1 code implementation • 23 Oct 2023 • Digvijay Wadekar, Tejaswi Venumadhav, Ajit Kumar Mehta, Javier Roulet, Seth Olsen, Jonathan Mushkin, Barak Zackay, Matias Zaldarriaga
The templates used in current searches in the LIGO-Virgo-Kagra (LVK) data model the dominant quadrupole mode $(\ell, m)=(2, 2)$ of the signals, and omit sub-dominant higher-order modes (HM) such as $(\ell, m)=(3, 3)$, $(4, 4)$, which are predicted by general relativity.
1 code implementation • 15 Apr 2019 • Tejaswi Venumadhav, Barak Zackay, Javier Roulet, Liang Dai, Matias Zaldarriaga
The most secure new event, GW170121 ($p_{\rm astro} > 0. 99$), is also notable due to its inferred negative value of $\chi_{\rm eff}$, which is inconsistent with being positive at the $\approx 95. 8\%$ confidence level.
High Energy Astrophysical Phenomena Cosmology and Nongalactic Astrophysics Instrumentation and Methods for Astrophysics General Relativity and Quantum Cosmology
1 code implementation • 27 Feb 2019 • Barak Zackay, Tejaswi Venumadhav, Liang Dai, Javier Roulet, Matias Zaldarriaga
We report a new binary black hole merger in the publicly available LIGO First Observing Run (O1) data release.
High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics General Relativity and Quantum Cosmology
1 code implementation • 6 Apr 2018 • Tejaswi Venumadhav, Liang Dai, Alexander Kaurov, Matias Zaldarriaga
We also find that the effect is more dramatic in non-standard scenarios that either enhance the radio background above the CMB or invoke new physics to cool the gas in order to explain the EDGES results.
Cosmology and Nongalactic Astrophysics
