output
19982026
most citedGravitational Lensing by Wormholes

246 citations

Showing 2024Show all

6 papers · 1 filter

astro-ph.HE2024

A new basic air shower observable sensitive to the cosmic-ray elemental mass

Animesh Basak, Rajat K. Dey

Based on a Monte Carlo simulation study of vertical extensive air showers (EAS) at the KASCADE location we introduce a new simple observable (in short ) - th…

gr-qc2024

Phase space analysis and cosmography of a two-fluid cosmological model

Goutam Mandal, Sujay Kr. Biswas

In the framework of spatially flat Friedmann-Lemaitre-Robertson-Walker (FLRW) space-time, we investigate a two-fluid cosmological model where a tachyon scalar field with self-inter…

gr-qc2024★ 8 cited

Interacting Holographic dark energy with matter creation: A dynamical system analysis

Goutam Mandal, Santosh Biswas, Sujay Kr. Biswas

An interacting Holographic dark energy (HDE) with different infra-red (IR) cutoffs (Hubble horizon and future event horizon) is investigated in the background dynamics of flat Frie…

gr-qc2024★ 1 cited

Interacting tachyon with varying mass dark matter

Goutam Mandal, Sudip Mishra, Abdulla Al Mamon +1

This paper presents an investigation of cosmological dynamics of tachyon fluid coupled to varyingmass dark matter particles in the background of spatially flat FLRW universe. The m…

gr-qc2024★ 4 cited

Dynamical systems analysis of a cosmological model with interacting Umami Chaplygin fluid in adiabatic particle creation mechanism: Some bouncing features

Goutam Mandal, Sujay Kr. Biswas

The present work aims to investigate an interacting Umami Chaplygin gas in the background dynamics of a spatially flat Friedmann-Lemaitre-Robertson-Walker (FLRW) universe when adia…

astro-ph.HE2024★ 5 cited

The ongoing spin-down episode of 4U 1626-67

Mohammed Tobrej, Ruchi Tamang, Binay Rai +2

We report the X-ray characteristics of the persistent X-ray pulsar 4U 1626-67 using simultaneous NuSTAR and NICER observations. The X-ray pulsar 4U 1626-67 has just encountered a t…