Optical/NIR stellar absorption and emission-line indices from luminous infrared galaxies
We analyse a set of optical-to-near-infrared long-slit nuclear spectra of 16 infrared-luminous spiral galaxies. All of the studied sources present H2 emission...
Optical/X-ray/radio view of Abell 1213: A galaxy cluster with anomalous diffuse radio emission
Context. Abell 1213, a low-richness galaxy system, is known to host an anomalous radio halo detected in data of the Very Large Array (VLA). It is an outlier...
Optically Faint Massive Balmer Break Galaxies at z > 3 in the CANDELS/GOODS Fields
We present a sample of 33 Balmer break galaxies (BBGs) selected as Hubble Space Telescope/F160W dropouts in the deepest CANDELS/GOODS fields (H ≳ 27.3 mag) but...
Optically Thin Irregularities in the Penumbrae of Sunspots
Different estimates of the vertical gradient of magnetic field inclination in penumbrae disagree by 2 orders of magnitude. This disagreement may be resolved if...
Optimal 1D Ly α forest power spectrum estimation - III. DESI early data
The 1D power spectrum P 1D of the Ly α forest provides important information about cosmological and astrophysical parameters, including constraints on warm dark...
Optimal Filter Systems for Photometric Redshift Estimation
In the coming years, several cosmological surveys will rely on imaging data to estimate the redshift of galaxies, using traditional filter systems with 4-5...
Optimising and comparing source-extraction tools using objective segmentation quality criteria
Context. With the growth of the scale, depth, and resolution of astronomical imaging surveys, there is increased need for highly accurate automated detection...
To asses stability against 1/f noise, the Low Frequency Instrument (LFI) on-board the Planck mission will acquire data at a rate much higher than the data rate...