Astronomy and Astrophysics Course Textbook and Research Reference Text Corpus TEXTBOOK_ASTRO_001_v1 false Academic Course Textbooks and Research Reference Texts English 37 titles 2014-2022 Third Party Vendor astronomy; astrophysics XML; PDF; jpg A corpus of 37 titles including course‑level textbooks, research references, and broad‑interest works in astronomy and astrophysics | Includes materials spanning cosmology, stellar and galactic physics, and gravitational theory | Publication years covered: 2014–2022