Degree: Master degree
Division: Astrophysics II (Warsaw)ORCID: 0009-0002-8798-4120
Office: 40
Phone: —
E-mail: pdubey@camk.edu.pl
Private e-mail: punitdubey214@gmail.com
Hi everyone, I'm Punit.
My research interests lie primarily in the field of stellar astrophysics, particularly binary star systems, accretion processes, and transient phenomena.
During my previous research, I worked on Early Warning Signals (EWS) in recurrent novae, investigating whether statistical properties of their light curves can reveal signatures of an approaching critical transition.
I studied two symbiotic recurrent novae, T Coronae Borealis (T CrB) and RS Ophiuchi (RS Oph). The motivation was to investigate whether statistical indicators associated with critical slowing down could be identified before nova eruptions.
My analysis involved studying the evolution of statistical properties such as variance, lag-1 autocorrelation and other time-series measures. Interestingly, T CrB showed relatively consistent signatures of increasing early warning indicators, whereas RS Oph did not exhibit similarly robust behaviour across its observed eruption cycles. This motivated me to investigate the possible physical mechanisms behind these differences using statistical analysis and accretion-rate toy models.
I have also worked on thermonuclear burning in accreting white dwarfs using MESA, particularly investigating the influence of accretion-disc instabilities on nuclear burning and recurrent nova cycles. My work involved studying how variations in accretion histories can affect thermonuclear runaways and the evolution of recurrent nova systems.
Scientific Interests
