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http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1354| An expanded very large array search for water megamaser emission in the submm galaxy SMM J16359+6612 AT z = 2.5 | |
| David Hughes | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| Cosmology: observations Galaxies: starburst Gravitational lensing Masers | |
| Using the Expanded Very Large Array, we have conducted a search for 22.2 GHz H₂O megamaser emission in the strongly lensed submm galaxy, SMM J16359+6612 at z = 2.517. This object is lensed into three components, and after a correction for magnification is applied to its submm-wavelength flux density, it is typical of the bulk of the high-redshift, submm galaxy population responsible for the 850 μm extragalactic background (S₈₅₀μm ∼1 mJy). We do not detect any H₂O megamaser emission, but the lensing allows us to place an interesting constraint on the luminosity of any megamasers present, L🇭₂🇴 <5305L⊚ for an assumed linewidth of 80 km s⁻¹. Because the far-infrared luminosity in submm galaxies is mainly powered by star formation, and very luminous H₂O megamasers are more commonly associated with quasar activity, it could be that blind searches for H₂O megamasers will not be an effective means of determining redshifts for less-luminous members of the submm galaxy population. | |
| The Astronomical Journal | |
| 2009 | |
| Artículo | |
| Inglés | |
| Estudiantes Investigadores Público en general | |
| Edmonds, R., et al., (2009). An expanded very large array search for water megamaser emission in the submm galaxy SMM J16359+6612 AT z = 2.5, The Astronomical Journal. Vol.137(2):3293–3296. | |
| ASTRONOMÍA Y ASTROFÍSICA | |
| Versión aceptada | |
| acceptedVersion - Versión aceptada | |
| Aparece en las colecciones: | Artículos de Astrofísica |
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