Planets Around HD46375 and HD16141

Velocity versus Orbital Phase for the star HD46375. The orbital period is 3.024 d and the semiamplitude is 35 m/s. Assuming the mass of HD 46375 is 1 Msun, the minimum mass (Msini) of the companion is 0.25 Mjup, and the semimajor axis is 0.041 AU.

Velocities for HD 16141. The Keplerian orbital fit is shown as the solid line. The period is 75.82 d, the semiamplitude is 10.8 m/s, and the orbital eccentricity is 0.28. Assuming HD 16141 is 1 Msun, the minimum mass (Msini) of the companion is 0.22 Mjup, and the semimajor axis is 0.35 AU.
 
 

Postscript Paper

Orbital Parameters and Masses

(as of 30 March 2000)
Planet Period (d) T_peri (JD-2450000) ecc omega (deg) Vel Amp, K (m/s)  Msini (M_jup) a (AU)
HD46375 3.024 1582.10 0.04 (+-0.04) --- 35.2 0.249 0.041
HD16141 75.8 1547 0.28 41 10.8 0.215 0.35


    Lynette Cook's Graphics.
   

NASA Graphics.
 

New York Times Article

Research is supported by NASA, NSF, and Sun Microsystems.
 

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