A 421-d activity cycle in the BeX recurrent transient A0538-66 from MACHO monitoring

C. Alcock, R.A. Allsman, D.R. Alves, T.S. Axelrod, A.C. Becker, D.P. Bennett, P.A. Charles, K.H. Cook, A.J. Drake, K.C. Freeman, M. Geha, K. Griest, M.J. Lehner, S.L. Marshall, K.E. Mcgowan, D. Minniti, C.A. Nelson, B.A. Peterson, P. Popowski, M.R. Pratt & 6 others Peter Quinn, C.W. Stubbs, W. Sutherland, A.B. Tomaney, T. Vandehei, D.L. Welch

    Research output: Contribution to journalArticle

    24 Citations (Scopus)

    Abstract

    We present a similar to5-yr optical light curve of the recurrent Be/X-ray transient A0538-66 obtained as a by-product of the MACHO Project. These data reveal both a long-term modulation at P=420.8 +/-0.8 d and a short-term modulation at 16.6510 +/-0.0022 d which, within errors, confirms the previously found orbital period. Furthermore, the orbital activity is only seen at certain phases of the 421-d cycle, suggesting that the long-term modulation is related to variations in the Be star envelope.
    Original languageEnglish
    Pages (from-to)678-684
    JournalMonthly Notices of the Royal Astronomical Society
    Volume321
    Issue number4
    DOIs
    Publication statusPublished - 2001

    Fingerprint

    massive compact halo objects
    modulation
    monitoring
    orbitals
    light curve
    envelopes
    stars
    cycles
    by-product
    project
    x rays

    Cite this

    Alcock, C., Allsman, R. A., Alves, D. R., Axelrod, T. S., Becker, A. C., Bennett, D. P., ... Welch, D. L. (2001). A 421-d activity cycle in the BeX recurrent transient A0538-66 from MACHO monitoring. Monthly Notices of the Royal Astronomical Society, 321(4), 678-684. https://doi.org/10.1046/j.1365-8711.2001.04041.x
    Alcock, C. ; Allsman, R.A. ; Alves, D.R. ; Axelrod, T.S. ; Becker, A.C. ; Bennett, D.P. ; Charles, P.A. ; Cook, K.H. ; Drake, A.J. ; Freeman, K.C. ; Geha, M. ; Griest, K. ; Lehner, M.J. ; Marshall, S.L. ; Mcgowan, K.E. ; Minniti, D. ; Nelson, C.A. ; Peterson, B.A. ; Popowski, P. ; Pratt, M.R. ; Quinn, Peter ; Stubbs, C.W. ; Sutherland, W. ; Tomaney, A.B. ; Vandehei, T. ; Welch, D.L. / A 421-d activity cycle in the BeX recurrent transient A0538-66 from MACHO monitoring. In: Monthly Notices of the Royal Astronomical Society. 2001 ; Vol. 321, No. 4. pp. 678-684.
    @article{f3ebc9845bcf40fbbecc65b913aec4f8,
    title = "A 421-d activity cycle in the BeX recurrent transient A0538-66 from MACHO monitoring",
    abstract = "We present a similar to5-yr optical light curve of the recurrent Be/X-ray transient A0538-66 obtained as a by-product of the MACHO Project. These data reveal both a long-term modulation at P=420.8 +/-0.8 d and a short-term modulation at 16.6510 +/-0.0022 d which, within errors, confirms the previously found orbital period. Furthermore, the orbital activity is only seen at certain phases of the 421-d cycle, suggesting that the long-term modulation is related to variations in the Be star envelope.",
    author = "C. Alcock and R.A. Allsman and D.R. Alves and T.S. Axelrod and A.C. Becker and D.P. Bennett and P.A. Charles and K.H. Cook and A.J. Drake and K.C. Freeman and M. Geha and K. Griest and M.J. Lehner and S.L. Marshall and K.E. Mcgowan and D. Minniti and C.A. Nelson and B.A. Peterson and P. Popowski and M.R. Pratt and Peter Quinn and C.W. Stubbs and W. Sutherland and A.B. Tomaney and T. Vandehei and D.L. Welch",
    year = "2001",
    doi = "10.1046/j.1365-8711.2001.04041.x",
    language = "English",
    volume = "321",
    pages = "678--684",
    journal = "Monthly Notices of the Royal Astronomical Society",
    issn = "0035-8711",
    publisher = "OXFORD UNIV PRESS UNITED KINGDOM",
    number = "4",

    }

    Alcock, C, Allsman, RA, Alves, DR, Axelrod, TS, Becker, AC, Bennett, DP, Charles, PA, Cook, KH, Drake, AJ, Freeman, KC, Geha, M, Griest, K, Lehner, MJ, Marshall, SL, Mcgowan, KE, Minniti, D, Nelson, CA, Peterson, BA, Popowski, P, Pratt, MR, Quinn, P, Stubbs, CW, Sutherland, W, Tomaney, AB, Vandehei, T & Welch, DL 2001, 'A 421-d activity cycle in the BeX recurrent transient A0538-66 from MACHO monitoring' Monthly Notices of the Royal Astronomical Society, vol. 321, no. 4, pp. 678-684. https://doi.org/10.1046/j.1365-8711.2001.04041.x

    A 421-d activity cycle in the BeX recurrent transient A0538-66 from MACHO monitoring. / Alcock, C.; Allsman, R.A.; Alves, D.R.; Axelrod, T.S.; Becker, A.C.; Bennett, D.P.; Charles, P.A.; Cook, K.H.; Drake, A.J.; Freeman, K.C.; Geha, M.; Griest, K.; Lehner, M.J.; Marshall, S.L.; Mcgowan, K.E.; Minniti, D.; Nelson, C.A.; Peterson, B.A.; Popowski, P.; Pratt, M.R.; Quinn, Peter; Stubbs, C.W.; Sutherland, W.; Tomaney, A.B.; Vandehei, T.; Welch, D.L.

    In: Monthly Notices of the Royal Astronomical Society, Vol. 321, No. 4, 2001, p. 678-684.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - A 421-d activity cycle in the BeX recurrent transient A0538-66 from MACHO monitoring

    AU - Alcock, C.

    AU - Allsman, R.A.

    AU - Alves, D.R.

    AU - Axelrod, T.S.

    AU - Becker, A.C.

    AU - Bennett, D.P.

    AU - Charles, P.A.

    AU - Cook, K.H.

    AU - Drake, A.J.

    AU - Freeman, K.C.

    AU - Geha, M.

    AU - Griest, K.

    AU - Lehner, M.J.

    AU - Marshall, S.L.

    AU - Mcgowan, K.E.

    AU - Minniti, D.

    AU - Nelson, C.A.

    AU - Peterson, B.A.

    AU - Popowski, P.

    AU - Pratt, M.R.

    AU - Quinn, Peter

    AU - Stubbs, C.W.

    AU - Sutherland, W.

    AU - Tomaney, A.B.

    AU - Vandehei, T.

    AU - Welch, D.L.

    PY - 2001

    Y1 - 2001

    N2 - We present a similar to5-yr optical light curve of the recurrent Be/X-ray transient A0538-66 obtained as a by-product of the MACHO Project. These data reveal both a long-term modulation at P=420.8 +/-0.8 d and a short-term modulation at 16.6510 +/-0.0022 d which, within errors, confirms the previously found orbital period. Furthermore, the orbital activity is only seen at certain phases of the 421-d cycle, suggesting that the long-term modulation is related to variations in the Be star envelope.

    AB - We present a similar to5-yr optical light curve of the recurrent Be/X-ray transient A0538-66 obtained as a by-product of the MACHO Project. These data reveal both a long-term modulation at P=420.8 +/-0.8 d and a short-term modulation at 16.6510 +/-0.0022 d which, within errors, confirms the previously found orbital period. Furthermore, the orbital activity is only seen at certain phases of the 421-d cycle, suggesting that the long-term modulation is related to variations in the Be star envelope.

    U2 - 10.1046/j.1365-8711.2001.04041.x

    DO - 10.1046/j.1365-8711.2001.04041.x

    M3 - Article

    VL - 321

    SP - 678

    EP - 684

    JO - Monthly Notices of the Royal Astronomical Society

    JF - Monthly Notices of the Royal Astronomical Society

    SN - 0035-8711

    IS - 4

    ER -