2016MNRAS.458L..39T

Query : 2016MNRAS.458L..39T

2016MNRAS.458L..39T - Mon. Not. R. Astron. Soc., 458, L39-L43 (2016/May-1)

Constraints on the circumstellar dust around KIC 8462852.

THOMPSON M.A., SCICLUNA P., KEMPER F., GEACH J.E., DUNHAM M.M., MORATA O., ERTEL S., HO P.T.P., DEMPSEY J., COULSON I., PETITPAS G. and KRISTENSEN L.E.

Abstract (from CDS):

We present millimetre (Submillimeter Array) and submillimetre (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 µm and are the deepest millimetre and submillimetre 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⊕ and 10–3 M⊕ for regions identified as the most likely to host occluding dust clumps and a total overall dust budget of Kepler light curve we determine that at least 10–9 M⊕ 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 ∼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.

Abstract Copyright: © 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 (

Journal keyword(s): circumstellar matter - stars: peculiar - submillimetre: galaxies - submillimetre: stars

Nomenclature: Table A1: [TSK2016] SMM NN (Nos 1-17).

Simbad objects: 25

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Number of rows : 25
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 2087 1
2 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 6022 1
3 [TSK2016] SMM 2 smm 20 05 50.0 +44 27 26           ~ 1 0
4 [TSK2016] SMM 1 smm 20 05 53.3 +44 28 53           ~ 1 0
5 [TSK2016] SMM 12 smm 20 05 55.4 +44 29 39           ~ 1 0
6 [TSK2016] SMM 7 smm 20 05 56.5 +44 26 13           ~ 1 0
7 [TSK2016] SMM 4 smm 20 05 56.9 +44 28 45           ~ 1 0
8 [TSK2016] SMM 11 smm 20 05 59.7 +44 29 11           ~ 1 0
9 [TSK2016] SMM 10 smm 20 06 03.3 +44 24 15           ~ 1 0
10 [TSK2016] SMM 15 smm 20 06 06.1 +44 25 53           ~ 1 0
11 TYC 3162-977-1 * 20 06 07.7412190944 +44 26 03.685638984   13.03 11.86     ~ 6 0
12 [TSK2016] SMM 14 smm 20 06 09.6 +44 26 09           ~ 1 0
13 [TSK2016] SMM 13 smm 20 06 15.2 +44 29 51           ~ 1 0
14 GSC 03162-00665 Er* 20 06 15.4526521026 +44 27 24.790869158   12.82 12.01 11.75   F3V 159 0
15 [TSK2016] SMM 8 smm 20 06 20.8 +44 27 47           ~ 1 0
16 [TSK2016] SMM 17 smm 20 06 24.7 +44 29 57           ~ 1 0
17 [TSK2016] SMM 6 smm 20 06 27.0 +44 31 25           ~ 1 0
18 [TSK2016] SMM 5 smm 20 06 28.7 +44 27 19           ~ 1 0
19 [TSK2016] SMM 3 smm 20 06 30.0 +44 29 45           ~ 1 0
20 [TSK2016] SMM 16 smm 20 06 32.4 +44 24 37           ~ 1 0
21 [TSK2016] SMM 9 smm 20 06 38.0 +44 29 35           ~ 1 0
22 EM* MWC 349A Or* 20 32 45.5291969760 +40 39 36.651807828           ~ 180 0
23 V* V1610 Cyg pA* 21 02 18.27 +36 41 37.0           F5Iae 892 1
24 * alf PsA PM* 22 57 39.04625 -29 37 20.0533 1.31 1.25 1.16 1.11 1.09 A4V 1303 3
25 HD 218396 El* 23 07 28.7157209544 +21 08 03.310767492   6.21 5.953     F0+VkA5mA5 1285 0

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