Search Results - "Das, H S"

Bok globule CB 17: polarization, extinction and distance by Choudhury, G B, Barman, A, Das, H S, Medhi, B J

“…Abstract In this article, the results obtained from a polarimetric study of Bok globule CB 17 in both optical and submillimetre wavelengths are presented…”
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Synthesis and evaluation of coastal and marine biodiversity spatial information in the United Arab Emirates for ecosystem-based management by Mateos-Molina, D., Ben Lamine, E., Antonopoulou, M., Burt, J.A., Das, H.S., Javed, S., Judas, J., Khan, S.B., Muzaffar, S.B., Pilcher, N., Rodriguez-Zarate, C.J., Taylor, O.J.S., Giakoumi, S.

“…The United Arab Emirates (UAE) host valuable coastal and marine biodiversity that is subjected to multiple pressures under extreme conditions. To mitigate…”
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Modelling the polarization properties of Comet 1P/Halley using a mixture of compact and aggregate particles by Das, H. S., Paul, D., Suklabaidya, A., Sen, A. K.

“…Both the in situ measurement of Comet 1P/Halley and the Stardust-returned samples of Comet Wild 2 showed the presence of a mixture of compact and aggregate…”
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Unveiling the properties of asteroids: linking photopolarimetry to spectral classification by Prasad, B, Das, H S

“…ABSTRACT This paper attempts to present a comprehensive analysis of the photopolarimetric properties of asteroids. In light of the limitations identified in…”
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Magnetic field alignment in low-mass molecular clouds: the role of turbulence and density of the clouds by Barman, B, Das, H S

“…ABSTRACT In this work, we report the role of turbulence (measured by the $^{12}\mathrm{ CO}$ linewidth, $\Delta V$) on the offset between the orientation of…”
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Biology and conservation of marine turtles in the northwestern Indian Ocean: a review by Al Ameri, HM, Al Harthi, S, Al Kiyumi, A, Al Sariri, TS, Al-Zaidan, ASY, Antonopoulou, M, Broderick, AC, Chatting, M, Das, HS, Hesni, MA, Mancini, A, Miller, JD, Mobaraki, A, Rezaie-Atagholipour, M, Pilcher, NJ, Rees, AF, Rodríguez-Zárate, CJ, Smyth, DM, Tanabe, LK, Yaghmour, F, Yusuf, AA, Godley, BJ

“…The northwestern Indian Ocean hosts globally crucial marine biodiversity, which is relatively understudied. There has, however, been significant research and…”
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Effect of compaction on the kinetics of thermal decomposition of dolomite under non-isothermal condition by Maitra, S, Choudhury, A, Das, H. S, Pramanik, Ms. J

“…Many workers [1–9] studied the kinetics of dolomite decomposition to study the effects of different parameters like, gas (CO₂, N₂ etc.) pressures, water vapor,…”
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The Umov effect in cosmic dust analogue fluffy aggregates by Mazarbhuiya, A M, Das, H S, Halder, P

“…ABSTRACT We investigate the effect of porosity in the Umov effect for the first time using the aggregate dust model. The Umov effect is an inverse correlation…”
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Aggregate model of cometary dust: an application to comet Levy 1990XX by Das, H. S., Das, S. R., Paul, T., Suklabaidya, A., Sen, A. K.

“…In the present work, the light-scattering properties of comet Levy 1990XX are studied through simulations using Ballistic Particle-Cluster Aggregation (BPCA)…”
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A statistical approach to polarimetric and photometric investigation of the intermediate-age open cluster NGC 1912 by Biswas, Samrat, Medhi, Biman J, Deb, Sushmita, Deb, Sukanta, Das, H S, Perren, G I

“…ABSTRACT This paper presents a comprehensive multiwavelength investigation of the intermediate-age open cluster NGC 1912. We identified 401 member stars for…”
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Probing the magnetic field and dust grain properties of two dark clouds L1495 and L1498 through photopolarimetry by Choudhury, G B, Goswami, B, Das, H S, Medhi, B J, Pandey, J C

“…ABSTRACT We present the R-band polarimetry of two low-latitude Lynd’s clouds L1495 and L1498 acquired with AIMPOL at Aryabhatta Research Institute of…”
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Aggregate dust model to describe polarization properties of Comet Hale–Bopp by Das, H. S., Das, S. R., Sen, A. K.

“…In this work, the observed linear-polarization data of Comet Hale–Bopp are studied at wavelengths λ= 0.485 and 0.684 μm through simulations using Ballistic…”
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The photometric study of light scattering from the surface of alumina powder and interpretations by Hapke formula by Deb, D., Sen, A.K., Das, H.S., Gupta, R.

“…A laboratory experiment helps to understand the light scattering property of regolith like samples with known compositions and other physical parameters. The…”
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Study of magnetic field geometry and extinction in Bok globule CB130 by Chakraborty, A., Das, H. S.

“…We trace the peripheral magnetic field structure of Bok globule CB130 by estimating the linear polarization of its field stars in the R band. The magnetic…”
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An analysis of the distribution of background star polarization in dark clouds by Sen, A. K., Mukai, T., Gupta, R., Das, H. S.

“…The polarization observed for stars behind dark clouds (Bok globules) is often used as a diagnostic to study the ongoing star formation processes in these…”
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Study of dust coma of comets 32P/Comas Sola and C/2015 V2 (Johnson) by imaging polarimetry by Mazarbhuiya, A. M., Das, H. S., Medhi, B. J., Halder, P., Deb Roy, P.

“…We present the results obtained from photometric and polarimetric observation of a Jupiter family comet 32P/Comas Sola, and a Oort cloud comet C/2015 V2…”
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Study of background star polarization and polarization efficiency of three selected Bok globules: CB56, CB60 and CB69 by Chakraborty, A., Das, H. S., Paul, D.

“…We present the polarization maps of three selected Bok globules, CB56, CB60 and CB69, constructed using V-band data from a CCD imaging polarimeter. The aim of…”
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Distance estimation of some selected small Bok globules by Das, A., Das, H. S., Senorita Devi, A.

“…The distance determination of a small Bok globule is often difficult because of its small size and opaqueness. In this work, we determine the distances to six…”
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The study of correlation among different scattering parameters in an aggregate dust model by Mazarbhuiya, A. M., Das, H. S.

“…We study the light scattering properties of aggregate particles in a wide range of complex refractive indices ( m = n + i k , where 1.4 ≤ n ≤ 2.0 , 0.001 ≤ k ≤…”
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Study of light scattering properties of dust aggregates with a wide variation of porosity by Deb Roy, P., Halder, P., Das, H. S.

“…We study the light scattering properties of moderately large dust aggregates ( 0.8 μm ≲ R ≲ 2.0 μm ) with a wide variation of porosity ( P ) from 0.57 to 0.98…”
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