2949:
1350:
2913:
2180:
2190:
2937:
2961:
2973:
692:
A revised multiepoch spectroscopic study of LB-1 has revealed that LB-1 does not contain a black hole at all. Instead, it comprises a rapidly rotating Be star and a slowly-rotating helium star. The system was proposed to have formed through a past mass-transfer event. In this framework, the stripped
666:
and completely disintegrate, leaving no remnant behind. LB-1 would be the first black hole discovered in the mass gap range. The companion mass would be high enough that anything other than a black hole would be expected to be easily detected. According to one of the researchers, "This discovery
693:
helium star was originally the more massive star and has therefore evolved faster than its companion. After leaving the main sequence, the progenitor star transferred mass to its companion, which became the massive rapidly rotating Be star we see today.
634:
The unseen companion to the star was discovered by measuring the radial velocity shifts of its companion star. If it is a black hole, this would mark the first time a stellar black hole was discovered without observation of its X-ray emissions.
621:
An additional spectroscopic analysis utilised multi-epoch spectroscopy and disentangling techniques and found that LB-1 comprises two non-degenerate stars: a rapidly rotating B-type star with a disk (a
535:
outside of ordinary single stellar evolution parameters. However, analyses in 2020 found the original 2019 conclusion to be incorrect. Some researchers now believe the system consists of a stripped
574:
The astronomers observed the star orbiting an unseen companion every 78.9 days, in what researchers described as a "surprisingly circular" orbit. Follow-up observations using the
638:
If the distance from parallax is ignored, and the star is assumed to be an ordinary main sequence B-type star, the unseen companion LB-1 B or LB-1 *, could be hypothesized to be a
2075:
822:
Shenar, T.; Bodensteiner, J.; Abdul-Masih, M.; Fabry, M.; Marchant, P.; Banyard, G.; Bowman, D. M.; Dsilva, K.; Hawcroft, C.; Reggiani, M.; Sana, H. (July 2020).
1191:
1078:
563:
and located at least 7,000 light-years (2,100 pc) from Earth. It was found to exhibit radial velocity variations by
Chinese astronomers using the
1063:
2993:
2226:
596:. The observed spectral properties of the star are inconsistent with those expected for an ordinary main sequence B-type star at this distance.
678:
Alternatively, the evidence for the star to be a stripped helium star reduces the mass estimate of the compact object to as little as ~2ā3
459:
357:
1431:
1436:
2155:
1812:
1163:
1750:
1576:
1476:
1220:
1022:
873:
1253:
675:
collisions during the past four years, really points towards a renaissance in our understanding of black hole astrophysics."
2219:
1223:ā Interactive multimedia website about the physics and astronomy of black holes from the Space Telescope Science Institute
2998:
1792:
1099:
Liu, Jifeng; et al. (27 November 2019). "A wide starāblack-hole binary system from radial-velocity measurements".
1881:
1876:
2948:
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1048:
3013:
2916:
2212:
1797:
1593:
931:
36:
667:
forces us to re-examine our models of how stellar-mass black holes form This remarkable result, along with the
2019:
1700:
1339:
796:
1787:
1662:
668:
2888:
2193:
1705:
1608:
1396:
655:
1715:
2251:
2009:
1974:
1964:
990:
755:
712:
2927:
1695:
1647:
1630:
1329:
900:"Scientists keep debunking 'monster black hole' discovery. So, what's the deal with binary system LB1?"
899:
663:
556:
536:
3008:
2471:
2150:
1652:
1566:
1314:
1246:
986:
742:
600:
1164:"Chinese astronomers discovered a black hole so big it shouldn't exist according to current science"
2586:
1827:
575:
503:
3018:
2246:
2004:
1540:
1503:
1406:
1401:
1319:
651:
659:
2591:
2547:
2235:
2034:
1922:
1907:
1766:
1459:
1273:
579:
51:
1192:"Astronomers discover massive black hole that "should not even exist" in the Milky Way galaxy"
3003:
2712:
2529:
2398:
1912:
1725:
1469:
1324:
467:
365:
957:
849:
779:
2183:
1891:
1863:
1746:
1674:
1642:
1486:
1294:
1239:
1120:
953:
845:
774:
568:
522:
212:
158:
8:
2014:
1989:
1959:
1917:
1871:
1508:
1374:
1369:
1299:
707:
604:
586:
1226:
1124:
1848:
1720:
1625:
1416:
1384:
1349:
1309:
1304:
1144:
1110:
943:
835:
764:
532:
83:
662:
of black hole sizes, whereby sufficiently massive black hole progenitor stars undergo
3023:
2373:
2348:
2298:
2270:
1994:
1984:
1979:
1679:
1667:
1620:
1561:
1530:
1520:
1454:
1148:
1136:
672:
647:
29:
874:"Scientists have discovered a 'monster' black hole that's so big it shouldn't exist"
2941:
2328:
2145:
2105:
1853:
1802:
1657:
1571:
1364:
1334:
1168:
1128:
1101:
961:
853:
784:
527:
427:
325:
142:
966:
858:
823:
821:
789:
746:
2687:
2636:
2626:
2388:
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2323:
2313:
2293:
2288:
2165:
2115:
2090:
1886:
1730:
1637:
1603:
1515:
440:
338:
59:
646:, more than twice the mass as the maximum predicted by most current theories of
2953:
2631:
2519:
2318:
2303:
2080:
2065:
1832:
1771:
1615:
1289:
1079:"Scientists find 'monster' black hole so big they didn't think it was possible"
987:"Chinese Academy of Sciences leads discovery of unpredicted stellar black hole"
231:
190:
150:
130:
118:
1132:
2987:
2802:
2383:
2378:
2368:
2358:
2308:
2283:
2278:
2140:
2060:
1588:
1583:
930:
Irrgang, A.; Geier, S.; Kreuzer, S.; Pelisoli, I.; Heber, U. (January 2020).
107:
46:
1064:"Scientists spot black hole so huge it 'shouldn't even exist' in our galaxy"
2965:
2701:
2514:
2509:
2504:
2499:
2494:
2489:
2461:
2456:
2451:
2446:
2441:
2436:
2431:
2426:
2421:
2353:
2343:
2338:
2333:
2095:
1969:
1937:
1545:
1464:
1140:
929:
686:
395:
291:
2204:
1023:"Scientists Just Found an "Impossible" Black Hole in The Milky Way Galaxy"
2977:
2677:
2484:
2479:
2416:
2411:
2406:
2135:
2085:
2039:
1942:
1817:
1756:
1481:
1389:
994:
599:
A separate spectroscopic analysis of the star suggests that instead of a
518:
515:
72:
2896:
2807:
2766:
2672:
2601:
2125:
2055:
2024:
1999:
1952:
1947:
1932:
1598:
1535:
1525:
1426:
1262:
643:
639:
409:
318:
305:
165:
95:
2761:
2667:
2662:
2654:
2570:
2160:
1807:
1710:
1498:
1493:
2851:
2846:
2841:
2812:
2745:
2740:
2735:
2730:
2725:
2720:
2682:
2616:
2611:
2606:
2565:
2560:
2555:
2537:
2070:
2029:
1927:
1196:
1115:
948:
840:
824:"The 'hidden' companion in LB-1 unveiled by spectral disentangling"
769:
2596:
2110:
702:
623:
540:
932:"A stripped helium star in the potential black hole binary LB-1"
2870:
2826:
2797:
2792:
2784:
2130:
2120:
2100:
1822:
1421:
1411:
800:
592:
564:
497:
484:
382:
170:
1231:
751:
Data
Release 2: Summary of the contents and survey properties"
182:
39:
32:
2261:
134:
122:
2972:
565:
560:
203:
2925:
603:
as had been indicated, LB-1 A is more likely a
607:(whose spectrum is very similar) with only ~1
582:in the United States better defined the findings.
531:proposed the system contained an unusually massive
2887:
1055:
925:
923:
921:
817:
815:
813:
811:
809:
745:; et al. (Gaia collaboration) (August 2018).
1070:
2985:
1227:Frequently Asked Questions (FAQs) on Black Holes
1040:
1094:
1092:
918:
806:
1061:
981:
979:
977:
626:) and a slowly rotating stripped helium star.
16:Binary star system in the constellation Gemini
2220:
1247:
1155:
1076:
1046:
1016:
1014:
1012:
551:The optically observed star, LB-1 A, or
1183:
1089:
77:+22° 49′ 32.686″
2234:
974:
585:The parallax to LB-1 has been published in
2227:
2213:
1813:Magnetospheric eternally collapsing object
1254:
1240:
1009:
2653:
1114:
965:
947:
857:
839:
788:
778:
768:
2994:Astronomical objects discovered in 2019
614:, if at the distance determined by the
114:
2986:
2783:
1221:Black Holes: Gravity's Relentless Pull
2208:
1235:
1189:
1049:"Did this black hole swallow a star?"
1020:
741:
737:
735:
733:
731:
729:
727:
2189:
1161:
1021:Starr, Michelle (27 November 2019).
35:
1098:
1062:Jing Xuan TENG (28 November 2019).
629:
126:
13:
1190:Lewis, Sophie (28 November 2019).
1077:Katie Mettler (29 November 2019).
724:
14:
3035:
1214:
1162:Baker, SinƩad (29 November 219).
1047:Roberto Soria (3 December 2019).
571:to search for such wobbly stars.
2971:
2959:
2947:
2935:
2912:
2911:
2188:
2179:
2178:
1477:TolmanāOppenheimerāVolkoff limit
1348:
685:and raises the possibility of a
658:; however, it would fall in the
1594:Innermost stable circular orbit
1261:
797:Gaia DR2 record for this source
539:and a massive rapidly rotating
149:0.4403 Ā± 0.0856
2020:Timeline of black hole physics
892:
866:
1:
1788:Nonsingular black hole models
718:
656:intermediate-mass black holes
589:, implying a distance around
756:Astronomy & Astrophysics
7:
2252:Gemini in Chinese astronomy
2010:Rossi X-ray Timing Explorer
1975:Hypercompact stellar system
1965:Gamma-ray burst progenitors
991:Chinese Academy of Sciences
967:10.1051/0004-6361/201937343
859:10.1051/0004-6361/202038275
790:10.1051/0004-6361/201833051
713:List of nearest black holes
696:
664:pair-instability supernovae
559:nine times the mass of the
10:
3040:
2999:Astronomical radio sources
1696:Black hole complementarity
1663:Bousso's holographic bound
1648:Quasi-periodic oscillation
1346:
1340:MalamentāHogarth spacetime
936:Astronomy and Astrophysics
828:Astronomy and Astrophysics
642:, with a mass of about 70
2909:
2883:
2860:
2834:
2825:
2779:
2754:
2711:
2700:
2649:
2637:WISEP J060738.65+242953.4
2579:
2546:
2528:
2470:
2397:
2269:
2260:
2242:
2174:
2048:
1900:
1862:
1841:
1780:
1739:
1688:
1567:Gravitational singularity
1554:
1447:
1357:
1282:
1269:
1133:10.1038/s41586-019-1766-2
654:range, below the size of
601:B-type main sequence star
490:
388:
284:
279:
181:
177:
101:
94:
26:
2151:PSO J030947.49+271757.31
2076:SDSS J150243.09+111557.3
1609:BlandfordāZnajek process
938:(Letter to the Editor).
830:(Letter to the Editor).
576:Gran Telescopio Canarias
2867:2MASX J07322028+3138009
2247:List of stars in Gemini
2236:Constellation of Gemini
1407:Active galactic nucleus
958:2020A&A...633L...5I
850:2020A&A...639L...6S
780:2018A&A...616A...1G
652:stellar-mass black hole
546:
84:Apparent magnitude
3014:Gemini (constellation)
2035:Tidal disruption event
2005:Supermassive dark star
1923:Black holes in fiction
1908:Outline of black holes
1541:Supermassive dark star
1460:Gravitational collapse
580:W. M. Keck Observatory
569:radial-velocity method
2592:CXOU J061705.3+222127
1913:Black Hole Initiative
1726:Holographic principle
650:. It would be in the
525:. In 2019 a paper in
1716:Final parsec problem
1675:Schwarzschild radius
660:pair-instability gap
605:stripped helium star
523:constellation Gemini
285:stripped helium star
169:(approx. 2,300
2889:Astronomical events
2015:Superluminal motion
1990:Population III star
1960:Gravitational waves
1918:Black hole starship
1701:Information paradox
1125:2019Natur.575..618L
1066:. Space Daily. AFP.
708:List of black holes
587:Gaia Data Release 2
491:Database references
164:approx. 7,000
23:
1849:Optical black hole
1762:ReissnerāNordstrƶm
1721:Firewall (physics)
1626:Gravitational lens
997:. 27 November 2019
880:. 29 November 2019
533:stellar black hole
129: -1.889
117: -0.067
21:
2923:
2922:
2905:
2904:
2879:
2878:
2821:
2820:
2775:
2774:
2696:
2695:
2645:
2644:
2202:
2201:
1995:Supermassive star
1985:Naked singularity
1980:Membrane paradigm
1706:Cosmic censorship
1680:Spaghettification
1668:Immirzi parameter
1621:Hawking radiation
1562:Astrophysical jet
1531:Supermassive star
1521:Binary black hole
1455:Stellar evolution
1397:Intermediate-mass
1109:(7784): 618ā621.
989:(Press release).
673:binary black hole
648:stellar evolution
578:in Spain and the
567:(LAMOST) and the
509:
508:
3031:
3009:B-type subgiants
2976:
2975:
2964:
2963:
2962:
2952:
2951:
2940:
2939:
2938:
2931:
2915:
2914:
2885:
2884:
2832:
2831:
2781:
2780:
2709:
2708:
2651:
2650:
2267:
2266:
2229:
2222:
2215:
2206:
2205:
2192:
2191:
2182:
2181:
1854:Sonic black hole
1803:Dark-energy star
1658:Bekenstein bound
1643:Māsigma relation
1572:Ring singularity
1352:
1256:
1249:
1242:
1233:
1232:
1209:
1208:
1206:
1204:
1187:
1181:
1180:
1178:
1176:
1169:Business Insider
1159:
1153:
1152:
1118:
1096:
1087:
1086:
1074:
1068:
1067:
1059:
1053:
1052:
1044:
1038:
1037:
1035:
1033:
1027:ScienceAlert.com
1018:
1007:
1006:
1004:
1002:
983:
972:
971:
969:
951:
927:
916:
915:
913:
911:
896:
890:
889:
887:
885:
870:
864:
863:
861:
843:
819:
804:
794:
792:
782:
772:
739:
630:Unseen companion
595:
554:
482:
480:
477:
457:
455:
407:
405:
380:
378:
375:
355:
353:
303:
301:
274:
272:
250:
248:
225:
223:
206:
201:
128:
116:
87:
67:
62:
27:Observation data
24:
20:
3039:
3038:
3034:
3033:
3032:
3030:
3029:
3028:
2984:
2983:
2982:
2970:
2960:
2958:
2946:
2936:
2934:
2926:
2924:
2919:
2901:
2875:
2856:
2817:
2771:
2750:
2703:
2692:
2641:
2587:2MASS 0727+1710
2575:
2542:
2524:
2466:
2393:
2256:
2238:
2233:
2203:
2198:
2170:
2146:ULAS J1342+0928
2106:SDSS J0849+1114
2091:Phoenix Cluster
2044:
1896:
1858:
1837:
1776:
1735:
1731:No-hair theorem
1684:
1638:Bondi accretion
1604:Penrose process
1550:
1516:Gamma-ray burst
1443:
1353:
1344:
1330:Direct collapse
1278:
1265:
1260:
1217:
1212:
1202:
1200:
1188:
1184:
1174:
1172:
1160:
1156:
1097:
1090:
1083:Washington Post
1075:
1071:
1060:
1056:
1051:. EarthSky.org.
1045:
1041:
1031:
1029:
1019:
1010:
1000:
998:
985:
984:
975:
928:
919:
909:
907:
898:
897:
893:
883:
881:
872:
871:
867:
820:
807:
743:Brown, A. G. A.
740:
725:
721:
699:
684:
681:
632:
613:
610:
590:
552:
549:
478:
475:
473:
453:
451:
441:Surface gravity
433:
430:
415:
412:
403:
401:
376:
373:
371:
351:
349:
339:Surface gravity
331:
328:
311:
308:
299:
297:
270:
268:
264:
262:
246:
244:
240:
238:
221:
219:
199:
197:
168:
125:
82:
65:
60:Right ascension
58:
28:
17:
12:
11:
5:
3037:
3027:
3026:
3021:
3019:Variable stars
3016:
3011:
3006:
3001:
2996:
2981:
2980:
2968:
2956:
2944:
2921:
2920:
2910:
2907:
2906:
2903:
2902:
2900:
2899:
2893:
2891:
2881:
2880:
2877:
2876:
2874:
2873:
2868:
2864:
2862:
2858:
2857:
2855:
2854:
2849:
2844:
2838:
2836:
2829:
2823:
2822:
2819:
2818:
2816:
2815:
2810:
2805:
2800:
2795:
2789:
2787:
2777:
2776:
2773:
2772:
2770:
2769:
2764:
2758:
2756:
2752:
2751:
2749:
2748:
2743:
2738:
2733:
2728:
2723:
2717:
2715:
2706:
2698:
2697:
2694:
2693:
2691:
2690:
2685:
2680:
2675:
2670:
2665:
2659:
2657:
2647:
2646:
2643:
2642:
2640:
2639:
2634:
2629:
2627:PSR J0659+1414
2624:
2619:
2614:
2609:
2604:
2599:
2594:
2589:
2583:
2581:
2577:
2576:
2574:
2573:
2568:
2563:
2558:
2552:
2550:
2544:
2543:
2541:
2540:
2534:
2532:
2526:
2525:
2523:
2522:
2517:
2512:
2507:
2502:
2497:
2492:
2487:
2482:
2476:
2474:
2468:
2467:
2465:
2464:
2459:
2454:
2449:
2444:
2439:
2434:
2429:
2424:
2419:
2414:
2409:
2403:
2401:
2395:
2394:
2392:
2391:
2386:
2381:
2376:
2371:
2366:
2361:
2356:
2351:
2346:
2341:
2336:
2331:
2326:
2321:
2316:
2311:
2306:
2301:
2296:
2291:
2286:
2281:
2275:
2273:
2264:
2258:
2257:
2255:
2254:
2249:
2243:
2240:
2239:
2232:
2231:
2224:
2217:
2209:
2200:
2199:
2197:
2196:
2186:
2175:
2172:
2171:
2169:
2168:
2166:Swift J1644+57
2163:
2158:
2153:
2148:
2143:
2138:
2133:
2128:
2123:
2118:
2116:MS 0735.6+7421
2113:
2108:
2103:
2098:
2093:
2088:
2083:
2081:Sagittarius A*
2078:
2073:
2068:
2063:
2058:
2052:
2050:
2046:
2045:
2043:
2042:
2037:
2032:
2027:
2022:
2017:
2012:
2007:
2002:
1997:
1992:
1987:
1982:
1977:
1972:
1967:
1962:
1957:
1956:
1955:
1950:
1940:
1935:
1930:
1925:
1920:
1915:
1910:
1904:
1902:
1898:
1897:
1895:
1894:
1889:
1884:
1879:
1874:
1868:
1866:
1860:
1859:
1857:
1856:
1851:
1845:
1843:
1839:
1838:
1836:
1835:
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66:06 11 49.0763
64:
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47:Constellation
45:
44:
41:
38:
34:
31:
25:
19:
3004:Binary stars
2621:
2096:PKS 1302-102
1970:Gravity well
1938:Compact star
1892:Microquasars
1877:Most massive
1781:Alternatives
1546:X-ray binary
1465:Neutron star
1402:Supermassive
1379:Hawking star
1320:Supermassive
1201:. Retrieved
1195:
1185:
1173:. Retrieved
1167:
1157:
1106:
1100:
1082:
1072:
1057:
1042:
1030:. Retrieved
1026:
999:. Retrieved
939:
935:
908:. Retrieved
903:
894:
882:. Retrieved
877:
868:
831:
827:
760:
754:
748:
691:
687:neutron star
677:
644:solar masses
637:
633:
620:
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510:
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444:
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342:
337:
317:
290:
256:
230:
213:Eccentricity
211:
189:
157:
141:
106:
18:
2678:HD 59686 Ab
2304:Ī¶ (Mekbuda)
2299:Īµ (Mebsuta)
2086:Centaurus A
2040:Planet Nine
1943:Exotic star
1872:Black holes
1818:Planck star
1767:KerrāNewman
1482:White dwarf
1432:Radio-Quiet
1390:Microquasar
1263:Black holes
1203:29 November
1175:29 November
1032:29 November
1001:29 November
995:EurekAlert!
910:31 December
884:31 December
618:satellite.
591:2,300
557:B-type star
537:B-type star
519:star system
468:Temperature
426:1,260
366:Temperature
265:(secondary)
73:Declination
2988:Categories
2897:GRB 070125
2808:NGC 2371-2
2767:Messier 35
2673:HD 50554 b
2655:Exoplanets
2602:Gliese 251
2349:Īæ (Jishui)
2344:Ī¾ (Alzirr)
2309:Ī· (Propus)
2289:Ī³ (Alhena)
2284:Ī² (Pollux)
2279:Ī± (Castor)
2136:Q0906+6930
2126:Hercules A
2056:Cygnus X-1
2025:White hole
2000:Quasi-star
1953:Preon star
1948:Quark star
1933:Big Bounce
1793:Black star
1751:Derivation
1599:Ergosphere
1555:Properties
1536:Quasi-star
1526:Quark star
1437:Radio-Loud
1325:Primordial
1315:Kugelblitz
1116:1911.11989
949:1912.08338
906:. May 2020
841:2004.12882
770:1804.09365
719:References
669:LIGO-Virgo
640:black hole
553:LS V+22 25
443:(log
422:Luminosity
341:(log
319:Luminosity
202:0.01
96:Astrometry
2942:Astronomy
2762:Koposov 2
2668:HAT-P-50b
2663:HAT-P-24b
2399:Flamsteed
2334:Ī¼ (Tejat)
2294:Ī“ (Wasat)
2161:AT2018hyz
1808:Gravastar
1798:Dark star
1631:Microlens
1504:Hypernova
1499:Micronova
1494:Supernova
1448:Formation
1149:208310287
904:Space.com
324:630
241:(primary)
86: (V)
3024:Be stars
2917:Category
2827:Galaxies
2813:NGC 2392
2704:clusters
2683:Pollux b
2617:HAT-P-33
2612:HAT-P-24
2607:HAT-P-20
2472:Variable
2184:Category
2071:A0620-00
2030:Wormhole
1928:Big Bang
1828:Fuzzball
1711:ER = EPR
1577:Theorems
1375:Electron
1370:Extremal
1300:Rotating
1197:CBS News
1141:31776491
697:See also
683:☉
612:☉
432:☉
414:☉
330:☉
310:☉
159:Distance
143:Parallax
2954:Physics
2928:Portals
2785:Nebulae
2597:Geminga
2194:Commons
2156:P172+18
2111:TON 618
2049:Notable
1901:Related
1887:Quasars
1882:Nearest
1842:Analogs
1772:Hayward
1740:Metrics
1385:Stellar
1310:Virtual
1305:Charged
1274:Outline
1121:Bibcode
954:Bibcode
846:Bibcode
775:Bibcode
703:HR 6819
624:Be star
555:, is a
541:Be star
521:in the
389:Be star
280:Details
37:Equinox
2871:IC 485
2798:IC 444
2793:IC 443
2571:260655
2462:81 (g)
2457:74 (f)
2452:65 (b)
2447:64 (b)
2442:57 (A)
2437:38 (e)
2131:3C 273
2121:NeVe 1
2101:OJ 287
1823:Q star
1689:Issues
1422:Blazar
1412:Quasar
1147:
1139:
1102:Nature
942:: L5.
834:: L6.
801:VizieR
763:. A1.
528:Nature
516:binary
498:SIMBAD
483:
458:
408:
381:
356:
304:
191:Period
90:11.51
52:Gemini
2966:Space
2861:Other
2755:Other
2580:Other
2566:63433
2561:50554
2556:44780
2271:Bayer
2262:Stars
1864:Lists
1365:Micro
1335:Rogue
1283:Types
1145:S2CID
1111:arXiv
944:arXiv
836:arXiv
795:
765:arXiv
514:is a
198:78.80
183:Orbit
127:Dec.:
40:J2000
33:J2000
30:Epoch
22:LB-1
2978:Star
2852:2357
2847:2294
2842:2291
2746:2420
2741:2355
2736:2277
2731:2266
2726:2158
2721:2129
2702:Star
2622:LB-1
2538:2877
2520:V429
1833:Geon
1757:Kerr
1358:Size
1205:2019
1177:2019
1137:PMID
1034:2019
1003:2019
912:2020
886:2020
749:Gaia
616:Gaia
547:Star
512:LB-1
504:data
481:2000
396:Mass
292:Mass
275:km/s
269:11.2
251:km/s
245:52.9
224:0.01
2835:NGC
2713:NGC
1427:OVV
1417:LQG
1129:doi
1107:575
962:doi
940:633
878:CNN
854:doi
832:630
799:at
785:doi
761:616
561:Sun
476:000
460:cgs
456:0.3
452:4.0
379:500
374:700
358:cgs
354:0.2
350:3.0
302:0.4
298:1.5
273:1.0
249:0.1
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