I can provide you with a detailed outline of the main branches and topics within astrophysics. This outline could serve as a basis for creating a comprehensive map of the field.
I. Cosmology
A. Big Bang theory
B. Cosmic microwave background
C. Dark matter and dark energy
D. Large-scale structure of the universe
E. Cosmic inflation
F. Cosmological models
II. Galactic and Extragalactic Astronomy
A. Galaxy formation and evolution
B. Galactic structure and dynamics
C. Active galactic nuclei and quasars
D. Interstellar medium
E. Gravitational lensing
F. Galaxy clusters and superclusters
III. Stellar Astrophysics
A. Star formation and evolution
B. Main sequence stars
C. Red giants and supergiants
D. White dwarfs and neutron stars
E. Black holes
F. Stellar atmospheres and spectra
G. Stellar populations and star clusters
IV. Planetary Science and Astrobiology
A. Solar system formation and evolution
B. Terrestrial and gas giant planets
C. Moons and dwarf planets
D. Asteroids, comets, and meteors
E. Exoplanets and extrasolar systems
F. Habitability and the search for life
V. High-Energy Astrophysics
A. X-ray and gamma-ray astronomy
B. Supernovae and hypernova
C. Gamma-ray bursts
D. Pulsars and magnetars
E. Accretion disks and jets
F. Cosmic rays
VI. Observational Techniques and Instrumentation
A. Telescopes (optical, radio, infrared, X-ray, gamma-ray)
B. Interferometry and adaptive optics
C. Spectroscopy and photometry
D. Astrometry and celestial mechanics
E. Astronomical data analysis and reduction
F. Space-based observatories and missions
VII. Theoretical and Computational Astrophysics
A. Hydrodynamics and magnetohydrodynamics
B. Radiative transfer and plasma physics
C. Gravitation and general relativity
D. Numerical simulations and modeling
E. Astrophysical fluid dynamics
F. High-performance computing in astrophysics
This outline covers the main areas of astrophysics, but there are many more subtopics and interdisciplinary fields that could be included in a more comprehensive map. The relationships and interconnections between these topics would also be essential to represent in a detailed map of astrophysics.