Illuminating dark objects with dark matter lampshades

detalle del documento

IDENTIFICACIÓN

oai:arXiv.org:2409.08322

Tema

High Energy Physics - Phenomenolog... Astrophysics - Cosmology and Nonga...

Autor

Bramante, Joseph Diamond, Melissa D. Kim, J. Leo

Categoría

ciencias: astrofísica

Año

2024

fecha de cotización

18/9/2024

Palabras clave

objects

Métrico

Resumen

We demonstrate a new technique to search for dark compact objects.

When dark matter comprising a dark compact object interacts with photons, the compact object can disperse light traveling though it.

As these objects pass between the Earth and a distant star, they act as "lampshades" that dim the star.

We examine how dimming effects from clumps of dark matter in the galaxy could be searched for in microlensing surveys, which measure the brightness of stars as a function of time.

Using the EROS-2 and OGLE surveys, we show that a dimming analysis of existing data can be used to constrain dark sectors, and could be used to discover dark matter in compact objects.

;Comment: 12 pages, 6 figures

Bramante, Joseph,Diamond, Melissa D.,Kim, J. Leo, 2024, Illuminating dark objects with dark matter lampshades