Primordial Black Holes

from Bubbles

Heling Deng

1804.10059 with Alex Vilenkin and Masaki Yamada (2018)

Tufts University

1710.02865 with Alex Vilenkin (2017)

1612.03753 with Jaume Garriga and Alex Vilenkin (2016)

1512.01819 by Jaume Garriga, Alex Vilenkin and Jun Zhang (2016)

BH mass distribution

PBH mass function (fraction of CDM in PBH with mass ~ $M$ )

f(M)\equiv \frac{M^2}{\rho_\text{CDM}} \frac{dn}{dM}\propto

f(M)\equiv \frac{M^2}{\rho_\text{CDM}} \frac{dn}{dM}\propto

M_*^{-1/2},\ \ \ M< M_*

M_*^{-1/2},\ \ \ M< M_*

M^{-1/2},\ \ \ M> M_*

M^{-1/2},\ \ \ M> M_*

\{

LIGO BH

$f(M\sim 30\ M_\odot) \sim 10^{-3} \ \to$ merger rate for LIGO events

1603.08338 by Sasaki et al. (2016)

M_* \sim M_\odot

M_* \sim M_\odot

\to \ f(M\sim30\ M_\odot) \sim 10^{-3}

\to \ f(M\sim30\ M_\odot) \sim 10^{-3}

SMBH

M_* < M_{\text{seed}} \sim 10^3 M_\odot,

M_* < M_{\text{seed}} \sim 10^3 M_\odot,

\Gamma \gtrsim 10^{-17}

\Gamma \gtrsim 10^{-17}

\to \ n_M \sim 10^{-1} \text{Mpc}^{-3}

\to \ n_M \sim 10^{-1} \text{Mpc}^{-3}

$\mu$ distortion

spiky distribution

\mu_\text{max} \sim 10^6 \Gamma^{4/3}

\mu_\text{max} \sim 10^6 \Gamma^{4/3}

Primordial Black Holes from Bubbles Heling Deng 1804.10059 with Alex Vilenkin and Masaki Yamada (2018) Tufts University 1710.02865 with Alex Vilenkin (2017) 1612.03753 with Jaume Garriga and Alex Vilenkin (2016) 1512.01819 by Jaume Garriga, Alex Vilenkin and Jun Zhang (2016)

Primordial Black Holes

from Bubbles

BH mass

BH mass distribution

PBH constraints

LIGO BH

SMBH

$\mu$ distortion

PBHs from Bubbles

PBHs from Bubbles

Heling Deng

Primordial Black Holes

from Bubbles

PBHs from Bubbles

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