Perumusan Kovarian Gravitasi Teleparalel Untuk Ruang-Waktu Vaidya yang Diperumum
HERGAMMA RAMADHANI PRAMONO PUTRO, Dr.rer.nat. Muhammad Farchani Rosyid, M.Si
2024 | Skripsi | FISIKA
Solusi Vaidya beserta perumumannya merupakan perluasan tak statis bagi
solusi Schwarzschild. Solusi Vaidya memiliki banyak terapan dalam bidang
astrofisika dan kajian teoretis. Namun, hingga saat ini belum ditemukan
perumusan kovarian gravitasi teleparalel untuk ruang-waktu Vaidya dalam
literatur. Dalam penelitian ini, telah dilakukan perumusan kovarian gravitasi
teleparalel untuk ruang-waktu Vaidya. Tetrad terkait ruang-waktu Vaidya yang
diperumum telah diperoleh. Tetrad referensi dan potensial tera gravitasi terkait
tetrad yang diperoleh telah diidentifikasi. Koneksi Spin telah didapat serta
efek inersia pada kerangka terkait telah diidentifikasi. Torsi, kontorsi, dan
superpotensial serta efek gravitasi dalam kerangka terkait juga telah
diperoleh.
Vaidya's solution and its generalization are non-static extensions of
Schwarzschild's solution. Vaidya's solution has numerous applications in
astrophysics and theoretical studies. However, no covariant formulation of
teleparallel gravity for Vaidya spacetime has been found in the literature. In
this study, a covariant teleparallel gravity formulation of generalized Vaidya
spacetime has been developed. A tetrad associated with Vaidya spacetime has
been determined. The reference tetrad and gravitational gauge potential
corresponding to the obtained tetrad have been calculated. The associated spin
connection has been obtained, and the inertial effects of the corresponding
frame have been identified. The torsion, contortion, and superpotential
associated to the obtained tetrad have been calculated, and the gravitational
effects in the corresponding frame have been identified.
Kata Kunci : solusi Vaidya, gravitasi teleparalel, perumusan kovarian