A state-of the-art near infrared photo polarimeter was designed and developed at Physical Research Laboratory, Ahmedabad, India to undertake the study of star forming regions, symbiotic stars and AGB stars etc. The instrument ...

The observed mass spectra for stars and interstellar clouds are discussed. Stars are born from clouds, but their mass spectra are fundamentally different. A new model is proposed in which the Salpeter function representing ...

Using discrete dipole approximation (DDA) we calculate the extinction efficiencies of the porous silicate grains. We use these efficiencies to reproduce the observed extinction in the region of star formation in Orion and ...

The analysis of high-resolution spectra of DZ Andromedae, a suspected R Coronae Borealis variable, is presented here. The spectra of DZ And show the characteristics of a normal K2 III star, indicating that the star was ...

Using our data along with the photometric data available from the literature, we have made extensive analysis of the light variations of UX Ari. The parametric study of the photometric data for the last 22 years in the ...

Hori's method of solving coupled non-linear differential equations has been used to solve restricted problem of three bodies and non-resonance case has been discussed. For a certain set of values of the parameters, the ...