Browsing Journal Articles by Title

Browsing Journal Articles by Title

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  • Garattini, Remo; Majumder, Barun (Elsevier, 2014-07)
    We compute the Zero Point Energy (ZPE) induced by a naked singularity with the help of a reformulation of the Wheeler–DeWitt equation. A variational approach is used for the calculation with Gaussian Trial Wave Functionals. ...
  • Sengupta, Anand (American Physical Society, 2015-01)
    In this paper we present the results of a coherent narrow-band search for continuous gravitational-wave signals from the Crab and Vela pulsars conducted on Virgo VSR4 data. In order to take into account a possible small ...
  • Nemala, Siva Sankar; Ravulapalli, Sujitha; Kartikay, Purnendu; Banavath, Ramu; Mallick, Sudhanshu; Bhargava, Parag; Bhushan, Mayank; Mohapatra, Debananda (Elsevier, 2021-03)
    This work presents an efficient and stable platinum-free shear-exfoliated graphene nanoplatelets (SE-GNP) based counter electrode (CE) for dye-sensitized solar cells (DSSCs). The SE-GNP is prepared by the simple, low cost ...
  • Hati, Chandan; Sarkar, Utpal (Springer Berlin Heidelberg, 2016-05)
    We propose a realization of mass varying neutrino dark energy in two extensions of the Standard Model (SM) with a dynamical neutrino mass related to the acceleron field while satisfying the naturalness. In the first scenario ...
  • Joshipura, Anjan S.; Nath, Newton (American Physical Society, 2016-08)
    We discuss the consequences of assuming that the (Majorana) neutrino mass matrix Mν and the charged lepton mass matrix Ml satisfy STνMνSν=−Mν and T†lMlM†lTl=MlM†l with respect to some discrete groups Sν and Tl contained ...
  • Deppisch, Frank F.; Hati, Chandan; Patra, Sudhanwa; Pritimita, Prativa; Sarkar, Utpal (American Physical Society, 2018-02)
    We discuss a class of left-right symmetric theories with a universal seesaw mechanism for fermion masses and mixing and the implications for neutrinoless double beta (0νββ)decay where neutrino masses are governed by natural ...
  • Dewangan, L. K.; Ojha, D. K.; Sharma, Saurabh; Palacio, S. del; Bhadari, Naval Kishor; Das, A. (American Astronomical Society, 2020-10)
    We present an analysis of multiwavelength observations of an area of 0fdg27 � 0fdg27 around the Galactic H ii region G18.88?0.49, which is powered by an O-type star (age ~ 105 yr). The Herschel column density map reveals ...
  • Ghosh, Monojit; Ghoshal, Pomita; Goswami, Srubabati; Nath, Newton; Raut, Sushant K. (American Physical Society, 2016-01)
    The three major unknown neutrino oscillation parameters at the present juncture are the mass hierarchy, the octant of the mixing angle θ23 and the CP phase δCP. It is well known that the presence of hierarchy-δCP and octant ...
  • Biswas, Ayan; Mclver, J.; Mahabal, A. (IOP Publishing, 2020-08)
    A network of three or more gravitational wave detectors simultaneously taking data is required to generate a well-localized sky map for gravitational wave sources, such as GW170817. Local seismic disturbances often cause ...
  • Chakraborty, Kaustav; Goswami, Srubabati; Long, Kenneth (American Physical Society, 2021-04)
    In this work we investigate the usefulness of nuSTORM as a probe of two new-physics scenarios that are sterile neutrinos and nonunitarity of the neutrino mixing matrix. For the sterile neutrino we show the importance of ...
  • K. N., Vishnudath; Choubey, Sandhya; Goswami, Srubabati (APS, 2019-05)
    We study the implications of the Dark-LMA (DLMA) solution to the solar neutrino problem for neutrinoless double beta decay (0???). We show that, while the predictions for the effective mass governing 0??? remain unchanged ...
  • Jana, Arghajit; Jaisawal, Gaurava K.; Naik, Sachindra; Kumari, Neeraj; Chhotaray, Birendra; Altamirano, D.; Remillard, R. A.; Gendreau, Keith C. (Royal Astronomical Society, 2021-07)
    We present detailed timing and spectral studies of the black hole candidate MAXI J0637–430 during its 2019–2020 outburst using observations with the Neutron Star Interior Composition Explorer (NICER) and the Neil Gehrels ...
  • Aarthy, Esakkiappan; Rai, Archita; Ganesh, Shashikiran; Vadawale, Santosh V. (Society of Photo-optical Instrumentation Engineers, 2019-08)
    Near infrared camera spectrograph and polarimeter (NICSPol) is a near-infrared (NIR) imaging polarimeter developed for the Near-Infrared Camera and Spectrograph (NICS), one of the backend instruments of the 1.2-m Cassegrain ...
  • Sengupta, Anand (IOP Science, 2014-05)
    The Numerical INJection Analysis (NINJA) project is a collaborative effort between members of the numerical relativity and gravitational-wave (GW) astrophysics communities. The purpose of NINJA is to study the ability to ...
  • Bhattacharjee, Srijit; Sarkar, Sudipta (American Physical Society, 2017-04)
    We prove the nonexistence of massive scalar, vector and tensor hairs outside the surface of a static and stationary compact reflecting star. Our result is the extension of the no-hair theorem for black holes to horizonless ...
  • Vaity, Pravin; Chithrabhanu, P.; Salla, Gangi Reddy; Prabhakar, Shashi; Singh, Ravindra P. (The Optical Society, 2016-02)
    Vector vortex beams are classified into four types depending upon spatial variation in their polarization vector. We have generated all four of these types of vector vortex beams by using a modified polarization Sagnac ...
  • Sahoo, Deepika; Saxena, Himanshu; Tripathi, Nidhi; Khan, Mohammad Atif; Rahman, Abdur; Kumar, Sanjeev; Sudheer, A. K.; Singh, Arvind (Inter Research, 2020-10)
    Nitrogen (N) and phosphorus (P) determine the strength of the oceans biological carbon (C) pump, and variation in the N:P ratio is key to phytoplankton growth. A fixed C:N:P ratio (106:16:1) in organic matter and deep-water ...
  • Awada, Adel; Ali, Ahmed Farag; Majumder, Barun (IOP Publishing, 2013-10)
    In this work, we study FRW cosmologies in the context of gravity rainbow. We discuss the general conditions for having a nonsingular FRW cosmology in gravity rainbow. We propose that gravity rainbow functions can be fixed ...
  • Sheel, Varun; Uttam, Shefali; Mishra, S. K. (Wiley, 2021-11)
    On Mars, dust devils play an important role in injecting dust grains into the atmosphere. The exact amount that they contribute to the dust budget of the atmosphere is yet not clearly known. In this study, we model the ...
  • Gupta, Shivangi; Naik, Sachindra; Jaisawal, Gaurava K. (Oxford University Press, 2019-12)
    We report the results obtained from a detailed timing and spectral studies of Be/X-ray binary pulsar 2S 1417?624 using data from Swift and NuSTAR observatories. The observations were carried out at the peak of a giant ...

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