38 citations · 166 across the 9 of their papers we have counts for
9 papers
Palomar Transient Factory and RR Lyrae: Metallicity-Light Curve Relation Based on ab-Type RR Lyrae in Kepler Field
Chow-Choong Ngeow, Po-Chieh Yu, Eric Bellm +6
The wide-field synoptic sky surveys, known as the Palomar Transient Factory (PTF) and the intermediate Palomar Transient Factory (iPTF), will accumulate a large number of known and…
Orbital and Spin Parameter Variations of Partial Eclipsing Low Mass X-ray Binary X 1822-371
Yi Chou, Hung-En Hsieh, Chin-Ping Hu +2
We report our measurements for orbital and spin parameters of X 1822-371 using its X-ray partial eclipsing profile and pulsar timing from data collected by the Rossi X-ray Timing E…
Discovery of an X-ray Emitting Contact Binary System 2MASS J112010342201340
Chin-Ping Hu, Ting-Chang Yang, Yi Chou +10
We report the detection of orbital modulation, a model solution, and X-ray properties of a newly discovered contact binary, 2MASS J112010342201340. We serendipitously found this…
Characterizing Intermittency of 4-Hz Quasi-periodic Oscillation in XTE J1550-564 using Hilbert-Huang Transform
Yi-Hao Su, Yi Chou, Chin-Ping Hu +1
We present the time-frequency analysis results based on the Hilbert-Huang transform (HHT) for the evolution of a 4-Hz low-frequency quasi-periodic oscillation (LFQPO) around the bl…
Asteroid Spin-Rate Study using the Intermediate Palomar Transient Factory
Chan-Kao Chang, Wing-Huen Ip, Hsing-Wen Lin +10
Two dedicated asteroid rotation-period surveys have been carried out using data taken on January 6-9 and February 20-23 of 2014 by the Intermediate Palomar Transient Factory (iPTF)…
313 new asteroid rotation periods from Palomar Transient Factory observations
Chan-Kao Chang, Wing-Huen Ip, Hsing-Wen Lin +11
A new asteroid rotation period survey have been carried out by using the Palomar Transient Factory (PTF). Twelve consecutive PTF fields, which covered an area of 87 deg in the…
Tracking the Evolution of QPO in RE J1034+396 Using the Hilbert-Huang Transform
Chin-Ping Hu, Yi Chou, Ting-Chang Yang +1
RE J1034+396, a narrow-line Seyfert-1 active galactic nucleus (AGN), is the first example of AGNs that exhibited a nearly coherent quasi-periodic oscillation (QPO) for the data col…
Superorbital Phase-Resolved Analysis of SMC X-1
Chin-Ping Hu, Yi Chou, Ting-Chang Yang +1
The high-mass X-ray binary SMC X-1 is an eclipsing binary with an orbital period of 3.89 d. This system exhibits a superorbital modulation with a period varying between ~40 d and ~…
Time-Frequency Analysis of Superorbital Modulation of X-ray Binary SMC X-1 by Hilbert-Huang Transform
Chin-Ping Hu, Yi Chou, Ming-Chya Wu +2
The high-mass X-ray binary (HMXB) SMC X-1 exhibits a superorbital modulation with a dramatically varying period ranging between ~40 d and ~60 d. This research studies the time-freq…