Results 281 to 290 of about 279,672 (369)

Exploring Dark Photon Production and Kinetic Mixing Constraints in Heavy‐Ion Collisions

Astronomische Nachrichten, EarlyView.
ABSTRACT Vector U‐bosons, often referred to as “dark photons,” are potential candidates for mediating dark matter interactions. In this study, we outline a procedure to derive theoretical constraints on the upper bound of the kinetic mixing parameter ϵ2MU$$ {\upvarepsilon}^2\left({M}_U\right) $$ using dilepton data from heavy‐ion from SIS to RHIC ...
Adrian William Romero Jorge, Elena Bratkovskaya, Taesoo Song, Laura Sagunski   +3 more
wiley   +1 more source

Imprints of massive black-hole binaries on neighbouring decihertz gravitational-wave sources. [PDF]

Nat Astron
Stegmann J, Zwick L, Vermeulen SM, Antonini F, Mayer L.   +4 more
europepmc   +1 more source

Strong perturbation of a super-virial Magellanic circum-galactic medium

, 2023
Locatelli N, Ponti G, Merloni A, Zheng X, Dennerl K, Haberl F, Maitra C, Sanders J, Sasaki M, Vazza F.   +9 more
europepmc   +1 more source

LHAASO and Galactic cosmic rays. [PDF]

Innovation (Camb), 2022
Yang R.
europepmc   +1 more source

H2 dark matter in the galactic halo from EGRET

, 1999
P. M. W. Kalberla, Yu. A. Shchekinov, R.‐J. Dettmar   +2 more
openalex   +2 more sources

A Slowly Pulsating Run‐Away B Star at High Galactic Latitude Ejected From a Spiral Arm

Astronomische Nachrichten, EarlyView.
ABSTRACT We report the discovery of the young B6 V run‐away star LAMOST J083323.18 + 430825.4, 2.5 kpc above the Galactic plane. Its atmospheric parameters and chemical composition are determined from LAMOST spectra, indicating normal composition. Effective temperature (Teff$$ {T}_{\mathrm{eff}} $$ = 14,500$$ \mathrm{14,500} $$ K) and gravity (logg ...
Ulrich Heber, Maximilian Halenke, Aakash Bhat, Veronika Schaffenroth   +3 more
wiley   +1 more source

Milky Way could invalidate the hypothesis of exotic matter and favor a gravitomagnetic solution to explain dark matter. [PDF]

Sci Rep
Le Corre S.
europepmc   +1 more source

Direct limits for scalar field dark matter from a gravitational-wave detector. [PDF]

Nature, 2021
Vermeulen SM, Relton P, Grote H, Raymond V, Affeldt C, Bergamin F, Bisht A, Brinkmann M, Danzmann K, Doravari S, Kringel V, Lough J, Lück H, Mehmet M, Mukund N, Nadji S, Schreiber E, Sorazu B, Strain KA, Vahlbruch H, Weinert M, Willke B, Wittel H.   +22 more
europepmc   +1 more source

Metal-rich globular clusters in the galactic disk: new age determinations and the relation to halo clusters

, 1998
M. Salaris, Achim Weiß
openalex   +2 more sources

Dark Energy From the Gravitational Wave Background With Scalar Field Dark Matter

Astronomische Nachrichten, EarlyView.
ABSTRACT Recent observational results, such as those from pulsar timing arrays (PTA), suggest a low‐frequency Gravitational Wave Background (GWB) permeates our universe. This opens the possibility that gravitational waves could span a broader spectrum, potentially impacting cosmological scales.
Edwin L. Pérez‐Ochoa, Tonatiuh Matos
wiley   +1 more source