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We have developed a completely lithographic antenna-coupled bolometer for CMB polarimetry. The necessary components of a millimeter wave radiometer — a beam forming element, a band defining filter, and the TES detectors — are fabricated on a silicon chip with photolithography. The densely populated antennas allow a very efficient use of the focal plane(More)
We report the performance of the 183 GHz radiometer system for the CSO-JCMT interferometer during the October 1998 run. The phase correction using the radiometers produced the rms phase uctu-ations by a factor a factor of ve less in signal loss due to decorrelation and achieved a corrected rms path length uctuation of 60 m under a moderately good(More)
We report a sensitive search for redshifted CO (3{2) emission from the weak radio galaxy 53W002 at z=2.394. Maps at resolutions of 3 00 and 235 km s ?1 show a signiicant emission peak within 0.5 00 of the optical and radio continuum peaks. The measured narrow band ux is approximately ten times the extrapolated cm-wavelength non-thermal radio continuum(More)
We present high spatial resolution (5.1 ′′ × 2.7 ′′) Owens Valley Radio Observatory (OVRO) millimeter array observations of HCN (J=1-0) and HCO + (J=1-0) emission in the inner 3 pc of the Galaxy (0.04 pc ∼ 1 ′′). The HCN and HCO + emission of the Circumnuclear Disk (CND) is distributed in a well-defined ring with a peak at a radius of 1.6 pc. The observed(More)
It has long been recognized that interactions between galaxies are important in determining their evolution. The distribution of gas--out of which new stars are formed--is strongly affected; in particular, gas may be concentrated near the nucleus, leading to a burst of star formation. Here we present a map of atomic hydrogen (H I) in the nearest interacting(More)
2 ABSTRACT We present submillimeter CO observations of 8 ultraluminous IRAS galaxies as preliminary results from a multitransition survey at the Caltech Submillimeter Observatory CSO. To date, high signal-to-noise spectra have been obtained for all 8 galaxies in the 12 CO J = 2 ! 1 and 3 ! 2 transitions. Also, we have recently detected the CO 4 ! 3 and 6 !(More)
We present results from a continuing interferometric survey of high-redshift submillimeter galaxies with the Submillimeter Array, including high-resolution (beam size ∼ 2 arcsec) imaging of eight additional AzTEC 1.1mm selected sources in the COSMOS Field, for which we obtain six reliable (peak S/N > 5 or peak S/N > 4 with multiwavelength counterparts(More)
Galaxies in compact groups tend to be deficient in neutral hydrogen compared to isolated galaxies of similar optical properties. In order to investigate the role played by a hot intragroup medium (IGM) for the removal and destruction of HI in these systems, we have performed a Chandra and XMM-Newton study of eight of the most HI deficient Hickson compact(More)