Exploring the Universe's Extreme Events: Galactic Transients at High and Very High Energies

Transient phenomena in the Milky Way emit radiation across the electromagnetic spectrum and are essential for understanding the extreme astrophysical processes that occur in our galaxy.At high and very high energies (HE and VHE), these events can provide valuable insights into the acceleration mechanisms of particles, the interstellar medium, and the astrophysical processes driving these phenomena.Recent observations from -ray telescopes like Fermi-LAT, H.E.S.S., MAGIC, and VERITAS have led to the detection and characterization of various types of HE and VHE transients, such as supernova remnants, pulsar wind nebulae, microquasars, and binary systems.VHE -ray telescopes, like Cherenkov telescopes, have enabled the detection of rays at higher energies than previously possible, revealing a wealth of transient phenomena.Theoretical models of HE and VHE transients have evolved to incorporate the latest observations and insights.These models include the study of particle acceleration and transport, magnetic field amplification, and radiation mechanisms.Multi-wavelength and multi-messenger observations, including X-rays, radio waves, and neutrinos, are also providing complementary information that helps in the understanding of these phenomena.In this proceeding, I present recent advancements in the study of HE and VHE transients in the Milky Way and highlighting their importance in the context of high-energy astrophysics.The study of these phenomena promises to deepen our understanding of the universe's most extreme environments.