity vs Distance
Astronomy · L3 · Hubble's Law: Recession Velocity vs DistancePlotAstronomy