Journal Articles: Recent submissions

Now showing items 441-460 of 1154

Contribution of carbon fixation toward carbon sink in the ocean twilight zone

Saxena, Himanshu; Sahoo, Deepika; Nazirahmed, Sipai; Rai, Deepak Kumar; Khan, Mohammad Atif; Sharma, Niharika; Kumar, Sanjeev; Singh, Arvind (Wiley, 2022-09)

Dark carbon (C) fixation in the ocean twilight zone plays a crucial role toward C sink, but its potential has not been tested sufficiently in experiments. Here we analyzed dark C fixation in the twilight zone of the Arabian ...
Shock induced transformation of non-magnetic to magnetic ISM dust analogue

Roy, Arijit; Singh, Surendra Vikram; Meka, J. K.; Ramachandran, R.; Sahu, D.; Gautam, Abhay Raj Singh; Thiruvenkatam, Vijay; Jayaram, V.; Janardhan, P.; Rajasekhar, B. N.; Bhardwaj, Anil; Mason, N. J.; Sivaraman, B. (Royal Astronomical Society, 2022-12)

The fate of organometallic dust subjected to extreme conditions, especially the shock fronts, in the ISM has not been explored to date. Iron and cyclopentadiene, which have been found to be present in the ISM, are known ...
Optimization of asymmetric quantum Otto engine cycles

Shastri, Rahul; Venkatesh, B. Prasanna (American Physical Society, 2022-08)

We consider the optimization of the work output and fluctuations of a finite-time quantum Otto heat engine cycle consisting of compression and expansion work strokes of unequal duration. The asymmetry of the cycle is ...
High piezoresponse in low-dimensional inorganic halide perovskite for mechanical energy harvesting

Sahoo, Aditi; Paul, Tufan; Makani, Nisha Hiralal; Maiti, Soumen; Banerjee, Rupak (Royal Society of Chemistry, 2022-09)

The potential use of halide perovskite materials in ferroelectric and piezoelectric devices has recently been unraveled, but for widespread applications, detailed and systematic experiments are essential. We report on a ...
Investigations of equatorial plasma bubbles as observed in the OI 630 nm nightglow emissions over off-equatorial and low-latitudinal locations over Indian longitudes

Saha, Sovan; Pallamraju, Duggirala; Ghodpage, Rupesh N. (Elsevier, 2022-12)

Equatorial plasma bubbles (EPBs), generated over the dip-equator during the sunset time, get mapped over to the low-latitudes through the geomagnetic field lines and contribute to structures of different scales in the ...
Search for subsolar-mass binaries in the first half of advanced LIGO's and advanced Virgo's third observing run

Roy, Soumen; Sengupta, Anand S. et al. (American Physical Society, 2022-08)

We report on a search for compact binary coalescences where at least one binary component has a mass betweeen 0.2M⊙ and 1.0M⊙ in Advanced LIGO and Advanced Virgo data collected between 1 April 2019 1500 UTC and 1 October ...
Investigation on the MLT tidal variability during september 2019 minor sudden stratospheric warming

Mitra, Gourav; Guharay, A.; Batista, P. P.; Buriti, R. A.; Moffat-Griffin, T. (Elsevier, 2023-01)

Tidal variability in the mesosphere and lower thermosphere (MLT) during September 2019 Southern hemisphere minor sudden stratospheric warming (SSW) is investigated utilizing ground-based meteor radar wind observations from ...
Thermal and thermoelectric responses of hot QCD medium in time-varying magnetic fields

Gowthama K. K.; Kurian, Manu; Chandra, Vinod (American Physical Society, 2022-08)

The thermal response of the hot QCD matter has been studied in the presence of a time-varying magnetic field. The impact of the magnetic field, its time dependence, and the collision aspects of the medium on thermal transport ...
Relict proglacial lake of Spituk (Leh), northwest (NW) Himalaya: A repository of hydrological changes during Marine Isotopic Stage (MIS)-2

Jena, Partha Sarathi; Bhushan, Ravi; Raj, Harsh; Dabhi, Ankur J.; Sharma, Shubhra; Shukla, Anil D.; Juyal, Navin (Elsevier, 2022-09)

In the northwestern Himalaya (Ladakh and Karakoram), the spatial and temporal changes in the late Quaternary glaciation were modulated by a combination of two contrasting moisture sources (viz., the Indian Summer Monsoon ...
Searches for gravitational waves from known pulsars at two harmonics in the second and third LIGO-Virgo observing runs

Roy, Soumen; Sengupta, Anand S. et al. (American Astronomical Society, 2022-08)

We present a targeted search for continuous gravitational waves (GWs) from 236 pulsars using data from the third observing run of LIGO and Virgo (O3) combined with data from the second observing run (O2). Searches were for ...
Mechanisms and pathways for coordinated control of fine particulate matter and ozone

Ojha, Narendra; Soni, Meghna; Kumar, Manish; Gunthe, Sachin S.; Chen, Ying; Ansari, Tabish U. (Springer, 2022-08)

Fine particulate matter (PM2.5) and ground-level ozone (O3) pose a significant risk to human health. The World Health Organization (WHO) has recently revised healthy thresholds for both pollutants. The formation and evolution ...
Multiwavelength observations by XSM, Hinode, and SDO of an active region. Chemical abundances and temperatures

Del Zanna, G.; Mondal, Biswajit; Rao, Y. K.; Mithun, N. P. S.; Vadawale, S. V.; Reeves, K. K.; Mason, H. E.; Sarkar, A.; Janardhan, P.; Bhardwaj, A. (IOP Publishing, 2022-08)

We have reviewed the first year of observations of the Solar X-ray Monitor (XSM) on board Chandrayaan-2 and the available multiwavelength observations to complement the XSM data, focusing on the Solar Dynamics Observatory ...
Constraining the topological Gauss-Bonnet coupling from GW150914

Chakravarti, Kabir; Ghosh, Rajes; Sarkar, Sudipta (American Physical Society, 2022-08)

Recent gravitational wave observation based on the data from GW150914 has confirmed Hawking's area theorem and estimated the increase in total horizon area during a merger process of two Kerr black holes. We use this result ...
Synthesis, electrical transport mechanisms and photovoltaic characteristics of p-ZnIn2Se4/n-CdTe thin film heterojunction

Dhruv, D. K.; Patel, B. H.; Agrawal, Naveen; Banerjee, Rupak; Dhruv, S. D.; Patel, P. B.; Patel, Vikas, (Springer, 2022-08)

The synthesis and electrical transport features of vacuum-deposited p-ZnIn2Se4/n-CdTe (p-ZIS/n-CT) heterojunction diode (HJD) are discussed. Transmission electron microscopy (TEM) was used to characterize the microstructures ...
All-sky, all-frequency directional search for persistent gravitational waves from Advanced LIGO's and advanced Virgo's first three observing runs

Roy, Soumen; Sengupta, Anand S. et al. (American Physical Society, 2022-06)

We present the first results from an all-sky all-frequency (ASAF) search for an anisotropic stochasticgravitational-wave background using the data from the first three observing runs of the Advanced LIGOand Advanced Virgo ...
Shock processing of amorphous carbon nanodust

Roy, Arijit; Singh, Surendra Vikram; Ambresh, M.; Sahu, D.; Meka, J. K.; Ramachandran, R.; Samarth, P.; Pavithraa, S.; Jayaram, V.; Hill, H.; Cami, J.; Rajasekhar, B. N.; Janardhan, P.; Bhardwaj, Anil; Mason, N. J.; Sivaraman, B. (Elsevier, 2022-07)

Our understanding on the role of amorphous carbon in the interstellar medium to form complex structures, such as carbon nanotube/graphene/fullerene, is limited to date. We have investigated how shocks may induce physico-chemical ...
An early presence of modern human or convergent evolution? a 247 ka middle palaeolithic assemblage from Andhra Pradesh, India

Anil, Devara; Chauhan, Naveen; Ajithprasad, P.; Devi, Monika; Mahesh, Vrushab; Khan, Zakir (Elsevier, 2022-08)

The region of South Asia, located between the prepared core-based technologies in the west and simple core technologies in the east, is crucial in the modern human dispersal routes. The nature and chronology of initial ...
Unraveling the observational signatures of cloud-cloud collision and hub-filament systems in W31

Maity, Arup Kumar; Dewangan, L. K.; Sano, H.; Tachihara, K.; Fukui, Y.; Bhadari, Naval Kishor (IOP Publishing, 2022-07)

To understand the formation process of massive stars, we present a multiscale and multiwavelength study of the W31 complex hosting two extended H ii regions (i.e., G10.30-0.15 (hereafter, W31-N) and G10.15-0.34 (hereafter, ...
Ratchetlike motion of helical bilayers induced by boundary constraints

Tanaka, Michio; Wang, Xinyu; Mishra, Chandan K.; Cai, Jianguo; Feng, Jian; Kamien, Randall D.; Yodh, A. G. (American Physical Society, 2022-07)

Ratchetlike motion of helical bilayers induced by boundary constraints
Quantum transport in quasiperiodic lattice systems in the presence of Buttiker probes

Saha, Madhumita; Venkatesh, B. Prasanna; Agarwalla, Bijay Kumar (American Physical Society, 2022-06)

Quasiperiodic lattice systems offer diverse transport properties. In this paper, we investigate environment-induced effects on the transport properties for quasiperiodic systems, namely the one-dimensional Aubry-Andre-Harper ...

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