Two-Micron All-Sky Survey J01542930+0053266

A new eclipsing M dwarf binary system

A. C. Becker, E. Agol, N. M. Silvestri, J. J. Bochanski, C. Laws, A. A. West, G. Basri, V. Belokurov, D. M. Bramich, J. M. Carpenter, P. Challis, K. R. Covey, R. M. Cutri, N. W. Evans, M. Fellhauer, A. Garg, G. Gilmore, P. Hewett, P. Plavchan, Donald P. Schneider & 4 others C. L. Slesnick, S. Vidrih, L. M. Walkowicz, D. B. Zucker

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

We report on Two-Micron All-Sky Survey (2MASS) J01542930+0053266, a faint eclipsing system composed of two M dwarfs. The variability of this system was originally discovered during a pilot study of the 2MASS Calibration Point Source Working Data base. Additional photometry from the Sloan Digital Sky Survey yields an eight-passband light curve from which we derive an orbital period of 2.639 0157 ± 0.000 0016 d. Spectroscopic followup confirms our photometric classification of the system, which is likely composed of M0 and M1 dwarfs. Radial velocity measurements allow us to derive the masses (M 1 = 0.66 ± 0.03 M; M2 = 0.62 ± 0.03 M) and radii (R1 = 0.64 ± 0.08 R; R2 = 0.61 ± 0.09 R) of the components, which are consistent with empirical mass-radius relationships for low-mass stars in binary systems. We perform Monte Carlo simulations of the light curves which allow us to uncover complicated degeneracies between the system parameters. Both stars show evidence of Hα emission, something not common in early-type M dwarfs. This suggests that binarity may influence the magnetic activity properties of low-mass stars; activity in the binary may persist long after the dynamos in their isolated counterparts have decayed, yielding a new potential foreground of flaring activity for next generation variability surveys.

Original languageEnglish (US)
Pages (from-to)416-424
Number of pages9
JournalMonthly Notices of the Royal Astronomical Society
Volume386
Issue number1
DOIs
StatePublished - May 1 2008

Fingerprint

stars
light curve
rotating generators
radii
data bases
velocity measurement
radial velocity
point sources
point source
photometry
calibration
orbitals
simulation
data base
parameter
flaring

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Becker, A. C., Agol, E., Silvestri, N. M., Bochanski, J. J., Laws, C., West, A. A., ... Zucker, D. B. (2008). Two-Micron All-Sky Survey J01542930+0053266: A new eclipsing M dwarf binary system. Monthly Notices of the Royal Astronomical Society, 386(1), 416-424. https://doi.org/10.1111/j.1365-2966.2008.13040.x
Becker, A. C. ; Agol, E. ; Silvestri, N. M. ; Bochanski, J. J. ; Laws, C. ; West, A. A. ; Basri, G. ; Belokurov, V. ; Bramich, D. M. ; Carpenter, J. M. ; Challis, P. ; Covey, K. R. ; Cutri, R. M. ; Evans, N. W. ; Fellhauer, M. ; Garg, A. ; Gilmore, G. ; Hewett, P. ; Plavchan, P. ; Schneider, Donald P. ; Slesnick, C. L. ; Vidrih, S. ; Walkowicz, L. M. ; Zucker, D. B. / Two-Micron All-Sky Survey J01542930+0053266 : A new eclipsing M dwarf binary system. In: Monthly Notices of the Royal Astronomical Society. 2008 ; Vol. 386, No. 1. pp. 416-424.
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abstract = "We report on Two-Micron All-Sky Survey (2MASS) J01542930+0053266, a faint eclipsing system composed of two M dwarfs. The variability of this system was originally discovered during a pilot study of the 2MASS Calibration Point Source Working Data base. Additional photometry from the Sloan Digital Sky Survey yields an eight-passband light curve from which we derive an orbital period of 2.639 0157 ± 0.000 0016 d. Spectroscopic followup confirms our photometric classification of the system, which is likely composed of M0 and M1 dwarfs. Radial velocity measurements allow us to derive the masses (M 1 = 0.66 ± 0.03 M⊙; M2 = 0.62 ± 0.03 M⊙) and radii (R1 = 0.64 ± 0.08 R⊙; R2 = 0.61 ± 0.09 R⊙) of the components, which are consistent with empirical mass-radius relationships for low-mass stars in binary systems. We perform Monte Carlo simulations of the light curves which allow us to uncover complicated degeneracies between the system parameters. Both stars show evidence of Hα emission, something not common in early-type M dwarfs. This suggests that binarity may influence the magnetic activity properties of low-mass stars; activity in the binary may persist long after the dynamos in their isolated counterparts have decayed, yielding a new potential foreground of flaring activity for next generation variability surveys.",
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Becker, AC, Agol, E, Silvestri, NM, Bochanski, JJ, Laws, C, West, AA, Basri, G, Belokurov, V, Bramich, DM, Carpenter, JM, Challis, P, Covey, KR, Cutri, RM, Evans, NW, Fellhauer, M, Garg, A, Gilmore, G, Hewett, P, Plavchan, P, Schneider, DP, Slesnick, CL, Vidrih, S, Walkowicz, LM & Zucker, DB 2008, 'Two-Micron All-Sky Survey J01542930+0053266: A new eclipsing M dwarf binary system', Monthly Notices of the Royal Astronomical Society, vol. 386, no. 1, pp. 416-424. https://doi.org/10.1111/j.1365-2966.2008.13040.x

Two-Micron All-Sky Survey J01542930+0053266 : A new eclipsing M dwarf binary system. / Becker, A. C.; Agol, E.; Silvestri, N. M.; Bochanski, J. J.; Laws, C.; West, A. A.; Basri, G.; Belokurov, V.; Bramich, D. M.; Carpenter, J. M.; Challis, P.; Covey, K. R.; Cutri, R. M.; Evans, N. W.; Fellhauer, M.; Garg, A.; Gilmore, G.; Hewett, P.; Plavchan, P.; Schneider, Donald P.; Slesnick, C. L.; Vidrih, S.; Walkowicz, L. M.; Zucker, D. B.

In: Monthly Notices of the Royal Astronomical Society, Vol. 386, No. 1, 01.05.2008, p. 416-424.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Two-Micron All-Sky Survey J01542930+0053266

T2 - A new eclipsing M dwarf binary system

AU - Becker, A. C.

AU - Agol, E.

AU - Silvestri, N. M.

AU - Bochanski, J. J.

AU - Laws, C.

AU - West, A. A.

AU - Basri, G.

AU - Belokurov, V.

AU - Bramich, D. M.

AU - Carpenter, J. M.

AU - Challis, P.

AU - Covey, K. R.

AU - Cutri, R. M.

AU - Evans, N. W.

AU - Fellhauer, M.

AU - Garg, A.

AU - Gilmore, G.

AU - Hewett, P.

AU - Plavchan, P.

AU - Schneider, Donald P.

AU - Slesnick, C. L.

AU - Vidrih, S.

AU - Walkowicz, L. M.

AU - Zucker, D. B.

PY - 2008/5/1

Y1 - 2008/5/1

N2 - We report on Two-Micron All-Sky Survey (2MASS) J01542930+0053266, a faint eclipsing system composed of two M dwarfs. The variability of this system was originally discovered during a pilot study of the 2MASS Calibration Point Source Working Data base. Additional photometry from the Sloan Digital Sky Survey yields an eight-passband light curve from which we derive an orbital period of 2.639 0157 ± 0.000 0016 d. Spectroscopic followup confirms our photometric classification of the system, which is likely composed of M0 and M1 dwarfs. Radial velocity measurements allow us to derive the masses (M 1 = 0.66 ± 0.03 M⊙; M2 = 0.62 ± 0.03 M⊙) and radii (R1 = 0.64 ± 0.08 R⊙; R2 = 0.61 ± 0.09 R⊙) of the components, which are consistent with empirical mass-radius relationships for low-mass stars in binary systems. We perform Monte Carlo simulations of the light curves which allow us to uncover complicated degeneracies between the system parameters. Both stars show evidence of Hα emission, something not common in early-type M dwarfs. This suggests that binarity may influence the magnetic activity properties of low-mass stars; activity in the binary may persist long after the dynamos in their isolated counterparts have decayed, yielding a new potential foreground of flaring activity for next generation variability surveys.

AB - We report on Two-Micron All-Sky Survey (2MASS) J01542930+0053266, a faint eclipsing system composed of two M dwarfs. The variability of this system was originally discovered during a pilot study of the 2MASS Calibration Point Source Working Data base. Additional photometry from the Sloan Digital Sky Survey yields an eight-passband light curve from which we derive an orbital period of 2.639 0157 ± 0.000 0016 d. Spectroscopic followup confirms our photometric classification of the system, which is likely composed of M0 and M1 dwarfs. Radial velocity measurements allow us to derive the masses (M 1 = 0.66 ± 0.03 M⊙; M2 = 0.62 ± 0.03 M⊙) and radii (R1 = 0.64 ± 0.08 R⊙; R2 = 0.61 ± 0.09 R⊙) of the components, which are consistent with empirical mass-radius relationships for low-mass stars in binary systems. We perform Monte Carlo simulations of the light curves which allow us to uncover complicated degeneracies between the system parameters. Both stars show evidence of Hα emission, something not common in early-type M dwarfs. This suggests that binarity may influence the magnetic activity properties of low-mass stars; activity in the binary may persist long after the dynamos in their isolated counterparts have decayed, yielding a new potential foreground of flaring activity for next generation variability surveys.

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U2 - 10.1111/j.1365-2966.2008.13040.x

DO - 10.1111/j.1365-2966.2008.13040.x

M3 - Article

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SP - 416

EP - 424

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

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