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; Peter Quinn; C.W. Stubbs; W. Sutherland; A.B. Tomaney; T. Vandehei; D.L. Welch

doi:10.1046/j.1365-8711.2001.04041.x

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. PrattPeter Quinn, C.W. Stubbs, W. Sutherland, A.B. Tomaney, T. Vandehei, D.L. Welch

Research output: Contribution to journal › Article › peer-review

25 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 language	English
Pages (from-to)	678-684
Journal	Monthly Notices of the Royal Astronomical Society
Volume	321
Issue number	4
DOIs	https://doi.org/10.1046/j.1365-8711.2001.04041.x
Publication status	Published - 2001

Access to Document

10.1046/j.1365-8711.2001.04041.x

Cite this

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., ... 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

@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 University Press",

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

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 -

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

Abstract

Access to Document

Fingerprint

Cite this