Notes for 47 Uma

by Jean Schneider

update: 4 November 2002

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The planet(s):

• Detection method: Radial Velocity (part of the University of California Planet Search (P. Butler and G. Marcy))

• Basic data:

  Name:	47Uma b	47Uma c
  M.sini:	2.54 MJ	0.76 MJ
  Semi-major axis:	2.09 AU	3.73 AU
  Orbital period:	1089 ± 3 d.	2594 ± 90 d
  Eccentricity:	0.061 ± 0.014	0.1 ± 0.1
  Omega (deg):	172	127
  T_peri (JD-2450000):	3622	1363.5
  Inclinaison:	-	-

• Remarks:
  22 Nov. 00: From astrometry Han et al (2000) claim a preliminary mass of 2.9 M_J and inclination of 63.1^o
  
  • 400 other stars monitored at Lick, 660 at Keck and 260 at AAT by Butler and Marcy
  • Upper mass limit of 7 M_J given by Hipparcos (Perryman et al. 1996)

• References:
  1. Paul BUTLER, Geoff MARCY 1996a,
     A Planet Orbiting 47 Uma,
     ApJ. Letters, 464, L153
     paper
  2. BUTLER P. & MARCY G., 1996b
     The Lick Observatory Planet Search
     Submitted to: Astronomical and Biochemical Origins and the Search for Life in the Universe, IAU Colloquium No. 161, Capri 1-5 July 1996, eds. C.B. Cosmovici, S. Bowyer, and D. Werthimer
     preprint
  3. CUNTZ M., VON BLOH W., BOUNAMA C., & FRANCK S., 2002
     On the Possibility of Earth-Type Habitable Planets around 47 UMa.
     Icarus, submitted
  4. JONES B. & SLEEP P., 2002
     The stability of the orbits of Earth-mass planets in the habitable zone of 47 Ursae Majoris.
     Astron. & Astrophys., 393, 1015
     paper
  5. FISCHER D., MARCY G., BUTLER P., LAUGHLIN G. & VOGT S., 2001c
     Two planets orbiting 47Uma
     ApJ, to appear 10 Jan. 2002
  6. GIMENEZ A., 2000
     ubvy Photometry of stars with planets.
     Astron. & Astrophys., 356, 213.
     paper
  7. GOZ'DZIEWSKI K., 2002
     Stability of the 47 UMa Planetary System.
     Astron. & Astrophys., 393, 997
     paper
  8. HAN I., BLACK D. & GATEWOOD G., 2000
     Preliminary astrometric masses for proposed exrasolar planetary companions.
     ApJ. Letters, accepted
     paper
  9. HENRY G., BALIUNAS S., DONAHUE R., SOON W., & SAAR S., 1997
     Properties of Sun-Like Stars with Planets: 51 Pegasi, 47 Ursae Majoris, 70 Virginis, and HD114762
     Apj., 474, 503
     paper
  10. JONES B. & SLEEP P., 2002
      The Orbits of Terrestrial Planets in the Habitable Zones of Known Exoplanetary Systems.
      in Scientific Frontiers in Research on Extrasolar Planets, edited by Deming and Seager. ASP Conference Series.
      paper
  11. KORNET K., BODENHEIMER P. & ROZYCZKA M., 2002
      Models of the formation of the planets in the 47 UMa system.
      Astron. & Astrophys., accepted
      preprint
  12. LAUGHLIN G., CHAMBERS J. & FISCHER D., 2002b
      A Dynamical Analysis of the 47 UMa Planetary System.
      ApJ., 579, 455
      paper
  13. paper
  14. MARCY G., COCHRAN W. & MAYOR M., 1999a
      Extrasolar Planets Around Main Sequence Stars.
      to appear in Protostars and Planets IV (Mannings, Boss & Russell Eds.)
      preprint
  15. NAGASAWA M., LIN D. & IDA S., 2002b
      Eccentricity Evolution of Extrasolar Planetary Systems due to the Depletion of Nascent Protostellar Disks.
      ApJ., submitted
      preprint
  16. PERRYMAN,M.A.C.; LINDEGREN,L., ARENOU,F., BASTIAN,U., BERNSTEIN,H.H., VAN LEEUWEN,F., SCHRIJVER,H., BERNACCA,P.L., EVANS,D.W., FALIN,J.L., FROESCHLE,M., GRENON,M., HERING,R., HOG,E., KOVALEVSKY,J., MIGNARD,F., MURRAY,C.A., PENSTON,M.J., PETERSEN,C.S., LE POOLE,R.S., SODERHJELM,S. TURON,C., 1996,
      Hipparcos distances and mass limits for the planetary candidates: 47 UMa, 70 Vir, and 51 Peg .
      Astron. & Astrophys., 310, L21
      ( abstract).
  17. RYAN S, 2000
      The Host Stars of Extrasolar Planets Have Normal Lithium Abundances.
      MNRAS, in press preprint
  18. 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
  19. TAMBURINI F., BIANCHINI A. & ORTOLANI S., 2002
      Polarization statistics of extra-solar systems.
      Astron. & Astrophys., submitted
      preprint
  20. ZHAO G., CHEN Y., QIU H. & LI. Z., 2002
      Chemical Abundances of 15 Extrasolar-Planet Host Stars.
      Astron. J., 124, 2224
      paper

• Other Web pages:
  1. Velocity curve and data for 47 Uma (Paul Butler, Geoff Marcy)
  2. Visualisation of 47 Uma (by John Whatmough)
  3. Sky chart (Bob Sanders)

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The star:

• Distance: 13.3 pc
• Spectral type: G0V
• Apparent magnitude: B = 5.66, V = 5.10
• Absolute luminosity:
• Metallicity: [Fe/H]= -0.08
• Mass (M_sun): M= 1.03
• Coordinates (2000): RA = 10 59 29.296, DEC = +40 25 46.09
• More data:
  • Basic Data (from simbad )
  • Most recent refs. (from ADS; enter `47 Uma' in the `objects' field)

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