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Probing dark matter halo profiles with multi-band observations of gravitational waves
Divya Tahelyani, Arpan Bhattacharyya, Anand S. Sengupta
In this paper, we evaluate the potential of multiband gravitational wave observations from a deci-Hz space-based detector and third-generation ground-based gravitational wave detec…
Template bank to search for exotic gravitational wave signals from astrophysical compact binaries
Abhishek Sharma, Soumen Roy, Anand S. Sengupta
Modeled searches of gravitational wave signals from compact binary mergers rely on template waveforms determined by the theory of general relativity (GR). Once a signal is detected…
Does the speed of gravitational waves depend on the source velocity?
Rajes Ghosh, Sreejith Nair, Lalit Pathak +2
The second postulate of special relativity states that the speed of light in vacuum is independent of the emitter's motion. The test of this postulate so far remains unexplored for…
Beyond general relativity: designing a template-based search for exotic gravitational wave signals
Harsh Narola, Soumen Roy, Anand S. Sengupta
Accurate waveform models describing the complete evolution of compact binaries are crucial for the maximum likelihood detection framework, testing the predictions of General Relati…
Random projections in gravitational-wave searches from compact binaries II: efficient reconstruction of the detection statistic
Amit Reza, Anirban Dasgupta, Anand S. Sengupta
Low-latency gravitational wave search pipelines such as GstLAL take advantage of low-rank factorization of the template matrix via singular value decomposition (SVD). With unpreced…
The SPIIR online coherent pipeline to search for gravitational waves from compact binary coalescences
Qi Chu, Manoj Kovalam, Linqing Wen +16
This paper presents the SPIIR pipeline used for public alerts during the third advanced LIGO and Virgo observation run (O3 run). The SPIIR pipeline uses infinite impulse response (…