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Massive Search for Spot- and Facula-Crossing Events in 1598 Exoplanetary Transit Light Curves. / Baluev, R. V.; Sokov, E. N.; Sokova, I. A.; Shaidulin, V. Sh.; Veselova, A. V.; Aitov, V. N.; Mitiani, G. Sh.; Valeev, A.F.; Gadelshin, D.R.; Gutaev, A. G.; Beskin, G. M.; Valyavin, G. G.; Antonyuk, K.; Barkaoui, K.; Gillon, M.; Jehin, E.; Delrez, L.; Guðmundsson, S.; Dale, H. A.; Fernández-Lajús, E.; Di Sisto, R. P.; Bretton, M.; Wunsche, A.; Hentunen, V.-P.; Shadick, S.; Jongen, Y.; Kang, W.; Kim, T.; Pakštienė, E.; Qvam, J. K. T.; Knight, C. R.; Guerra, P.; Marchini, A.; Salvaggio, F.; Papini, R.; Evans, P.; Salisbury, M.; Garlitz, J.; Esseiva, N.; Ogmen, Y.; Bosch-Cabot, P.; Selezneva, A.; Hinse, T. C.

In: Acta Astronomica, Vol. 71, No. 1, 2021, p. 25-53.

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

Harvard

Baluev, RV, Sokov, EN, Sokova, IA, Shaidulin, VS, Veselova, AV, Aitov, VN, Mitiani, GS, Valeev, AF, Gadelshin, DR, Gutaev, AG, Beskin, GM, Valyavin, GG, Antonyuk, K, Barkaoui, K, Gillon, M, Jehin, E, Delrez, L, Guðmundsson, S, Dale, HA, Fernández-Lajús, E, Di Sisto, RP, Bretton, M, Wunsche, A, Hentunen, V-P, Shadick, S, Jongen, Y, Kang, W, Kim, T, Pakštienė, E, Qvam, JKT, Knight, CR, Guerra, P, Marchini, A, Salvaggio, F, Papini, R, Evans, P, Salisbury, M, Garlitz, J, Esseiva, N, Ogmen, Y, Bosch-Cabot, P, Selezneva, A & Hinse, TC 2021, 'Massive Search for Spot- and Facula-Crossing Events in 1598 Exoplanetary Transit Light Curves', Acta Astronomica, vol. 71, no. 1, pp. 25-53. https://doi.org/10.32023/0001-5237/71.1.2

APA

Baluev, R. V., Sokov, E. N., Sokova, I. A., Shaidulin, V. S., Veselova, A. V., Aitov, V. N., Mitiani, G. S., Valeev, A. F., Gadelshin, D. R., Gutaev, A. G., Beskin, G. M., Valyavin, G. G., Antonyuk, K., Barkaoui, K., Gillon, M., Jehin, E., Delrez, L., Guðmundsson, S., Dale, H. A., ... Hinse, T. C. (2021). Massive Search for Spot- and Facula-Crossing Events in 1598 Exoplanetary Transit Light Curves. Acta Astronomica, 71(1), 25-53. https://doi.org/10.32023/0001-5237/71.1.2

Vancouver

Baluev RV, Sokov EN, Sokova IA, Shaidulin VS, Veselova AV, Aitov VN et al. Massive Search for Spot- and Facula-Crossing Events in 1598 Exoplanetary Transit Light Curves. Acta Astronomica. 2021;71(1):25-53. https://doi.org/10.32023/0001-5237/71.1.2

Author

Baluev, R. V. ; Sokov, E. N. ; Sokova, I. A. ; Shaidulin, V. Sh. ; Veselova, A. V. ; Aitov, V. N. ; Mitiani, G. Sh. ; Valeev, A.F. ; Gadelshin, D.R. ; Gutaev, A. G. ; Beskin, G. M. ; Valyavin, G. G. ; Antonyuk, K. ; Barkaoui, K. ; Gillon, M. ; Jehin, E. ; Delrez, L. ; Guðmundsson, S. ; Dale, H. A. ; Fernández-Lajús, E. ; Di Sisto, R. P. ; Bretton, M. ; Wunsche, A. ; Hentunen, V.-P. ; Shadick, S. ; Jongen, Y. ; Kang, W. ; Kim, T. ; Pakštienė, E. ; Qvam, J. K. T. ; Knight, C. R. ; Guerra, P. ; Marchini, A. ; Salvaggio, F. ; Papini, R. ; Evans, P. ; Salisbury, M. ; Garlitz, J. ; Esseiva, N. ; Ogmen, Y. ; Bosch-Cabot, P. ; Selezneva, A. ; Hinse, T. C. / Massive Search for Spot- and Facula-Crossing Events in 1598 Exoplanetary Transit Light Curves. In: Acta Astronomica. 2021 ; Vol. 71, No. 1. pp. 25-53.

BibTeX

@article{a964d012608e4478bc0e99986794c2d9,
title = "Massive Search for Spot- and Facula-Crossing Events in 1598 Exoplanetary Transit Light Curves",
abstract = "We developed a dedicated statistical test for a massive detection of spot- A nd facula-crossing anomalies in multiple exoplanetary transit light curves, based on the frequentist p-value thresholding. This test was used to augment our algorithmic pipeline for transit light curves analysis. It was applied to 1598 amateur and professional transit observations of 26 targets being monitored in the EXPANSION project. We detected 109 statistically significant candidate events revealing a roughly 2 : 1 asymmetry in favor of spots-crossings over faculae-crossings. Although some candidate anomalies likely appear non-physical and originate from systematic errors, such asymmetry between negative and positive events should indicate a physical difference between the frequency of star spots and faculae. Detected spot-crossing events also reveal positive correlation between their amplitude and width, possibly due to spot size correlation. However, the frequency of all detectable crossing events appears just about a few per cent, so they cannot explain excessive transit timing noise observed for several targets.",
keywords = "Planetary systems-techniques: Photometric-starspots, PHYSICAL-PROPERTIES, HIGH-PRECISION PHOTOMETRY, TIME-SERIES ANALYSIS, EXTRASOLAR PLANET, starspots, TIMING VARIATIONS, PLANETARY SYSTEM, REFINED PARAMETERS, Techniques: photometric, HOT JUPITER, TRANSMISSION SPECTRUM, RADIAL-VELOCITY, Planetary systems",
author = "Baluev, {R. V.} and Sokov, {E. N.} and Sokova, {I. A.} and Shaidulin, {V. Sh.} and Veselova, {A. V.} and Aitov, {V. N.} and Mitiani, {G. Sh.} and A.F. Valeev and D.R. Gadelshin and Gutaev, {A. G.} and Beskin, {G. M.} and Valyavin, {G. G.} and K. Antonyuk and K. Barkaoui and M. Gillon and E. Jehin and L. Delrez and S. Gu{\dh}mundsson and Dale, {H. A.} and E. Fern{\'a}ndez-Laj{\'u}s and {Di Sisto}, {R. P.} and M. Bretton and A. Wunsche and V.-P. Hentunen and S. Shadick and Y. Jongen and W. Kang and T. Kim and E. Pak{\v s}tienė and Qvam, {J. K. T.} and Knight, {C. R.} and P. Guerra and A. Marchini and F. Salvaggio and R. Papini and P. Evans and M. Salisbury and J. Garlitz and N. Esseiva and Y. Ogmen and P. Bosch-Cabot and A. Selezneva and Hinse, {T. C.}",
year = "2021",
doi = "10.32023/0001-5237/71.1.2",
language = "English",
volume = "71",
pages = "25--53",
journal = "Acta Astronomica",
issn = "0001-5237",
publisher = "Copernicus Foundation for Polish Astronomy",
number = "1",

}

RIS

TY - JOUR

T1 - Massive Search for Spot- and Facula-Crossing Events in 1598 Exoplanetary Transit Light Curves

AU - Baluev, R. V.

AU - Sokov, E. N.

AU - Sokova, I. A.

AU - Shaidulin, V. Sh.

AU - Veselova, A. V.

AU - Aitov, V. N.

AU - Mitiani, G. Sh.

AU - Valeev, A.F.

AU - Gadelshin, D.R.

AU - Gutaev, A. G.

AU - Beskin, G. M.

AU - Valyavin, G. G.

AU - Antonyuk, K.

AU - Barkaoui, K.

AU - Gillon, M.

AU - Jehin, E.

AU - Delrez, L.

AU - Guðmundsson, S.

AU - Dale, H. A.

AU - Fernández-Lajús, E.

AU - Di Sisto, R. P.

AU - Bretton, M.

AU - Wunsche, A.

AU - Hentunen, V.-P.

AU - Shadick, S.

AU - Jongen, Y.

AU - Kang, W.

AU - Kim, T.

AU - Pakštienė, E.

AU - Qvam, J. K. T.

AU - Knight, C. R.

AU - Guerra, P.

AU - Marchini, A.

AU - Salvaggio, F.

AU - Papini, R.

AU - Evans, P.

AU - Salisbury, M.

AU - Garlitz, J.

AU - Esseiva, N.

AU - Ogmen, Y.

AU - Bosch-Cabot, P.

AU - Selezneva, A.

AU - Hinse, T. C.

PY - 2021

Y1 - 2021

N2 - We developed a dedicated statistical test for a massive detection of spot- A nd facula-crossing anomalies in multiple exoplanetary transit light curves, based on the frequentist p-value thresholding. This test was used to augment our algorithmic pipeline for transit light curves analysis. It was applied to 1598 amateur and professional transit observations of 26 targets being monitored in the EXPANSION project. We detected 109 statistically significant candidate events revealing a roughly 2 : 1 asymmetry in favor of spots-crossings over faculae-crossings. Although some candidate anomalies likely appear non-physical and originate from systematic errors, such asymmetry between negative and positive events should indicate a physical difference between the frequency of star spots and faculae. Detected spot-crossing events also reveal positive correlation between their amplitude and width, possibly due to spot size correlation. However, the frequency of all detectable crossing events appears just about a few per cent, so they cannot explain excessive transit timing noise observed for several targets.

AB - We developed a dedicated statistical test for a massive detection of spot- A nd facula-crossing anomalies in multiple exoplanetary transit light curves, based on the frequentist p-value thresholding. This test was used to augment our algorithmic pipeline for transit light curves analysis. It was applied to 1598 amateur and professional transit observations of 26 targets being monitored in the EXPANSION project. We detected 109 statistically significant candidate events revealing a roughly 2 : 1 asymmetry in favor of spots-crossings over faculae-crossings. Although some candidate anomalies likely appear non-physical and originate from systematic errors, such asymmetry between negative and positive events should indicate a physical difference between the frequency of star spots and faculae. Detected spot-crossing events also reveal positive correlation between their amplitude and width, possibly due to spot size correlation. However, the frequency of all detectable crossing events appears just about a few per cent, so they cannot explain excessive transit timing noise observed for several targets.

KW - Planetary systems-techniques: Photometric-starspots

KW - PHYSICAL-PROPERTIES

KW - HIGH-PRECISION PHOTOMETRY

KW - TIME-SERIES ANALYSIS

KW - EXTRASOLAR PLANET

KW - starspots

KW - TIMING VARIATIONS

KW - PLANETARY SYSTEM

KW - REFINED PARAMETERS

KW - Techniques: photometric

KW - HOT JUPITER

KW - TRANSMISSION SPECTRUM

KW - RADIAL-VELOCITY

KW - Planetary systems

UR - http://www.scopus.com/inward/record.url?scp=85106739833&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/960d1d2f-2b6f-3ead-9ec8-ab92811d7b48/

U2 - 10.32023/0001-5237/71.1.2

DO - 10.32023/0001-5237/71.1.2

M3 - Article

VL - 71

SP - 25

EP - 53

JO - Acta Astronomica

JF - Acta Astronomica

SN - 0001-5237

IS - 1

ER -

ID: 77018693