25 citations · 54 across the 6 of their papers we have counts for
6 papers
Modelling the mid-infrared polarization in dust around young stars
Gautam Saikia, Rupjyoti Gogoi, Ranjan Gupta +1
The presence of crystalline silicates has been detected in the circumstellar environment of several young stars in the recent past and there is evidence of silicon carbide (SiC) de…
Interstellar Dust models towards some IUE stars
Nisha Katyal, Ranjan Gupta, D B Vaidya
We study the extinction properties of the composite dust grains, consisting of host silicate spheroids and graphite as inclusions, using discrete dipole approximation (DDA). We cal…
Interstellar Grains: Effect of Inclusions on Extinction
Nisha Katyal, Ranjan Gupta, D. B. Vaidya
A composite dust grain model which simultaneously explains the observed interstellar extinction, polarization, IR emission and the abundance constraints, is required. We present a…
Infrared Emission from the Composite Grains: Effects of Inclusions and Porosities on the 10 and 18 Features
D. B. Vaidya, Ranjan Gupta
In this paper we study the effects of inclusions and porosities on the emission properties of silicate grains and compare the model curves with the observed infrared emission from…
Composite Grains: Effects of Porosity and Inclusions on the 10m Silicate Feature
Deepak B. Vaidya, Ranjan Gupta
We calculate the absorption efficiency of the composite grains, made up of host silicate spheroids and inclusions of ices/graphites/or voids, in the spectral region m Th…
Composite Interstellar Grains
D. B. Vaidya, Ranjan Gupta, T. P. Snow
The composite grain is made up of a host silicate spheroid and graphite inclusions. The extinction efficiencies of the composite spheroidal grains for three axial ratios are comput…