The 1D power spectrum P1D of the Ly α forest provides important information about cosmological and astrophysical parameters, including constraints on warm dark matter models, the sum of the masses of the three neutrino species, and the thermal state of the intergalactic medium. We present the first measurement of P1D with the quadratic maximum
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Optimal 1D Ly α forest power spectrum estimation - III. DESI early dataKaraçaylı, Naim Göksel et al.32024Citations0
Strategies for optimal sky subtraction in the low surface brightness regime
The low surface brightness (LSB) regime (μg ≳ 26 mag arcsec-2) comprises a vast, mostly unexplored discovery space, from dwarf galaxies to the diffuse interstellar medium. Accessing this regime requires precisely removing instrumental signatures and light contamination, including, most critically, night sky emission. This is not trivial, as faintWatkins, Aaron E. et al.
PRIMASS near-infrared study of the Erigone collisional family
Past analyses of spectral properties of the inner-belt primitive families in visible wavelengths have uncovered the possible existence of two compositional groups: Erigone-like (highly hydrated) and Polana-like (nearly anhydrous) (Morate et al., 2018). We explore the spectral properties of the Erigone asteroid family in the near-infrared to probeHarvison, Brittany et al.
Constraints on axion-like particles with the Perseus Galaxy Cluster with MAGIC
Axion-like particles (ALPs) are pseudo-Nambu-Goldstone bosons that emerge in various theories beyond the standard model. These particles can interact with high-energy photons in external magnetic fields, influencing the observed gamma-ray spectrum. This study analyzes 41.3 h of observational data from the Perseus Galaxy Cluster collected with theAbe, H. et al.
An ESPRESSO view of the HD 189733 system. Broadband transmission spectrum, differential rotation, and system architecture
Context. The development of state-of-the-art spectrographs has ushered in a new era in the detection and characterization of exoplanetary systems. The astrophysical community now has the ability to gain detailed insights into the composition of atmospheres of planets outside our Solar System. In light of these advancements, several new methods haveCristo, E. et al.
An ultraviolet spectral study of fullerene-rich planetary nebulae
Several planetary nebulae (PNe) have been found to contain both polycyclic aromatic hydrocarbon (PAH-like) species and fullerenes (C60) distinguished by their mid-infrared emission. Previous laboratory and astronomical studies suggest that the formation of both species could be related to the decomposition, by photochemical processing, ofGómez-Muñoz, M. A. et al.