Rao SuvratHamburg University | UHH · Hamburg Observatory
Rao Suvrat
Doctor of Science
About
16
Publications
2,547
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81
Citations
Introduction
Doctoral graduate with an affinity for interdisciplinary research, having experience in data science, gravitational wave astronomy and exoplanets.
Additional affiliations
May 2017 - July 2018
Education
July 2014 - August 2019
Publications
Publications (16)
We simulate the response of a Storage Ring Gravitational Wave Observatory (SRGO) to astrophysical millihertz (mHz) gravitational waves (GWs), numerically obtaining its sensitivity curve and optimal choices for some controllable experiment parameters. We also generate synthetic noisy GW data and use Markov Chain Monte Carlo methods to perform parame...
This work for the first time addresses the feasibility of measuring millihertz gravitational waves (mHz GWs) with a storage ring-based detector. While this overall challenge consists of several partial problems, here we focus solely on quantifying design limitations imposed by the kinetic energy and radiated power of circulating ions at relativisti...
This work for the first time addresses the feasibility of measuring millihertz gravitational waves (mHz GWs) with a storage ring-based detector. While this overall challenge consists of several partial problems, here we focus solely on quantifying design limitations imposed by the kinetic energy and radiated power of circulating ions at relativisti...
We simulate the response of a Storage Ring Gravitational-wave Observatory (SRGO) to astrophysical gravitational waves (GWs), numerically obtaining its sensitivity curve, parameter degeneracies, and optimal choices of some controllable experiment parameters. We also generate synthetic noisy GW data and use Markov Chain Monte Carlo (MCMC) methods to...
Winner of the second prize for the "Best Poster Prize".
DOI:https://doi.org/10.1103/PhysRevD.105.069903
A simple model for the cooling of volatile liquids resting in open vessels is formulated, accounting for the heat loss from the exposed liquid surface due to evaporation plus black-body radiation, and from the outer vessel surface due to black-body radiation. Experimental data for water is compared with the model predictions to test its accuracy, a...
Tidal interactions and planetary evaporation processes impact the evolution of close-in star–planet systems. We study the impact of stellar rotation on these processes. We compute the time evolution of star–planet systems consisting of a planet with an initial mass between 0.02 and 2.5 MJup (6 and 800 MEarth) in a quasi-circular orbit with an initi...
![Figure 4: The principle of atom interferometry [46]: blue lines are...](publication/351298818/figure/fig4/AS:1019618026086419@1620107289938/The-principle-of-atom-interferometry-46-blue-lines-are-atoms-in-the-ground-state-red_Q320.jpg)
We report some highlights from the ARIES APEC workshop on ``Storage Rings and Gravitational Waves'' (SRGW2021), held in virtual space from 2 February to 18 March 2021, and sketch a tentative landscape for using accelerators and associated technologies for the detection or generation of gravitational waves.
Tidal interactions and planet evaporation processes impact the evolution of close-in star-planet systems. We study the impact of stellar rotation on these processes. We compute the time evolution of star-planet systems consisting of a planet with initial mass between 0.02 and 2.5 M$_{ Jup}$ (6 and 800 M$_{ Earth}$), in a quasi-circular orbit with a...
Here, we calculate the effects of astrophysical gravitational waves (GWs) on the travel times of proton bunch test masses in circular particle accelerators. We show that a high-precision proton bunch time-tagging detector could turn a circular particle accelerator facility into a GW observatory sensitive to millihertz GWs. We comment on sources of...
Here we calculate the effects of astrophysical gravitational waves (GWs) on the travel times of proton bunch test masses in circular particle accelerators. We show that a high-precision proton bunch time-tagging detector could turn a circular particle accelerator facility into a GW observatory sensitive to millihertz (mHz) GWs. We comment on source...
In this work, we study the concept of quasinormal modes (QNMs) of perturbed spacetime prescriptions in general relativity (GR) and its applications to gravitational wave (GW) astronomy. Specifically, we study the scalar QNMs of a spacetime prescription known as Damour-Solodukhin (DS) spacetime, finding approximate analytical solutions for the same...
When planets are formed from the protoplanetary disk and after the disk has dissipated, the evolution of their orbits is governed by tidal interactions, friction, and gravitational drag, and also by changes in the mass of the star and planet. These interactions may change the initial distribution of the distances between the planets and their host...
When planets are formed from the protoplanetary disk and after the disk has dissipated, the evolution of their orbits is governed by tidal interactions, friction, and gravitational drag, and also by changes in the mass of the star and planet. These interactions may change the initial distribution of the distances between the planets and their host...
Questions
Question (1)
I have noisy data points, where the peak signal-to-noise ratio (PSNR) may sometimes be less than unity (hence, more noise than signal may be present). I am fitting a model with fitting parameters to this noisy data, using MCMC (Markov Chain Monte Carlo) methods. I want to know if using a noise filter on the noisy data points (such as a Wiener filter in real space or a bandpass filter in Fourier space), before doing the MCMC fitting, would cause the 90% HPDI contour (highest posterior density interval) of the joint posterior probability distribution of the fitting parameters to be tighter or wider (precision), and closer or farther away from the true parameter values (accuracy)?
