Focus
Astrophysics, Planetary Science, Exoplanet Research
Motivation
Habitability, Sustainability of Life, Stellar-Planet Interaction
About the project
This research investigates how the characteristics of different types of stars—G-, K-, and M-type—affect the potential habitability of planets orbiting them. By analyzing stellar properties such as luminosity, radiation, and temperature, the study examines how these variables shape the conditions necessary for liquid water and, by extension, life to exist. Using comparative case studies of well-known exoplanets such as Proxima Centauri b, TRAPPIST-1e, Kepler-186f, LHS 1140 b, and GJ 1214 b, the research employs a data-driven approach grounded in astronomical modeling, stellar classification, and bar graph analysis derived from NASA’s Exoplanet Archive and supporting astrophysical literature.
The findings reveal that stellar type significantly influences planetary environments through radiation intensity, flare activity, and habitable zone width. M-dwarfs, for example, are abundant and host many rocky planets but often exhibit intense flare activity that can erode planetary atmospheres. G-type stars, like our Sun, offer broader habitable zones but are less numerous. K-type stars emerge as an intermediate category, with favorable luminosity and stability conditions that make them promising candidates for hosting life. The research highlights that habitability is not solely dependent on distance from the star but results from a complex interaction between stellar luminosity, orbital radius, radiation output, and atmospheric retention.
Ultimately, this paper underscores the delicate balance between stellar behavior and planetary resilience in sustaining habitable conditions. It points to the need for refining exoplanet habitability models to incorporate magnetic fields, planetary composition, and atmospheric chemistry. By doing so, future studies can better identify the most promising systems for the search for extraterrestrial life and deepen humanity’s understanding of where habitable worlds are most likely to exist across the galaxy.
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