Lee-Waddell, K. ; Spekkens, K. ; Chandra, P. ; Patra, N. ; Cuillandre, J.-C. ; Wang, J. ; Haynes, M. P. ; Cannon, J. ; Stierwalt, S. ; Sick, J. ; Giovanelli, R. (2016) The frequency and properties of young tidal dwarf galaxies in nearby groups Proceedings of the International Astronomical Union, 11 (S321). pp. 238-240. ISSN 1743-9213
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Official URL: http://doi.org/10.1017/S1743921316009066
Related URL: http://dx.doi.org/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.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to International Astronomical Union |
| Keywords: | galaxies: dwarf; galaxies: interactions; galaxies: groups: individual |
| ID Code: | 125705 |
| Deposited On: | 29 Sep 2022 06:34 |
| Last Modified: | 29 Sep 2022 06:34 |
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