liu
Notes for HD 114762
by Jean Schneiderupdate: 22 November 2000
The companion(s):
- Detection method: Radial Velocity
- Remarks:
I do provisionaly classify this object as
`brown dwarf' because, in spite of the fact that its
Mxsini is smaller than the 13 MJ limit for
brown dwarfs, there are indications that its inclination is low (i
much less than 90o, Hale 1995), so that its mass is finally
likely to be above 13 MJ. See the discussion by Mazeh et
al. (1996) based on 495 RV data.
22 Nov. 00: From astrometry Han et al (2000) claim a preliminary mass of 145 MJ and inclination of 4.3o
- Data:
- Mass:M x sini =
11.02 MJ from Marcy et al. 1998h
- 9 MJ from Mazeh et al. 1996 - Period:
- 84.05 d. from Latham et al. 1989
- 84.02 d. from Marcy et al. - Inclination:
- From Robinson et al. (1990) the inclination cannot be high since there are no eclipses
- From rotational velocity and V x sini measurements, the inclination is likely to be low (Cochran 1991, Hale 1995)
- Mass:M x sini =
- References:
- COCHRAN W., HATZES A. & HANCOCK J., 1991
"Constraints on the Companion Object to HD114762
ApJ. Letters, 380, L35
( abstract). - GIMENEZ A., 2000
ubvy Photometry of stars with planets.
Astron. & Astrophys., 356, 213.
paper - HAN I., BLACK D. & GATEWOOD G., 2000
Preliminary astrometric masses for proposed exrasolar planetary companions.
ApJ. Letters, accepted
paper - HENRY G., BALIUNAS S., DONAHUE R., SOON W., & SAAR S., 1996
Properties of Sun-like Stars with Planets: 51 Pegasi, 47 Ursae Majoris, 70 Virginis, and HD114762
Apj., 474, 503
paper - LATHAM D. W., STEFANIK R. P., MAZEH T., MAYOR M. & BURKI, G. 1989
The unseen companion of HD114762 - A probable brown dwarf
Nature, 339, 38
( Abstract). - LLOYD J., LIU M., GRAHAM J., ENOCH M., KALAS P., MARCY G., FISCHER D.,
PATIENCE J., MACINTOSH B., GAVEL D., OLIVIER S., MAX C., WHITE R., GHEZ A. &
McLEAN I., 2001
An Adaptive Optics Survey for Companions to Stars with Extra-Solar Planets.
in Proceedings of IAU Symposium 202, "Planetary Systems in the Universe: Observation, Formation and Evolution,", eds. A. Penny, P. Artymowicz, A.-M. Lagrange, and S. Russell
paper - MARCY G., BUTLER P., VOGT S., FISCHER D. & LIU M., 1998h
Two New Planets in Eccentric Orbits.
Apj. submitted
preprint - MAZEH T., LATHAM D. W. & STEFANIK R. P., 1996
Spectroscopic Orbits for Three Binaries with Low-Mass Companions and the Distribution of Secondary Masses Near the Substellar Limit
ApJ. 466, 415
abstract and paper with figures 1 2 3 4 5 6 7 and tables 1 2 3 4 - ROBINSON, E. L. COCHRAN, A. L. COCHRAN W. D.SHAFTER A. W. and ZHANG, ER-HO,
1990
A search for eclipses of HD 114762 by a low-mass companion
Astronomical J., 99, 672
( Abstract). - RYAN S, 2000
The Host Stars of Extrasolar Planets Have Normal Lithium Abundances.
MNRAS, in press preprint - COCHRAN W. C. 1991
The companion object to HD114762
Reports of Planetary Astronomy, NASA, pp. 153-154
( Abstract). - HALE, Alan 1995
On the nature of the companion to HD 114762
PASP, 107, 22
( Abstract).
- COCHRAN W., HATZES A. & HANCOCK J., 1991
- Other Web pages:
- Velocity curve and basic data (Marcy, Butler et al
The star:
- Distance: 28 pc (from photometry, Laird, Carney & Latham, AJ, 95, 1843 (1988)).
- Spectral type: F9V
- Apparent magnitude: B = 7.85, V = 7.30
- Coordinates (2000): RA = 13 12 21.73, DEC = +17 31 01.23
- Metallicity: [Fe/H] = -.5
- Mass (M_sun): M = 0.82
- More data:
- Basic Data (from simbad )
- Most recent refs. (from ADS; enter `HD 114762' in the `objects' field)
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