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http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1938| Starbursts and black hole masses in X-shaped radio galaxies: Signatures of a merger event? | |
| Vahram Chavushyan | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| Galaxies: kinematics and dynamics Galaxies: formation Galaxies: nuclei Black hole physics | |
| We present new spectroscopic identifications of 12 X-shaped radio galaxies and use the spectral data to derive starburst histories and masses of the nuclear supermassive black holes in these galaxies. The observations were done with the 2.1-m telescope of the Observatorio Astronómico Nacional at San Pedro Mártir, México. The new spectroscopic results extend the sample of X-shaped radio galaxies studied with optical spectroscopy. We show that the combined sample of the X-shaped radio galaxies has statistically higher black-hole masses and older episodes of star formation than a control sample of canonical double-lobed radio sources with similar redshifts and luminosities. The data reveal enhanced star-formation activity in the X-shaped sample on the timescales expected in galactic mergers. We discuss the results obtained in the framework of the merger scenario. | |
| Astronomy & Astrophysics | |
| 2012-06 | |
| Artículo | |
| Inglés | |
| Estudiantes Investigadores Público en general | |
| Mezcua, M., et al., (2012), Starbursts and black hole masses in X-shaped radio galaxies: Signatures of a merger event?, Astronomy & Astrophysics, Vol. 544:1-9 | |
| ASTRONOMÍA Y ASTROFÍSICA | |
| Versión aceptada | |
| acceptedVersion - Versión aceptada | |
| Aparece en las colecciones: | Artículos de Astrofísica |
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