HARPS Garanteed time observations Stellar metallicity and the formation of giant planets - Metal deficient stars (40 nights) Investigators -HARPS PI : Michel Mayor (Geneva observatory) Francesco Pepe,Didier Queloz,Stephane Udry Willy Benz Nuno Santos Claire Moutou Proposed observations Stars with detected giant planets exhibit an impressive excess of metallicity in contrast to stellar samples without giant planets. The excess of metallicity does not seem related to the mass of the convective zone and probably finds its origin into the chemical composition of the primordial molecular cloud. To add new constrains to the link between star chemical composition and frequency (or properties) of exoplanets , we propose two programmes . The first one is a search for exoplanets orbiting solar-type stars with notable deficiency (for most of them [Fe/H] between -0.5 and -1.0]. Among the existing detections of exoplanets ,only two or three have been found with metallicity in that range. For a sample of some hundred G deficient stars selected from our systematic CORAVEL surveys ,we expect to estimate the frequency of exoplanets in that domain of metallicity and if possible to compare their characteristics (masses,orbits) to planets orbiting metal rich stars. Observing mode - Standard HARPS mode (Simultaneous Th-Ar reference mode) List of objects Name RA2000 DEC2000 mv ----------- ---------- --------- ------ HD 967 00:14:04.4 -11:18:41 8.375 HD 11397 01:51:40.5 -16:19:03 8.950 HD 16784 02:40:38.7 -30:08:07 8.021 HD 17548 02:48:51.8 -01:30:34 8.156 HD 17865 02:50:41.4 -44:04:52 8.174 HD 22879 03:40:22.0 -03:13:01 6.689 HD 25704 04:01:44.6 -57:12:24 8.124 HD 31128 04:52:09.9 -27:03:50 9.138 HD 38510 05:45:09.6 -26:59:30 8.212 HD 40865 05:59:55.7 -37:03:24 8.617 HD 51754 06:58:38.5 -00:28:49 8.994 CD -57 1633 07:06:28.9 -57:27:29 9.528 CD -45 2997 07:11:29.0 -46:11:55 10.724 HD 56274 07:15:50.7 -13:02:58 7.752 HD 59984 07:32:05.7 -08:52:52 5.928 HD 61902 07:38:53.6 -51:05:00 8.227 HD 62849 07:43:23.6 -52:30:28 10.294 HD 68089 08:09:05.0 -42:04:28 9.590 HD 68284 08:11:49.5 +04:16:28 7.766 HD 69611 08:17:29.3 -03:59:22 7.745 HD 75745 08:49:35.9 -52:28:35 9.462 BD -03 2525 08:59:10.1 -04:01:36 9.651 HD 77110 08:59:17.8 -35:18:37 8.860 HD 78747 09:07:56.5 -50:28:56 7.716 HD 79601 09:13:44.6 -42:18:37 8.016 HD 88474 10:09:09.4 -70:21:58 8.478 HD 88725 10:14:08.3 +03:09:04 7.750 HD 90422 10:25:29.4 -45:10:57 8.256 HD 91345 10:30:04.6 -71:33:39 9.036 HD 94444 10:53:25.6 -44:24:40 8.095 HD 95860 11:02:50.7 -53:14:49 9.744 CD -43 6810 11:08:40.0 -44:15:33 9.829 HD 97320 11:11:00.7 -65:25:37 8.168 HD 97783 11:14:49.9 -23:38:47 9.056 HD 102200 11:45:34.2 -46:03:46 8.738 HD 104800 12:04:05.5 +03:20:26 9.223 HD 105004 12:05:24.8 -26:35:43 10.311 HD 107094 12:18:56.4 -45:52:53 9.127 HD 108564 12:28:19.1 -16:54:39 9.426 HD 109310 12:33:49.0 -23:30:56 8.375 HD 109684 12:36:28.4 +10:43:47 8.717 HD 111515 12:49:44.8 +01:11:16 8.119 HD 111777 12:52:11.6 -56:34:27 8.492 CD -23 1087 13:03:27.5 -24:25:12 10.013 HD 113679 13:05:52.8 -38:30:59 9.706 HD 119949 13:46:45.6 -20:51:09 8.118 HD 121004 13:53:58.1 -46:32:19 9.023 HD 123517 14:13:59.8 -78:53:51 9.552 HD 124785 14:16:57.3 -50:16:52 8.666 HD 126681 14:27:24.9 -18:24:40 9.293 HD 126793 14:30:12.6 -62:51:44 8.205 HD 126803 14:29:03.2 -46:44:28 8.934 HD 128340 14:37:00.3 -24:02:18 8.868 HD 128575 14:42:42.5 -74:18:41 8.318 HD 129229 14:41:18.8 +03:26:55 8.414 BD +06 2932 14:43:17.9 +05:49:39 10.435 HD 131653 14:55:07.0 -09:05:50 9.518 HD 134088 15:08:12.5 -07:54:47 8.000 HD 134113 15:07:46.5 +08:52:47 8.267 HD 134440 15:10:12.9 -16:27:45 9.420 HD 136269 15:22:55.9 -62:41:58 10.048 BD +06 3077 15:38:39.0 +06:22:30 10.512 BD +08 3095 15:50:58.9 +08:25:23 9.935 HD 144589 16:07:38.8 -29:57:44 9.858 HD 145344 16:27:32.3 -83:28:33 8.404 HD 145417 16:13:48.5 -57:34:13 7.522 HD 147518 16:24:56.3 -51:25:44 9.332 HD 148211 16:27:12.9 -22:07:36 7.697 HD 148816 16:30:28.4 +04:10:41 7.282 HD 149747 17:19:59.4 -87:14:34 9.195 HD 150177 16:39:39.1 -09:33:16 6.340 HD 161265 17:46:10.8 -37:17:19 9.716 BD -08 4501 17:47:27.9 -08:46:47 10.586 HD 164500 18:03:41.4 -45:51:43 9.665 HD 167300 18:18:44.5 -61:56:06 9.179 CD -45 1246 18:25:01.8 -45:28:47 10.934 HD 171028 18:32:15.4 +06:56:44 8.289 HD 171587 18:36:09.2 -10:53:26 8.529 HD 175179 18:54:23.2 -04:36:18 9.080 HD 175607 19:01:05.4 -66:11:33 8.610 HD 181720 19:22:52.9 -32:55:08 7.846 HD 187151 19:48:59.9 -14:23:12 8.614 HD 190984 20:11:30.7 -64:37:13 8.763 HD 193901 20:23:35.8 -21:22:13 8.658 HD 195633 20:32:23.9 +06:31:03 8.548 HD 196892 20:40:49.3 -18:47:33 8.242 HD 197083 20:42:27.4 -33:19:43 9.205 HD 197197 20:42:37.1 -13:05:41 8.097 HD 197536 20:44:37.0 -10:29:41 8.220 HD 197890 20:47:45.0 -36:35:40 9.506 HD 199288 20:57:40.0 -44:07:45 6.521 HD 199289 20:58:08.5 -48:12:13 8.292 HD 199604 20:59:05.2 -25:22:50 8.570 HD 199847 21:02:39.0 -61:52:50 8.815 BD -00 4234 21:32:11.9 +00:13:18 9.813 HD 206998 21:47:44.0 -55:39:16 8.691 HD 207190 21:47:40.1 -19:34:40 7.686 HD 207869 21:55:10.4 -69:01:14 8.945 HD 210752 22:12:43.5 -06:28:08 7.442 HD 215257 22:43:50.7 +03:53:12 7.413 HD 218504 23:08:42.9 -18:45:06 8.113 HD 221580 23:33:40.1 -53:39:29 9.201 HD 223854 23:53:06.8 +02:19:52 8.055 HD 224347 23:57:10.1 -05:27:35 8.510 HD 224817 00:00:58.2 -11:49:25 8.406