2004A&A...426..695Z

Query : 2004A&A...426..695Z

2004A&A...426..695Z - Astronomy and Astrophysics, volume 426695-698 (2004/11-1)

Multi-order TODCOR: Application to observations taken with the CORALIE echelle spectrograph. II. A planet in the system HD 41004.

ZUCKER S., MAZEH T., SANTOS N.C., UDRY S. and MAYOR M.

Abstract (from CDS):

In previous works we reported the detection of a brown-dwarf companion orbiting the faint stellar component of the visual binary HD 41004. This had been achieved by applying the multi-order TwO-Dimensional CORrelation (TODCOR) algorithm to CORALIE spectra. A long-term trend of the primary component had also been detected. In this paper we report follow-up observations that seem to unravel the nature of this long-term trend. The new measurements are consistent with the presence of a 2.5MJ planet in an eccentric orbit around HD 41004A. Thus, HD 41004 is a unique hierarchical system with a brown dwarf that accompanies the faint M-component, and a planet that orbits the brighter K-component.

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Journal keyword(s): methods: data analysis - techniques: radial velocities - stars: binaries: spectroscopic - stars: individual: HD 41004 - stars: low-mass, dwarfs brown

VizieR on-line data: <Available at CDS (J/A+A/426/695): table2.dat>

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 13445 PM* 02 10 25.9181700303 -50 49 25.465181208   6.945 6.117     K1.5V 484 1
2 HD 41004 PM* 05 59 49.6501762752 -48 14 22.888358520   9.49 8.62     K1IV 221 1
3 HD 41004Ab Pl 05 59 49.6501762752 -48 14 22.888358520           ~ 41 1
4 HD 41004B * 05 59 49.6531151 -48 14 23.428302   13.85 12.33     M 67 1
5 HD 52698 SB* 07 01 13.7314874136 -25 56 55.491750492 8.203 7.58 6.688     K1V 97 0
6 BD+01 2447 PM* 10 28 55.5512830314 +00 50 27.598904576 12.389 11.151 9.650 8.617 7.389 dM2 361 0
7 HD 178911 SB* 19 09 04.3519341413 +34 36 01.242009328   7.37   6.3   G1V+K1V 142 0
8 * 16 Cyg A ** 19 41 48.9534996168 +50 31 30.219536784 6.79 6.59 5.95 5.50 5.17 G1.5Vb 814 0
9 * gam Cep SB* 23 39 20.9104133784 +77 37 56.510781384 5.190 4.250   2.6   K1III-IVCN1 626 1

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