An improved method for differential photometry

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/100760

Title:	An improved method for differential photometry
Authors:	潘彥丞;Fernández Fernández, Javier;Chou, Dean-Yi;Pan, Yen-Chen;Wang, Li-Hang
Contributors:	理學院天文研究所
Keywords:	Acoustic waves;Algorithms;Astronomy;Earth, ocean, space;Exact sciences and technology;Noise levels;Noise pollution;Noise reduction;Photometric observations;Stellar investigations;Telescopes
Date:	2012-05-01
Issue Date:	2026-04-21 14:13:16 (UTC+8)
Publisher:	Institute of Physics Publishing;Chicago, IL: University of Chicago Press
Abstract:	摘要： ABSTRACT We developed a method to improve the conventional differential photometry by using many auxiliary stars to reduce noise in the reference light curve, which is used to calibrate the light curve of the target star. The data used in this study are taken with the Taiwan Automated Telescope network. The light curves of two δ Scuti, HD 163032 and V830 Her, are shown here as examples. The results are compared with four other methods: conventional differential photometry; ensemble photometry; the method of Tamuz, Mazeh, & Zucker; and trend filtering algorithm. The light curve computed with our method is smoother than the other four methods, while preserving the pulsational signals. The mode frequencies determined from the light curve from our method also has a higher S/N and lower error in comparison with other methods. 出版者： Chicago, IL: University of Chicago Press 出版日期： 2012-05-01 出處： Publications of the Astronomical Society of the Pacific, 2012-05, Vol.124 (915), p.507-512 資源來源： JSTOR Expanded Access Collection - Arts and Sciences X 版權： 2012. The Astronomical Society of the Pacific. All rights reserved. Printed in U.S.A. 版權： 2015 INIST-CNRS 識別號： ISSN: 0004-6280 識別號： EISSN: 1538-3873 識別號： DOI: 10.1086/665926 識別號： CODEN: PASPAU
Appears in Collections:	[Graduate Institute of Astronomy] journal & Dissertation

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