Journal article
Optical spectroscopy of young tidal objects around two interacting galaxy pairs
Monthly notices of the Royal Astronomical Society, Vol.480(2), pp.2719-2725
10/01/2018
DOI: 10.1093/mnras/sty2042
Abstract
We present Gemini Multi-Object Spectrograph spectra of HI-rich tidal features located around the outskirts of two interacting galaxy pairs, NGC 3166/9 and NGC 4725/47. These follow-up observations are part of a multiwavelength campaign to study the properties and frequency of tidal dwarf galaxies (TDGs) in group environments. Based on the calculated gas-phase metallicity and redshift, in addition to the previously measured H I( )and stellar properties, we have confirmed the tidal origins of TDG candidate AGC 208457, which has emerged from the tidal debris of an interaction between the NGC 3166/9 galaxy pair. By comparing H I and optical recessional velocities, we have also confirmed a physical association of the gaseous knots and star clusters embedded in the metal-rich tidal tail of NGC 4747.
Details
- Title: Subtitle
- Optical spectroscopy of young tidal objects around two interacting galaxy pairs
- Creators
- K. Lee-Waddell - Australia Telescope National FacilityJ. P. Madrid - Australia Telescope National FacilityK. Spekkens - Royal Military College of CanadaC. J. Donzelli - Argentine National ObservatoryB. S. Koribalski - Australia Telescope National FacilityP. Serra - Osservatorio Astronomico di CagliariJ. Cannon - Macalester College
- Resource Type
- Journal article
- Publication Details
- Monthly notices of the Royal Astronomical Society, Vol.480(2), pp.2719-2725
- DOI
- 10.1093/mnras/sty2042
- ISSN
- 0035-8711
- eISSN
- 1365-2966
- Publisher
- Oxford Univ Press
- Number of pages
- 7
- Grant note
- CONICYT (Chile); Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) GN-2016B-Q-24 / NSF; National Science Foundation (NSF) Ministerio da Ciencia, Tecnologia e Inovacao (Brazil) National Science Foundation (United States); National Science Foundation (NSF) National Research Council (Canada) Ministerio de Ciencia, Tecnologia e Innovacion Productiva (Argentina)
- Language
- English
- Date published
- 10/01/2018
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627327802771
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