Conveners
Solar system and exoplanets
- Ing-Guey Jiang (National Tsing Hua University)
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Milan Sil (Institute of Astronomy, National Tsing Hua University)5/16/26, 4:15 PMOral
The binding energy and desorption pre-exponential factor are key parameters in astrophysical ice chemistry, governing gas-surface processes that ultimately yield the astrophysical observations of a wide variety of gas-phase chemical species in cold environments (e.g., prestellar cores). Without accurate values, contemporary astrochemical models are compelled to rely on wild guesses, often...
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Cheng-An Hsieh (National Taiwan University)5/16/26, 4:30 PMOral
The atmospheric dynamics of Venus's mesosphere (60–120 km) present a long-standing scientific challenge, characterized by complex interactions between meridional circulation and photochemistry. A recent, unexpected observation revealed a massive increase in the gas-phase deuterium-to-hydrogen (D/H) ratio in this layer, rising from 162 to 1,519 times Earth’s standard between 70 and 108 km in...
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Prangsutip Cherdwongsung (National Tsing Hua University)5/16/26, 4:45 PMOral
The detection of exomoons, natural satellites orbiting exoplanets, remains one of the most challenging and intriguing problems in modern astronomy. In this work, we develop a photodynamical pipeline to search for exomoon signatures using transit timing variations (TTV). By analyzing periodic shifts in transit mid-times, we aim to identify the dynamical effects induced by a potential orbiting...
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Roberto III Serrano (Rizal Technological University)5/16/26, 5:00 PMOral
A comprehensive catalog of Solar Radio bursts that is recorded from a Dual Dipole Antenna operating in Philippines at RTU Baras, specifically located the coordinates of 14°34′34.4″N, 121°15′53.3″E with a moderate elevation on the fringes of the Sierra Madre Mountain range. The antenna detects solar radio bursts between 16 MHz and 24 MHz using a calibrated software-defined radio (SDR) receiver...
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Cheng-An Hsieh (National Taiwan University)5/16/26, 5:15 PMOral
The recently discovered exoplanet WASP-193 b represents an extreme example of a “cotton candy” gas giant exoplanet, exhibiting an exceptionally low density (⍴=0.059±0.014 g·cm^-3) that current planetary evolution models cannot explain. With a Jupiter-like radius (R_p=1.464 R_{Jup}) but a mass of only 0.139 M_{Jup}, this highly irradiated planet (T_eq=1254 K) challenges our understanding of...
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Kaviya Parthasarathy (National Tsing Hua University)5/16/26, 5:30 PMOral
Transit Timing Variation (TTV) is a robust method for detecting
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non-transiting planets in multi-planetary systems, especially those near
Mean Motion Resonance (MMR). In this study, we focus on TOI-2109 b, one
of the few known exoplanets with an orbital period shorter than 1 day.
To achieve the precision necessary to detect these minute gravitational
perturbations, we integrated... -
Hsin-Min Liu (NTHU)5/16/26, 5:45 PMOral
Transit light-curve observations play important roles in the study of
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exoplanetary systems as they enable the determination of physical and
orbital parameters of exoplanets through transit timing variations
(TTVs).
The TTV method is particularly powerful for detecting additional
low-mass planets within a system. In this work, we analyze 176 light
curves, including 132 from TESS and 12...