Research
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2023.12.21
Probing Planet Formation with the Most Extreme Cases
Thousands of exoplanets have been discovered in the past ~30 years. However, there are still major gaps of knowledge in our understanding of planet formation. The most extreme exoplanets are often ideal for identifying, isolating, and investigating critical aspects of plant formation. In this talk, I will highlight three extremes of planet formation: 1) the ultra-short-period planets (
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2023.12.19
A New AGN Photoionization Model and Multi-wavelength Metallicity Diagnostics
The photoionization model of narrow-line regions (NLRs) in active galactic nuclei (AGNs) has been investigated for decades. Many published models are restricted to simple linear scaling abundance relations, dust-free assumption, uniform AGN radiation field, and using one specific photoionization code, which restricts them from providing a satisfactory prediction on a broad range of AGN observa...
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2023.12.18
Electromagnetic fireworks from erupting magnetars
Highly magnetized neutron stars are a source of extreme transients observed in different bands, like the fast radio burst (FRB) and associated hard X-ray burst from the Galactic magnetar SGR 1935+2154. The origin of such outbursts, hard X-rays on the one hand and millisecond duration FRBs on the other hand, is still unknown. We present a global model for various kinds of such magnetar outbursti...
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2023.12.18
Probing Parity with Galaxy Distributions and Beyond
Galaxies' four-point correlation functions provide insights into parity symmetry at cosmological scales. In this talk, I will present our data analysis on the BOSS galaxy sample with a focus on various observational effects. I will also discuss some future aspects of extending the analysis, including models and connection with other observables. In addition, I will also discuss an alternative i...
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2023.12.15
Bridging the gap between luminous red novae and common envelope evolution with radiation hydrodynamic models
Luminous red novae (LRNe) are relatively new transients that have the luminosity between classic novae and supernovae, initially classified as "gap transients". Even though many more "gap transients" have been observed by telescopes such as ZTF and Keck, their origin and physical processes remain mysterious. To initiate the study of the nature of LRNe, I built a 1D and 2D radiation hydrodynamic...
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