SN 2025aico is a low-luminosity Type IIb from a compact He star (M_env≈0.01 M⊙, R_env≈6–10 R⊙) with M_Ni≈0.033 M⊙, M_ej≈2.8 M⊙ and weak-to-moderate 56Ni mixing.
Cosmicflows-4: The Catalog of ~10000 Tully-Fisher Distances
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We present the distances of 9792 spiral galaxies lying within 15,000 km/s using the relation between luminosity and rotation rate of spiral galaxies. The sample is dominantly, but not exclusively, drawn from galaxies detected in the course of the ALFALFA HI survey with the Arecibo Telescope. Relations between \hi line widths and luminosity are calibrated at SDSS u, g, r, i, z bands and WISE W1 and W2 bands. By exploiting secondary parameters, particularly color indices, we address discrepancies between measured distances at different wave bands with unprecedented detail. We provide a catalog that includes reduced kinematic, photometric, and inclination parameters. We also describe a machine learning algorithm, based on the random forest technique that predicts the dust attenuation in spirals lacking infrared photometry. We determine a Hubble Constant value of H0 = 75.1+-0.2 (stat.), with potential systematics up to +-3 km/s/Mpc.
fields
astro-ph.SR 1years
2026 1verdicts
ACCEPT 1representative citing papers
citing papers explorer
-
SN 2025aico: Early observations of a faint Type IIb supernova with a low-mass envelope
SN 2025aico is a low-luminosity Type IIb from a compact He star (M_env≈0.01 M⊙, R_env≈6–10 R⊙) with M_Ni≈0.033 M⊙, M_ej≈2.8 M⊙ and weak-to-moderate 56Ni mixing.