The properties of inside-out assembled galaxies at z < 0.1
| Autor: | Manuel Aravena, Roberto J. Assef, Mirjana Pović, Dejene Zewdie, Asrate Gaulle |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
Star formation media_common.quotation_subject Diagram Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Astrophysics - Astrophysics of Galaxies Galaxy Morphological transformation Space and Planetary Science Sky Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics Data release Astrophysics::Galaxy Astrophysics media_common |
| Zdroj: | Proceedings of the International Astronomical Union. 15:358-360 |
| ISSN: | 1743-9221 1743-9213 |
| DOI: | 10.1017/s1743921320003348 |
| Popis: | In this work, we study the properties of galaxies that are showing the inside-out assembly (which we call inside-out assembled galaxies; IOAGs), with the main aim to understand better their properties and morphological transformation. We analysed a sample of galaxies from the Sloan Digital Sky Survey (SDSS) Data Release 8 (DR8), with stellar masses in the range $\log M_{\star}=10.73-11.03$ $M_{\odot{}}$ at $z < 0.1$, and analyze their location in the stellar mass-SFR and the color-stellar mass diagram. We found that IOAGs have different spectroscopic properties, most of them being classified either as AGN or composite. We found that the majority of our sources are located below the main sequence of star formation in the SFR-stellar mass diagram, and in the green valley or red sequence in the color-stellar mass diagram. We argue that IOAGs seem to correspond to the transition area where the galaxies are moving from star-forming to quiescent, and from the blue cloud to the red sequence and/or to recently quenched galaxies. Comment: 3 pages, 2 figures, Proceedings paper of the IAU symposium "Nuclear Activity in Galaxies Across Cosmic Time" (Ethiopia) accepted to be published under the Cambridge University Press, eds M. Povi\'c, P. Marziani, J. Masegosa, H. Netzer, S. H. Negu, & S. B. Tessema |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|