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Planetary Nebulae with Ultra-Violet Imaging Telescope (UVIT): Far Ultra-violet halo around the Bow Tie nebula (NGC 40)
N. Kameswara Rao, F. Sutaria, J. Murthy +3
Context. NGC 40 is a planetary nebula with diffuse X-ray emission, suggesting an interaction of the high speed wind from WC8 central star (CS) with the nebula. It shows strong Civ…
Modelling type IIP/IIL supernovae interacting with recent episodic mass ejections from their presupernova stars with MESA & SNEC
Sanskriti Das, Alak Ray
We show how dense compact discrete shells of circumstellar gas immediately outside the red supergiants affect the optical light curves of type II-P/II-L SNe taking the example of S…
Gravitomagnetism and Pulsar Beam Precession near a Kerr Black Hole
Prashant Kocherlakota, Pankaj S. Joshi, Sudip Bhattacharyya +3
A rotating black hole causes the spin-axis of a nearby pulsar to precess due to geodetic and gravitomagnetic frame-dragging effects. The aim of our theoretical work here is to expl…
Evolution and Explosion of Massive Stars Leading to IIP-IIL SNe with MESA and SNEC
Sanskriti Das, Alak Ray
We show how the dense shells of circumstellar gas immediately outside the red supergiants (RSGs) can affect the early optical light curves of Type II-P SNe taking the example of SN…
325 and 610 MHz Radio Counterparts of SNR G353.60.7 a.k.a. HESS J1731347
A. J. Nayana, Poonam Chandra, Subhashis Roy +6
HESS J1731347 a.k.a. SNR G353.60.7 is one of the five known shell-type supernova remnants (SNRs) emitting in the very high energy (VHE, Energy 0.1 TeV) -ray domain. We…