67 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Jamia Millia IslamiaIN8 papers
- Zhejiang University of TechnologyCN7 papers
- Kazan Federal UniversityRU4 papers
- L. N. Gumilyov Eurasian National UniversityKZ3 papers
- Lomonosov Moscow State UniversityRU2 papers
- Osmania UniversityIN2 papers
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State UniversityRU2 papers
- Aligarh Muslim UniversityIN1 paper
- Asia Pacific Center for Theoretical PhysicsKR1 paper
- Astronomical Institute of the Slovak Academy of SciencesSK1 paper
- Bauman Moscow State Technical UniversityRU1 paper
- Baylor UniversityUS1 paper
20 papers
Exploring the collinear Lagrangian points of exoplanet systems with P-R drag and oblateness
Ibtisam Shaikh, Priya Hasan, S. N. Hasan
In this paper we study the location and stability of the collinear Lagrangian points for the RTBP for the case in which one of the primary bodies is radiating and the other is obla…
Deep Photometry of Suspected Gravitational Lensing Events: Potential Detection of a Cosmic String
Margarita Safonova, Igor I. Bulygin, Olga S. Sazhina +3
Cosmic strings (CS) are one-dimensional cosmological-size objects predicted in realistic models of the early Universe. Analysis of the cosmic microwave background (CMB) anisotropy…
The enhanced YSO population in Serpens
Priya Hasan, Mudasir Raja, Md Saifuddin +1
The Serpens Molecular Cloud is one of the most active sites of ongoing star formation at a distance of about 300 pc, and hence is very well-suited for studies of young low-mass sta…
The Galaxy Population of the Core of Coma Cluster
P. Nagamani, P. Hasan, S N Hasan
In this paper we present the structural properties and morphology of galaxies in the central region of the Coma Cluster brighter than in the band. from the HST/ACS…
Astronomy Data, Virtual Observatory and Education
Priya Hasan, S N Hasan
We shall present with examples how analysis of astronomy data can be used for an educational purpose to train students in methods of data analysis, statistics, programming skills a…
Astronomy Education in Covid Times
Priya Hasan, S N Hasan
We shall describe the various activities done by us in Covid Times including outreach and educational workshops in Physics and Astronomy. We shall discuss the caveats in virtual te…
Membership of Stars in Open Clusters using Random Forest with Gaia Data
Md Mahmudunnobe, Priya Hasan, Mudasir Raja +1
Membership of stars in open clusters is one of the most crucial parameters in studies of star clusters. Gaia opened a new window in the estimation of membership because of its unpr…
Inflation with a quartic potential in the framework of Einstein-Gauss-Bonnet gravity
Ekaterina O. Pozdeeva, Mayukh Raj Gangopadhyay, Mohammad Sami +2
We investigate inflationary dynamics in the framework of the Einstein-Gauss-Bonnet gravity. In the model under consideration, the inflaton field is non-minimally coupled to the Gau…
Modified Theory of Gravity and Clustering of Multi-Component System of Galaxies
Mir Hameeda, Behnam Pourhassan, Mir Faizal +3
In this paper, we analyze the clustering of galaxies using a modified theory of gravity, in which the field content of general relativity has been be increased. This increasing in…
Baryogenesis in the paradigm of quintessential inflation
Safia Ahmad, Antonio De Felice, Nur Jaman +2
We explore the possibility of baryogenesis in the framework of quintessential inflation. We focus on the model independent features of the underlying paradigm and demonstrate that…
Stability analysis of de Sitter solutions in models with the Gauss-Bonnet term
Ekaterina O. Pozdeeva, Mohammad Sami, Alexey V. Toporensky +1
We investigate the scalar field dynamics of models with nonminimally coupled scalar fields in the presence of the Gauss-Bonnet term and derive the structure of the effective potent…
Superpotential method for chiral cosmological models connected with modified gravity
S. V. Chervon, I. V. Fomin, E. O. Pozdeeva +2
We consider the Chiral Cosmological Models (CCMs) and modified gravity theories associated with them. Generalization of the superpotential method for a general CCM with several sca…
Semiconformal symmetry- A new symmetry of the spacetime manifold of the general relativity
Musavvir Ali, Naeem Ahmad Pundeer, Zafar Ahsan
In this paper we have introduced a new symmetry property of spacetime which is named as semiconformal curvature collineation, and its relationship with other known symmetry propert…
Emergence of cosmological scaling behavior in asymptotic regime
M. A. Skugoreva, M. Sami, N. Jaman
In this paper we consider a scalar field system with a class of potentials given by the expression, ; for which $…
Standardization in the UV with Astrosat and its issues related to star cluster studies
Priya Shah
The Ultra-Violet Imaging Telescope (UVIT) is one of the payloads in Astrosat, the first Indian Space Observatory. The UVIT instrument has two 375 mm telescopes: one for the far-ult…
Dwarf Galaxies in the Core of Coma Cluster
S N Hasan, Priya Shah, P Nagamani
Dwarf galaxies constitute 18\% of the galaxies in the core of the Coma Cluster. We present the correlation between structural properties and morphology of galaxies in the central r…
Bigravity and Horndeski gravity connected by a disformal coupling
Radouane Gannouji, Md. Wali Hossain, Nur Jaman +1
In this paper, we have studied bi-gravity theory in a very specific limit where we focused only on one degree of freedom generated by the massive graviton. We have analyzed the mod…
The photometric study of the non-relaxed cluster "Mayer 3"
A. L. Tadross, R. Bendary, P. Hasan
The astrophysical parameters of the open star cluster Mayer 3 have been estimated using the Newtonian focus (f/4.84) of the 1.88 m Telescope of Kottamia Observatory in Egypt. The V…
Cosmic acceleration sourced by modification of gravity without extra degrees of freedom
Abhineet Agarwal, R. Myrzakulov, S. K. J. Pacif +2
In this paper, we investigate a scenario in which late time cosmic acceleration might arise due to coupling between dark matter and baryonic matter without resorting to dark energy…
Relic gravitational waves from Quintessential Inflation
Safia Ahmad, R. Myrzakulov, M. Sami
We study relic gravitational waves in the paradigm of quintessential inflation. In this framework, irrespective of the underlying model, inflation is followed by the kinetic regime…