Finding White Dwarfs' Hidden Companions Using an Unsupervised Machine Learning Technique
White dwarfs (WD) with main-sequence (MS) companions are crucial probes of stellar evolution. However, due to the significant difference in their luminosities...
Fine structure and dynamics in a light bridge inside a solar pore
A photometric analysis of the sub-structure of a granular light bridge in a large solar pore is performed. The data consist of a 66 min time series of white...
Fine structure in the Sigma Orionis cluster revealed by Gaia DR3
Context. Sigma Orionis is an open cluster in the nearest giant star formation site - Orion. Its youth (3−5 Myr), low reddening, and relative vicinity make it an...
Fine structure of wave motions in the solar photosphere: Observations and theory
Spectral observations of the 639.361-nm FeI line at the center of the quiet solar disk with high spatial (0.4″) and temporal (10 s) resolution are used to...
Fine-scale opposite-polarity magnetic fields in a solar plage revealed by integral field spectropolarimetry
Context. Plages are small concentrations of strong, nearly vertical magnetic fields in the solar photosphere that expand with height. A high spatial and...
Fingerprints of stellar populations in the near-infrared: an optimized set of spectral indices in the JHK bands 0
Stellar population studies provide unique clues to constrain galaxy formation models. So far, detailed studies based on absorption line strengths have mainly...
FIR colours and SEDs of nearby galaxies observed with Herschel
We present infrared colours (in the 25-500 μm spectral range) and UV to radio continuum spectral energy distributions of a sample of 51 nearby galaxies observed...
FIR Measurements of Lyα Emitters at z <~ 1.0: Dust Attenuation from PACS-Herschel
One remaining open question regarding the physical properties of Lyα emitters (LAEs) is their dust content and evolution with redshift. The variety of results...