29 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Midnapore City CollegeIN11 papers
- City CollegeUS4 papers
- Indian Centre for Space PhysicsIN3 papers
- Leiden UniversityNL3 papers
- Amity UniversityIN2 papers
- Astronomical Observatory of RomeIT2 papers
- Center for Excellence in Basic SciencesIN2 papers
- Indian Institute of Science Education and Research, BhopalIN2 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di CagliariIT2 papers
- Jadavpur UniversityIN2 papers
- Mahidol UniversityTH2 papers
- Montana State UniversityUS2 papers
42 papers
Hypersurface Anchored Variational Principle for General Relativity
Prasanta Sahoo
A hypersurface anchored variational extension of General Relativity is formulated in which the Einstein-Hilbert action is supplemented by a diffeomorphism invariant functional supp…
RAD@home discovery of a bow-and-arrow radio galaxy tracing a ~560 kpc bow-shock structure in a multi-halo environment
Ananda Hota, Pratik Dabhade, Shubhrangshu Ghosh +9
We report the RAD@home citizen science discovery of a unique bow-and-arrow-shaped radio galaxy (BAARG; RAD J104501.6+352852, z = 0.159) identified in LoTSS DR2. The source exhibits…
Organic Acid Chemistry in ISM: Detection of Formic Acid and its Prebiotic Chemistry in Hot Core G358.930.03 MM1
Arijit Manna, Sabyasachi Pal, Sekhar Sinha +1
In the interstellar medium, formic acid (HCOOH) plays a significant role in the synthesis of the simplest amino acid, glycine (NHCHCOOH). The presence of HCOOH suggests…
Probing AGN duty cycle and cluster-driven morphology in a giant episodic radio galaxy
Shobha Kumari, Sabyasachi Pal, Surajit Paul +1
The evolution of radio jet morphology and its energetics is significantly influenced by the environment in which the host galaxy resides. As giant radio galaxies (GRGs) often exten…
Quintom Dark Energy: Future Attractor and Phantom Crossing in Light of DESI DR2 Observation
Phusuda Thanankullaphong, Prasanta Sahoo, Prajwal Hassan Puttasiddappa +1
We study the late-time cosmological dynamics of a two-field dark energy model consisting of a canonical quintessence scalar field and a phantom scalar field in a spatially flat FLR…
A New Catalog of Head Tail Radio Galaxies from the VLA FIRST Survey
Tapan K. Sasmal, Soumen Bera, Sabyasachi Pal +1
The head--tail (HT) morphology of radio galaxies is seen for a class of radio sources where the primary lobes are being bent in the intercluster weather due to strong interactions…
First detection of ethylene oxide and acetaldehyde in hot core G358.930.03 MM1: Tracing prebiotic oxygen chemistry
Arijit Manna, Sabyasachi Pal
Ethylene oxide (c-CHO) and its isomer, acetaldehyde (CHCHO), are important complex organic molecules owing to their potential role in the formation of amino acids…
Probing thermonuclear bursts and X-ray reflection features in Aql X-1 during 2024 outburst
Manoj Mandal, Sabyasachi Pal, G. K. Jaisawal +3
We report the broadband timing and spectral properties of the neutron star low-mass X-ray binary Aql X-1 during the 2024 outburst with NICER, NuSTAR, and Swift observatories. We de…
Disk reflection and energetics from the accreting millisecond pulsar SRGA J144459.2-604207
Christian Malacaria, Alessandro Papitto, Sergio Campana +11
Accreting millisecond pulsars (AMSPs) are excellent laboratories to study reflection spectra and their features from an accretion disk truncated by a rapidly rotating magnetosphere…
ALMA and GMRT Studies of Dust Continuum Emission and Spectral Lines Toward Oort Cloud Comet C/2022 E3 (ZTF)
Arijit Manna, Sabyasachi Pal, Sekhar Sinha +1
The atomic and molecular compounds of cometary ices serve as valuable knowledge into the chemical and physical properties of the outer solar nebula, where comets are formed. From t…
First Identification and Chemical Modeling of New Thiol (SH) Bearing Molecule in the Interstellar Medium: Dithioformic Acid
Arijit Manna, Sabyasachi Pal
The study of complex organic molecules containing thiol (SH) groups is essential in interstellar media because SH plays an important role in the polymerization of amino acids…
A GMRT 610 MHz radio survey of the North Ecliptic Pole (NEP, ADF-N) / Euclid Deep Field North
Glenn J. White, L. Barrufet, S. Serjeant +17
This paper presents a 610 MHz radio survey covering 1.94 square degrees around the North Ecliptic Pole (NEP), which includes parts of the AKARI (ADF-N) and Euclid, Deep Fields Nort…
Quintessence scalar field and cosmological constant: Dynamics of a multi-component dark energy model
Prasanta Sahoo, Nandan Roy, Himadri Shekhar Mondal
This study explores the dynamics and phase-space behavior of a multi-component dark energy model, where the dark sector consists of a minimally coupled canonical scalar field and t…
Detection of antifreeze molecule ethylene glycol in the hot molecular core G358.930.03 MM1
Arijit Manna, Sabyasachi Pal, Serena Viti
The identification of complex prebiotic molecules using millimeter and submillimeter telescopes allows us to understand how the basic building blocks of life are formed in the univ…
J0011+3217: A peculiar radio galaxy with a one-sided secondary lobe and misaligned giant primary lobes
Shobha Kumari, Sabyasachi Pal, Martin J. Hardcastle +1
From the LOFAR Two-metre Sky Survey second data release (LoTSS DR2) at 144 MHz, we identified a peculiar radio galaxy, J0011+3217. It has a large, one-sided diffuse secondary wing…
Observation of Complex Organic Molecules Containing Peptide-like Bonds Toward Hot Core G358.930.03 MM1
Arijit Manna, Sabyasachi Pal
In star formation regions, the complex organic molecules (COMs) that contain peptide bonds (NHC(=O)) play a major role in the metabolic process because NHC(=O) is…
Study of Complex Nitrogen and Oxygen-bearing Molecules toward the High-mass Protostar IRAS 180891732
Arijit Manna, Sabyasachi Pal, Tapas Baug +1
The observation of oxygen (O)- and nitrogen (N)-bearing molecules gives an idea about the complex prebiotic chemistry in the interstellar medium (ISM). In this article, we present…
Detection and prebiotic chemistry of possible glycine precursor molecule methylenimine towards the hot molecular core G10.47+0.03
Arijit Manna, Sabyasachi Pal
Amino acids are essential for the synthesis of protein. Amino acids contain both amine (RNH) and carboxylic acid (RCOOH) functional groups, which help to understand the…
Detection of possible glycine precursor molecule methylamine towards the hot molecular core G358.930.03 MM1
Arijit Manna, Sabyasachi Pal
The search for the simplest amino acid, glycine (NHCHCOOH), in the interstellar medium (ISM), has become a never-ending story for astrochemistry and astrophysics resear…
Discovery of a circularly symmetric extended diffuse radio emission around an elliptical galaxy with the VLA FIRST survey
Shobha Kumari, Sabyasachi Pal
We identify a source (J1507+3013) with an extended diffuse radio emission around an elliptical galaxy from the Very Large Array (VLA) Faint Images of Radio Sky at Twenty-cm (FIRST)…
A horseshoe-shaped ring of diffuse emission detected at 1.4 GHz
Shobha Kumari, Sabyasachi Pal
We identify a horseshoe-shaped ring (HSR) of diffuse emission in J1407+0453 from the Faint Images of Radio Sky at Twenty-cm (FIRST) survey using the Very Large Array telescope. An…
Bicomplex generalized hypergeometric functions and their applications
Snehasis Bera, Sourav Das, Abhijit Banerjee
In this work, generalized hypergeometric functions for bicomplex argument is introduced and its convergence criteria is derived. Furthermore, integral representation of this functi…
ACA observation and chemical modelling of phosphorus nitride (PN) towards the hot molecular cores G10.47+0.03 and G31.41+0.31
Arijit Manna, Sabyasachi Pal
Phosphorus (P) is one of the important elements for the formation of life and plays a crucial role in several biochemical processes. Recent spectral line surveys have confirmed the…
Identification of the simplest sugar-like molecule glycolaldehyde towards the hot molecular core G358.93-0.03 MM1
Arijit Manna, Sabyasachi Pal, Serena Viti +1
Glycolaldehyde (CHOHCHO) is the simplest monosaccharide sugar in the interstellar medium, and it is directly involved in the origin of life via the 'RNA world' hypothesis. We…