Dissecting galaxy triplets in the Sloan Digital Sky Survey Data Release 10: I. Stellar populations and emission line analysis
arXiv:1604.02149 · doi:10.1093/mnras/stw816
Abstract
We identify isolated galaxy triplets in a volume-limited sample from the Sloan Digital Sky Survey Data Release 10. Our final sample has 80 galaxy systems in the redshift range 0.04z0.1, brighter than . Spectral synthesis results and WHAN and BPT diagnostic diagrams were employed to classify the galaxies in these systems as star-forming, active nuclei, or passive/retired. Our results suggest that the brightest galaxies drive the triplet evolution, as evidenced by the strong correlations between properties as mass assembly and mean stellar population age with triplet properties. Galaxies with intermediate luminosity or the faintest one within the triplet seem to play a secondary role. Moreover, the relation between age and stellar mass of galaxies is similar for these galaxies but different for the brightest galaxy in the system. Most of the triplet galaxies are passive or retired, according to the WHAN classification. Low mass triplets present different fractions of WHAN classes when compared to higher mass triplets. A census of WHAN class combinations shows the dominance of star-forming galaxies in low mass triplets while retired and passive galaxies prevail in high-mass systems. We argue that these results suggest that the local environment, through galaxy interactions driven by the brightest galaxy, is playing a major role in triplet evolution.
arXiv commentaccepted in MNRAS
References in corpus (31)
- Stellar population synthesis at the resolution of 2003
- The Seventh Data Release of the Sloan Digital Sky Survey
- The Host Galaxies of AGN
- Observational Evidence of AGN Feedback
- Theoretical Modeling of Starburst Galaxies
- Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Main Galaxy Sample
- New Insight on Galaxy Formation and Evolution from Keck Spectroscopy of the Hawaii Deep Fields
- The Tenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Apache Point Observatory Galactic Evolution Experiment
- Differential Galaxy Evolution in Cluster and Field Galaxies at z=0.3
- A comprehensive classification of galaxies in the SDSS: How to tell true from fake AGN?
- Alternative diagnostic diagrams and the "forgotten" population of weak line galaxies in the SDSS
- A Map of the Universe
- Photometric Response Functions of the SDSS Imager
- The history of star-forming galaxies in the Sloan Digital Sky Survey
- Multiscale Phenomenology of the Cosmic Web
- Galaxy Pairs in the 2dF Survey I. Effects of Interactions in the Field
- Recovering galaxy star formation and metallicity histories from spectra using VESPA
- Semi-empirical analysis of Sloan Digital Sky Survey galaxies: II. The bimodality of the galaxy population revisited
- Photometric Properties of Void Galaxies in the Sloan Digital Sky Survey
- An Imaging and Spectroscopic Survey of Galaxies Within Prominent Nearby Voids. I. The Sample and Luminosity Distribution
- Galaxy interactions I: Major and minor mergers
- A probabilistic formulation for Empirical Population Synthesis: Sampling methods and tests
- Galaxy And Mass Assembly (GAMA): The Life and Times of L* Galaxies
- Retired galaxies: not to be forgotten in the quest of the star formation -- AGN connection
- Photometric redshifts and K-corrections for Sloan Digital Sky Survey Seven Data Release
- Satellite number density profiles of primary galaxies in the 2dFGRS
- The environments and clustering properties of 2dFGRS-selected starburst galaxies
- The zCOSMOS-Bright survey: the clustering of early and late galaxy morphological types since z~1
- Galaxy triplets in Sloan Digital Sky Survey Data Release 7: II. A connection with compact groups?
- Galaxy triplets in Sloan Digital Sky Survey Data Release 7 - III. Analysis of Configuration and Dynamics
- Comparing galaxy populations in compact and loose groups of galaxies III. Effects of environment on star formation
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- AGNs in Small Galaxy Systems: comparing the main properties of active objects in pairs, triplets and groups
- Understanding the role of morphology and environment on the dynamical evolution of isolated galaxy triplets
- SIT 45: An interacting, compact, and star-forming isolated galaxy triplet
- The galaxy environment in GAMA G3C groups using the Kilo Degree Survey Data Release 3
- Gravitational interaction signatures in isolated galaxy triplet systems: a photometric analysis