Discoveries of The Geneva Extrasolar Planet Search Team

The Geneva Extrasolar Planet Search Programmes

-- Our Detections --

Last Update: February 17 2009, Contact:D. Naef

Planetary candidates: Table of the planetary or low-mass brown dwarf candidates we have detected with ELODIE, CORALIE, HARPS, FLAMES-UVES or SOPHIE. Some of them were detected in collaboration with the G-Dwarf Planet Search Team using the HIRES spectrograph on the KECK Telescope. One of them, HD 114762, was discovered using data from the CfA Digital Speedometer and the CORAVEL spectrometer. HD 47536 b was discovered in collaboration with other teams using the ESO-Feros spectrograph. Finally, some of the planetary companions listed here are radial-velocity confirmations of candidates detected via the photometric transits method.

Special cases: Here are some special cases of stars with radial velocities mimicing the effect induced by the presence of a planet.

HD 166435
HD 83443 c
HD 41004 AB
HD 223084
HD 13507
HD 33636

-- Planetary or low-mass brown dwarf candidates --

#	Object	Refereed Paper(s)	Announcement Date & Reference
1	HD 114762 b	Latham et al. 1989, Nature 339,38
2	51 Pegasi b	Mayor & Queloz 1995, Nature 378, 355 Naef et al. 2004, A&A 414, 351	October 5th 1995, Mayor & Queloz Proceedings of the 9th workshop on "Cool Stars, Stellar Systems and the Sun"
3	GL 876 b	Delfosse et al. 1998, A&A 338, L67	June 1998, IAU Coll. 170 "Precise Stellar Radial Velocities" (oral presentation)
4	14 Herculis b	Naef et al. 2004, A&A 414, 351	July 1998, Protostars & Planets IV (oral presentation) Updated in Udry et al. 2000
5	Gl 86 b	Queloz et al. 2000, A&A 354, 99	November 24th 1999, ESO Press Release
6	HD 75289 b	Udry et al. 2000, A&A 356, 590	February 1999, Annoucement text
7	HD 130322 b	Udry et al. 2000, A&A 356, 590	September 4th 1999, Annoucement text
8	HD 192263 b	Santos et al. 2000, A&A 356, 599 Santos et al. 2003, A&A 406, 373	September 28th 1999, Santos et al., Proceedings of the 11th Workshop on "Cool Stars, Stellar Systems and the Sun"
9	HD 209458 b	Mazeh et al. 2000, ApJ 532, L55 Queloz et al. 2000, A&A 359, L13 Naef et al. 2004, A&A 414, 351	November 22th, IAU circular
10	GJ 3021 b	Naef et al. 2001, A&A 375, 205	January 25th 2000, Naef et al., Proceedings of the "Disks, Planetesimals and Planets" Conference
11	HD 52265 b	Naef et al. 2001, A&A 375, 205	May 4th 2000, ESO Press Release
12	HD 82943 b	Mayor et al. 2004, A&A 415, 391	May 4th 2000, ESO Press Release
13	HD 83443 b	Mayor et al. 2004, A&A 415, 391	May 4th 2000, ESO Press Release
14	HD 108147 b	Pepe et al. 2002, A&A 388, 632	May 4th 2000, ESO Press Release
15	HD 162020 b	Udry et al. 2002, A&A 390, 267	May 4th 2000, ESO Press Release
16	HD 168746 b	Pepe et al. 2002, A&A 388, 632	May 4th 2000, ESO Press Release
17	HD 169830 b	Naef et al. 2001, A&A 375, 205 Mayor et al. 2004, A&A 415, 391	May 4th 2000, ESO Press Release
18	HD 202206 b	Udry et al. 2002, A&A 390, 267	May 4th 2000, ESO Press Release
19	HD 6434 b	Mayor et al. 2004, A&A 415, 391	August 7th 2000, Queloz et al., Proceedings of the "Planetary Systems in the Universe" Symposium, IAU Symp. 202
20	HD 19994 b	Mayor et al. 2004, A&A 415, 391	August 7th 2000, Queloz et al.
21	HD 92788 b	Mayor et al. 2004, A&A 415, 391	August 7th 2000, Queloz et al.
22	HD 121504 b	Mayor et al. 2004, A&A 415, 391	August 7th 2000, Queloz et al.
23	HD 168443 c	Udry et al. 2002, A&A 390, 267	August 7th 2000,Udry et al.
24	HD 190228 b	Perrier et al. 2003, A&A 410, 1039	August 7th 2000, Sivan et al.
25	HD 8574 b	Perrier et al. 2003, A&A 410, 1039	April 4th 2001, ESO Press Release
26	HD 28185 b	Santos et al. 2001, A&A 379, 999	April 4th 2001, ESO Press Release
27	HD 50554 b	Perrier et al. 2003, A&A 410, 1039	April 4th 2001, ESO Press Release
28	HD 74156 b	Naef et al. 2004, A&A 414, 351	April 4th 2001, ESO Press Release
29	HD 74156 c	Naef et al. 2004, A&A 414, 351	April 4th 2001, ESO Press Release
30	HD 80606 b	Naef et al. 2001, A&A 375, L27	April 4th 2001, ESO Press Release
31	HD 82943 c	Mayor et al. 2004, A&A 415, 391	April 4th 2001, ESO Press Release
32	HD 106252 b	Perrier et al. 2003, A&A 410, 1039	April 4th 2001, ESO Press Release
33	HD 141937 b	Udry et al. 2002, A&A 390, 267	April 4th 2001, ESO Press Release
34	HD 178911 Bb	Zucker et al. 2002, ApJ 568, 363	April 4th 2001, ESO Press Release
35	HD 213240 b	Santos et al. 2001, A&A 379, 999	April 4th 2001, ESO Press Release
36	HD 20367 b		June 2002, Udry et al., Proceedings of the "Scientific Frontiers in Research on Extrasolar Planets" Conference
37	HD 23596 b	Perrier et al. 2003, A&A 410, 1039	June 2002, Udry et al.
38	HD 37124 c		June 2002, Udry et al.
39	HD 114386 b	Mayor et al. 2004, A&A 415, 391	June 2002, Udry et al.
40	HD 147513 b	Mayor et al. 2004, A&A 415, 391	June 2002, Udry et al.
41	HD 150706 b		June 2002, Udry et al.
42	GJ 777 Ab	Naef et al. 2003, A&A 410, 1051	June 2002, Udry et al.
43	HD 196050 b	Mayor et al. 2004, A&A 415, 391	June 2002, Udry et al.
44	HD 216437 b	Mayor et al. 2004, A&A 415, 391	June 2002, Udry et al.
45	HD 47536 b	Setiawan et al. 2003, A&A 398, L19	January 22th 2003, ESO Press Release
46	HD 73256 b	Udry et al. 2003, A&A 407, 679	April 14th 2003
47	HD 10647 b	Udry et al. 2004, in prep.	June 30th 2003, Udry et al., Proceedings of the XIXth IAP Colloquium "Extrasolar Planets: Today & Tomorrow"
48	HD 41004 Ab	Zucker et al. 2004, A&A 426, 695.	June 30th 2003, Udry et al.
49	HD 65216 b	Mayor et al. 2004, A&A 415, 391	June 30th 2003, Udry et al.
50	HD 111232 b	Mayor et al. 2004, A&A 415, 391	June 30th 2003, Udry et al.
51	HD 142415 b	Mayor et al. 2004, A&A 415, 391	June 30th 2003, Udry et al.
52	HD 169830 c	Mayor et al. 2004, A&A 415, 391	June 30th 2003, Udry et al.
53	HD 216770 b	Mayor et al. 2004, A&A 415, 391	June 30th 2003, Udry et al.
54	HD 330075 b	Pepe et al. 2004, A&A 423, 385	December 2003, Mayor et al. ESO Messenger 114
55	OGLE-TR-113 b	Bouchy et al. 2004, A&A 421, L13 Santos et al. 2006, A&A 450, 825 Santos et al. 2006, A&A 458, 997 Melo et al. 2006, A&A 460, 251 Gillon et al. 2006, A&A 459, 249	May 7th 2004, ESO Press Release
56	OGLE-TR-132 b	Bouchy et al. 2004, A&A 421, L13 Gillon et al. 2007, A&A 466, 743	May 7th 2004, ESO Press Release
57	mu Ara c	Santos et al. 2004, A&A 426, L19 Pepe et al. 2007, A&A 462, 769	August 25th 2004, ESO Press Release
58	OGLE-TR-111 b	Pont et al. 2004, A&A 426, L15 Santos et al. 2006, A&A 450, 825 Santos et al. 2006, A&A 458, 997 Melo et al. 2006, A&A 460, 251	August 26th 2004, Pont et al.
59	OGLE-TR-10 b	Bouchy et al. 2005, A&A 431, 1105 Santos et al. 2006, A&A 450, 825 Santos et al. 2006, A&A 458, 997 Melo et al. 2006, A&A 460, 251 Pont et al. 2007, A&A 465, 1069	October 15th 2004, Bouchy et al.
60	HD 202206 c	Correia et al. 2005, A&A 440, 751	November 17th 2004, Correia et al.
61	HD 2638 b	Moutou et al. 2005, A&A 439, 367	February 8th 2005, Mayor et al. Aspen Winter Conference 2005 "Planet Formation and Detection"
62	HD 27894 b	Moutou et al. 2005, A&A 439, 367	February 8th 2005, Mayor et al.
63	HD 63454 b	Moutou et al. 2005, A&A 439, 367	February 8th 2005, Mayor et al.
64	HD 93083 b	Lovis et al. 2005, A&A 437, 1121	February 8th 2005, Mayor et al.
65	HD 101930 b	Lovis et al. 2005, A&A 437, 1121	February 8th 2005, Mayor et al.
66	HD 102117 b	Lovis et al. 2005, A&A 437, 1121	February 8th 2005, Mayor et al.
67	HD 142022 b	Eggenberger et al. 2006, A&A 447, 1159	February 8th 2005, Mayor et al.
68	Gl 581 b	Bonfils et al. 2005, A&A 443, L15 Udry et al. 2007, A&A 469, L43	August 22nd 2005, Mayor & Queloz OHP Colloquium "The tenth anniversary of 51 Peg b"
69	HD 4308 b	Udry et al. 2006, A&A 447, 361	August 22nd 2005, Mayor & Queloz
70	HD 118203 b	Da Silva et al. 2006, A&A 446, 717	August 22nd 2005, Mayor & Queloz
71	HD 212301 b	Lo Curto et al. 2006, A&A 451, 345	August 22nd 2005, Mayor & Queloz
72	HD 33564 b	Galland et al. 2005, A&A 444, L21	September 6th 2005, Galland et al.
73	HD 189733 b	Bouchy et al. 2005, A&A 444, L15 Bakos et al. 2006, ApJ 650, 1160 Melo et al. 2006, A&A 460, 251	October 5th 2005, Bouchy et al.
74	HD 81040 b	Sozzetti et al. 2006, A&A 449, 417	November 24th 2005, Sozzetti et al.
75	HD 69830 b	Lovis et al. 2006, Nature 441, 305 Alibert et al. 2006, A&A 455, L25	May 17th 2006, ESO Press release
76	HD 69830 c	Lovis et al. 2006, Nature 441, 305 Alibert et al. 2006, A&A 455, L25	May 17th 2006, ESO Press release
77	HD 69830 d	Lovis et al. 2006, Nature 441, 305 Alibert et al. 2006, A&A 455, L25	May 17th 2006, ESO Press release
78	HD 185269 b	Moutou et al. 2006, A&A 458, 327	July 13th 2006
79	mu Ara d	Pepe et al. 2007, A&A 462, 769	August 5th 2006, Pepe et al.
80	mu Ara e	Pepe et al. 2007, A&A 462, 769	August 5th 2006, Pepe et al.
81	WASP-1 b	Collier-Cameron et al. 2007, MNRAS 375, 951	September 25th 2006, Collier Cameron et al.
82	WASP-2 b	Collier-Cameron et al. 2007, MNRAS 375, 951	September 25th 2006, Collier Cameron et al.
83	HD 219828 b	Melo et al. 2007, A&A 467, 721	February 18th 2007, Melo et al.
84	HD 100777 b	Naef et al. 2007, A&A 470, 721	March 5th 2007, Naef et al. The "Observing Planetary Systems" ESO Workshop
85	HD 190647 b	Naef et al. 2007, A&A 470, 721	March 5th 2007, Naef et al.
86	HD 221287 b	Naef et al. 2007, A&A 470, 721	March 5th 2007, Naef et al.
87	GJ 674 b	Bonfils et al. 2007, A&A 474, 293	March 6th 2007, Bonfils et al. The "Observing Planetary Systems" ESO Workshop
88	Gl 581 c	Udry et al. 2007, A&A 469, L43	April 25th 2007 ESO-PR 22/07
89	Gl 581 d	Udry et al. 2007, A&A 469, L43	April 25th 2007 ESO-PR 22/07
90	NGC 2423 No3 b	Lovis et al. 2007, A&A 472, 675	June 14th 2007, Lovis et al.
91	NGC 4349 No127 b	Lovis et al. 2007, A&A 472, 675	June 14th 2007, Lovis et al.
92	HD 43691 b	Da Silva et al. 2007, A&A 473, 323	June 26 2007, Udry et al., Proceedings of the "Extreme Solar Systems" conference
93	HD 132406 b	Da Silva et al. 2007, A&A 473, 323	June 26 2007, Udry et al.
94	HD 171028 b	Santos et al. 2007, A&A 474, 647	June 26 2007, Udry et al.
95	HD 4113 b	Tamuz et al. 2008, A&A 480, L33	June 26 2007, Udry et al.
96	HD 156846 b	Tamuz et al. 2008, A&A 480, L33	June 26 2007, Udry et al.
97	HAT-P-5b	Bakos et al. 2007, ApJ 671, L173	October 8 2007, Bakos et al.
98	OGLE-TR-182 b	Pont et al. 2008, A&A 487, 749	October 28 2007, Pont et al.
99	WASP-3 b	Pollaco et al. 2008, MNRAS 385, 1576	November 1 2007, Pollaco et al.
100	HD 196885 Ab	Correia et al. 2008, A&A 479, 271	November 21 2007, Correia et al.
101	OGLE-TR-211 b	Udalski et al. 2008, A&A 482, 299	November 27 2007, Udalski et al.
102	WASP-4 b	Wilson et al. 2008, ApJ 675, L116	January 9 2008, Wilson et al.
103	WASP-5 b	Anderson et al. 2008, MNRAS 387, L4	January 10 2008, Anderson et al.
104	CoRoT-Exo-1b	Barge et al. 2008, A&A 482, L17	March 21 2008, Barge et al.
105	CoRoT-Exo-2b	Alonso et al. 2008, A&A 482, L21 Bouchy et al. 2008, A&A 482, L25	March 21 2008, Alonso et al.
106	WASP-6b	Gillon et al. 2009, A&A submitted astro-ph/0901.4705	April 1st 2008, Pollaco et al., RAS National Astronomy Meeting 2008.
107	WASP-7b (=HD 197286 b)	Hellier et al. 2009, ApJ 690, L89	April 1st 2008, Pollaco et al.
108	WASP-8b	-	April 1st 2008, Pollaco et al.
109	WASP-9b	-	April 1st 2008, Pollaco et al.
110	WASP-10b	Christian et al. 2008, MNRAS 392, 1585	April 1st 2008, Pollaco et al.
111	WASP-11b (=HAT-P-10b)	West et al. 2008, A&A submitted astro-ph/0809.4597	April 1st 2008, Pollaco et al.
112	WASP-12b	Hebb et al. 2009, A&A submitted astro-ph/0812.3240	April 1st 2008, Pollaco et al.
113	WASP-13b	-	April 1st 2008, Pollaco et al.
114	WASP-14b	Joshi et al. 2008, MNRAS 392, 1532	April 1st 2008, Pollaco et al.
115	WASP-15b	West et al. 2009, AJ submitted astro-ph/0902.2651	April 1st 2008, Pollaco et al.
116	HD 45652 b	Santos et al. 2008, A&A 487, 369	May 7 2008, Santos et al.
117	HD 40307 b	Mayor et al. 2009, A&A 493, 639	June 16 2008, Mayor et al. ESO-PR 19/08
118	HD 40307 c	Mayor et al. 2009, A&A 493, 639	June 16 2008, Mayor et al. ESO-PR 19/08
119	HD 40307 d	Mayor et al. 2009, A&A 493, 639	June 16 2008, Mayor et al. ESO-PR 19/08
120	HAT-P-9b	Shporer et al. 2009, ApJ 690, 1393	June 25th 2008, Shporer et al.
121	CoRoT-Exo-4b	Aigrain et al. 2008, A&A 488, L43 Moutou et al. 2008, A&A 488, L47	July 23rd 2008, Moutou et al.
122	Gl 176 b	Forveille et al. 2009, A&A 493, 645	September 4th 2008, Forveille et al.
123	HD 60532 b	Desort et al. 2008, A&A 491, 883	September 23rd 2008, Desort et al.
124	HD 60532 c	Desort et al. 2008, A&A 491, 883	September 23rd 2008, Desort et al.
125	CoRoT-Exo-3b	Deleuil et al. 2008, A&A 491, 889	October 6th 2008, Deleuil et al.
126	BD -17 0063 b	Moutou et al. 2008, A&A in press astro-ph/0810.4662	October 26th 2008, Moutou et al.
127	HD 20868 b	Moutou et al. 2008, A&A in press astro-ph/0810.4662	October 26th 2008, Moutou et al.
128	HD 73267 b	Moutou et al. 2008, A&A in press astro-ph/0810.4662	October 26th 2008, Moutou et al.
129	HD 131664 b	Moutou et al. 2008, A&A in press astro-ph/0810.4662	October 26th 2008, Moutou et al.
130	HD 145377 b	Moutou et al. 2008, A&A in press astro-ph/0810.4662	October 26th 2008, Moutou et al.
131	HD 153950 b	Moutou et al. 2008, A&A in press astro-ph/0810.4662	October 26th 2008, Moutou et al.
132	HD 47186 b	Bouchy et al. 2009, A&A submitted astro-ph/0812.1608	June 16th 2008, Bouchy et al. "Extra-Solar Super-Earths" conference
133	HD 47186 c	Bouchy et al. 2009, A&A submitted astro-ph/0812.1608	June 16th 2008, Bouchy et al.
134	HD 181433 b	Bouchy et al. 2009, A&A submitted astro-ph/0812.1608	June 16th 2008, Bouchy et al.
135	HD 181433 c	Bouchy et al. 2009, A&A submitted astro-ph/0812.1608	June 16th 2008, Bouchy et al.
136	HD 181433 d	Bouchy et al. 2009, A&A submitted astro-ph/0812.1608	June 16th 2008, Bouchy et al.
137	HD 45364 b	Correia et al. 2009, A&A submitted astro-ph/0902.0597	February 3rd 2009, Correia et al.
138	HD 45364 c	Correia et al. 2009, A&A submitted astro-ph/0902.0597	February 3rd 2009, Correia et al.

-- Special cases --

HD 166435:

This star exhibit a periodic 3.8-day radial-velocity signal. The photometric and "S" index measurements exhibit the same periodicity. Moreover, we see a very clear negative correlation between the radial velocities and the line bisector spans. So this case seems clear. The observed RV signal is probably the result of stable spots on the surface of the star. A detailed analysis of this object has been done by Queloz et al. 2001 (A&A 379, 279)
HD 83443 c:

HD 83443 is known to host the extra-solar with a very short period (P=2.985 days, May 4th ESO Press Release; Mayor et al., proceedings of the "planetary Systems in the Universe" Symposium, IAU Symp. 202, Manchester, August 2000). The CORALIE measurements obtained during the 1999-2000 observing season exhibited a secondary highly significant 29.8-day signal. Butler et al. 2002 (ApJ 578, 565) confirmed the short-period signal but did not find any evidence of the 28.9-day signal in their 2000-2002 observations. We do not see any 28.9-day periodicity in our 2001-2003 CORALIE measurements. The signal has vanished. The interpretation of these facts is not clear for the moment. Was the observed 1999-2000 signal due to some stellar intrinsic variability? Instrumental artefacts seem to be excluded by the non variation of contemporary measurements of constant stars with similar stellar characteristics. The CORALIE data for this star are now published in Mayor et al. 2004 (A&A 415, 391).
HD 41004 AB:

A 1.3-day period is detected in the radial-velocity data of HD 41004 AB, a visual binary (HD 41004 B was detected by the Hipparcos satellite at a separation of 0.5''). A positive correlation between the line bisector spans and the radial velocities is observed. No photometric variations are seen down to 3-4 mmag. The interpretation is the following: HD 41004 B has a low-mass brown dwarf companion with a period of 1.3 days. The spectrum of HD 41004 B is moving relative to the spectrum of HD 41004 A inducing asymmetries in the blended line profiles. These asymmetries are responsible for the observed radial-velocity and bisector span variations. The detailed analysis of this triple system has been done by Santos et al. 2002 (A&A 392, 215). The secondary spectrum has been recently detected, confirming the results the previous results (Zucker et al. 2003, A&A 404, 775). A more detailed analysis performed by Zucker et al. 2004, (A&A 426, 695) show that HD 41004 A is also a radial-velocity variable. The detected variation is induced by the presence of HD 41004 Ab, a 2.5 M_Jup planet on a 655-d orbit around this star. The HD 41004 system is therefore a quadruple hierarchic system: a K2V star with a planet + a M4V star with a brown dwarf.
HD 223084:

This case is similar to the HD 41004 AB case. A first interpretation of the observed RV variation was in favor of a planet in a binary since the Keplerian signal was superimposed on a linear radial-velocity drift. At the beginning, we did not see any trace of positive correlation between the line bisector spans and the velocities. Such a correlation has finally emerged from our latest CORALIE observation so the interpretation has to be changed. As for HD 41004 AB, the observed radial-velocity variations are due to the presence of a more massive companion in orbit around the secondary star of the system (see Eggenberger et al. 2002, proceedings of the "Scientific Frontiers in Research on Extrasolar Planets" conference, Washington, June 2002, gzipped PostScript file).
HD 13507:

HD 13507 is not a planet in a binary. We first interpreted the observed signal as a Keplerian modulation due to a planetary companion superimposed on a linear radial-velocity drift. Observations obtained during our September 2002 ELODIE observing run have ruled this interpretation out. The data for HD 13507 can be now well fitted by a single very long period Keplerian orbit. A minimal orbital solution gives P=3000 days, e~0.14, K1=0.69 km/s leading to a minimum secondary mass of about 52 M_Jup (Perrier et al. 2003, A&A 410, 1039).
HD 33636 b:

The detection of the planet candidate HD 33636 b was reported in Vogt et al. 2002 (ApJ 568, 352) and Perrier et al. 2003 (A&A 410, 1039). Recently, the detection of the astrometric signature induced by the companion on its host star was reported by Bean et al. (ApJ submitted). These authors were able to determine the orbital inclination and the companion true mass: i=4 degrees and m2=140 M_Jup. The companion to HD 33636 is thus a low-mass star (spectral type: M6V) on a nearly face-on orbit. The probability of such a low inclination is small: P(i<=4 deg)=2.4/1000 (assuming that orbital inclinations are randomly distributed). The sample of known exoplanet candidates is now quite large (more than 200 planets) so the presence inside it of a few contaminating low-inclination binaries was expected.