Bhattacharyya, Sukannya; Mohanty, Subhendra; Parashari, Priyank(Cornell University Library, 2020-10)
Recently, the NANOGrav collaboration has reported the evidence for a common-spectrum stochastic process, which might be interpreted as the first ever detection of stochastic gravitational wave (GW) background. We discuss ...
Water splitting for H2 production by absorbing sunlight is broadly used as a common technique to counter existing energy crisis and environmental problems, caused by extreme use of fossil fuels. We report a versatile and ...
Ghosh, Rajes; Sarkar, Sudipta(Cornell University Library, 2020-09)
The zeroth law of black hole mechanics is an assertion of constancy of the surface gravity on a stationary Killing horizon. The Hawking temperature of the black hole horizon is proportional to the surface gravity. Therefore, ...
Sengupta, Anand S. et al.(American Physical Society, 2020-08)
We report the observation of gravitational waves from a binary-black-hole coalescence during the first two weeks of LIGO's and Virgo's third observing run. The signal was recorded on April 12, 2019 at 05?30?44 UTC with a ...
Kalon, Gopinadhan et al.(American Chemical Society, 2020-05)
Defect-free graphene is impermeable to gases and liquids but highly permeable to thermal protons. Atomic-scale defects such as vacancies, grain boundaries, and Stone�Wales defects are predicted to enhance graphene's proton ...
For primordial black holes (PBHs) to form a considerable fraction of cold dark matter, the required amplitude of primordial scalar perturbations is quite large (P?(k)?10?2) if PBH is formed in radiation epoch. In alternate ...
Sharma, Varun; Kumar, S. Chaitanya; Samanta, G. K.; Ebrahim-Zadeh, M.(Optical Society of America, 2020-07)
Structured beams, conventionally generated through the spatial mode conversion of the Gaussian laser beams, have attracted great interest in recent years. Optical parametric oscillators (OPOs) have demonstrated the potential ...
Baliyan, Shivani; Ray, Dwijesh(Japan Association of Mineralogical Sciences, 2020-07)
Mukundpura is a carbonaceous chondrite (CM2) recently fell in Rajasthan, India (June 6, 2017). A typical fine�grained, clast�dominant matrix contains a few isolated forsterite and FeO�rich olivine grains. In this study, ...
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 ...
Jaisawal, Gaurava K.; Naik, Sachindra; Ho, Wynn C. G.; Kumari, Neeraj; Epili, Prahlad; Vasilopoulos, Georgios(Cornell University Library, 2020-08)
We present the results obtained from the analysis of high mass X-ray binary pulsar 4U 1909+07 using NuSTAR and Astrosat observations in 2015 and 2017 July, respectively. X-ray pulsations at ?604 s are clearly detected in ...
The effective theory of large-scale structure formation based on CDM paradigm predicts finite dissipative effects in the resulting fluid equations. In this work, we study how viscous effect that could arise if one includes ...