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Abstract:

NGC 5291 is an early type galaxy at the edge of the cluster Abell 3574 which drew the attention because of the unusual high amount of atomic gas (∼ 5 × 10110 M·) found associated to it. The HI is distributed along a huge and fragmented ring, possibly formed after a tidal interaction with a companion galaxy. We present multi-slit optical spectroscopic observations and optical/near-infrared images of the system. We show that NGC 5291 is a LINER galaxy exhibiting several remnants of previous merging events, in particular a curved dust lane and a counter-rotation of the gas with respect to the stars. The atomic hydrogen has undoubtly an external origin and was probably accreted by the galaxy from a gas-rich object in the cluster. It is unlikely that the HI comes from the closest companion of NGC 5291, the so-called "Seashell" galaxy, which appears to be a fly-by object at a velocity greater than 400 km s-1. We have analyzed the properties of 11 optical counterparts to the clumps observed in the HI ring. The brightest knots show strong similarities with classical blue compact dwarf galaxies. They are dominated by active star forming regions; their most recent starburst is younger than 5 Myr; we did not find evidences for the presence of an old underlying stellar population. NGC 5291 appears to be a maternity of extremely young objects most probably forming their first generation of stars. Born in pre-enriched gas clouds, these recycled galaxies have an oxygen abundance which is higher than BCDGs (Z⊙/3 on average) and which departs from the luminosity-metallicity relation observed for typical dwarf and giant galaxies. We propose this property as a tool to identify tidal dwarf galaxies (TDGs) among the dwarf galaxy population. Several TDGs in NGC 5291 exhibit strong velocity gradients in their ionized gas and may already be dynamically independent galaxies.

Registro:

Documento: Artículo
Título:Young tidal dwarf galaxies around the gas-rich disturbed lenticular NGC 5291
Autor:Duc, P.-A.; Mirabel, I.F.
Filiación:ESO, Karl-Schwarzschild-Strasse 2, D-85748 Garching bei München, Germany
CEA, SAp, C.E. Saclay, F-91191 Gif-sur-Yvette Cedex, France
Instituto de Astronomia, Física del Espacio, Argentina
Palabras clave:Galaxies: dwarf; Galaxies: formation; Galaxies: individual: NGC 5291; Galaxies: interactions; Galaxies: ISM; Radio lines: galaxies
Año:1998
Volumen:333
Número:3
Página de inicio:813
Página de fin:826
Título revista:Astronomy and Astrophysics
Título revista abreviado:Astron. Astrophys.
ISSN:00046361
CODEN:AAEJA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v333_n3_p813_Duc

Referencias:

  • Appleton, P.N., (1983) MNRAS, 203, p. 533
  • Barnes, J.E., Hernquist, L., (1992) Nature, 360, p. 715
  • Bender, R., (1990) A&A, 229, p. 441
  • Bertola, F., Buson, L.M., Zeilinger, W.W., (1992) ApJ, 401, pp. L79
  • Casali, M., Hawarden, T., (1992) JCMT-UKIRT Newsletter, 3, p. 33
  • Cerviño, M., Mas-Hesse, J.M., (1994) A&A, 284, p. 749
  • Daly, P.N., Phillipps, S., Disney, M.J., (1987) A&AS, 68, p. 33
  • Doublier, V., Caulet, A., (1996) BAAS, 188, p. 0904
  • Duc, P.-A., (1995), Ph.D. thesis, Université Paris VI; Duc, P.-A., Brinks, E., Wink, J.E., Mirabel, I.F., (1997) A&A, 326, p. 537
  • Duc, P.-A., Fritze-v Alvensleben, U., Mirabel, I.F., (1997) Extragalactic Astronomy in the Infrared, Ed. Frontieres, , G. Mamon, T. Thuan, & T. Tran (eds.)
  • Duc, P.-A., Mirabel, I.F., (1994) A&A, 289, p. 83
  • Duc, P.-A., Mirabel, I.F., (1997) Messenger, 89, p. 14
  • Edmunds, M.G., Pagel, B.E.J., (1984) MNRAS, 211, p. 50
  • Fritze-v.Alvensleben, U., Duc, P.-A., (1997) Kyoto IAU, 23, pp. JD2-050P
  • Hamuy, M., Walker, A.R., Suntzeff, N.B., Gigoux, P., Heathcote, S.R., Phillips, M.M., (1992) PASP, 104, p. 533
  • Hawarden, T.G., Chaytor, D.H., (1996) BAAS, 189, pp. 120.17
  • Hibbard, J., Van Der Hulst, J., Barnes, J., (1997), in preparation; Hibbard, J.E., Guhathakurta, P., Van Gorkom, J.H., Schweizer, F., (1994) AJ, 107, p. 67
  • Hibbard, J.E., Mihos, J.C., (1995) AJ, 110, p. 140
  • Hibbard, J.E., Van Gorkom, J.H., (1996) AJ, 111, p. 655
  • Hunsberger, S.D., Charlton, J.C., Zaritsky, D., (1996) ApJ, 462, p. 50
  • Hunter, D.A., Gallagher, J.S., (1986) PASP, 98, p. 5
  • Kennicutt, R.C.J., (1989) ApJ, 344, p. 685
  • Knapp, G.R., Turner, E.L., Cunniffe, P.E., (1985) AJ, 90, p. 454
  • Krüger, H., Fritze-V Alvensleben, U., Loose, H.H., (1995) A&A, 303, p. 41
  • Landolt, A.U., (1992) AJ, 104, p. 340
  • Leitherer, C., Heckman, T.M., (1995) ApJS, 96, p. 9
  • Longmore, A.J., Hawarden, T.G., Cannon, R.D., Allen, D.A., Mebold, U., Goss, W.M., Reif, K., (1979) MNRAS, 188, p. 285
  • Malphrus, B., Simpson, C., Gottesman, S., Hawarden, T.G., (1997) AJ, 114, p. 1427
  • Maza, J., Ruiz, M.T., Gonzalez, L.E., Wischnjewsky, M., Pena, M., (1991) A&AS, 89, p. 389
  • Mirabel, I.F., Dottori, H., Lutz, D., (1992) A&A, 256, pp. L19
  • Morganti, R., Sadler, E.M., Oosterloo, T., Pizzella, A., Bertola, F., (1997) AJ, 113, p. 937
  • Papaderos, P., Loose, H.H., Thuan, T.X., Fricke, K.J., (1996) A&AS, 120, p. 207
  • Peña, M., Ruiz, M.T., Maza, J., (1991) A&A, 251, p. 417
  • Richer, M.G., McCall, M.L., (1995) ApJ, 445, p. 642
  • Sanders, D.B., Mirabel, I.F., (1996) ARA&A, 34, p. 749
  • Schneider, S.E., (1989) ApJ, 343, p. 94
  • Schweizer, F., (1978) Structure and Properties of Nearby Galaxies, p. 279. , E. Berkhuijsen & R. Wielebinski (eds.), Dordrecht, D. Reidel Publishing Co
  • Skillman, E.D., (1989) ApJ, 347, p. 883
  • Skillman, E.D., Bomans, D.J., Kobulnicky, H.A., (1997) ApJ, 474, p. 205
  • Skillman, E.D., Kennicutt, R.C., Hodge, P.W., (1989) ApJ, 347, p. 875
  • Smith, E.P., Hintzen, P., (1991) AJ, 101, p. 410
  • Taylor, C.L., Brinks, E., Pogge, R.W., Skillman, E.D., (1994) AJ, 107, p. 971
  • Terlevich, R., Melnick, J., Masegosa, J., Moles, M., Copetti, M.V.F., (1991) A&AS, 91, p. 285
  • Thuan, T.X., (1983) ApJ, 268, p. 667
  • Thuan, T.X., (1985) ApJ, 299, p. 881
  • Thuan, T.X., Izotov, Y.I., Lipovetsky, V.A., (1997) ApJ, 477, p. 661
  • Torres-Peimbert, S., Peimbert, M., Fierro, J., (1989) ApJ, 345, p. 186
  • Veilleux, S., Osterbrock, D.E., (1987) ApJS, 63, p. 295
  • Vilchez, J.M., (1995) AJ, 110, p. 1090
  • Wallin, J.F., (1990) AJ, 100, p. 1477

Citas:

---------- APA ----------
Duc, P.-A. & Mirabel, I.F. (1998) . Young tidal dwarf galaxies around the gas-rich disturbed lenticular NGC 5291. Astronomy and Astrophysics, 333(3), 813-826.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v333_n3_p813_Duc [ ]
---------- CHICAGO ----------
Duc, P.-A., Mirabel, I.F. "Young tidal dwarf galaxies around the gas-rich disturbed lenticular NGC 5291" . Astronomy and Astrophysics 333, no. 3 (1998) : 813-826.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v333_n3_p813_Duc [ ]
---------- MLA ----------
Duc, P.-A., Mirabel, I.F. "Young tidal dwarf galaxies around the gas-rich disturbed lenticular NGC 5291" . Astronomy and Astrophysics, vol. 333, no. 3, 1998, pp. 813-826.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v333_n3_p813_Duc [ ]
---------- VANCOUVER ----------
Duc, P.-A., Mirabel, I.F. Young tidal dwarf galaxies around the gas-rich disturbed lenticular NGC 5291. Astron. Astrophys. 1998;333(3):813-826.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v333_n3_p813_Duc [ ]