Notes for GJ 436
by
Jean Schneider
update: 4 May 2005
The planets:
- Detection method: Radial Velocity
- Basic data:
| Name: |
GJ 436 b |
| M.sini: |
0.067 ± 0.007 MJ |
| Semi-major axis: |
0.0278 AU |
| Orbital period: |
2.6441 ± 0.0005 d. |
| Eccentricity: |
0.12 ± 0.06 |
| Omega (deg): |
332 ± 11 |
| T_peri (JD-2450000): |
1551.507 ± 0.03 |
| Inclination: |
- |
- Remarks:
- References:
- BARAFFE I., CHABRIER G., BARMAN T., SELSIS F., ALLARD F. & HAUSCHILDT P., 2005
Hot-Jupiters and hot-Neptunes: a common origin?
Astron. & Astrophys., accepted
preprint
- BRUNINI A. & CIONCO R., 2005
The Origin and Nature of Neptune-like Planets Orbiting Close to Solar Type
Stars.
Icarus, in press
preprint
- BUTLER P., VOGT S., MARCY G., FISCHER D., WRIGHT J., HENRY G., LAUGHLIN G.
& LISSAUER J., 2004
A Neptune-Mass Planet Orbiting the Nearby M Dwarf GJ 436
ApJ. Letters, 617, 580
paper
- ENDL M., COCHRAN W., TULL R., & MacQUEEN Ph., 2003
A Dedicated M-Dwarf Planet Search Using The Hobby-Eberly Telescope.
Astron. J., 126, 3099
paper
- SANTOS N., BOUCHY F., MAYOR M., PEPE F., QUELOZ D., UDRY S., LOVIS C.,
BAZOT M., BENZ W., BERTAUX J.-L., LO CURTO G., DELFOSSE X., MORDASINI C.,
NAEF D., SIVAN J.-P. & VAUCLAIR S., 2004
The HARPS survey for southern extrasolar planets. II A 14 Earth-masses
exoplanet around mu Arae
Astron. & Astrophys., 426, L19
paper
- Other Web pages:
The star:
- Distance: 10.2 pc
- Spectral type: M2.5
- Apparent magnitude: B = 12.20, V = 10.68
- Absolute luminosity:
- Coordinates (2000): RA = 11 42 11.0941, DEC = +26 42 23.652
- Metallicity: [Fe/H] = +0.25 ?
- Mass (M_sun): M = 0.41 ± 0.05
- More data:
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Extra-solar Planets Catalog