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Detection of the Water Reservoir in a Forming Planetary System
The detection of cold water vapor in a nearby planet-forming disk suggests that water ice exists in its outer regions. Icy bodies may have delivered the oceans to the early Earth, yet little is knownExpand
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Interstellar OH+, H2O+ and H3O+ along the sight-line to G10.6–0.4
We report the detection of absorption lines by the reactive ions OH + ,H 2O + and H3O + along the line of sight to the submillimeter continuum source G10.6−0.4 (W31C). We used the Herschel HIFIExpand
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Ubiquitous argonium (ArH + ) in the diffuse interstellar medium: A molecular tracer of almost purely atomic gas
Aims. We describe the assignment of a previously unidentified interstellar absorption line to ArH + and discuss its relevance in the context of hydride absorption in di use gas with a low H2Expand
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HERSCHEL OBSERVATIONS OF EXTRAORDINARY SOURCES: ANALYSIS OF THE HIFI 1.2 THz WIDE SPECTRAL SURVEY TOWARD ORION KL. I. METHODS ∗
We present a comprehensive analysis of a broadband spectral line survey of the Orion Kleinmann-Low nebula (Orion KL), one of the most chemically rich regions in the Galaxy, using the HIFI instrumentExpand
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Deuterated Molecules in Orion KL from Herschel/HIFI
We present a comprehensive study of the deuterated molecules detected in the fullband HIFI survey of the Orion Kleinmann-Low nebula (Orion KL) region. Ammonia, formaldehyde, and methanol and theirExpand
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Determination of the Hyperfine Structure of N2D
We present new high spectral resolution observations of the N2D+ J = 2 → 1 and J = 3 → 2 as well as N2H+ J = 3 → 2 lines toward dense molecular cores. The hyperfine structure of the N2H+ and N2D+Expand
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First detection of gas-phase ammonia in a planet-forming disk
Nitrogen chemistry in protoplanetary disks and the freeze-out on dust particles is key to understand the formation of nitrogen bearing species in early solar system analogs. So far, ammonia has notExpand
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Background levels of methane in Mars’ atmosphere show strong seasonal variations
Measuring martian organics and methane The Curiosity rover has been sampling on Mars for the past 5 years (see the Perspective by ten Kate). Eigenbrode et al. used two instruments in the SAM (SampleExpand
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Acetone: Laboratory Assignments and Predictions through 620 GHZ for the Vibrational-Torsional Ground State
The acetone molecule has a complex rotational spectrum arising from the internal rotation of two methyl tops and their interaction with each other and the rigid-body rotation of the molecule. Here weExpand
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Nitrogen hydrides in interstellar gas II. Analysis of Herschel/HIFI observations towards W49N and G10.6-0.4 (W31C)
As a part of the Herschel key programme PRISMAS, we have used the Herschel-HIFI instrument to observe interstellar nitrogen hydrides along the sight-lines towards eight high-mass star-forming regionsExpand
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