Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-14T06:43:32.909Z Has data issue: false hasContentIssue false
  • English
  • Français

A ULX in NGC 4559: A “Mini-Cartwheel” Scenario?

Published online by Cambridge University Press:  22 February 2018

R. Soria ,
M. S. Cropper  and
M. W. Pakull
R. Soria
Affiliation:
Mullard Space Science Laboratory, University College London
M. S. Cropper
Affiliation:
Mullard Space Science Laboratory, University College London
M. W. Pakull
Affiliation:
Observatoire de Strasbourg, France

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We have studied the peculiar environment around a ULX in NGC 4559 (with Lx ≈ 2 x 1040 erg s–1 and MBH ≳ 50M⊙). The X-ray source is located near the rim of a young (age < 30 Myr), large (diameter ≈ 700 pc) ring-like star forming complex possibly triggered by the impact of a dwarf satellite galaxy through the gas-rich outer disk of NGC 4559. We speculate that galaxy interactions (including the infall of high-velocity clouds and satellites on a galactic disk) and low-metallicity environments offer favourable conditions for the formation of compact remnants more massive than “standard” X-ray binaries, and accreting from a massive Roche-lobe filling companion.

Resumen

Resumen

Estudiamos el peculiar medio alrededor de una ULX en NGC 4559 (con Lx ≈ 2 x 1040 erg s–1 y MBH ≳ 50M⊙). La fuente de rayos X se localiza cerca del borde (edad < 30 Myr) de un complejo grande (diámetro ≈ 700 pc), joven, en forma de anillo, con formación de estrellas posiblemente inducida por el impacto de una galaxia satélite enana a través del disco exterior rico en gas de NGC 4559. Suponemos que interacciones galácticas (incluyendo la caída de nubes de alta velocidad y satélites sobre el disco galáctico) y el medio de baja metalicidad representan condiciones favorables para la formación de rémanentes más masivos que las binarias de rayos X “estándar” y que los que acretan materia de una compañera masiva que llena el lóbulo de Roche.

Keywords

GalaxiesIndividual (NGC 4559) — GalaxiesInteractions — GalaxiesSpiral — X-RaysGalaxies
Type
The Contributed Papers
Information
International Astronomical Union Colloquium , Volume 194: Compact binaries in the galaxy and beyond , 2004 , pp. 57 - 59
Copyright
Copyright © Instituto de astronomia/revista mexicana de astronomίa y astrofίsica 2004

References

Comerón, F. 2001, A&A, 365, 417 Google Scholar
Comerón, F., & Torra, J. 1994, A&A, 281, 35 Google Scholar
Cropper, M. S., Soria, R., Mushotzky, R. F., Wu, K., Markwardt, С. B., & Pakull, M. 2004, MNRAS, in press (astro-ph/0311302)Google Scholar
Elmegreen, B. G., Efremov, Y. N., & Larsen, S. 2000, ApJ, 535, 748 Google Scholar
Elmegreen, B. G., & Lada, С. J. 1977, ApJ, 214, 725 Google Scholar
Gao, Y., Wang, Q. D., Appleton, P. N., & Lucas, R. A. 2003, ApJ, 596, L171 CrossRefGoogle Scholar
Langer, N., & Maeder, A. 1995, A&A, 295, 68 Google Scholar
Leitherer, C., et al. 1999, ApJS, 123, 3 Google Scholar
Pakull, M. W., & Mirioni, L. 2002, to appear in the proceedings of the symposium ‘New Visions of the X-ray Universe’, 26-30 November 2001, ESTEC, The Netherlands (astro-ph/0202488)Google Scholar
Parodi, B. R., & Binggeli, B. 2003, A&A, 398, 501 Google Scholar
Portegies Zwart, S. F., & McMillan, S. L. W. 2002, ApJ, 576, 899 CrossRefGoogle Scholar
Sanders, D. B., Mazzarella, J. M., Kim, D.-C., Surace, J. A., & Soifer, B. T. 2003, AJ, 126, 1607 Google Scholar
Soria, R., Cropper, M., Pakull, M., et al. 2004, MNRAS, in preparationGoogle Scholar
Tenorio-Tagle, G., Franco, J., Bodenheimer, P., & Rozyczka, M. 1987, A&A, 179, 219 Google Scholar
Vogler, A., Pietsch, W., & Bertoldi, F. 1997, A&A, 318, 768 Google Scholar