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b Centauri b

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364:. This mechanism cannot explain b Cen (AB)b, because core accretion becomes less efficient at large distances from the star, and massive stars like b Centauri A cause the disc to dissipate much quicker. It's more probable that the planet formed directly from the circumstellar gas, through a mechanism known as gravitational instability. This process is much faster than core accretion and can act even at separations of hundreds of astronomical units. Another possibility is that the planet formed closer to the central stars and was subsequently ejected to its current orbit through interactions with another body, but this is disfavored by the lack of evidence of other planets in the system and by the low eccentricity of b Cen (AB)b. 254: 2016: 34: 430:
Janson, Markus; Squicciarini, Vito; Delorme, Philippe; Gratton, Raffaele; Bonnefoy, Mickaƫl; Reffert, Sabine; Mamajek, Eric E.; Eriksson, Simon C.; Vigan, Arthur; Langlois, Maud; Engler, Natalia; Chauvin, Gaƫl; Desidera, Silvano; Mayer, Lucio; Marleau, Gabriel-Dominique; Bohn, Alexander J.; Samland,
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Janson, Markus; Gratton, Raffaele; Rodet, Laetitia; Vigan, Arthur; Bonnefoy, Mickaƫl; Delorme, Philippe; Mamajek, Eric E.; Reffert, Sabine; Stock, Lukas; Marleau, Gabriel-Dominique; Langlois, Maud; Chauvin, Gaƫl; Desidera, Silvano; Ringqvist, Simon; Mayer, Lucio; Viswanath, Gayathri; Squicciarini,
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separation that had infrared colors consistent with a massive planet. A second observation in 2021 confirmed that the object has common proper motion with b Centauri and therefore is physically bound to the system. The authors of this study also looked for old observations of b Centauri and found
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Vito; Meyer, Michael R.; Samland, Matthias; Petrus, Simon; Helled, Ravit; Kenworthy, Matthew A.; Quanz, Sascha P.; Biller, Beth; Henning, Thomas; Mesa, Dino; Engler, Natalia; Carson, Joseph C. (2021). "A wide-orbit giant planet in the high-mass b Centauri binary system".
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Matthias; Meyer, Michael; d'Orazi, Valentina; Henning, Thomas; Quanz, Sascha; Kenworthy, Matthew; Carson, Joseph C. (2021). "BEAST begins: Sample characteristics and survey performance of the B-star Exoplanet Abundance Study".
344:. The mass ratio between b Cen (AB)b and the central binary star is 0.10ā€”0.17%, which is similar to the Sun-Jupiter system and is consistent to the expectations that more massive stars tend to have more massive planets. 339:
The SPHERE images show the planet has approximately 0.01% the solar luminosity, a relic of its recent formation. From this luminosity and the age of the system, cooling models predict it has a mass of about 11 times the
328:. The three epochs of observations show evidence of the orbital motion of the planet around the central stars, but the orbit is still not well constrained. The data are consistent with an 367:
The discovery of b Cen (AB)b showed that planets can exist even around massive stars. Previous studies had shown that planet occurrence rate starts to drop for stars over 2
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can detect. The discovers of b Cen (AB)b argued that the short lifetime of the circumstellar discs around massive stars may prevent planets from
2043: 300:, b Centauri is the most massive system around which a planet has been found; previously, the most massive star with a known planet was 3  2038: 630: 269:
to search for planets around B-type stars in the Scorpiusā€“Centaurus association. SPHERE is equipped with a sophisticated
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Shatsky, N.; Tokovinin, A. (2002). "The mass ratio distribution of B-type visual binaries in the Sco OB2 association".
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The formation mechanism for b Cen (AB)b is uncertain. It is believed that most giant planets are formed via
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in 2000, but was considered a background star at the time. With a primary star mass of 5ā€“6 
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closer to their stars, but allows the existence of distant planets like b Cen (AB)b.
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that blocks out the light from a star and allows exoplanets around it to be
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between 2650 and 7170 years, inclination between 128 and 157 degrees, and
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Artist's impression showing b Centauri b. b Centauri is in the background.
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The b Centauri system was included in the BEAST survey, which uses the
277:. The first observation of the system in 2019 revealed an object at a 1824: 1764: 1670: 1460: 1376: 1371: 1366: 1361: 1356: 1351: 1346: 1341: 1336: 1331: 1326: 1321: 1316: 1311: 1306: 1301: 1296: 1291: 1286: 1281: 1276: 1271: 1243: 1238: 1233: 1228: 1223: 1218: 1213: 1208: 1203: 1193: 1178: 1168: 1158: 1153: 1148: 1143: 1138: 1133: 1128: 1123: 1118: 1108: 1093: 1068: 1063: 1058: 1053: 1048: 1038: 1033: 995: 990: 985: 940: 381:
stars, but this result is valid only for close in planets, which the
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Named b Centauri (AB)b (shortened as 'b Cen (AB)b'), this is a
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Exoplanet Exploration: Planets Beyond our Solar System (NASA)
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that orbits the stellar pair at a projected separation of
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This article is about b Centauri b. For Ī² Centauri B, see
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The planet b Centauri b is indicated by an arrow. 1980: 2030: 558: 1949: 638: 423: 624: 1575: 492: 490: 488: 486: 484: 482: 480: 631: 617: 552: 1459: 572: 511: 477: 444: 16:Long-period exoplanet orbiting b Centauri 252: 233:, located in the southern constellation 282:that the planet had been imaged by the 2031: 1656: 2044:Exoplanets detected by direct imaging 612: 293:and a total system mass of 6ā€“10  225:(sometimes b Centauri (AB) b) is a 13: 14: 2055: 2015: 2014: 229:orbiting the binary star system 32: 1635:Scorpiusā€“Centaurus association 656:Centaurus in Chinese astronomy 399: 374:and reaches almost zero for 3 1: 2039:Exoplanets discovered in 2021 392: 347: 248: 7: 463:10.1051/0004-6361/202039683 360:the surrounding gas of the 10: 2060: 651:List of stars in Centaurus 640:Constellation of Centaurus 591:10.1051/0004-6361:20011542 561:Astronomy and Astrophysics 530:10.1038/s41586-021-04124-8 433:Astronomy and Astrophysics 317:astronomer Markus Janson. 18: 2012: 1976: 1945: 1895: 1735: 1726: 1652: 1571: 1455: 1385: 1252: 1024: 866: 833: 673: 664: 646: 241:, with a mass 10.9 times 216: 192: 172: 167: 157: 141: 126:Orbital period (sidereal) 123: 113: 95: 88: 76: 68: 56: 51: 31: 971:V816 (Przybylski's Star) 168:Physical characteristics 583:2002A&A...382...92S 455:2021A&A...646A.164J 90:Orbital characteristics 383:radial velocity method 258: 256: 38:b Centauri imaged by 1964:Shapley Supercluster 1701:Southern Crab Nebula 1418:PSR B1259āˆ’63/LS 2883 698:C (Proxima Centauri) 315:Stockholm University 267:Very Large Telescope 1982:Astronomical events 688:A (Rigil Kentaurus) 522:2021Natur.600..231J 407:"Exoplanet-catalog" 322:circumbinary planet 284:ESO 3.6 m Telescope 279:5.3 arcseconds 227:circumbinary planet 69:Discovery date 28: 1857:5128 (Centaurus A) 1544:Proxima Centauri b 362:circumstellar disc 336:smaller than 0.4. 265:instrument at the 259: 237:. The planet is a 58:Discovered by 26: 2026: 2025: 2008: 2007: 1972: 1971: 1941: 1940: 1722: 1721: 1710: 1648: 1647: 1567: 1566: 1451: 1450: 1428:WASP-15 (Nyamien) 506:(7888): 231ā€“234. 220: 219: 2051: 2018: 2017: 1978: 1977: 1947: 1946: 1733: 1732: 1708: 1666:Boomerang Nebula 1654: 1653: 1573: 1572: 1457: 1456: 1443:WASP-167/KELT-13 1393:2MASS J1126āˆ’5003 671: 670: 633: 626: 619: 610: 609: 603: 602: 576: 574:astro-ph/0109456 556: 550: 549: 515: 494: 475: 474: 448: 427: 421: 420: 418: 417: 403: 327: 280: 204: 202: 153: 151: 137: 135: 109: 107: 79:Detection method 36: 29: 25: 2059: 2058: 2054: 2053: 2052: 2050: 2049: 2048: 2029: 2028: 2027: 2022: 2004: 1968: 1951:Galaxy clusters 1937: 1923:IRAS 13224-3809 1891: 1718: 1644: 1563: 1447: 1381: 1347:117618 (Dofida) 1248: 1020: 862: 829: 660: 642: 637: 607: 606: 557: 553: 495: 478: 428: 424: 415: 413: 405: 404: 400: 395: 380: 377: 373: 370: 350: 342:mass of Jupiter 325: 313:and was led by 306: 303: 299: 296: 292: 289: 278: 275:directly imaged 251: 243:that of Jupiter 211: 208: 200: 198: 187: 184: 177: 149: 147: 133: 131: 128: 105: 103: 100: 98:Semi-major axis 81: 47: 24: 17: 12: 11: 5: 2057: 2047: 2046: 2041: 2024: 2023: 2013: 2010: 2009: 2006: 2005: 2003: 2002: 1997: 1992: 1986: 1984: 1974: 1973: 1970: 1969: 1967: 1966: 1961: 1955: 1953: 1943: 1942: 1939: 1938: 1936: 1935: 1930: 1925: 1920: 1915: 1910: 1905: 1899: 1897: 1893: 1892: 1890: 1889: 1884: 1879: 1874: 1869: 1864: 1859: 1854: 1849: 1844: 1839: 1834: 1829: 1828: 1827: 1817: 1812: 1807: 1802: 1797: 1792: 1787: 1782: 1777: 1772: 1767: 1762: 1757: 1752: 1747: 1741: 1739: 1730: 1724: 1723: 1720: 1719: 1717: 1716: 1711: 1703: 1698: 1693: 1688: 1683: 1678: 1673: 1668: 1662: 1660: 1650: 1649: 1646: 1645: 1643: 1642: 1637: 1632: 1627: 1622: 1617: 1612: 1607: 1602: 1597: 1592: 1587: 1581: 1579: 1569: 1568: 1565: 1564: 1562: 1561: 1556: 1551: 1546: 1541: 1536: 1531: 1526: 1521: 1516: 1511: 1506: 1501: 1496: 1491: 1486: 1481: 1476: 1471: 1465: 1463: 1453: 1452: 1449: 1448: 1446: 1445: 1440: 1435: 1430: 1425: 1423:PSR J1311ā€“3430 1420: 1415: 1410: 1405: 1400: 1395: 1389: 1387: 1383: 1382: 1380: 1379: 1374: 1369: 1364: 1359: 1354: 1349: 1344: 1339: 1334: 1329: 1324: 1319: 1314: 1309: 1304: 1299: 1294: 1289: 1284: 1282:102117 (Uklun) 1279: 1274: 1269: 1264: 1258: 1256: 1250: 1249: 1247: 1246: 1241: 1236: 1231: 1226: 1221: 1216: 1211: 1206: 1201: 1196: 1191: 1186: 1181: 1176: 1171: 1166: 1161: 1156: 1151: 1146: 1141: 1136: 1131: 1126: 1121: 1116: 1111: 1106: 1101: 1096: 1091: 1086: 1081: 1076: 1071: 1066: 1061: 1056: 1051: 1046: 1041: 1036: 1030: 1028: 1022: 1021: 1019: 1018: 1013: 1008: 1003: 998: 993: 988: 983: 978: 973: 968: 963: 958: 953: 948: 943: 938: 933: 928: 923: 918: 913: 908: 903: 898: 893: 888: 883: 878: 872: 870: 864: 863: 861: 860: 855: 850: 845: 839: 837: 831: 830: 828: 827: 822: 817: 812: 807: 802: 797: 792: 787: 782: 777: 772: 767: 762: 757: 752: 747: 742: 737: 732: 727: 722: 717: 712: 707: 702: 701: 700: 695: 690: 679: 677: 668: 662: 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Retrieved 410: 401: 366: 351: 338: 334:eccentricity 319: 308: 260: 223:b Centauri b 222: 221: 115:Eccentricity 27:b Centauri b 1539:HIP 67522 b 1534:HIP 65426 b 1529:HD 121504 b 1524:HD 117618 b 1519:HD 117207 b 1514:HD 114729 b 1509:HD 114386 b 1499:HD 113538 b 1494:HD 101930 b 1489:HD 109749 b 1484:HD 103197 b 1479:HD 102117 b 735:Īø (Menkent) 693:B (Toliman) 326:560 AU 271:coronagraph 175:Mean radius 143:Inclination 2033:Categories 1959:Abell S740 1918:ESO 444-46 1913:ESO 383-76 1903:ESO 269-57 1676:G292.0+1.8 1461:Exoplanets 725:Ī¶ (Alnair) 513:2112.04833 446:2101.02043 416:2023-10-24 393:References 231:b Centauri 162:b Centauri 1671:Fleming 1 835:Flamsteed 705:Ī² (Hadar) 546:245005994 471:230770142 387:migrating 358:accreting 348:Formation 249:Discovery 235:Centaurus 52:Discovery 2020:Category 2000:SN 1986G 1995:SN 1895B 1728:Galaxies 1709:(RCW 86) 1691:NGC 5307 1686:NGC 3918 1640:Stock 16 1625:NGC 5662 1620:NGC 5617 1615:NGC 5460 1610:NGC 5316 1605:NGC 5281 1600:NGC 5286 1595:NGC 4230 1590:NGC 3766 1559:WASP-15b 1403:Gaia BH2 1244:5489 (c) 1239:5485 (c) 1234:5471 (b) 1224:5358 (v) 1204:5222 (y) 1199:5207 (N) 1194:5174 (z) 1189:5172 (M) 1184:5141 (Q) 1179:5089 (d) 1174:5071 (K) 1169:5041 (m) 1164:5035 (J) 1159:5006 (r) 1144:4940 (f) 1139:4889 (n) 1134:4888 (e) 1129:4874 (p) 1124:4831 (w) 1119:4817 (l) 1109:4748 (u) 1104:4732 (G) 1099:4724 (x) 1089:4712 (x) 1084:4682 (F) 1079:4652 (D) 1074:4620 (E) 1069:4546 (B) 1064:4537 (j) 1044:4476 (C) 1039:4466 (C) 1034:4460 (A) 1001:V945 (H) 946:V763 (C) 941:V761 (a) 868:Variable 599:16697655 538:34880428 439:: A164. 379:☉ 372:☉ 305:☉ 298:☉ 291:☉ 1681:IC 2944 1658:Nebulae 1585:IC 2944 1469:2M1207b 1438:WASP-42 1433:WASP-41 1408:GJ 3737 579:Bibcode 518:Bibcode 451:Bibcode 1990:SN 185 1714:SuWt 2 1706:SN 185 1696:RCW 79 1413:J1407b 1398:2M1207 1377:131399 1372:125595 1367:125072 1362:124448 1357:121504 1352:121228 1342:117207 1337:116434 1332:115600 1327:114729 1322:114386 1317:113766 1312:113538 1307:110113 1302:109749 1297:108236 1292:107914 1287:103197 1277:101930 1272:100453 597:  567:: 92. 544:  536:  500:Nature 469:  310:Nature 263:SPHERE 63:SPHERE 44:SPHERE 1896:Other 1765:4650A 1386:Other 1267:98176 1262:97413 1016:V1400 1011:V1369 1006:V1032 858:4 (h) 853:3 (k) 848:2 (g) 843:1 (i) 675:Bayer 666:Stars 595:S2CID 569:arXiv 542:S2CID 508:arXiv 467:S2CID 441:arXiv 180:1.11 1887:5419 1882:5408 1877:5398 1872:5291 1867:5253 1862:5161 1852:5114 1847:5102 1842:5091 1837:5090 1832:5026 1820:5011 1815:4976 1810:4945 1805:4744 1800:4743 1795:4730 1790:4729 1785:4709 1780:4706 1775:4696 1770:4683 1760:4622 1755:4603 1750:4444 1745:3783 1229:5371 1219:5297 1214:5241 1209:5224 1154:4989 1149:4979 1114:4796 1094:4721 1059:4523 1054:4522 1049:4499 996:V863 991:V886 986:V885 981:V842 976:V831 966:V810 961:V803 956:V779 951:V766 936:V752 931:V744 926:V346 534:PMID 199:10.9 194:Mass 158:Star 136:2650 132:7170 72:2021 1737:NGC 587:doi 565:382 526:doi 504:600 459:doi 437:646 203:1.6 152:128 148:157 119:0.4 104:556 40:VLT 2035:: 1254:HD 1026:HR 921:DY 916:BV 911:SX 906:SV 901:RR 593:. 585:. 577:. 563:. 540:. 532:. 524:. 516:. 502:. 479:^ 465:. 457:. 449:. 435:. 409:. 245:. 108:17 1825:A 1630:Ļ‰ 1554:d 1549:c 1504:c 896:Y 891:V 886:U 881:T 876:R 825:Ļˆ 820:Ļ‡ 815:Ļ† 810:Ļ… 805:Ļ… 800:Ļ„ 795:Ļƒ 790:Ļ 785:Ļ€ 780:Īæ 775:Īæ 770:Ī¾ 765:Ī¾ 760:Ī½ 755:Ī¼ 750:Ī» 745:Īŗ 740:Ī¹ 730:Ī· 720:Īµ 715:Ī“ 683:Ī± 632:e 625:t 618:v 601:. 589:: 581:: 571:: 548:. 528:: 520:: 510:: 473:. 461:: 453:: 443:: 419:. 376:M 369:M 302:M 295:M 288:M 210:J 207:M 201:Ā± 186:J 183:R 150:Ā± 134:Ā± 106:Ā± 42:/ 23:.

Index

Beta Centauri

VLT
SPHERE
Discovered by
SPHERE
Detection method
Orbital characteristics
Semi-major axis
Eccentricity
Orbital period (sidereal)
Inclination
b Centauri
Mean radius
RJ
Mass
MJ
circumbinary planet
b Centauri
Centaurus
super-Jupiter
that of Jupiter

SPHERE
Very Large Telescope
coronagraph
directly imaged
ESO 3.6 m Telescope
Nature
Stockholm University

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