Extremely Luminous Water Vapor Emission from a Type 2 Quasar at Redshift z = 0.66
arXiv:astro-ph/0506245 · doi:10.1086/432666
Abstract
A search for water masers in 47 Sloan Digital Sky Survey Type 2 quasars using the Green Bank Telescope has yielded a detection at a redshift of z = 0.660. This maser is more than an order of magnitude higher in redshift than any previously known and, with a total isotropic luminosity of 23,000 L_sun, also the most powerful. The presence and detectability of water masers in quasars at z ~ 0.3-0.8 may provide a better understanding of quasar molecular tori and disks, as well as fundamental quasar and galaxy properties such as black hole masses. Water masers at cosmologically interesting distances may also eventually provide, via direct distance determinations, a new cosmological observable for testing the reality and properties of dark energy, currently inferred primarily through Type 1a supernova measurements.
8 pages including 1 figure; accepted for publication in ApJ Letters
References in corpus (5)
- Type Ia Supernova Discoveries at z>1 From the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution
- Candidate Type II Quasars from the Sloan Digital Sky Survey: I. Selection and Optical Properties of a Sample at 0.3<Z<0.83
- A Green Bank Telescope Search for Water Masers in Nearby Active Galactic Nuclei
- Powerful Water Masers in Active Galactic Nuclei
- Discovery of a luminous water megamaser in the FRII radiogalaxy 3C403
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