publication . Article . Other literature type . Preprint . 2018

A Universal Spin–Mass Relation for Brown Dwarfs and Planets

Aleks Scholz; Keavin Moore; Ray Jayawardhana; Suzanne Aigrain; Dawn Peterson; Beate Stelzer;
Open Access English
  • Published: 04 Jun 2018
Abstract
While brown dwarfs show similarities with stars in their early life, their spin evolution is much more akin to that of planets. We have used lightcurves from the K2 mission to measure new rotation periods for 18 young brown dwarfs in the Taurus star-forming region. Our sample spans masses from 0.02 to 0.08 Msol and has been characterised extensively in the past. To search for periods, we utilize three different methods (autocorrelation, periodogram, Gaussian Processes). The median period for brown dwarfs with disks is twice as long as for those without (3.1 vs. 1.6 d), a signature of rotational braking by the disk, albeit with small numbers. With an overall medi...
Subjects
arXiv: Astrophysics::Earth and Planetary AstrophysicsAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Galaxy AstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysics
free text keywords: Brown dwarfs, formation [Planets and satellites], Protoplanetary disks, rotation [Stars], QB Astronomy, QC Physics, 3rd-DAS, BDC, QB, QC, Space and Planetary Science, Astronomy and Astrophysics, Stars, Light curve, Solar System, Rotation, Physics, Angular momentum, Planet, Brown dwarf, Astrophysics, Rotation period, Astronomy, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics
Related Organizations
Funded by
NSERC
Project
  • Funder: Natural Sciences and Engineering Research Council of Canada (NSERC)
,
RCUK| Astronomy at St Andrews 2018-2021
Project
  • Funder: Research Council UK (RCUK)
  • Project Code: ST/R000824/1
  • Funding stream: STFC
73 references, page 1 of 5

Aigrain S., Parviainen H., Pope B. J. S., 2016, MNRAS, 459, 2408

Ambikasaran S., Foreman-Mackey D., Greengard L., Hogg D. W., O'Neil M., 2015, ITPAM, 38,

Angus, R., Morton, T., Aigrain, S., Foreman-Mackey, D., & Rajpaul, V. 2018, MNRAS, 474, 2094

Arbab, A. I., Salih, S. E., Hassan, S. H., El Agali, A., & Abubaker, H. 2013, Ap&SS, 348, 57

Astropy Collaboration, Robitaille, T. P., Tollerud, E. J., et al. 2013, A&A, 558, A33

Barrado y Navascues, D., & Mart n, E. L. 2003, AJ, 126, 2997

Bara e, I., Homeier, D., Allard, F., & Chabrier, G. 2015, A&A, 577, A42

Bashi, D., Helled, R., Zucker, S., & Mordasini, C. 2017, A&A, 604, A83

Biller, B. A., Vos, J., Bonavita, M., et al. 2015, ApJL, 813, L23

Biller, B., Vos, J., Buenzli, E., et al. 2017, arXiv:1712.03746

Bouvier, J., Matt, S. P., Mohanty, S., et al. 2014, Protostars and Planets VI, 433

Brogi, M., de Kok, R. J., Albrecht, S., et al. 2016, ApJ, 817, 106

Bryan, M. L., Benneke, B., Knutson, H. A., Batygin, K., & Bowler, B. P. 2017, arXiv:1712.00457

Cieza, L., & Baliber, N. 2007, ApJ, 671, 605

Cody, A. M., & Hillenbrand, L. A. 2010, ApJS, 191, 389

73 references, page 1 of 5
Abstract
While brown dwarfs show similarities with stars in their early life, their spin evolution is much more akin to that of planets. We have used lightcurves from the K2 mission to measure new rotation periods for 18 young brown dwarfs in the Taurus star-forming region. Our sample spans masses from 0.02 to 0.08 Msol and has been characterised extensively in the past. To search for periods, we utilize three different methods (autocorrelation, periodogram, Gaussian Processes). The median period for brown dwarfs with disks is twice as long as for those without (3.1 vs. 1.6 d), a signature of rotational braking by the disk, albeit with small numbers. With an overall medi...
Subjects
arXiv: Astrophysics::Earth and Planetary AstrophysicsAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Galaxy AstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysics
free text keywords: Brown dwarfs, formation [Planets and satellites], Protoplanetary disks, rotation [Stars], QB Astronomy, QC Physics, 3rd-DAS, BDC, QB, QC, Space and Planetary Science, Astronomy and Astrophysics, Stars, Light curve, Solar System, Rotation, Physics, Angular momentum, Planet, Brown dwarf, Astrophysics, Rotation period, Astronomy, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics
Related Organizations
Funded by
NSERC
Project
  • Funder: Natural Sciences and Engineering Research Council of Canada (NSERC)
,
RCUK| Astronomy at St Andrews 2018-2021
Project
  • Funder: Research Council UK (RCUK)
  • Project Code: ST/R000824/1
  • Funding stream: STFC
73 references, page 1 of 5

Aigrain S., Parviainen H., Pope B. J. S., 2016, MNRAS, 459, 2408

Ambikasaran S., Foreman-Mackey D., Greengard L., Hogg D. W., O'Neil M., 2015, ITPAM, 38,

Angus, R., Morton, T., Aigrain, S., Foreman-Mackey, D., & Rajpaul, V. 2018, MNRAS, 474, 2094

Arbab, A. I., Salih, S. E., Hassan, S. H., El Agali, A., & Abubaker, H. 2013, Ap&SS, 348, 57

Astropy Collaboration, Robitaille, T. P., Tollerud, E. J., et al. 2013, A&A, 558, A33

Barrado y Navascues, D., & Mart n, E. L. 2003, AJ, 126, 2997

Bara e, I., Homeier, D., Allard, F., & Chabrier, G. 2015, A&A, 577, A42

Bashi, D., Helled, R., Zucker, S., & Mordasini, C. 2017, A&A, 604, A83

Biller, B. A., Vos, J., Bonavita, M., et al. 2015, ApJL, 813, L23

Biller, B., Vos, J., Buenzli, E., et al. 2017, arXiv:1712.03746

Bouvier, J., Matt, S. P., Mohanty, S., et al. 2014, Protostars and Planets VI, 433

Brogi, M., de Kok, R. J., Albrecht, S., et al. 2016, ApJ, 817, 106

Bryan, M. L., Benneke, B., Knutson, H. A., Batygin, K., & Bowler, B. P. 2017, arXiv:1712.00457

Cieza, L., & Baliber, N. 2007, ApJ, 671, 605

Cody, A. M., & Hillenbrand, L. A. 2010, ApJS, 191, 389

73 references, page 1 of 5
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