Yes, an astrophysicist is generally considered a type or subfield of physicist by other physicists. Astrophysics is a branch of physics that deals with the study of celestial objects, such as stars, galaxies, and the universe as a whole, using the principles and methods of physics. Astrophysicists apply the laws of physics to understand the nature and behavior of astronomical phenomena. They study topics such as the formation and evolution of stars and galaxies, the properties of black holes, the nature of dark matter and dark energy, and the origins of the universe.
While astrophysics focuses on celestial objects and phenomena, it is still grounded in the fundamental principles and concepts of physics. As such, astrophysicists are considered part of the broader physicist community and often collaborate and communicate with physicists in other subfields, such as particle physics, condensed matter physics, or quantum physics. However, due to the specialized nature of their work, astrophysicists often have a deep understanding of astrophysical phenomena and specialized observational or computational techniques that distinguish them within the broader physics community.