Detailed Information on Publication Record
2023
SDSS-FIRST-selected interacting galaxies Optical long-slit spectroscopy study using MODS at the LBT
MISQUITTA, Persis, Andreas ECKART, Michal ZAJAČEK and Madeleine YTTERGRENBasic information
Original name
SDSS-FIRST-selected interacting galaxies Optical long-slit spectroscopy study using MODS at the LBT
Authors
MISQUITTA, Persis, Andreas ECKART, Michal ZAJAČEK (703 Slovakia, belonging to the institution) and Madeleine YTTERGREN
Edition
Astronomy and Astrophysics, EDP Sciences, 2023, 0004-6361
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Country of publisher
France
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 6.500 in 2022
RIV identification code
RIV/00216224:14310/23:00134167
Organization unit
Faculty of Science
UT WoS
000945283300004
Keywords in English
galaxies; interactions; active; kinematics and dynamics; starburst; evolution; nuclei
Tags
Tags
International impact, Reviewed
Změněno: 14/7/2023 13:39, Mgr. Marie Šípková, DiS.
Abstract
V originále
Context. In the hierarchical model of evolution of the Universe, galaxy mergers play an important role, especially at high redshifts. Interactions among galaxies appear to be associated with incidences of radio-loudness in quasars and it is of interest to study the galaxies that are in the process of interacting with each other, where there is at least one nucleus that is active in the radio regime.Aims. In order to understand the various processes taking place within colliding galaxies, it is important to study the radio and optical properties of these sources, as well as any possible correlations that might exist. Methods. To this end, we present optical long-slit spectroscopy data for ten pairs of interacting galaxies selected from SDSS-FIRST at redshifts of similar to 0.05, observed using the multi-object double spectrographs at the Large Binocular Telescope.Results. We used line fluxes extracted from the spectra of the nuclear regions of galaxies to plot optical diagnostic diagrams and estimate the masses of the central supermassive black holes, as well as their Eddington ratios. Additionally, we used previously published Effelsberg radio telescope data at 4.85 GHz and FIRST survey data at 1.4 GHz to estimate radio spectral slopes and the radio-loudness parameters for all of the radio-detected sources. We also used WISE data to plot a mid-infrared colour-colour diagram. Conclusions. We see that while the sample of galaxies covers all of the classes on the optical diagnostic diagrams, the sources that are radio-detected fall in the composite or transition region of the diagram. Additionally, we notice a trend of the highest radio-loudness parameter in a pair of interacting galaxies being associated with the galaxy that hosts the more massive central supermassive black hole. We do not see any obvious trends with respect to the radio spectral slope, radio-loudness parameter, and Eddington ratio. With respect to the mid-infrared data of the galaxies detected by WISE, we see that most of them have some type of contribution from star formation, however, two of them seem to have a significant contribution from an AGN as well.
Links
| GF23-04053L, research and development project |
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