Early-type galaxies with neutral hydrogen in the Virgo cluster from the ALFALFA survey
S. di Serego Alighieri, M. Grossi, C. Giovanardi, S. Pellegrini, G., Trinchieri
TL;DR
This study analyzes the neutral hydrogen content in early-type galaxies within the Virgo cluster using ALFALFA survey data, including spectral analysis and multi-phase interstellar medium imaging.
Contribution
It extends previous work by providing detailed spectra, exploring lower S/N sources, and comparing multi-phase interstellar medium images of M86.
Findings
Detection of neutral hydrogen in several early-type galaxies
Identification of lower S/N sources through deeper data analysis
Multi-phase interstellar medium imaging of M86
Abstract
We extend our published work on the neutral hydrogen content of early-type galaxies in the Virgo cluster using the catalogue of detected sources from the ALFALFA survey, by showing the 21cm spectra of all the detected galaxies and discussing a deeper analysis of the ALFALFA datacubes, searching for lower S/N sources. A view of the multiphase interstellar medium of M86 is also presented, by comparing images of the cold, warm and hot phases.
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