Search Results - "Agrawal, V. K"

2017 Outburst of H 1743–322: AstroSat and Swift View by Sahu, Pragati, Chand, Swadesh, Thakur, Parijat, Dewangan, G. C., Agrawal, V. K., Tripathi, Prakash, Das, Subhashish

“…Abstract We perform a comprehensive timing and broadband spectral analysis using an AstroSat observation of the low-mass black hole X-ray binary H 1743–322…”
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Accretion flow dynamics during 1999 outburst of XTE J1859+226—modeling of broadband spectra and constraining the source mass by Nandi, Anuj, Mandal, S., Sreehari, H., Radhika, D., Das, Santabrata, Chattopadhyay, I., Iyer, N., Agrawal, V. K., Aktar, R.

“…We examine the dynamical behavior of accretion flow around XTE J1859+226 during the 1999 outburst by analyzing the entire outburst data (∼166 days) from RXTE…”
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Software-Based Resolver-to-Digital Conversion Using a DSP by Sarma, S., Agrawal, V.K., Udupa, S.

“…A simple and cost-effective software-based resolver-to-digital converter using a digital signal processor is presented. The proposed method incorporates…”
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X-ray spectral evolution of the extragalactic Z source LMC X-2 by Agrawal, V. K., Misra, R.

“…We present the results obtained by a detailed study of the extragalactic Z source LMC X-2, using broad-band Suzaku data and a large (∼750 ks) data set obtained…”
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The potential of entomopathogens in biological control of white grubs by Chandel, Ravinder S., Soni, Saurbh, Vashisth, Sumit, Pathania, Mandeep, Mehta, Pawan K., Rana, Abhishek, Bhatnagar, Ashok, Agrawal, V. K.

“…White grubs are highly polyphagous and most destructive soil pests inflicting damage to a wide variety of crops. In India, more than 1000 species of white…”
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AstroSat and MAXI view of Cygnus X-1: Signature of an ‘extreme’ soft nature by Kushwaha, Ankur, Agrawal, V K, Nandi, Anuj

“…ABSTRACT We present a detailed spectral and timing analysis of Cygnus X-1 with multi-epoch observations, during 2016–2019, by SXT and LAXPC onboard AstroSat…”
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AstroSat view of LMC X-2: evolution of broad-band X-ray spectral properties along a complete Z-track by Agrawal, V K, Nandi, Anuj

“…ABSTRACT In this paper, we report the first results of the extragalactic Z-source Large Magellanic Cloud (LMC) X-2 obtained using the ∼140 ks observations with…”
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AstroSat view of MAXI J1535−571: broad-band spectro-temporal features by Sreehari, H, Ravishankar, B T, Iyer, Nirmal, Agrawal, V K, Katoch, Tilak B, Mandal, Samir, Nandi, Anuj

“…We present the results of Target of Opportunity (ToO) observations made with AstroSat of the newly discovered black hole binary MAXI J1535-571. We detect…”
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Application of genetic programming for multicategory pattern classification by Kishore, J.K., Patnaik, L.M., Mani, V., Agrawal, V.K.

“…Explores the feasibility of applying genetic programming (GP) to multicategory pattern classification problem. GP can discover relationships and express them…”
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Antiulcerogenic effect of methanolic extract of Emblica officinalis: an experimental study by Sairam, K, Rao, Ch.V, Babu, M.Dora, Kumar, K.Vijay, Agrawal, V.K, K. Goel, R

“…The ulcer protective potential of methanolic extract of Emblica officinalis Gaertn. (EOE) was assessed in different acute gastric ulcer models in rats induced…”
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Dielectric constant, magnetic permeability and microwave absorption studies of hot-pressed Ba-CoTi hexaferrite composites in X-band by Singh, Praveen, Babbar, V. K, Razdan, Archana, Srivastava, S. L, Agrawal, V. K, Goel, T. C

“…The microwave absorption, complex permittivity and complex permeability studies of hot-pressed hexaferrite composites prepared with Ba(CoTi)ₓFe₁₂₋₂ₓO₁₉…”
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Energy-dependent Time Lags in the Seyfert 1 Galaxy NGC 4593 by Sriram, K, Agrawal, V. K, Rao, A. R

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QSAR prediction of toxicity of nitrobenzenes by AGRAWAL, V. K, KHADIKAR, P. V

“…A QSAR analysis has been carried out on the toxicities of 40 mono-substituted nitrobenzenes using recently introduced PI and Sz indices, as well as older…”
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AstroSat view of GRS 1915+105 during the soft state: detection of HFQPOs and estimation of mass and spin by Sreehari, H, Nandi, Anuj, Das, Santabrata, Agrawal, V K, Mandal, Samir, Ramadevi, M C, Katoch, Tilak

“…ABSTRACT We report the results of AstroSat observations of GRS 1915+105 obtained using 100 ks Guaranteed Time during the soft state. The colour–colour diagram…”
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AstroSat and MAXI view of the black hole binary 4U 1630−472 during 2016 and 2018 outbursts by Baby, Blessy E, Agrawal, V K, Ramadevi, M C, Katoch, Tilak, Antia, H M, Mandal, Samir, Nandi, Anuj

“…ABSTRACT We present an in-depth spectral and timing analysis of the black hole binary 4U 1630−472 during 2016 and 2018 outbursts as observed by AstroSat and…”
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AstroSat View of the Newly Discovered X-Ray Transient MAXI J1803–298 in the Hard-intermediate State by Chand, Swadesh, Dewangan, G. C., Thakur, Parijat, Tripathi, Prakash, Agrawal, V. K.

“…Abstract We perform comprehensive temporal and spectral analysis of the newly discovered X-ray transient MAXI J1803–298 using an AstroSat target of opportunity…”
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X-Ray Variability of Active Galactic Nuclei in the Soft and Hard X-Ray Bands by Chitnis, V. R, Pendharkar, J. K, Bose, D, Agrawal, V. K, Rao, A. R, Misra, R

“…We investigate the X-ray variability characteristics of hard X-ray-selected active galactic nuclei (AGNs)-based on Swift/Burst Alert Telescope-in the soft…”
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Unravelling the foretime of GRS 1915+105 using AstroSat observations: Wide-band spectral and temporal characteristics by Athulya, M P, Radhika, D, Agrawal, V K, Ravishankar, B T, Naik, Sachindra, Mandal, Samir, Nandi, Anuj

“…ABSTRACT We present a comprehensive study of GRS 1915+105 in wide-energy band (0.5–60 keV) using AstroSat – SXT and LAXPC observations during the period of…”
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SWIFT view of the 2015 outburst of GS 2023+338 (V404 Cyg): complex evolution of spectral and temporal characteristics by Radhika, D., Nandi, A., Agrawal, V. K., Mandal, S.

“…We study the spectral and temporal characteristics of the source GS 2023+338 (V404 Cyg) during the initial phase of its 2015 June outburst, over the energy…”
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Coronal vertical structure variations in normal branch of GX 17+2: AstroSat’s SXT and LAXPC perspective by Malu, S, Sriram, K, Agrawal, V K

“…ABSTRACT We performed spectro-temporal analysis in the 0.8–50 keV energy band of the neutron star Z source GX 17+2 using AstroSat Soft X-ray Telescope (SXT)…”
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