Hawking-radiation recoil of microscopic black holes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F21%3A00123278" target="_blank" >RIV/00216224:14310/21:00123278 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2212686421001333?dgcid=rss_sd_all" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2212686421001333?dgcid=rss_sd_all</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.dark.2021.100906" target="_blank" >10.1016/j.dark.2021.100906</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hawking-radiation recoil of microscopic black holes

Popis výsledku v původním jazyce

Hawking radiation would make microscopic black holes evaporate rapidly, which excludes them from many astrophysical considerations. However, it has been argued that the quantum nature of space would alter this behaviour: the temperature of a Planck-size black hole vanishes, and what is left behind is a Planck-mass remnant with the cross-section of approximate to 10(-70) m(2), which makes a direct observation nearly impossible. Such black hole remnants have been identified as possible dark matter candidates. Here, we argue that the final stage of evaporation has a recoil effect that gives them a velocity up to approximate to 10(-1)c. This would lead to a disagreement with the cold dark matter cosmological model unless the primordial black hole formation ceased shortly after the inflation era.

Název v anglickém jazyce

Hawking-radiation recoil of microscopic black holes

Popis výsledku anglicky

Hawking radiation would make microscopic black holes evaporate rapidly, which excludes them from many astrophysical considerations. However, it has been argued that the quantum nature of space would alter this behaviour: the temperature of a Planck-size black hole vanishes, and what is left behind is a Planck-mass remnant with the cross-section of approximate to 10(-70) m(2), which makes a direct observation nearly impossible. Such black hole remnants have been identified as possible dark matter candidates. Here, we argue that the final stage of evaporation has a recoil effect that gives them a velocity up to approximate to 10(-1)c. This would lead to a disagreement with the cold dark matter cosmological model unless the primordial black hole formation ceased shortly after the inflation era.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physics of the Dark Universe

ISSN

2212-6864

e-ISSN

2212-6864

Svazek periodika

34

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

100906

Kód UT WoS článku

000719798900002

EID výsledku v databázi Scopus

2-s2.0-85118984496