Search Results - "Garrod, R T"

On the Formation of CO2 and Other Interstellar Ices by Garrod, R. T, Pauly, T

“…We investigate the formation and evolution of interstellar dust-grain ices under dark-cloud conditions, with a particular emphasis on CO2. We use a three-phase…”
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FROM PRESTELLAR TO PROTOSTELLAR CORES. II. TIME DEPENDENCE AND DEUTERIUM FRACTIONATION by AIKAWA, Y, WAKELAM, V, HERSANT, F, GARROD, R. T, HERBST, E

“…We investigate the molecular evolution and D/H abundance ratios that develop as star formation proceeds from a dense molecular cloud core to a protostellar…”
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A non-energetic mechanism for glycine formation in the interstellar medium by Ioppolo, S., Fedoseev, G., Chuang, K.-J., Cuppen, H. M., Clements, A. R., Jin, M., Garrod, R. T., Qasim, D., Kofman, V., van Dishoeck, E. F., Linnartz, H.

“…The detection of the amino acid glycine and its amine precursor methylamine on the comet 67P/Churyumov-Gerasimenko by the Rosetta mission provides strong…”
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A New Modified-Rate Approach For Gas-Grain Chemistry: Comparison with a Unified Large-Scale Monte Carlo Simulation by Garrod, R. T, Vasyunin, A. I, Semenov, D. A, Wiebe, D. S, Henning, Th

“…We compare the results of the unified Monte Carlo chemical model with the new modified-rate equation (MRE) method under a wide range of interstellar…”
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Grain Surface Models and Data for Astrochemistry by Cuppen, H. M., Walsh, C., Lamberts, T., Semenov, D., Garrod, R. T., Penteado, E. M., Ioppolo, S.

“…The cross-disciplinary field of astrochemistry exists to understand the formation, destruction, and survival of molecules in astrophysical environments…”
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The ALMA-PILS survey: detection of CH3NCO towards the low-mass protostar IRAS 16293−2422 and laboratory constraints on its formation by Ligterink, N. F. W., Coutens, A., Kofman, V., Müller, H. S. P., Garrod, R. T., Calcutt, H., Wampfler, S. F., Jørgensen, J. K., Linnartz, H., van Dishoeck, E. F.

“…Abstract Methyl isocyanate (CH3NCO) belongs to a select group of interstellar molecules considered to be relevant precursors in the formation of larger organic…”
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An Ice Age JWST inventory of dense molecular cloud ices by McClure, M. K., Rocha, W. R. M., Pontoppidan, K. M., Crouzet, N., Chu, L. E. U., Dartois, E., Lamberts, T., Noble, J. A., Pendleton, Y. J., Perotti, G., Qasim, D., Rachid, M. G., Smith, Z. L., Sun, Fengwu, Beck, Tracy L., Boogert, A. C. A., Brown, W. A., Caselli, P., Charnley, S. B., Cuppen, Herma M., Dickinson, H., Drozdovskaya, M. N., Egami, E., Erkal, J., Fraser, H., Garrod, R. T., Harsono, D., Ioppolo, S., Jiménez-Serra, I., Jin, M., Jørgensen, J. K., Kristensen, L. E., Lis, D. C., McCoustra, M. R. S., McGuire, Brett A., Melnick, G. J., Öberg, Karin I., Palumbo, M. E., Shimonishi, T., Sturm, J. A., van Dishoeck, E. F., Linnartz, H.

“…Icy grain mantles are the main reservoir of the volatile elements that link chemical processes in dark, interstellar clouds with the formation of planets and…”
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Rotation-tunnelling spectrum and astrochemical modelling of dimethylamine, CH3NHCH3, and searches for it in space by Müller, H S P, Garrod, R T, Belloche, A, Rivilla, V M, Menten, K M, Jiménez-Serra, I, Martín-Pintado, J, Lewen, F, Schlemmer, S

“…ABSTRACT Methylamine has been the only simple alkylamine detected in the interstellar medium for a long time. With the recent secure and tentative detections…”
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Molecular Clouds as Ensembles of Transient Cores by Garrod, R. T, Williams, D. A, Rawlings, J. M. C

“…We construct models of molecular clouds that are considered ensembles of transient cores. Each core is assumed to develop in the background gas of the cloud,…”
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The chemistry of transient dense cores by Garrod, R. T., Williams, D. A., Hartquist, T. W., Rawlings, J. M. C., Viti, S.

“…We investigate the chemistry of a transient density fluctuation, with properties similar to those of a dense core within a molecular cloud. We run a multipoint…”
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Rotational spectrum of 3-aminopropionitrile and searches for it in Sagittarius B2(N) by Richard, C., Belloche, A., Margulès, L., Motiyenko, R.A., Menten, K.M., Garrod, R.T., Müller, H.S.P.

“…[Display omitted] •Spectrum of 3-aminopropionitrile has been recorded with a submillimeter spectrometer.•Fits of rotational spectra in order to derive…”
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Dense and diffuse gas in dynamically active clouds by Garrod, R. T., Williams, D. A., Rawlings, J. M. C.

“…We investigate the chemical and observational implications of repetitive transient dense core formation in molecular clouds. We allow a transient density…”
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Protostellar Interferometric Line Survey of the Cygnus-X region (PILS-Cygnus) -- The role of the external environment in setting the chemistry of protostars by van der Walt, S. J, Kristensen, L. E, Calcutt, H, Jørgensen, J. K, Garrod, R. T

“…A&A 677, A127 (2023) (Abridged) Molecular lines are commonly detected towards protostellar sources. However, to get a better understanding of the chemistry of…”
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Interstellar detection and chemical modeling of iso-propanol and its normal isomer by Belloche, A, Garrod, R. T, Zingsheim, O, Müller, H. S. P, Menten, K. M

“…A&A 662, A110 (2022) The detection of a branched alkyl molecule in the high-mass star forming protocluster Sgr B2(N) permitted by the advent of ALMA revealed a…”
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A deep search for large complex organic species toward IRAS16293-2422 B at 3 mm with ALMA by Nazari, P, Cheung, J. S. Y, Asensio, J. Ferrer, Murillo, N. M, van Dishoeck, E. F, Jørgensen, J. K, Bourke, T. L, Chuang, K. -J, Drozdovskaya, M. N, Fedoseev, G, Garrod, R. T, Ioppolo, S, Linnartz, H, McGuire, B. A, Müller, H. S. P, Qasim, D, Wampfler, S. F

“…A&A 686, A59 (2024) Complex organic molecules (COMs) have been detected ubiquitously in protostellar systems. However, at shorter wavelengths (~0.8mm) it is…”
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Laboratory rotational spectroscopy of acrylamide and search for acrylamide and propionamide toward Sgr B2(N) with ALMA by Kolesniková, L, Belloche, A, Koucký, J, Alonso, E. R, Garrod, R. T, Luková, K, Menten, K. M, Müller, H. S. P, Kania, P, Urban, Š

“…Astron. Astrophys., 659, A111 (2022) Numerous complex organic molecules have been detected in the universe among which amides are considered as models for…”
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Erratum: The chemistry of transient molecular cloud cores by Garrod, R. T., Williams, D. A., Hartquist, T. W., Rawlings, J. M. C., Viti, S.

“…We assume that some, but not all, of the structure observed in molecular clouds is associated with transient features which are not bound by self-gravity. We…”
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CoCCoA: Complex Chemistry in hot Cores with ALMA. Selected oxygen-bearing species by Chen, Y, van Gelder, M. L, Nazari, P, Brogan, C. L, van Dishoeck, E. F, Linnartz, H, Jørgensen, J. K, Hunter, T. R, Wilkins, O. H, Blake, G. A, Caselli, P, Chuang, K. -J, Codella, C, Cooke, I, Drozdovskaya, M. N, Garrod, R. T, Ioppolo, S, Jin, M, Kulterer, B. M, Ligterink, N. F. W, Lipnicky, A, Loomis, R, Rachid, M. G, Spezzano, S, McGuire, B. A

“…A&A 678, A137 (2023) Complex organic molecules (COMs) have been observed to be abundant in the gas phase toward protostars. Deep line surveys have been carried…”
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Protostellar Interferometric Line Survey of the Cygnus X region (PILS-Cygnus) -- First results: observations of CygX-N30 by van der Walt, S. J, Kristensen, L. E, Jørgensen, J. K, Calcutt, H, Manigand, S, Akel, M. el, Garrod, R. T, Qiu, K

“…A&A 655, A86 (2021) (Abridged) Complex organic molecules (COMs) are commonly detected in and near star-forming regions. However, the dominant process in the…”
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Millimeter wave spectrum and search for vinyl isocyanate toward Sgr B2(N) with ALMA by Vávra, K, Kolesniková, L, Belloche, A, Garrod, R. T, Koucký, J, Uhlíková, T, Luková, K, Guillemin, J. -C, Kania, P, Müller, H. S. P, Menten, K. M, Urban, Š

“…A&A 666, A50 (2022) The interstellar detections of isocyanic acid, methyl isocyanate, and very recently also ethyl isocyanate, open the question of the…”
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