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Accretion phenomena in nearby star-forming dwarf galaxies

Published online by Cambridge University Press:  21 March 2017

F. Annibali ,
M. Tosi ,
A. Aloisi ,
M. Bellazzini ,
A. Buzzoni ,
M. Cignoni ,
L. Ciotti ,
F. Cusano ,
C. Nipoti  and
E. Sacchi
...Show all authors
F. Annibali
Affiliation:
INAF-Osservatorio Astronomico di Bologna Via Ranzani 1, I-40127 Bologna, Italy email: [email protected] Dipartimento di Fisica e Astronomia, Università di Bologna viale Berti-Pichat 6/2, 40127 Bologna, Italy
M. Tosi
Affiliation:
INAF-Osservatorio Astronomico di Bologna Via Ranzani 1, I-40127 Bologna, Italy email: [email protected]
A. Aloisi
Affiliation:
Space Telescope Science Institute 3700 San Martin Drive, Baltimore, MD 21218, USA
M. Bellazzini
Affiliation:
INAF-Osservatorio Astronomico di Bologna Via Ranzani 1, I-40127 Bologna, Italy email: [email protected]
A. Buzzoni
Affiliation:
INAF-Osservatorio Astronomico di Bologna Via Ranzani 1, I-40127 Bologna, Italy email: [email protected]
M. Cignoni
Affiliation:
Space Telescope Science Institute 3700 San Martin Drive, Baltimore, MD 21218, USA Dipartimento di Fisica, Università di Pisa Largo Bruno Pontecorvo, 3, 56127 Pisa, Italy
L. Ciotti
Affiliation:
Dipartimento di Fisica e Astronomia, Università di Bologna viale Berti-Pichat 6/2, 40127 Bologna, Italy
F. Cusano
Affiliation:
INAF-Osservatorio Astronomico di Bologna Via Ranzani 1, I-40127 Bologna, Italy email: [email protected]
C. Nipoti
Affiliation:
Dipartimento di Fisica e Astronomia, Università di Bologna viale Berti-Pichat 6/2, 40127 Bologna, Italy
E. Sacchi
Affiliation:
INAF-Osservatorio Astronomico di Bologna Via Ranzani 1, I-40127 Bologna, Italy email: [email protected] Dipartimento di Fisica e Astronomia, Università di Bologna viale Berti-Pichat 6/2, 40127 Bologna, Italy
D. Paris
Affiliation:
INAF-Osservatorio Astronomico di Roma Via Frascati 33, 00078, Monte Porzio Catone, Italy
D. Romano
Affiliation:
INAF-Osservatorio Astronomico di Bologna Via Ranzani 1, I-40127 Bologna, Italy email: [email protected]
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Abstract

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We present two pilot studies for the search and characterization of accretion events in star-forming dwarf galaxies. Our strategy consists of two complementary approaches: i) the direct search for stellar substructures around dwarf galaxies through deep wide-field imaging, and ii) the characterization of the chemical properties in these systems up to large galacto-centric distances. We show our results for two star-forming dwarf galaxies, the starburst irregular NGC 4449, and the extremely metal-poor dwarf DDO 68.

Keywords

galaxies: individual (NGC 4449DDO 68)galaxies: dwarfgalaxies: interactions
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S321: Formation and Evolution of Galaxy Outskirts , March 2016 , pp. 211 - 213
Copyright
Copyright © International Astronomical Union 2017 

References

Annibali, F., Tosi, M., Aloisi, A., & van der Marel, R. P. 2011a AJ, 142, 129 Google Scholar
Annibali, F., Grützbauch, R., Rampazzo, R., et al. 2011b, A&A, 528, A19 Google Scholar
Annibali, F., Tosi, M., Aloisi, A., et al. 2012, ApJL, 745, L1 Google Scholar
Amorisco, N. C., Evans, N. W., & van de Ven, G. 2014, Nature, 507, 335 Google Scholar
Cannon, J. M., Johnson, M., McQuinn, K. B. W., et al. 2014, ApJL, 787, L1 Google Scholar
Izotov, Y. I., & Thuan, T. X. 2009 ApJ, 690, 1797 Google Scholar
Kaufer, A., Venn, K. A., Tolstoy, E., Pinte, C., & Kudritzki, R.-P. 2004, AJ, 127, 2723 Google Scholar
Kirby, E. N., Lanfranchi, G. A., Simon, J. D., et al. 2011, ApJ, 727, 78 Google Scholar
Lelli, F., Verheijen, M., & Fraternali, F. 2014, MNRAS, 445, 1694 CrossRefGoogle Scholar
Martínez-Delgado, D., Romanowsky, A. J., Gabany, R. J., et al. 2012, ApJL, 748, L24 CrossRefGoogle Scholar
Sacchi, E., Annibali, F., Cignoni, M., et al. 2016 arXiv:1604.06239 Google Scholar
Sharina, M. E., Chandar, R., Puzia, T. H., et al. 2010, MNRAS, 405, 839 Google Scholar
Tikhonov, N. A., Galazutdinova, O. A., & Lebedev, V. S. 2014, Astronomy Letters, 40, 1 Google Scholar
Van der Swaelmen, M., Hill, V., Primas, F., & Cole, A. A. 2013, A&A, 560, A44 Google Scholar
Venn, K. A., Lennon, D. J., Kaufer, A., et al. 2001, ApJ, 547, 765 Google Scholar
Venn, K. A., Tolstoy, E., Kaufer, A., et al. 2003, AJ, 126, 1326 Google Scholar
Venn, K. A., Irwin, M., Shetrone, M. D., et al. 2004, AJ, 128, 1177 Google Scholar