4 papers
The Pre-He White Dwarfs in Eclipsing Binaries. V. TIC 399725538
Jae Woo Lee, Kyeongsoo Hong, Min-Ji Jeong +2
We present echelle spectra of TIC 399725538 obtained in Korea and Thailand to investigate the physical properties and evolutionary scenarios of EL CVn-type binaries. The time-serie…
TIC 322208686: An Eclipsing System with Doradus Pulsations and a Third Component on a Wider Orbit
Jae Woo Lee, Kyeongsoo Hong, Min-Ji Jeong +3
TIC 322208686 is known to be a detached binary that exhibits two types of variability: pulsation and eclipse. We present the physical properties of the target star using the short-…
Identification of Likely Methane Absorption Features in the Optical Spectra of Titan
Sirinrat Sithajan, Lalita Kaewbiang, Hugh R. A. Jones +2
The optical spectra of Titan reveal a rich set of absorption features, most of which are likely associated with methane (CH). Methane is a key molecule in planetary and exoplan…
Characterisation of H spectra from EXO 051910+3737.7 X-rays binaries
Pornisara Nuchvanichakul, Puji Irawati, Pakakaew Rittipruk +4
We investigate the spectral characteristics of the Be/X-ray binary system, EXO 051910+3737.7, in which Be/X-ray systems are the largest sub-class of high-mass X-ray binaries. Spect…