47 citations · 124 across the 9 of their papers we have counts for
10 papers
Viable massive gravity without nonlinear screening
Yusuke Manita, Sirachak Panpanich, Rampei Kimura
We study nonlinear effects of perturbations around a cosmological background in projected massive gravity, which admits self-accelerating solutions in an open FLRW universe. Using…
Cosmology in theories with spontaneous scalarization of neutron stars
Ratchaphat Nakarachinda, Sirachak Panpanich, Shinji Tsujikawa +1
In a model of spontaneous scalarization of neutron stars proposed by Damour and Esposite-Farese, a general relativistic branch becomes unstable to trigger tachyonic growth of a sca…
Cuscuta-Galileon cosmology: Dynamics, gravitational "constant"s and the Hubble Constant
Kei-ichi Maeda, Sirachak Panpanich
We discuss cosmology based on a Cuscuta-Galileon gravity theory, which preserves just two degrees of freedom. Although there exists no additional degrees of freedom, introduction o…
Cosmological Dynamics of Cuscuta-Galileon Gravity
Sirachak Panpanich, Kei-ichi Maeda
We study cosmological dynamics of the cuscuta-galileon gravity with a potential term by using the dynamical system approach. This model is galileon generalization of the cuscuton g…
Resolving Hubble Tension with Quintom Dark Energy Model
Sirachak Panpanich, Piyabut Burikham, Supakchai Ponglertsakul +1
Recent low-redshift observations give value of the present-time Hubble parameter , roughly 10\% higher than the predicted value $H_{0}=6…
Particle motions and Gravitational Lensing in de Rham-Gabadadze-Tolley Massive Gravity Theory
Sirachak Panpanich, Supakchai Ponglertsakul, Lunchakorn Tannukij
We investigate gravitational lensing and particle motions around non-asymptotically flat black hole spacetime in non-linear, ghost-free massive gravity theory, called de Rham-Gabad…
Cosmological Dynamics and Double Screening of DBI Galileon Gravity
Sirachak Panpanich, Supakchai Ponglertsakul, Kei-ichi Maeda
We investigate cosmological dynamics and screening mechanism of the Dirac-Born-Infeld (DBI) Galileon model. The model has been divided into two regimes, one has positive signs in f…
Fitting rotation curve of galaxies by de Rham-Gabadadze-Tolley massive gravity
Sirachak Panpanich, Piyabut Burikham
We investigate effects of massive graviton on the rotation curves of the Milky Way, spiral galaxies and Low Surface Brightness~(LSB) galaxies. Using a simple de Rham, Gabadadze, an…
Cosmological Dynamics of D-BIonic and DBI Scalar Field and Coincidence Problem of Dark Energy
Sirachak Panpanich, Kei-ichi Maeda, Shuntaro Mizuno
We study the cosmological dynamics of D-BIonic and DBI scalar field, which is coupled to matter fluid. For the exponential potential and the exponential couplings, we find a new an…
Effects of Chameleon Scalar Field on Rotation Curves of the Galaxies
Piyabut Burikham, Sirachak Panpanich
We investigate the effects of chameleon scalar field to the effective density and pressure of a dark matter halo. The pressure is generated from the chameleonic fifth force on the…