Notes for HD 82943

update: 29 March 2005

The planet(s):

• Detection method: Radial velocity
• Basic data:

  Name:	HD 82943 b	HD 82943 c
  M.sini:	1.63 MJ	0.88 MJ
  Semi-major axis:	1.16 AU	0.73 AU
  Orbital period:	444.6 ± 8.8 d.	221.6 ± 2.7 d.
  Eccentricity:	0.41 ± 0.08	0.54 ± 0.05
  Omega (deg):	117.8 ± 3.4	-
  T_peri (JD-2450000):	1626.8 ± 1.5	-
  Inclination:	-	-

• Remarks:
  10 May 01; Li detected in the atmosphere of the star; interpreted as engulfment of a planet (or planets) by the star (Israelian et al. 2001).
  22 Nov. 00: From astrometry Han et al (2000) claim a preliminary mass of 36 M_J and inclination of 176.4^o
  
• References:
  1. BARNES R. & QUINN Th., 2004
     The (In)Stability of Planetary Systems.
     ApJ., 611, 494
     paper
  2. BEAUGE C., FERRAZ-MELLO S. & MICHTCHENKO T., 2004
     Planetary Migration and Extrasolar Planets in the 2/1 Mean-Motion Resonance.
     MNRAS, submitted
     preprint
  3. BEICHMAN C., BRYDEN G., PIEKE G., STANSBERRY J., TRILLING D., STAPELFELDT K., WERNER M., ENGELBRECHT C., BLAYLOCK M., GORDON K., CHEN C., SU K. & HINES D., 2004
     Planets and IR Excesses: Preliminary Results from a Spitzer MIPS Survey of Solar-Type Stars.
     ApJ. , 622, 1160
     paper
  4. FERRAZ-MELLO S., MICHTCHENKO T. & BEAUGE C., 2004
     The Orbits of the Planets HD 82943 c, b
     ApJ, 621, 473
     paper
  5. GOZDZIEWSKI K. & MACIEJEWSKI A., 2001b
     Dynamical Analysis of the Orbital Parameters of the HD 82943 Planetary System.
     ApJ. Letters, 563, L81
     paper
  6. HADJIDEMETRIOU J., 2002
     Resonant periodic motion and the stability of extrasolar planetary systems.
     Celestial Mechanics and Dynamical Astronomy, in press
     preprint
  7. HAN I., BLACK D. & GATEWOOD G., 2000
     Preliminary astrometric masses for proposed exrasolar planetary companions.
     ApJ. Letters, 548, L57
     paper
  8. ISRAELIAN G., SANTOS N., MAYOR M. & REBOLO R. 2003
     New measurement of the 6Li/7Li isotopic ratio in the extra-solar planet host star HD82943 and line blending in the Li 6707A region.
     Astron. & Astrophys., , 753>
     paper
  9. ISRAELIAN G., SANTOS N., MAYOR M. & REBOLO R., 2001
     Evidence for planet engulfment by the star HD82943.
     Nature, 411, 163
     paper
  10. JI J., KINOSHITA H., LIU L., NAKAI H. & LI G., 2005
      The Stable Topology of the Planetary Systems of two 2:1 Resonant Companions: Application to HD 82943.
      Adv. in Spa. Res., submitted
      preprint
  11. JI J., KINOSHITA H., LIU L., LI G.. & NAKAI H., 2003
      The Apsidal Antialignment of the HD 82943 System.
      in Celestial Mechanics and Dynamical Astronomy, Proceedings of IAU 189 Colloquium.
      paper
  12. 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
  13. JI J., LIU L., KINOSHITA H., LI G. & NAKAI H., 2004
      The Stability Analysis of the Extrasolar Planetary Systems.
      in IAU Symposium 219: Stars as Suns: Activity, Evolution, and Planets, eds. A. K. Dupree & A. Benz
      paper
  14. KLEY W., 2003
      Dynamical Evolution of Planets in Disks.
      in Proc. of IAU Colloquium 189, Astrophysical Tides
      paper
  15. LAWS Ch., GONZALEZ G., WALKER K., TYAGI S., DODSWORTH J., SNIDER K. & SUNTZEFF N., 2003
      Parent Stars of Extrasolar Planets VII: New Abundance Analyses of 30 Systems.
      Astron. J., 125, 2664
      paper
  16. MAYOR M., UDRY S., NAEF D., PEPE F., QUELOZ D., SANTOS N. & BURNET M., 2004
      The CORALIE survey for southern extra-solar planets. XII: Orbital solutions for 16 extra-solar planets discovered with CORALIE.
      Astron. & Astrophys., 415, 391
      paper
  17. PSYCHOYOS D.& HADJIDEMETRIOU J. , 2003
      Dynamics of 2/1 Resonant Extrasolar Systems: Application to HD82943 and Gliese 876.
      Cel. Mech. & Dyn. Astron., to appear
      preprint
  18. SCHÜTZ O., BÖHNHARDT H., PANTIN E., STERZIK M., ELS S., HAHN J. & HENNING Th., 2004
      A search for circumstellar dust disks with ADONIS.
      Astron. & Astrophys., accepted
      preprint
• Other Web pages:
  1. Geneva group velocity curve and data

The star:

• Distance: 27.46 pc
• Spectral type: G0
• Apparent magnitude: V = 6.54
• Coordinates :      RA = 09 34 50.7361       DEC = -12 07 46.365
• Metallicity: [Fe/H]= 0.32
• Mass (M_sun): M= 1.05
• More data:
  • Basic Data (from simbad )
  • Most recent refs. (from ADS; enter ` HD 82943 ' in the `objects' field)