Formation of hydroxylamine on dust grains via ammonia oxidation

Abstract

The quest to detect prebiotic molecules in space, notably amino acids, requires an understanding of the chemistry involving nitrogen atoms. Hydroxylamine (NH${}_2$OH) is considered a precursor to the amino acid glycine. Although not yet detected, NH${}_2$OH is considered a likely target of detection with ALMA. We report on an experimental investigation of the formation of hydroxylamine on an amorphous silicate surface via the oxidation of ammonia. The experimental data are then fed into a simulation of the formation of NH${}_2$OH in dense cloud conditions. On ices at 14 K and with a modest activation energy barrier, NH${}_2$OH is found to be formed with an abundance that never falls below a factor 10 with respect to NH${}_3$. Suggestions of conditions for future observations are provided.

arXiv comment9 pages, 9 figures

References in corpus (19)

• Formation of methyl formate and other organic species in the warm-up phase of hot molecular cores
• A three-phase chemical model of hot cores: the formation of glycine
• Molecular Hydrogen Formation on Astrophysically Relevant Surfaces
• The ancient heritage of water ice in the solar system
• Detection of amino acetonitrile in Sgr B2(N)
• On the Formation of CO2 and Other Interstellar Ices
• First detection of water vapor in a pre-stellar core
• The c2d Spitzer Spectroscopic Survey of Ices Around Low-Mass Young Stellar Objects. IV. NH3 and CH3OH
• Interstellar chemistry of nitrogen hydrides in dark clouds
• The far-IR spectrum of Sagittarius B2 region: Extended molecular absorption, photodissociation and photoionization
• Nitrogen hydrides in the cold envelope of IRAS16293-2422
• A Search for Hydroxylamine (NH2OH) toward Select Astronomical Sources
• Efficient Surface Formation Route of Interstellar Hydroxylamine through NO Hydrogenation II: the multilayer regime in interstellar relevant ices
• First detection of ND in the solar-mass protostar IRAS16293-2422
• ALMA Observations of the IRDC Clump G34.43+00.24 MM3: Hot Core and Molecular Outflows
• Abundances of Molecular Species in Barnard 68
• Detectability of Glycine in Solar-type System Precursors
• The Comparison of Physical Properties Derived from Gas and Dust in a Massive Star-Forming Region
• A sub-arcsecond study of the hot molecular core in G023.01-00.41

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• Sticking of molecules on non-porous amorphous water ice
• The ALMA-PILS survey: Stringent limits on small amines and nitrogen-oxides towards IRAS 16293-2422B
• A New Determination of the Binding Energy of Atomic Oxygen on Dust Grain Surfaces: Experimental Results and Simulations
• Laboratory and Computational Studies of Interstellar Ices
• An overview of desorption parameters of Volatile and Complex Organic Molecules: A systematic dig on experimental literature
• CSO and CARMA Observations of L1157. I. A Deep Search for Hydroxylamine (NH${}_2$OH)
• Thermal desorption of ammonia from crystalline forsterite surfaces
• Thermal desorption of astrophysically relevant molecules from forsterite(010)
• A major asymmetric ice trap in a planet-forming disk IV. Nitric oxide gas and a lack of CN tracing sublimating ices and a C/O ratio $<1$
• Processing of hydroxylamine, NH2OH, an important prebiotic precursor, on interstellar ices
• Hydroxylamine in Astrophysical Ices: IR Spectra and Cosmic Ray-Induced Radiolytic Chemistry