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Testing Theoretical Bar Formation Criterion
Sandeep Kataria Bars are ubiquitous features in the disk galaxies. Observations show that around 2/3 of the disk galaxies in the observable universe (optical and infrared) have a bar in their central region. Bars are thought to be formed as a result of global instability in the disk, which traps eccentric orbits of the stars…
Miles to Go to the Edge of the Cosmos
Professor Varun Sahni speaks about his exciting career, childhood days, PhD life in Moscow, and his views on the future of cosmology About the IntervieweeProfessor Varun Sahni is an Indian theoretical physicist, astrophysicist, and distinguished professor at the Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune. Known for his research in cosmology, Professor Sahni has…
“Errors are beautiful and Gaussian”-Really?
Soumya Sengupta Gaussian or Normal Distribution is the most common of all the probability distributions in the sense that the heights of the boys in a classroom, the errors in any experiments, or the probability of acceptance of your proposal (in your company or in love affairs) all follow the Gaussian distribution. De Moivre first reported…
Orion Nebula
“Orion Nebula is one of the most famous deep-sky objects, which most beginners in astrophotography target. Even I did the same. My first attempt with Orion Nebula was a single exposure of 30 s, ISO 3200, in December 2018. But the core area got overexposed. Since this was my first attempt on DSO imaging using…
More than me…
I’m shy
Still trying to be brave
To walk again
Out of my grave

