Conference proceeding
The frequency and properties of young tidal dwarf galaxies in nearby groups
FORMATION AND EVOLUTION OF GALAXY OUTSKIRTS, Vol.11(S321), pp.238-240
IAU Symposium Proceedings Series
03/01/2016
DOI: 10.1017/S1743921316009066
Abstract
We present the results of a multi-wavelength investigation of the dwarf galaxy populations in three interacting galaxy groups: NGC 871/6/7, NGC 3166/9, NGC 4725/47. Using degree-scale Giant Metrewave Radio Telescope Hi mosaics and deep optical photometry from the Canada-France-Hawaii Telescope, we measured the Hi and stellar properties of the gas-rich low-mass group members to classify each one as a classical dwarf galaxy, a short-lived tidal knot or a tidal dwarf galaxy (TDG). Our observations detect several dwarf irregulars and various tidal knots. We identify four potentially long-lived tidal objects in the three groups, implying that TDGs are not readily produced. The tidal objects examined in this small survey also appear to have a wider variety of properties than TDGs formed in current simulations.
Details
- Title: Subtitle
- The frequency and properties of young tidal dwarf galaxies in nearby groups
- Creators
- K. Lee-Waddell - Australia Telescope National FacilityK. Spekkens - Royal Military College of CanadaP. Chandra - National Centre for Radio AstrophysicsN. Patra - National Centre for Radio AstrophysicsJ. -C. Cuillandre - Délégation Paris 7J. Wang - Australia Telescope National FacilityM. P. Haynes - Cornell UniversityJ. Cannon - Macalester CollegeS. Stierwalt - University of VirginiaJ. Sick - Queen's UniversityR. Giovanelli - Cornell University
- Contributors
- A G DePaz (Editor)J H Knapen (Editor)J C Lee (Editor)
- Resource Type
- Conference proceeding
- Publication Details
- FORMATION AND EVOLUTION OF GALAXY OUTSKIRTS, Vol.11(S321), pp.238-240
- Publisher
- Cambridge Univ Press
- Series
- IAU Symposium Proceedings Series
- DOI
- 10.1017/S1743921316009066
- ISSN
- 1743-9213
- eISSN
- 1743-9221
- Number of pages
- 3
- Language
- English
- Date published
- 03/01/2016
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627302702771
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