77 citations · 172 across the 9 of their papers we have counts for
9 papers
Planetary interior and habitability of exoplanets: Recent developments
Nisha Katyal
This article deals with the most recent developments in the field of exoplanetary science connecting the interior of the planets with their habitability. In this issue, I have spec…
Effect of mantle oxidation state and escape upon the evolution of Earth's magma ocean atmosphere
Nisha Katyal, Gianluigi Ortenzi, John Lee Grenfell +7
The magma ocean period was a critical phase determining how Earth atmosphere developed into habitability. However there are major uncertainties in the role of key processes such as…
Coarsening Dynamics in the Vicsek Model of Active Matter
Nisha Katyal, Supravat Dey, Dibyendu Das +1
We study the flocking model introduced by Vicsek in the "coarsening" regime. At standard self-propulsion speeds, we find two distinct growth laws for the coupled density and veloci…
What factors affect the duration and outgassing of the terrestrial magma ocean?
Athanasia Nikolaou, Nisha Katyal, Nicola Tosi +3
The magma ocean (MO) is a crucial stage in the build-up of terrestrial planets. Its solidification and the accompanying outgassing of volatiles set the conditions for important pro…
Evolution and Spectral Response of a Steam Atmosphere for Early Earth with a coupled climate-interior model
Nisha Katyal, Athanasia Nikolaou, Mareike Godolt +4
The evolution of Earth's early atmosphere and the emergence of habitable conditions on our planet are intricately coupled with the development and duration of the magma ocean phase…
Robustness of the Fractal Regime for the Multiple-Scattering Structure Factor
Nisha Katyal, Robert Botet, Sanjay Puri
In the single-scattering theory of electromagnetic radiation, the {\it fractal regime} is a definite range in the photon momentum-transfer , which is characterized by the scalin…
Fractal Signatures in Analogs of Interplanetary Dust Particles
Nisha Katyal, Varsha Banerjee, Sanjay Puri
Interplanetary dust particles (IDPs) are an important constituent of the earth's stratosphere, interstellar and interplanetary medium, cometary comae and tails, etc. Their physical…
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…