59 citations · 182 across the 9 of their papers we have counts for
9 papers
Evading the CMB -distortion bound on Supermassive Primordial Black Hole seeds with Non-Gaussian tails
Sanket Dave, Sheng-Feng Yan, Amara Ilyas +1
Supermassive black holes (SMBHs) powering quasars at are difficult to grow from stellar mass remnants, motivating seeds from primordial black holes (PBHs) with masses…
Sound Speed Resonance in the Gravitational Wave Background as a probe for non-standard early universe cosmologies
Igor de O. C. Pedreira, Amara Ilyas, Ziwei Wang +2
Gravitational waves constitute a powerful probe of the underlying theory of gravity. In extensions of general relativity, additional degrees of freedom, such as scalar fields in th…
A Compaction Function Analysis of CMB distortion Constraints on Primordial Black Holes
Junyue Yang, Xiaoding Wang, Xiao-Han Ma +4
Primordial black holes (PBHs) are considered viable candidates for dark matter and the seeds of supermassive black holes (SMBHs), with their fruitful physical influences providing…
Ultra-light dark matter with non-canonical kinetics reopening the mass window
Shiyun Lu, Amara Ilyas, Xiao-Han Ma +3
Fuzzy dark matter (FDM) with mass around eV is viewed as a promising paradigm in understanding the structure formation of the local universe at small scales. Recent obse…
Quasinormal modes of black holes in f(T) gravity
Yaqi Zhao, Xin Ren, Amara Ilyas +2
We calculate the quasinormal modes (QNM) frequencies of a test massless scalar field and an electromagnetic field around static black holes in gravity. Focusing on quadratic…
Scalar and Tensor Perturbations in DHOST Bounce Cosmology
Mian Zhu, Amara Ilyas, Yunlong Zheng +2
We investigate the bounce realization in the framework of DHOST cosmology, focusing on the relation with observables. We perform a detailed analysis of the scalar and tensor pertur…
Emergent Universe and Genesis from the DHOST Cosmology
Amara Ilyas, Mian Zhu, Yunlong Zheng +1
In this article, we present an emergent universe scenario that can be derived from DHOST cosmology. The universe starts asymptotically Minkowski in the far past just like the regul…
Warm Modified Chaplygin Gas Shaft Inflation
Abdul Jawad, Amara Ilyas, Shamaila Rani
In this paper, we examine the possible realization of a new family of inflation called "shaft inflation" by assuming the modified Chaplygin gas model and tachyon scalar field. We a…
Dynamics of Modified Chaplygin Gas Inflation on the Brane with Bulk Viscous Pressure
Abdul Jawad, Amara Ilyas, Shamaila Rani
We investigate the role of bulk viscous pressure on the warm inflationary modified Chaplygin gas in brane-world framework in the presence of standard scalar field. We assume the in…