A Detection Threshold in the Amplitude Spectra Calculated from TESS Time-Series Data

• Autorzy: Baran A. S. , Koen C.

Identyfikatory

DOI

10.32023/0001-5237/71.2.3

• Języki publikacji: EN

Abstrakty

EN

We present results of time-series data simulation. We aimed at estimating the threshold used for detecting signals in amplitude spectra, calculated from simulating TESS photometry of up to one year duration. We selected the threshold at a false alarm probability FAP=0.1% and derived S/N ratios between 4.6 and 5.7 depending on the data cadence and coverage. We also provide a formula to estimate the threshold for any FAP adopted and a given number of data points. Our result confirms that, to avoid spurious detection, space-based photometry may require substantially higher S/N than that typically being employed for ground-based data.

Słowa kluczowe

EN

stars: variables: general; techniques: photometric; methods: data analysis

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2021
• Tom: Vol. 71, No. 2
• Strony: 113--121
• Opis fizyczny: Bibliogr. 11 poz., tab., wykr.

Twórcy

autor

Baran A. S.

• ARDASTELLA Research Group, Institute of Physics, Pedagogical University of Cracow, ul. Podchorążych 2, 30-084 Kraków, Poland
• Embry-Riddle Aeronautical University, Department of Physical Science, Daytona Beach, FL 32114, USA
• Department of Physics, Astronomy, and Materials Science, Missouri State University, Springfield, MO 65897, USA

autor

Koen C.

• Department of Statistics, University of the Western Cape, Bellville 7535, Cape Town, South Africa

Bibliografia

• Baran, A., Koen, C., and Pokrzywka, B. 2015, MNRAS, 448, L16.
• Benjamini, Y., and Hochberg, Y. 1995, Journal of the Royal Statistical Society B, 57, 289.
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• Frescura, F.A.M., Engelbrecht, C.A., and Frank, B.S. 2008, MNRAS, 388, 1693.
• Koen, C. 2010, Astrophys. and Space Sci., 329, 267.
• Koen, C. 2015, MNRAS, 449, 1098.
• Koen, C. 2021, AJ, 161, 281.
• McNamara, D.H. 2000, ASP Conference Series, 210, 373.
• Press, W.H., Teukolsky, S.A., Vetterling,W.T., and Flannery, B.P. 2007, in: “Numerical Recipes, The Art of Scientific Computing”. 3rd Edition. Cambridge University Press, Cambridge.
• Ricker, G.R., Winn, J.N., Vanderspek, R., et al. 2015, Journal of Astronomical Telescopes, Instruments and Systems, 1, 014003.
• Stoica, P., and Moses, R. 2005, “Spectral Analysis of Signals”, Prentice Hall, Upper Saddle River, USA.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)