The GEODE mass function and its astrophysical implication.

Kevin Croker (UH: University of Hawaii), Kurtis Nishimura , D. Farrah61
Estimated H-index: 61
We consider the observational consequences of replacing all black holes (BHs) with a class of non-singular solutions that mimic BHs but with Dark Energy (DE) interiors; GEneric Objects of Dark Energy (GEODEs). We focus on the BH mass function and chirp-mass redshift distribution of mergers visible to gravitational wave observatories. We incorporate the GEODE blueshift into an initially Salpeter stellar remnant distribution, and model the binary population by evolving synthesized binary remnant distributions, published before LIGO's first measurements. We find that a GEODE produced between 20 < z < 40 and observed at z \sim 7 will have its initial mass amplified by 18-134\times This can relieve tension between accretion-only growth models and the inferred masses of BHs in quasars at z \gtrsim 6 Moreover, we find that merger rates of GEODE binaries increase by a factor of \simphantom{}2\timesrelative to classical BHs. The resulting GEODE mass function is consistent with the most recent LIGO constraints at < 0.5\sigma In contrast, a Salpeter stellar distribution that evolves into classical remnants is in tension at \gtrsim 2\sigma This agreement occurs without low-metallicity regions, abnormally large progenitor stars, novel binary formation channels, or primordial object formation at extreme rates. In particular, we find that solar metallicity progenitors, which produce 1.1-1.8\mathrm{M}_\odotremnants, overlap with many LIGO observations when evolved as GEODEs.
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Published on Jan 1, 2019
Andreas Öchsner23
Estimated H-index: 23
(Esslingen University of Applied Sciences),
Resam Makvandi4
Estimated H-index: 4
(Otto-von-Guericke University Magdeburg)
This chapter summarizes a few basic operations of the computer algebra system Maxima, as well as the internet links to download the software. The few topics covered are basic arithmetics, definition of variables and functions. For a comprehensive introduction, the reader is referred to the available literature.
Published on Nov 30, 2018in arXiv: High Energy Astrophysical Phenomena
Brant Abbott94
Estimated H-index: 94
D. Rosińska35
Estimated H-index: 35
+ 1145 AuthorsD. C. Coyne51
Estimated H-index: 51
We present the results from three gravitational-wave searches for coalescing compact binaries with component masses above 1\mathrm{M}_\odotduring the first and second observing runs of the Advanced gravitational-wave detector network. During the first observing run (O1), from September 12^\mathrm{th} 2015 to January 19^\mathrm{th} 2016, gravitational waves from three binary black hole mergers were detected. The second observing run (O2), which ran from November 30^\mathrm{th} 2016 to...
N. Aghanim67
Estimated H-index: 67
L. Polastri12
Estimated H-index: 12
+ 175 AuthorsSabino Matarrese81
Estimated H-index: 81
We present cosmological parameter results from the final full-mission Planck measurements of the CMB anisotropies. We find good consistency with the standard spatially-flat 6-parameter \LambdaDM cosmology having a power-law spectrum of adiabatic scalar perturbations (denoted "base \LambdaDM" in this paper), from polarization, temperature, and lensing, separately and in combination. A combined analysis gives dark matter density \Omega_c h^2 = 0.120\pm 0.001 baryon density $\Omega_b h^2 =...
Published on Nov 27, 2017in Physical Review D4.37
Elisa Maggio2
Estimated H-index: 2
Paolo Pani33
Estimated H-index: 33
Valeria Ferrari27
Estimated H-index: 27
Gravitational-wave astronomy can give us access to the structure of black holes, potentially probing microscopic or even Planckian corrections at the horizon scale, as those predicted by some quantum-gravity models of exotic compact objects. A generic feature of these models is the replacement of the horizon by a reflective surface. Objects with these properties are prone to the so-called ergoregion instability when they spin sufficiently fast. We investigate in detail a simple model consisting ...
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