u/LK_111

Source: https://arxiv.org/abs/2604.27133

• Here, Radiative Transfer explains how light changes as it moves through gas, dust, and ice around a protostar.
• Researchers calculated the freeze-out temperature at which a gas molecule will stick to dust grains as ice or evaporate back into gas in a space. They utilized the Beer-Lambert Law to derive the optical depth of ice species. They used the column density ratio to estimate the relative abundance of different ices from the observed absorption. Here the amount of CO₂ ice relative to water ice is much higher than previously estimated.

Source: https://arxiv.org/abs/2604.28135

• Here, Ledoux Luminosity is the maximum heat flux that can be transported through the planet's interior by radiation alone before convection is triggered within a chemically layered or mixed region. Guillot Temperature Profile is Calculated, it is the temperature at various optical depths, balancing internal heat with stellar irradiation. Atmospheric Retention Criterion: Sets the minimum gravitational potential required at the radiative-convective boundary to prevent the atmosphere from spontaneously boiling off.

Source: https://arxiv.org/html/2604.27842v1

• Here, stars' theoretical oscillation frequencies are computed from stellar parameters then compared to observed frequencies by minimizing a chi-square function. Surface-Independent Frequency Ratios are calculated here.
• Inverse method is based on the linear relation between frequency differences and internal structure changes which indicates how quantities like density and sound speed affect oscillations. A key physical principle used is-the large oscillation frequency separation is proportional to square root of mean density.

Source: https://arxiv.org/html/2604.22685v1

• CosmicDancePro is main simulation and analysis framework developed by the researchers, it combines different data sources to study both satellite motion and network performance.
• NRLMSISE-00 is an atmospheric model that estimates the density and temperature of Earth’s upper atmosphere, which calculates drag during solar storms. Two-Line Element is a standard data format that provides the orbital parameters of satellites (like position and velocity), allowing researchers to track their motion over time.

• Source: Https://arxiv.org/html/2604.20203v1
• Researchers calculated radius valley, an observed, narrow gap in the size distribution, it separates two distinct populations: rocky super-Earths and sub-Neptunes. Probability Density Function of the Beta Distribution is also calculated here.

Here, researchers utilized the Zonal Wind Equation to relate atmospheric velocity profiles to the geopotential surface, calculating the 1-bar isobaric radius as a function of the planet's rotation rate.

Source: https://arxiv.org/html/2604.19863v1