The Taiwan-American occultation survey project stellar variability. I : Detection of low-amplitude δ Scuti stars
We analyzed data accumulated during 2005 and 2006 by the Taiwan-American Occultation Survey (TAOS) in order to detect short-period variable stars (periods of ≲1 hr) such as δ Scuti. TAOS is designed for the detection of stellar occultation by small-size Kuiper Belt Objects and is operating four 50 cm telescopes at an effective cadence of 5 Hz. The four telescopes simultaneously monitor the same patch of the sky in order to reduce false positives. To detect short-period variables, we used the fast Fourier transform algorithm (FFT) in as much as the data points in TAOS light curves are evenly spaced. Using FFT, we found 41 short-period variables with amplitudes smaller than a few hundredths of a magnitude and periods of about an hour, which suggest that they are low-amplitude δ Scuti stars. The light curves of TAOS δ Scuti stars are accessible online at the Time Series Center Web site (http://timemachine.iic.harvard.edu).
Item Type | Article |
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Date Deposited | 26 Jul 2024 11:36 |
Last Modified | 26 Jul 2024 11:36 |
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Read more research from the creator(s):
- Kim, D. -W.
- Protopapas, P.
- Alcock, C.
- Wright, N.J.
- Bianco, F.B.
- Lehner, M.J.
- Dave, R.
- Byun, Y.-I.
- Kyeong, J.
- Lee, B.-C.
- Axelrod, T.
- Chen, W.-P.
- Lin, H.-C.
- Wang, J.-H.
- Zhang, Z.-W.
- Coehlo, N.K.
- Rice, J.A.
- Cook, K.H.
- Marshall, S.L.
- King, S.-K.
- Lee, T.
- Wang, S.-Y.
- Wen, C.-Y.
- Porrata, R.
- Schwamb, M.E.
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