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All Journal Jurnal Pengabdian Magister Pendidikan IPA Jurnal Pensil : Pendidikan Teknik Sipil Performance Jurnal Kridatama Sains dan Teknologi Teknosains : Jurnal Sains,Teknologi dan Informatika Indonesian Journal of Physics (IJP) Eduvest - Journal of Universal Studies Jurnal Pengabdian Bisnis dan Akuntansi Soedirman Jurnal Ekonomi, Bisnis, dan Akuntansi JCSE: Journal of Community Service and Empowerment International Journal of Mechanical, Electrical and Civil Engineering
Agus Suroso
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Neuroscience Social Sciences Other

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Journal : Indonesian Journal of Physics (IJP)

 1 
Thin-shell Solution of Chameleon Mechanism in Brans-Dicke Scalar-Tensor Model Azwar Sutiono; Agustina Widiyani; Marliana Marliana; Getbogi Hikmawan; Agus Suroso; Freddy Permana Zen
Indonesian Journal of Physics Vol 33 No 1 (2022): Vol 33 No 1 (2022)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (277.95 KB) | DOI: 10.5614/itb.ijp.2022.33.1.1

Abstract

We investigated the chameleon screening mechanism in Brans-Dicke scalar-tensor theory. We preserved the fundamental premise of the typical chameleon mechanism, which is that the field is huge in high-density environments but essentially free in low-density environments like the solar system. We discovered thin-shell solutions for a static and spherical symmetric body and demonstrated the model’s applicability to local data.
Gravitational Wave Propagation for The Generalized Proca Theories marliana lutan; Agustina Widiyani; Azwar Sutiono; Getbogi Hikmawan; Agus Suroso; Freddy Permana Zen
Indonesian Journal of Physics Vol 33 No 1 (2022): Vol 33 No 1 (2022)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (177.093 KB) | DOI: 10.5614/itb.ijp.2022.33.1.7

Abstract

In general relativity, a gravitational wave propagates with the speed of light, but inthe alternative theories of gravity, propagation speed could deviate from the speed of lightdue to the modification of gravity. Gravitational waves are influenced by modified gravityduring propagation at the cosmological distance. In this paper, we investigate thepropagation of a gravitational wave of the generalized Proca theories by consideringgravitational wave as the gravitational field propagates in spacetime as a wave perturbing flatspacetime. We show that the arbitrary functions G3, G4, and G5 can be the sources ofdeviation of the speed of the gravitational wave.
Co-Authors Ade Banani Ali Sunandar Anugrah Putra, Tommy Ascaryan Rafinda Bambang Hari Kusumo Dahlan Hidayat Eko Pradjoko Eliada Herwiyanti Freddy Permana Zen Getbogi Hikmawan Gyan Agye Try Krystyan Haidar Khoirul Amin I Dewa Gede Jaya Negara I Gusti Made Kusnarta Isnaniar Rahmatul Azizah Kristiana, Retna Lalu Arifin Aria Bakti Lantip Rujito marliana lutan Marliana Marliana Mawardi Amin Najmi Nurgitasari Negina Kencono Putri Novika Candra Fertilia Nurrachman oryz agnu dian wulandari Rahayu, Ety Resi Aseanto Rizki Rijatullah Sediyanto Setyanto, Refius Pradipta Sukartono Sutiono, Azwar Suwardji Widiyani, Agustina Yordan Hermawan Apidana