Astrophysics & Particle Physics-APPC 2026

Stellar remnants are the compact, dense bodies that remain after a star has finished evolving. The remnant created depends largely on the star's initial mass and evolutionary path. These remains—white dwarfs, neutron stars, and black holes—are paramount to understanding stellar evolution, high-energy astrophysics, and galactic dynamics.Stellar remains also regularly engage with their surroundings, creating effects like pulsar wind nebulae, supernova remnants, X-ray binaries, and gravitational wave phenomena.

Studying these remnants informs about stellar demise, compact object physics, and the enrichment of the interstellar medium. Contemporary astrophysics investigates stellar remnants with multi-wavelength observations ranging from radio to gamma rays, and gravitational wave observations of neutron star and black hole mergers. These observations serve to constrain dense matter, stellar collapse, and high-energy process models.In conclusion, stellar remnants are the late stages of stellar evolution, from white dwarfs to neutron stars and black holes. Their research is essential to the understanding of stellar life cycles, extreme physics, and galaxy evolution.