Color Difference Makes a Difference: Four Planet Candidates around τ Ceti

Keyphrases

• Radial Velocity 100%
• Color Difference 100%
• Radial Velocity Estimation 66%
• Radial Velocity Data 66%
• Searchers 66%
• Central Moments 66%
• Habitable Zone 33%
• Wavelength Dependence 33%
• Orbital Period 33%
• Keck 33%
• Outer Edge 33%
• Period-one 33%
• Periodic Signal 33%
• Minimum Mass 33%
• Moving Average Model 33%
• Noise Model 33%
• Instrumental Noise 33%
• Weak Signal 33%
• New Signals 33%
• Spectral Line Profile 33%
• Dependent Noise 33%
• Earth Analogs 33%
• Precision Limit 33%

Physics

• Radial-Velocity Method 100%
• Habitable Zone 14%
• Line Spectra 14%
• Earth Analog 14%