With the next generation of ground-based interferometers (e.g. the Einstein Telescope), along with the space-based detectors (e.g. LISA), a large volume of space and and a wide range of frequencies will be opened up to GW astronomy in the coming years. It is therefore prudent to investigate sources that have not yet received significant consideration. I have embarked on multi-year projects with the goal of exploring exotic copact object (e.g. bosons stars and ergostars --neutron stars with ergergions) to determine what they would look like to a GW detector and what are their potential EM signatures.
Locating ergostar models in parameter space
Antonios Tsokaros, Milton Ruiz, Stuart L. Shapiro
Phys. Rev. D 101 (2020) 6, 064069 • e-Print:
2002.01473 [astro-ph.HE]
Dynamically stable ergostars exist: General relativistic models and simulations
Antonios Tsokaros, Milton Ruiz, Stuart L. Shapiro, Koji Uryu
Phys. Rev. Lett. 123 (2019) 23, 231103 • e-Print:
1907.03765 [astro-ph.HE]
Induced scalarization in boson stars and scalar gravitational radiationDynamic transition to spontaneous scalarization in boson stars
Milton Ruiz, Juan C Degollado, Miguel Alcubierre, Dario Nunez, Marcelo Salgado
Phys. Rev. D 86 (2012) 12, 104044 • e-Print:
1207.6142 [astro-ph.HE]
Dynamic transition to spontaneous scalarization in boson stars
Miguel Alcubierre, Juan C Degollado, Dario Nunez, Milton Ruiz, Marcelo Salgado
Phys. Rev. D 81 (2010) 12, 124018 • e-Print:
1003.4767 [astro-ph.HE]