SIMBAD references

2009AJ....137.3293E - Astron. J., 137, 3293-3296 (2009/February-0)

An expanded Very Large Array search for water megamaser emission in the submm galaxy SMM J16359+6612 at z = 2.5.

EDMONDS R., WAGG J., MOMJIAN E., CARILLI C.L., WILNER D.J., HUMPHREYS E.M.L., MENTEN K.M. and HUGHES D.H.

Abstract (from CDS):

Using the Expanded Very Large Array, we have conducted a search for 22.2 GHz H2 O 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 (S_850 µm_∼ 1 mJy). We do not detect any H2 O megamaser emission, but the lensing allows us to place an interesting constraint on the luminosity of any megamasers present, 5305 L for an assumed linewidth of 80 km/s. Because the far-infrared luminosity in submm galaxies is mainly powered by star formation, and very luminous H2 O megamasers are more commonly associated with quasar activity, it could be that blind searches for H2 O megamasers will not be an effective means of determining redshifts for less-luminous members of the submm galaxy population.

Abstract Copyright:

Journal keyword(s): cosmology: observations - galaxies: starburst - gravitational lensing - masers

Status at CDS:  

Simbad objects: 10

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2020.06.05-13:03:47

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