Notes for HD 40979

update: 25 May 2003

The planet(s):

• Detection method: Radial Velocity
• Basic data:

  Name:	HD 40979 b
  M.sini:	3.32 MJ
  Semi-major axis:	0.811
  Orbital period:	267.2 ± 3.0 d.
  Eccentricity:	0.23 ± 0.05
  Omega (deg):	310.8
  T_peri (JD-2450000):	2330.65
  Inclination:	-

• Remarks:
  20 apr. 03: Planet in wide (a ~ 6400 AU) binary system (Eggenberger et al 2003)
• References:
  • EGGENBERGER A., UDRY S. & MAYOR M., 2003
    Planets in binaries.
    in Scientific Frontiers in Research on Extrasolar Planets, ASP Conference Series. D.Deming and S.Seager, eds.
    paper
  • 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
• Other Web pages:
  1. Velocity curve and data (California and Carnegie Planet Search Team)

The star:

• Distance: 33.3 pc
• Spectral type: F8 V
• Apparent magnitude: V = 6.746
• Metallicity: [Fe/H] = 0.194
• Mass (M_sun): M = 1.08
• Coordinates (2000):     RA = 06 04 29.9431       DEC = +44 15 37.599
• More data:
  • Basic Data (from simbad )
  • Most recent refs. (from ADS; enter ` HD 40979 ' in the `objects' field)