Notes for HD 12661

update: 24 November 2004

The planet(s):

• Detection method: Radial Velocity (SFSU)
• Basic data:

  Name:	HD 12661 b	HD 12661 c
  M.sini:	2.30 MJ	1.57 MJ
  Semi-major axis:	0.83 AU	2.56 AU
  Orbital period:	263.6 ± 1.2d.	1444.5 ± 12.5d.
  Eccentricity:	0.35 ± 0.03	0.20 ± 0.04
  Omega (deg):	291.73 ± 5.0	162.4 ± 18.5
  T_peri :	2449941.9 ± 6.2	2449733.6 ± 49.0
  Inclination:	-	-

• Remarks:
  22 Nov. 00: From astrometry Han et al (2000) claim a preliminary mass of 56 M_J and inclination of 2.9^o
  
• References:
  1. FISCHER D., MARCY G., BUTLER P., VOGT S., FRINK S. & APPS K., 2000
     Planetary Companions to HD 12661, HD 92788, HD 38529 and Variations in Keplerian Residuals of Extrasolar Planets.
     ApJ, 551, 1107
     paper
  2. FISCHER D., MARCY G., BUTLER P., VOGT S., HENRY G., POURBAIX D., WALP B., MISCH A., & WRIGHT J., 2002c
     A Planetary Companion to HD 40979 and Additional Planets Orbiting HD 12661 and HD 38529.
     ApJ., 586, 1394
     paper
  3. GOZ'DZIEWSKI K., 2002b
     A Dynamical Analysis of the HD 12661 Planetary System.
     Astron. & Astrophys., submitted
     abstract
  4. GOZ'DZIEWSKI K. & KONACKI M., 2004
     Dynamical Properties of the Multi-Planet System around HD 169830.
     ApJ., accepted
     preprint
  5. GOZ'DZIEWSKI K. & MACIEJEWSKI A., 2003
     The Janus head of the HD 12661 planetary system.
     ApJ. Letters, 586, L153
     paper
  6. HAN I., BLACK D. & GATEWOOD G., 2000
     Preliminary astrometric masses for proposed exrasolar planetary companions.
     ApJ. Letters, accepted
     paper
  7. JI J., LIU L., KINOSHITA H., ZHOU J., NAKAI H. & LI G., 2003
     The Librating Companions in HD 37124, HD 12661, HD 82943, 47 Uma and GJ 876: Alignment or Antialignment?
     ApJ. Letters, 1 July
     preprint
  8. KISELEVA-EGGLETON L., BOIS E., RAMBAUX N. & DVORAK R., 2002
     Global dynamics and stability limits for planetary systems around HD 12661, HD 38529, HD 37124 and HD 160691.
     ApJ. Letters, 578, L145
     paper
  9. LEE M. & PEALE S., 2003
     Secular Evolution of Hierarchical Planetary Systems.
     ApJ., accepted
     preprint
  10. RODRIGUEZ A. & GALLARDO T., 2004
      The Dynamics of the HD 12661 Extrasolar Planetary System.
      ApJ, submitted
  11. ZHAO G., CHEN Y., QIU H. & LI. Z., 2002
      Chemical Abundances of 15 Extrasolar-Planet Host Stars.
      Astron. J., 124, 2224
      paper
  12. ZHOU J. & SUN Y., 2003
      Occurrence and Stability of Apsidal Resonance in Multiple Planetary Systems.
      ApJ, 598, 1290
      paper
• Other Web pages:
  1. Velocity curve and data (California Planet Search Team)

The star:

• Distance: 37.16 pc
• Spectral type: G6 V
• Apparent magnitude: V = 7.44
• Coordinates (2000):     RA = 02 04 34.29 DEC = +25 24 51.5      
• Metallicity: [Fe/H] = 0.293
• Mass (M_sun): M = 1.07
• More data:
  • Basic Data (from simbad )
  • Most recent refs. (from ADS; enter ` HD 12661 ' in the `objects' field)