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Implications of GWTC-3 on primordial black holes from vacuum bubbles
Jibin He, Heling Deng, Yun-Song Piao +1
The population of black holes inferred from the detection of gravitational waves by the LIGO-Virgo-KAGRA Collaboration has revealed interesting features in the properties of black…
Gravitational wave background from mergers of large primordial black holes
Heling Deng
The Peters formula, which tells how the coalescence time of a binary system emitting gravitational radiation is determined by the initial size and shape of the elliptic orbit, is o…
-distortion around stupendously large primordial black holes
Heling Deng
In a variety of mechanisms generating primordial black holes, each black hole is expected to form along with a surrounding underdense region that roughly compensates the black hole…
A possible mass distribution of primordial black holes implied by LIGO-Virgo
Heling Deng
The LIGO-Virgo Collaboration has so far detected around 90 black holes, some of which have masses larger than what were expected from the collapse of stars. The mass distribution o…
Primordial black hole formation by vacuum bubbles II
Heling Deng
The discoveries of LIGO/Virgo black holes in recent years have revitalized the study of primordial black holes. In this work, we investigate a mechanism where primordial black hole…
Spiky CMB distortions from primordial bubbles
Heling Deng
Primordial bubbles that possibly nucleate through quantum tunneling during inflation in a multidimensional potential might have left some relic detectable at the present time. Thes…
Can Light Dark Matter Solve the Core-Cusp Problem?
Heling Deng, Mark P. Hertzberg, Mohammad Hossein Namjoo +1
Recently there has been much interest in light dark matter, especially ultra-light axions, as they may provide a solution to the core-cusp problem at the center of galaxies. Since…