Knowledge (XXG)

Lambda Eridani variable

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Jerzykiewicz, M.; Kopacki, G.; Pigulski, A.; Kołaczkowski, Z.; Kim, S.-L. (2011). "A CCD Search for Variable Stars of Spectral Type B in the Northern Hemisphere Open Clusters. VIII. NGC 6834".
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International Variable Star Index defines a LERI type of variability, with 51 stars included as λ Eri variables, 16 of them only suspected, and 32 combined with other types of variation.
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that show small amplitude variations of a few hundredths of a magnitude. The variations are highly regular with periods between 0.5 and 2.0 days, and they were initially described as
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is an example and the prototype. This has been ascribed to non-radial pulsations, inhomogeneous rotating discs, or the rotation of the star itself.
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Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)".
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VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S
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VizieR On-line Data Catalog: B/VSX. Originally Published in: 2006SASS...25...47W
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for non-GCAS Be star variables. λ Eridani itself is incorrectly listed as a
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These stars are rarely classified, or are classified incorrectly. The
21: 77:"Tests of the Pulsation and Starspot Models for the Periodic Be-Stars" 784: 840: 130: 52: 285: 665: 289: 39:
does not have a type for λ Eridani variables, only GCAS for
155:"Search for duplicity in periodic variable Be stars" 802: 772: 751: 735: 728: 641: 606: 580: 545: 502: 495: 465: 437: 399: 332: 323: 81:Monthly Notices of the Royal Astronomical Society 251:Watson, C.; Henden, A. A.; et al. (2022). 231:American Association of Variable Star Observers 301: 8: 223:"Variable Star Type Designations in the VSX" 153:Carrier, F.; Burki, G.; Burnet, M. (2002). 732: 499: 329: 308: 294: 286: 178: 129: 100: 67: 7: 221:Otero, S. A.; Watson, C.; Wils, P. 37:General Catalogue of Variable Stars 14: 839: 1: 429:Blue large-amplitude pulsator 41:Gamma Cassiopeiae variables 891: 180:10.1051/0004-6361:20020174 159:Astronomy and Astrophysics 835: 870:Lambda Eridani variables 102:10.1093/mnras/277.4.1547 478:Solar-like oscillations 419:Slowly pulsating B-type 171:2002A&A...385..488C 18:Lambda Eridani Variable 555:Luminous blue variable 386:Rapidly oscillating Ap 75:Balona, L. A (1995). 743:Rotating ellipsoidal 651:AM Canum Venaticorum 598:RS Canum Venaticorum 49:Beta Cephei variable 780:α Canum Venaticorum 269:2015yCat....102027W 208:2009yCat....102025S 140:2011AcA....61..247J 93:1995MNRAS.277.1547B 764:FK Comae Berenices 560:R Coronae Borealis 350:Classical cepheids 857: 856: 822:Planetary transit 798: 797: 719: 712: 693: 679: 661:Luminous red nova 637: 636: 619:Gamma Cassiopeiae 572:Yellow hypergiant 568: 536: 529: 491: 490: 377: 357: 26:periodic Be stars 882: 844: 843: 733: 715: 708: 689: 675: 593:FS Canis Majoris 562: 532: 525: 500: 363: 347: 330: 310: 303: 296: 287: 280: 279: 277: 275: 248: 242: 241: 239: 237: 218: 212: 211: 191: 185: 184: 182: 150: 144: 143: 133: 118:Acta Astronomica 113: 107: 106: 104: 87:(4): 1547–1554. 72: 890: 889: 885: 884: 883: 881: 880: 879: 860: 859: 858: 853: 846:Star portal 838: 831: 827:W Ursae Majoris 794: 773:Magnetic fields 768: 747: 724: 633: 602: 588:Double periodic 581:Eruptive binary 576: 547: 541: 487: 461: 433: 401: 400:Blue-white with 395: 337: 319: 314: 284: 283: 273: 271: 250: 249: 245: 235: 233: 220: 219: 215: 193: 192: 188: 152: 151: 147: 115: 114: 110: 74: 73: 69: 64: 58: 12: 11: 5: 888: 886: 878: 877: 872: 862: 861: 855: 854: 836: 833: 832: 830: 829: 824: 819: 814: 808: 806: 800: 799: 796: 795: 793: 792: 787: 782: 776: 774: 770: 769: 767: 766: 761: 755: 753: 749: 748: 746: 745: 739: 737: 730: 726: 725: 723: 722: 721: 720: 713: 710:Symbiotic nova 701: 696: 695: 694: 682: 681: 680: 668: 663: 658: 653: 647: 645: 639: 638: 635: 634: 632: 631: 626: 624:Lambda Eridani 621: 616: 610: 608: 604: 603: 601: 600: 595: 590: 584: 582: 578: 577: 575: 574: 569: 557: 551: 549: 543: 542: 540: 539: 538: 537: 530: 518: 512: 510: 497: 493: 492: 489: 488: 486: 485: 480: 475: 469: 467: 463: 462: 460: 459: 457:Slow irregular 454: 449: 443: 441: 435: 434: 432: 431: 426: 421: 416: 411: 405: 403: 397: 396: 394: 393: 388: 383: 378: 358: 341: 339: 327: 321: 320: 317:Variable stars 315: 313: 312: 305: 298: 290: 282: 281: 243: 213: 186: 145: 124:(3): 247–273. 108: 66: 65: 63: 60: 30:Lambda Eridani 20:is a class of 13: 10: 9: 6: 4: 3: 2: 887: 876: 873: 871: 868: 867: 865: 852: 848: 847: 842: 834: 828: 825: 823: 820: 818: 815: 813: 810: 809: 807: 805: 801: 791: 788: 786: 783: 781: 778: 777: 775: 771: 765: 762: 760: 757: 756: 754: 752:Stellar spots 750: 744: 741: 740: 738: 736:Non-spherical 734: 731: 727: 718: 714: 711: 707: 706: 705: 702: 700: 697: 692: 688: 687: 686: 683: 678: 674: 673: 672: 669: 667: 664: 662: 659: 657: 654: 652: 649: 648: 646: 644: 640: 630: 627: 625: 622: 620: 617: 615: 612: 611: 609: 605: 599: 596: 594: 591: 589: 586: 585: 583: 579: 573: 570: 566: 561: 558: 556: 553: 552: 550: 544: 535: 531: 528: 524: 523: 522: 519: 517: 514: 513: 511: 509: 505: 501: 498: 494: 484: 481: 479: 476: 474: 473:Gamma Doradus 471: 470: 468: 464: 458: 455: 453: 450: 448: 445: 444: 442: 440: 436: 430: 427: 425: 424:PV Telescopii 422: 420: 417: 415: 412: 410: 407: 406: 404: 402:early spectra 398: 392: 389: 387: 384: 382: 379: 375: 371: 367: 362: 359: 355: 351: 346: 343: 342: 340: 335: 331: 328: 326: 322: 318: 311: 306: 304: 299: 297: 292: 291: 288: 270: 266: 262: 258: 254: 247: 244: 232: 228: 227:AAVSO Website 224: 217: 214: 209: 205: 201: 197: 190: 187: 181: 176: 172: 168: 164: 160: 156: 149: 146: 141: 137: 132: 127: 123: 119: 112: 109: 103: 98: 94: 90: 86: 82: 78: 71: 68: 61: 59: 56: 54: 50: 46: 42: 38: 33: 31: 27: 23: 19: 837: 717:Z Andromedae 699:SW Sextantis 677:Intermediate 623: 516:Herbig Ae/Be 391:SX Phoenicis 338:cepheid-like 272:. Retrieved 260: 256: 246: 234:. Retrieved 226: 216: 199: 195: 189: 162: 158: 148: 121: 117: 111: 84: 80: 70: 57: 34: 25: 17: 15: 759:BY Draconis 643:Cataclysmic 548:supergiants 483:White dwarf 452:Semiregular 439:Long-period 414:Beta Cephei 409:Alpha Cygni 366:BL Herculis 354:Delta Scuti 875:Star types 864:Categories 817:Beta Lyrae 790:SX Arietis 656:Dwarf nova 629:Wolf–Rayet 546:Giants and 527:FU Orionis 370:W Virginis 165:(2): 488. 62:References 804:Eclipsing 704:Symbiotic 691:Hypernova 685:Supernova 565:DY Persei 504:Protostar 325:Pulsating 131:1110.4064 729:Rotating 496:Eruptive 381:RR Lyrae 374:RV Tauri 334:Cepheids 22:Be stars 534:T Tauri 361:Type II 274:8 March 265:Bibcode 236:19 July 204:Bibcode 167:Bibcode 136:Bibcode 89:Bibcode 51:. The 785:Pulsar 345:Type I 812:Algol 671:Polar 614:Flare 607:Other 521:Orion 466:Other 126:arXiv 53:AAVSO 851:List 666:Nova 506:and 447:Mira 276:2024 238:2014 43:and 508:PMS 336:and 175:doi 163:385 97:doi 85:277 28:. 866:: 849:* 372:, 368:, 352:, 263:. 259:. 255:. 229:. 225:. 202:. 198:. 173:. 161:. 157:. 134:. 122:61 120:. 95:. 83:. 79:. 45:BE 16:A 567:) 563:( 376:) 364:( 356:) 348:( 309:e 302:t 295:v 278:. 267:: 261:1 240:. 210:. 206:: 200:1 183:. 177:: 169:: 142:. 138:: 128:: 105:. 99:: 91::

Index

Be stars
Lambda Eridani
General Catalogue of Variable Stars
Gamma Cassiopeiae variables
BE
Beta Cephei variable
AAVSO
"Tests of the Pulsation and Starspot Models for the Periodic Be-Stars"
Bibcode
1995MNRAS.277.1547B
doi
10.1093/mnras/277.4.1547
arXiv
1110.4064
Bibcode
2011AcA....61..247J
"Search for duplicity in periodic variable Be stars"
Bibcode
2002A&A...385..488C
doi
10.1051/0004-6361:20020174
Bibcode
2009yCat....102025S
"Variable Star Type Designations in the VSX"
American Association of Variable Star Observers
"VizieR Online Data Catalog: AAVSO International Variable Star Index VSX (Watson+, 2006-)"
Bibcode
2015yCat....102027W
v
t

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