Notes for HD 89744

update: 19 April 2004

The planet(s):

• Detection method: Radial veolocity
• Basic data:

  Name:	HD 89744 b
  M.sini:	7.99 MJ
  Semi-major axis:	0.89 AU
  Orbital period:	256.605 d.
  Eccentricity:	0.67
  Omega (deg):	193
  T_peri (JD-2450000):	1505.13
  Inclination:	-

  Remarks:
  19 Apr. 04: Astrometric confirmation of a wide low-mass companion (Mugrauer et al 2004)
  22 Nov. 00: From astrometry Han et al (2000) claim a preliminary mass of 97 M_J and inclination of 175.8^o
  
• References:
  1. HAN I., BLACK D. & GATEWOOD G., 2000
     Preliminary astrometric masses for proposed exrasolar planetary companions.
     ApJ. Letters, accepted
     paper
  2. KORZENNIK S., BROWN T., FISCHER D., NISENSON P. & NOYES R., 2000
     A High-Eccentricity Low-Mass companion to HD 89744.
     ApJ. Letters, 533, L147
     paper
  3. MUGRAUER M., NEUHÄUSER R., MAZEH T., GUENTHER E. & FERNANDEZ M., 2004
     Astrometric confirmation of a wide low-mass companion to the planet host star HD89744.
     Astron. Nachrichten, accepted
     preprint
  4. TAKEDA Y., SATO B., KAMBE E., AOKI W., HONDA S., KAWANOMOTO S., MASUDA S., IZUMIURA H., WATANABE E., KOYANO H., MAEHARA H., NORIMOTO Y., OKADA T., SHIMIZU Y., URAGUCHI F., YANAGIZAWA K. YOSHIDA M., NIYAMA S. & ANDO H., 2001
     Photospheric Abundances of Volatile and Refractory Elements in Planet-Harboring Stars.
     PASJ, 53, 1211
     paper
• Other Web pages:
  1. Radial velocity curve and complete data (AFOE)
  2. Planet data (California and Carnegie Planet Search)

The star:

• Distance: 40 pc
• Spectral type: F7 V
• Apparent magnitude: V = 5.741
• Coordinates (2000):     RA = 10 22 10.5621       DEC = +41 13 46.308
• Metallicity: [Fe/H]= 0.18
• Mass (M_sun): M= 1.40
• More data:
  • Basic Data (from simbad )
  • Most recent refs. (from ADS; enter ` HD 89744 ' in the `objects' field)