Notes for HD 41004 A
by
Jean Schneider
update: 15 August 2004
The planet(s):
- Detection method: Radial velocity
- Basic data:
| Name: |
HD 41004 A b |
| M.sini: |
2.3 MJ |
| Semi-major axis: |
1.31 AU |
| Orbital period: |
655 ± 37 d. |
| Eccentricity: |
0.39 ± 0.17 |
| omega (deg): |
114 ± 10 |
| T_peri (JD-2400000): |
51914 ± 14 |
| Inclination: |
- |
- Remarks:
1 July: Planet in a hierarchic quadruple system: A 2.3 M_Jup planet
orbiting a K2V
star plus a 19 M_Jup brown dwarf orbiting a M4V star
- References:
- SANTOS N., MAYOR M., NAEF D., PEPE F., QUELOZ D., UDRY S., BURNET M.,
CLAUSEN J., HELT B., OLSON E. & PRITCHARD J., 2002b
The CORALIE survey for southern extra-solar planets IX. A
1.3-day period brown dwarf disguised as a planet.
Astron. & Astrophys., 392, 215
paper
- ZUCKER S. et al, 2003
to be submitted
- ZUCKER S., MAZEH T., SANTOS N., UDRY S. & MAYOR M., 2003
Multi-order TODCOR: application to observations taken with
the CORALIE echelle spectrograph.
Astron. & Astrophys., 404, 775
paper
- ZUCKER S., MAZEH T., SANTOS N. UDRY S. & MAYOR M., 2004
Multi-order TODCOR: Application to observations taken with the CORALIE echelle spectrograph II. A planet in the system HD41004.
Astron. & Astrophys., in press
preprint
- Other web pages:
- Data at Geneva Observatory
The star:
- Distance: 42.5 pc
- Spectral type: K1V
- Apparent magnitude: V = 8.65
- Coordinates (2000): RA = 05 59 49.6493
DEC = -48 14 22.889
- Metallicity: [Fe/H] = -0.09 ± 0.10
- Mass (M_sun): M = 0.7
- Age (Gyr): A = 1.6
- More data:
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Extra-solar Planets Catalog