# University of Hertfordshire

## Constraints on the circumstellar dust around KIC 8462852

Research output: Contribution to journalLetterpeer-review

### Standard

Constraints on the circumstellar dust around KIC 8462852. / Thompson, M.A.; Scicluna, Peter ; Kemper, F.; Geach, James; Dunham, M. M.; Morata, Oscar; Ertel, S.; Ho, Paul T. P.; Dempsey, J. T.; Coulson, I.M.; Petitpas, G.; Kristensen, L.

In: Monthly Notices of the Royal Astronomical Society, Vol. 458, 01.05.2016, p. L39-L43.

Research output: Contribution to journalLetterpeer-review

### Harvard

Thompson, MA, Scicluna, P, Kemper, F, Geach, J, Dunham, MM, Morata, O, Ertel, S, Ho, PTP, Dempsey, JT, Coulson, IM, Petitpas, G & Kristensen, L 2016, 'Constraints on the circumstellar dust around KIC 8462852', Monthly Notices of the Royal Astronomical Society, vol. 458, pp. L39-L43. https://doi.org/10.1093/mnrasl/slw008

### APA

Thompson, M. A., Scicluna, P., Kemper, F., Geach, J., Dunham, M. M., Morata, O., Ertel, S., Ho, P. T. P., Dempsey, J. T., Coulson, I. M., Petitpas, G., & Kristensen, L. (2016). Constraints on the circumstellar dust around KIC 8462852. Monthly Notices of the Royal Astronomical Society, 458, L39-L43. https://doi.org/10.1093/mnrasl/slw008

### Author

Thompson, M.A. ; Scicluna, Peter ; Kemper, F. ; Geach, James ; Dunham, M. M. ; Morata, Oscar ; Ertel, S. ; Ho, Paul T. P. ; Dempsey, J. T. ; Coulson, I.M. ; Petitpas, G. ; Kristensen, L. / Constraints on the circumstellar dust around KIC 8462852. In: Monthly Notices of the Royal Astronomical Society. 2016 ; Vol. 458. pp. L39-L43.

### Bibtex

@article{efda2638e75744068ccaa6606fbfc035,
title = "Constraints on the circumstellar dust around KIC 8462852",
abstract = "We present millimetre (SMA) and sub-millimetre (SCUBA-2) continuum observations of the peculiar star KIC 8462852 which displayed several deep and aperiodic dips in brightness during the Kepler mission. Our observations are approximately confusion-limited at 850 $\mu$m and are the deepest millimetre and sub-millimetre photometry of the star that has yet been carried out. No significant emission is detected towards KIC 8462852. We determine upper limits for dust between a few 10$^{-6}$ M$_{\oplus}$ and 10$^{-3}$ M$_{\oplus}$ for regions identified as the most likely to host occluding dust clumps and a total overall dust budget of $<$7.7 M$_{\oplus}$ within a radius of 200 AU. Such low limits for the inner system make the catastrophic planetary disruption hypothesis unlikely. Integrating over the Kepler lightcurve we determine that at least 10$^{-9}$ M$_{\oplus}$ of dust is required to cause the observed Q16 dip. This is consistent with the currently most favoured cometary breakup hypothesis, but nevertheless implies the complete breakup of $\sim$ 30 Comet 1/P Halley type objects. Finally, in the wide SCUBA-2 field-of-view we identify another candidate debris disc system that is potentially the largest yet discovered.",
author = "M.A. Thompson and Peter Scicluna and F. Kemper and James Geach and Dunham, {M. M.} and Oscar Morata and S. Ertel and Ho, {Paul T. P.} and Dempsey, {J. T.} and I.M. Coulson and G. Petitpas and L. Kristensen",
note = "{\textcopyright} The Authors 2016. Published by Oxford University Press on behalf of The Royal Astronomical Society. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.",
year = "2016",
month = may,
day = "1",
doi = "10.1093/mnrasl/slw008",
language = "English",
volume = "458",
pages = "L39--L43",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",

}

### RIS

TY - JOUR

T1 - Constraints on the circumstellar dust around KIC 8462852

AU - Thompson, M.A.

AU - Scicluna, Peter

AU - Kemper, F.

AU - Geach, James

AU - Dunham, M. M.

AU - Morata, Oscar

AU - Ertel, S.

AU - Ho, Paul T. P.

AU - Dempsey, J. T.

AU - Coulson, I.M.

AU - Petitpas, G.

AU - Kristensen, L.

N1 - © The Authors 2016. Published by Oxford University Press on behalf of The Royal Astronomical Society. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

PY - 2016/5/1

Y1 - 2016/5/1

N2 - We present millimetre (SMA) and sub-millimetre (SCUBA-2) continuum observations of the peculiar star KIC 8462852 which displayed several deep and aperiodic dips in brightness during the Kepler mission. Our observations are approximately confusion-limited at 850 $\mu$m and are the deepest millimetre and sub-millimetre photometry of the star that has yet been carried out. No significant emission is detected towards KIC 8462852. We determine upper limits for dust between a few 10$^{-6}$ M$_{\oplus}$ and 10$^{-3}$ M$_{\oplus}$ for regions identified as the most likely to host occluding dust clumps and a total overall dust budget of $<$7.7 M$_{\oplus}$ within a radius of 200 AU. Such low limits for the inner system make the catastrophic planetary disruption hypothesis unlikely. Integrating over the Kepler lightcurve we determine that at least 10$^{-9}$ M$_{\oplus}$ of dust is required to cause the observed Q16 dip. This is consistent with the currently most favoured cometary breakup hypothesis, but nevertheless implies the complete breakup of $\sim$ 30 Comet 1/P Halley type objects. Finally, in the wide SCUBA-2 field-of-view we identify another candidate debris disc system that is potentially the largest yet discovered.

AB - We present millimetre (SMA) and sub-millimetre (SCUBA-2) continuum observations of the peculiar star KIC 8462852 which displayed several deep and aperiodic dips in brightness during the Kepler mission. Our observations are approximately confusion-limited at 850 $\mu$m and are the deepest millimetre and sub-millimetre photometry of the star that has yet been carried out. No significant emission is detected towards KIC 8462852. We determine upper limits for dust between a few 10$^{-6}$ M$_{\oplus}$ and 10$^{-3}$ M$_{\oplus}$ for regions identified as the most likely to host occluding dust clumps and a total overall dust budget of $<$7.7 M$_{\oplus}$ within a radius of 200 AU. Such low limits for the inner system make the catastrophic planetary disruption hypothesis unlikely. Integrating over the Kepler lightcurve we determine that at least 10$^{-9}$ M$_{\oplus}$ of dust is required to cause the observed Q16 dip. This is consistent with the currently most favoured cometary breakup hypothesis, but nevertheless implies the complete breakup of $\sim$ 30 Comet 1/P Halley type objects. Finally, in the wide SCUBA-2 field-of-view we identify another candidate debris disc system that is potentially the largest yet discovered.

U2 - 10.1093/mnrasl/slw008

DO - 10.1093/mnrasl/slw008

M3 - Letter

VL - 458

SP - L39-L43

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

ER -