Neutron star quantum death by small black holes

Giffin, Pierce; Lloyd, John; McDermott, Samuel D.; Profumo, Stefano

doi:10.1103/physrevd.105.123030

Cited by 13 publications

(2 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Once the number of captured DM particles satisfies the BH formation criterion, dark core collapse initiates, and a tiny BH forms inside the stellar object. This tiny BH accumulates matter from the host, and eventually swallows the host to a comparable mass BH in a very short timescale [29][30][31][32]. Such BHs are known as transmuted black holes (TBHs), and depending on the mass of the progenitors, TBHs can naturally be sub-Chandrasekhar, or even sub-solar.…”

Section: Formation Of Low Mass Transmuted Black Holesmentioning

confidence: 99%

Mergers as a probe of particle dark matter

Ray

2023

SciPost Phys. Proc.

View full text Add to dashboard Cite

Black holes below Chandrasekhar mass limit (1.4 M_{\odot}M☉) can not be produced via any standard stellar evolution. Recently, gravitational wave experiments have also discovered unusually low mass black holes whose origin is yet to be known. We propose a simple yet novel formation mechanism of such low mass black holes. Non-annihilating particle dark matter, owing to their interaction with stellar nuclei, can gradually accumulate inside compact stars, and eventually swallows them to low mass black holes, ordinarily impermissible by the Chandrasekhar limit. We point out several avenues to test this proposal, concentrating on the cosmic evolution of the binary merger rates.

show abstract

Section: Formation Of Low Mass Transmuted Black Holesmentioning

confidence: 99%

Mergers as a probe of particle dark matter

Ray

2023

SciPost Phys. Proc.

View full text Add to dashboard Cite

show abstract

“…Distinguishing characteristics of these distinct classes may be the value of their spins, as discussed briefly in Section 3.1. The second aspect is related to distinguishing LBHs produced by asteroid-mass PBHs from LBHs created by other possible DM candidates (Bramante et al 2018;Takhistov et al 2021;Giffin et al 2022), or in other scenarios, e.g., in collapsing supramassive NSs (Falcke & Rezzolla 2014). One may expect different conversion processes, resulting in different final features, such as objects' masses, spins, and their EM emission (see e.g., Abramowicz et al 2016), which may in turn be related to the possible existence of exotic objects such as gravastars, boson stars, or naked singularities (see Cardoso & Pani 2019 for a review).…”

Section: Calculating the Number Of Lbh Eventsmentioning

confidence: 99%

A Robust Test of the Existence of Primordial Black Holes in Galactic Dark Matter Halos

Abramowicz

Bejger

Udalski

et al. 2022

ApJL

View full text Add to dashboard Cite

If very low mass primordial black holes (PBH) within the asteroid/moon-mass range indeed reside in galactic dark matter halos, they must necessarily collide with galactic neutron stars (NSs). These collisions must, again necessarily, form light black holes (LBHs) with masses of typical NSs, M LBH ≈ 1–2 M ⊙. LBHs may be behind events already detected by ground-based gravitational-wave detectors (GW170817, GW190425, and others such as a mixed stellar black hole–NS-mass event GW191219_163120), and most recently by microlensing (OGLE-BLG-2011-0462). Although the status of these observations as containing LBHs is not confirmed, there is no question that gravitational-wave detectors and microlensing are in principle and in practice capable of detecting LBHs. We have calculated the creation rate of LBHs resulting from these light primordial black hole (PBH) collisions with NSs. On this basis, we claim that if improved gravitational-wave detectors and microlensing statistics of the LBH events would indicate that the number of LBHs is significantly lower that what follows from the calculated creation rate, then this would be an unambiguous proof that there is no significant light PBH contribution to the galactic dark matter halos. Otherwise, if observed and calculated numbers of LBHs roughly agree, then the hypothesis of primordial black hole existence gets strong observational support, and in addition their collisions with NSs may be considered a natural creation channel for the LBHs, solving the problem of their origin, as it is known that they cannot be a product of standard stellar evolution.

show abstract

Dark matter in compact stars

Bramante,

Raj

2024

Physics Reports

View full text Add to dashboard Cite

Neutron star quantum death by small black holes

Cited by 13 publications

References 44 publications

Mergers as a probe of particle dark matter

Mergers as a probe of particle dark matter

A Robust Test of the Existence of Primordial Black Holes in Galactic Dark Matter Halos

Dark matter in compact stars

Contact Info

Product

Resources

About