Astrochemistry of dust, ice and gas: introduction and overview

Abstract

A brief introduction and overview of the astrochemistry of dust, ice and gas and their interplay is presented, aimed at non-specialists. The importance of basic chemical physics studies of critical reactions is illustrated through a number of recent examples. Such studies have also triggered new insight into chemistry, illustrating how astronomy and chemistry can enhance each other. Much of the chemistry in star- and planet-forming regions is now thought to be driven by gas-grain chemistry rather than pure gas-phase chemistry, and a critical discussion of the state of such models is given. Recent developments in studies of diffuse clouds and PDRs, cold dense clouds, hot cores, protoplanetary disks and exoplanetary atmospheres are summarized, both for simple and more complex molecules, with links to papers presented in this volume. In spite of many lingering uncertainties, the future of astrochemistry is bright: new observational facilities promise major advances in our understanding of the journey of gas, ice and dust from clouds to planets.

Introductory paper for Faraday Discussions 168 conference, April 2014

References in corpus (44)

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• Non-thermal desorption from interstellar dust grains via exothermic surface reactions
• The evolution of amorphous hydrocarbons in the ISM: dust modelling from a new vantage point
• Interstellar water chemistry: from laboratory to observations
• Testing grain-surface chemistry in massive hot-core regions
• Simulation of the Formation and Morphology of Ice Mantles on Interstellar Grains
• Complex organic molecules in protoplanetary disks
• Laboratory evidence for efficient water formation in interstellar ices
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• Models of turbulent dissipation regions in the diffuse interstellar medium
• Pseudo 2D chemical model of hot Jupiter atmospheres: application to HD 209458b and HD 189733b
• Ubiquitous argonium (ArH${}^{+}$) in the diffuse interstellar medium -- a molecular tracer of almost purely atomic gas
• Gas structure inside dust cavities of transition disks: Oph IRS 48 observed by ALMA
• Molecular oxygen in the rho Ophiuchi cloud
• A new modified-rate approach for gas-grain chemical simulations
• Spatial mapping of ices in the Oph-F core: A direct measurement of CO depletion and the formation of CO2
• Thermal desorption of circumstellar and cometary ice analogs
• HCN Observations of Dense Star-Forming Gas in High Redshift Galaxies
• Detection of interstellar hydrogen peroxide
• Isotope selective photodissociation of N2 by the interstellar radiation field and cosmic rays
• Disk evolution, element abundances and cloud properties of young gas giant planets
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• Indirect ultraviolet photodesorption from CO:N2 binary ices - an efficient grain-gas process
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Cited by in corpus (42)

• Photodissociation and photoionisation of atoms and molecules of astrophysical interest
• Zooming in on Individual Star Formation: Low- and High-mass Stars
• Sulfur Ice Astrochemistry: A Review of Laboratory Studies
• Astrochemistry: overview and challenges
• PRODIGE -- Envelope to Disk with NOEMA II. Small-scale temperature structure and a streamer feeding the SVS13A protobinary using CH3CN and DCN
• The Astrochemical Impact of Cosmic Rays in Protoclusters I: Molecular Cloud Chemistry
• Prestellar grain-surface origins of deuterated methanol in comet 67P/Churyumov-Gerasimenko
• Condensed Matter Systems Exposed to Radiation: Multiscale Theory, Simulations, and Experiment
• Temperature programed desorption of water ice from the surface of amorphous carbon and silicate grains as related to planet-forming disks
• The future of astronomy with small satellites
• Cyanogen, cyanoacetylene, and acetonitrile in comet 67P and their relationship to the cyano radical
• Laboratory Experiments on the Radiation Astrochemistry of Water Ice Phases
• Rotational Desorption of Ice Mantles and Complex Molecules from Suprathermally Rotating Dust Grains around Young Stellar Objects
• ALMA Observations of Molecular Complexity in the Large Magellanic Cloud: The N105 Star-Forming Region
• Photodesorption of water ice from dust grains and thermal desorption of cometary ices studied by the INSIDE experiment
• Aliphatic hydrocarbon content of the interstellar dust
• Complex Organic Molecules in Star-Forming Regions of the Magellanic Clouds
• Low temperature optical properties of interstellar and circumstellar icy silicate grain analogues in the mid-infrared spectral region
• HI-to-H${}_2$ Transitions in Dust-Free Interstellar Gas
• The CO-H2 van der Waals complex and complex organic molecules in cold molecular clouds: a TMC-1C survey
• Chemical evolution of the gas in C-type shocks in dark clouds
• The Role of Terahertz and Far-IR Spectroscopy in Understanding the Formation and Evolution of Interstellar Prebiotic Molecules
• Chemistry on Rotating Grain Surface: Ro-Thermal Desorption of Molecules from Ice Mantles
• PRODIGE -- Envelope to Disk with NOEMA III. The origin of complex organic molecule emission in SVS13A
• A First Look for Molecules between 103 and 133 MHz using the Murchison Widefield Array
• Observational evidence for rotational desorption of Complex Molecules by radiative torques from Orion BN/KL
• A new analytic approach to infer the cosmic-ray ionization rate in hot molecular cores from HCO${}^{+}$, N${}_2$H${}^{+}$, and CO observations
• Broadband spectroscopy of astrophysical ice analogues: II. Optical constants of CO and CO${}_2$ ices in the terahertz and infrared ranges
• Exploiting Network Topology for Accelerated Bayesian Inference of Grain Surface Reaction Networks
• H2S ice sublimation dynamics: experimentally constrained binding energies, entrapment efficiencies, and snowlines
• Systems Astrochemistry: A New Doctrine for Experimental Studies
• Mapping the aliphatic hydrocarbon content of interstellar dust in the Galactic plane
• The radiative torque spin-up efficiency of ballistic dust grain aggregates
• Toward Unraveling Cyanopolyyne Surface Chemistry: A Preview on Isolated Systems From HC_{3}N to Ethyl Cyanide and Propylamine
• Reaction kinetics of CN + toluene and its implication on the productions of aromatic nitriles in the Taurus molecular cloud and Titan's atmosphere
• On the Energetics of the HCO${}^{+}$ + C $\to$ CH${}^{+}$ + CO Reaction and Some Astrochemical Implications
• Chemical templates of the Central Molecular Zone. Shock and protostellar object signatures under Galactic Center conditions
• Journey of complex organic molecules: Formation and transport in protoplanetary disks
• One-dimensional and time-dependent modelling of complex organic molecules in protostars
• The Origin of Chiral Life
• Experimental investigation of O2 diffusion and entrapment in interstellar amorphous solid water (ASW)
• Development of a glow-discharge ion-trap instrument for measuring effective radiative-association rate coefficients