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Infrared Space Observatory's Discovery of C4H2, C6H2, and Benzene in CRL 618
We report on the detection with the Infrared Space Observatory (ISO), for the first time in the circumstellar medium, of the polyacetylenic chains C4H2 and C6H2 and of benzene (C6H6) in the directionExpand
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Atmospheric transmission at microwaves (ATM): an improved model for millimeter/submillimeter applications
We present a model of the longwave atmospheric spectrum that improves in many respects widely used older models such as the microwave propagation model (MPM), since it is based on broadbandExpand
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In-orbit performance of Herschel-HIFI
Aims. In this paper the calibration and in-orbit performance of the Heterodyne Instrument for the Far-Infrared (HIFI) is described. Methods. The calibration of HIFI is based on a combination ofExpand
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DISCOVERY OF THE METHOXY RADICAL, CH3O, TOWARD B1: DUST GRAIN AND GAS-PHASE CHEMISTRY IN COLD DARK CLOUDS*
We report on the discovery of the methoxy radical (CH3O) toward the cold and dense core B1-b based on the observation, with the IRAM 30 m radio telescope, of several lines at 3 and 2 mm wavelengths.Expand
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A λ2 mm molecular line survey of the C-star envelope IRC+10216
The mm-wave spectrum of the C-star envelope IRC+10216 has been continuously surveyed between 129.0 and 172.5 GHz with the IRAM 30-m telescope. 380 lines are detected, of which 317 have been identied.Expand
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A stubbornly large mass of cold dust in the ejecta of Supernova 1987A
We present new Herschel photometric and spectroscopic observations of Supernova 1987A, carried out in 2012. Our dedicated photometric measurements provide new 70 micron data and improved imagingExpand
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SPECTROSCOPIC CHARACTERIZATION AND DETECTION OF ETHYL MERCAPTAN IN ORION
New laboratory data of ethyl mercaptan, CH3CH2SH, in the millimeter- and submillimeter-wave domains (up to 880?GHz) provided very precise values of the spectroscopic constants that allowed theExpand
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Detection of a Noble Gas Molecular Ion, 36ArH+, in the Crab Nebula
We Are Stardust Most of the universe's chemical elements were produced in stars, with the heaviest elements being produced when stars explode. Barlow et al. (p. 1343) used the Herschel SpaceExpand
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Submillimeter atmospheric transmission measurements on Mauna Kea during extremely dry El Nino conditions: implications for broadband opacity contributions
Abstract We present broadband atmospheric transmission spectra obtained on Mauna Kea, Hawaii (4100 m. above sea level) on UT April 1st, 1998 and July 1st, 1999 under very similar pressure andExpand
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The chemistry and spatial distribution of small hydrocarbons in UV-irradiated molecular clouds: the Orion Bar PDR
This work has been partially funded by MINECO grants (CSD2009-00038, AYA2009-07304, and AYA2012-32032). S.C. acknowledges support from FPI-INTA grant. P.P. acknowledges financial support from theExpand
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