Astron. J., 159, 167-167 (2020/April-0)
The AMUSING++ nearby galaxy compilation. I. Full sample characterization and galactic-scale outflow selection.
LOPEZ-COBA C., SANCHEZ S.F., ANDERSON J.P., CRUZ-GONZALEZ I., GALBANY L., RUIZ-LARA T., BARRERA-BALLESTEROS J.K., PRIETO J.L. and KUNCARAYAKTI H.
Abstract (from CDS):
We present here AMUSING++: the largest compilation of nearby galaxies observed with the MUSE integral-field spectrograph so far. This collection consists of 635 galaxies from different MUSE projects covering the redshift interval 0.0002 < z < 0.1. The sample and its main properties are characterized and described here. It includes galaxies of almost all morphological types, with a good coverage in its color-magnitude diagram, within the stellar mass range between 108 and 1012 M☉, and with properties resembling those of a diameter-selected sample. The AMUSING++ sample is, therefore, suitable for studying, with unprecendented detail, the properties of nearby galaxies at global and local scales, providing us with more than 50 million individual spectra. We use this compilation to investigate the presence of galactic outflows. We exploit the use of combined emission-line images to explore the shape of the different ionized components and the distribution along classical diagnostic diagrams to disentangle the different ionizing sources across the optical extension of each galaxy. We use the cross-correlation function to estimate the level of symmetry of the emission lines as an indication of the presence of shocks and/or active galactic nuclei. We uncovered a total of 54 outflows, comprising ∼8% of the sample. A large number of the discovered outflows correspond to those driven by active galactic nuclei (∼60%), suggesting some bias in the selection of our sample. No clear evidence was found that outflow host galaxies are highly star-forming, and outflows appear to be found within all galaxies around the star-formation sequence.
© 2020. The American Astronomical Society. All rights reserved.
Catalogs - Interstellar medium - Galactic winds
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<Available at CDS (J/AJ/159/167): table2.dat table3.dat>
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