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The "True" Column Density Distribution in Star-Forming Molecular Clouds
(American Astronomical Society, 2009)
We use the COMPLETE Survey's observations of the Perseus star-forming region to assess and intercompare the three methods used for measuring column density in molecular clouds: near-infrared (NIR) extinction mapping; thermal ...
The Perils of Clumpfind: The Mass Spectrum of Substructures in Molecular Clouds
(American Astronomical Society, 2009)
We study the mass spectrum of substructures in the Perseus Molecular Cloud Complex traced by \(^{13}CO(1–0)\), finding that \(dN/dM \ \alpha \ M^{−2.4}\) for the standard Clumpfind parameters. This result does not agree ...
Dense Cores in Perseus: The Influence of Stellar Content and Cluster Environment
(American Astronomical Society, 2009)
We present the chemistry, temperature, and dynamical state of a sample of 193 dense cores or core candidates in the Perseus Molecular cloud and compare the properties of cores associated with young stars and clusters with ...
Line Imaging of Orion KL at 865 μm with the Submillimeter Array
(IOP Publishing, 2005)
We present the first submm (865 µm) imaging spectral line survey at one arcsecond resolution conducted with the Submillimeter Array toward Orion-KL. Within the two × two GHz bandpasses (lower and upper sidebands, 337.2–339.2GHz ...
Discovery of Water Maser Emission in Eight AGNs with 70 m Antennas of NASA’s Deep Space Network
(IOP Publishing, 2006)
We report the discovery of water maser emission in eight active galactic nuclei (AGN) with the 70-m NASA Deep Space Network (DSN) antennas at Tidbinbilla, Australia and Robledo, Spain. The positions of the newly discovered ...
Submillimeter Array 440 μm/690 GHz Line and Continuum Observations of Orion KL
(IOP Publishing, 2006)
Submillimeter Array observations of Orion-KL at ∼ 1′′ resolution in the 440 µm/690 GHz band reveal new insights about the continuum and line emission of the region. The 440 µm continuum flux density measurement from source ...
Discovery of Water Maser Emission in Five AGNs and a Possible Correlation Between Water Maser and Nuclear 2–10 keV Luminosities
(IOP Publishing, 2006)
We report the discovery of water maser emission in five active galactic nuclei (AGN) with the 100-m Green Bank Telescope (GBT). The positions of the newly discovered masers, measured with the VLA, are consistent with the ...
Outflow 20–2000 AU from a High‐Mass Protostar in W51‐IRS 2
(IOP Publishing, 2002)
We present the results of the first high angular resolution observations of SiO maser emission towards the star forming region W51-IRS2 made with the Very Large Array (VLA) and Very Long Baseline Array (VLBA). Our images ...
A Search for H 2 O Maser Emission in Southern Active Galactic Nuclei and Star‐forming Galaxies: Discovery of a Maser in the Edge‐on Galaxy IRAS F01063?8034
(IOP Publishing, 2002)
We report the cumulative results of five surveys for H2O maser emission at 1.35 cm wavelength in 131 active galactic nuclei (AGNs) and star-forming galaxies, conducted at the Parkes Observatory between 1993 and 1998. We ...
A Warped Accretion Disk and Wide‐Angle Outflow in the Inner Parsec of the Circinus Galaxy
(IOP Publishing, 2003)
We present the first VLBI maps of H2O maser emission (λ1.3 cm) in the nucleus of the Circinus Galaxy, constructed from data obtained with the Australia Telescope Long Baseline Array. The maser emission traces a warped, ...