Search Results - "Neufeld, D. A"

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  1. 1

    Reevaluation of the Cosmic-Ray Ionization Rate in Diffuse Clouds by Obolentseva, M., Ivlev, A. V., Silsbee, K., Neufeld, D. A., Caselli, P., Edenhofer, G., Indriolo, N., Bisbas, T. G., Lomeli, D.

    Published in The Astrophysical journal (01-10-2024)
    “…Abstract All current estimates of the cosmic-ray (CR) ionization rate rely on assessments of the gas density along the probed sight lines. Until now, these…”
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    The Abundance of Carbon Dioxide Ice in the Quiescent Intracloud Medium by Whittet, D. C. B, Shenoy, S. S, Bergin, E. A, Chiar, J. E, Gerakines, P. A, Gibb, E. L, Melnick, G. J, Neufeld, D. A

    Published in The Astrophysical journal (20-01-2007)
    “…We present new observations with the Infrared Spectrograph on board the Spitzer Space Telescope of the solid-CO sub(2) absorption feature near 15 km in the…”
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  3. 3

    CHEMICAL ANALYSIS OF A DIFFUSE CLOUD ALONG A LINE OF SIGHT TOWARD W51: MOLECULAR FRACTION AND COSMIC-RAY IONIZATION RATE by INDRIOLO, Nick, NEUFELD, D. A, GERIN, M, GEBALLE, T. R, BLACK, J. H, MENTEN, K. M, GOICOECHEA, J. R

    Published in The Astrophysical journal (20-10-2012)
    “…Absorption lines from the molecules OH super(+), H sub(2)O+, and (ProQuest: Formulae and/or non-USASCII text omitted) have been observed in a diffuse molecular…”
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  4. 4

    Detection of Acetylene toward Cepheus A East with Spitzer by Sonnentrucker, P, González-Alfonso, E, Neufeld, D. A

    Published in The Astrophysical journal (10-12-2007)
    “…The first map of interstellar acetylene (C sub(2)H sub(2)) has been obtained with the Infrared Spectrograph on board the Spitzer Space Telescope. A spectral…”
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  5. 5

    Constraints on the Cosmic-Ray Ionization Rate in the z ∼ 2.3 Lensed Galaxies SMM J2135-0102 and SDP 17b from Observations of OH+ and H2O by Indriolo, Nick, Bergin, E. A., Falgarone, E., Godard, B., Zwaan, M. A., Neufeld, D. A., Wolfire, M. G.

    Published in The Astrophysical journal (01-10-2018)
    “…Cosmic rays are predominantly accelerated in shocks associated with star formation such as supernova remnants and stellar wind bubbles, so the cosmic-ray flux…”
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    Detection of Water in the Shocked Gas Associated with IC 443: Constraints on Shock Models by Snell, R. L, Hollenbach, D, Howe, J. E, Neufeld, D. A, Kaufman, M. J, Melnick, G. J, Bergin, E. A, Wang, Z

    Published in The Astrophysical journal (20-02-2005)
    “…We have used the Submillimeter Wave Astronomy Satellite (SWAS) to observe the ground-state 1 sub(10) arrow right 1 sub(01) transition of ortho-H sub(2)O at 557…”
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  8. 8

    Fully Sampled Maps of Ices and Silicates in Front of Cepheus A East with the Spitzer Space Telescope by Sonnentrucker, P, Neufeld, D. A, Gerakines, P. A, Bergin, E. A, Melnick, G. J, Forrest, W. J, Pipher, J. L, Whittet, D. C. B

    Published in The Astrophysical journal (01-01-2008)
    “…We report the first fully sampled maps of the distribution of interstellar CO sub(2) ices, H sub(2)O ices, and total hydrogen nuclei, as inferred from the 9.7…”
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    The H2O Spectrum of the Massive Protostar AFGL 2136 IRS 1 from 2 to 13 μm at High Resolution: Probing the Circumstellar Disk by Indriolo, Nick, Neufeld, D A, Barr, A G, Boogert, A C A, DeWitt, C N, Karska, A, Montiel, E J, Richter, M J, A G G M Tielens

    Published in The Astrophysical journal (01-05-2020)
    “…We have observed the massive protostar AFGL 2136 IRS 1 in multiple wavelength windows in the near- to mid-infrared at high (∼3 km s−1) spectral resolution…”
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  11. 11

    HERSCHEL/PACS SPECTROSCOPIC SURVEY OF PROTOSTARS IN ORION: THE ORIGIN OF FAR-INFRARED CO EMISSION by Manoj, P, Watson, D M, Neufeld, D A, Megeath, S T, Vavrek, R, Yu, Vincent, Visser, R, Bergin, E A, Fischer, W J, Tobin, J J

    Published in The Astrophysical journal (01-02-2013)
    “…We present far-infrared (57-196 mu m) spectra of 21 protostars in the Orion molecular clouds. These were obtained with the Photo-detector Array Camera and…”
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    THE ABUNDANCE, ORTHO/PARA RATIO, AND DEUTERATION OF WATER IN THE HIGH-MASS STAR-FORMING REGION NGC 6334 I by EMPRECHTINGER, M, Lis, D C, Rolffs, R, Schilke, P, Monje, R R, Comito, C, Ceccarelli, C, Neufeld, D A, VAN DER TAK, F F S

    Published in The Astrophysical journal (01-03-2013)
    “…(ProQuest: ... denotes formulae and/or non-USASCII text omitted) We present Herschel/HIFI observations of 30 transitions of water isotopologues toward the…”
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    HYDROGEN CHLORIDE IN DIFFUSE INTERSTELLAR CLOUDS ALONG THE LINE OF SIGHT TO W31C (G10.6-0.4) by Monje, R R, Lis, D C, Roueff, E, Gerin, M, De Luca, M, Neufeld, D A, Godard, B, Phillips, T G

    Published in The Astrophysical journal (10-04-2013)
    “…We report the detection of hydrogen chloride, HCl, in diffuse molecular clouds on the line of sight toward the star-forming region W31C (G10.6-0.4). The J =…”
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  16. 16

    WATER ABSORPTION FROM GAS VERY NEAR THE MASSIVE PROTOSTAR AFGL 2136 IRS 1 by INDRIOLO, NICK, Neufeld, D A, SEIFAHRT, A, Richter, M J

    Published in The Astrophysical journal (10-10-2013)
    “…We present ground-based observations of the [nu] sub(1) and [nu] sub(3) fundamental bands of H sub(2)O toward the massive protostar AFGL 2136 IRS 1,…”
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    Bone growth is induced by nail transplantation in amputated proximal phalanges by Mohammad, K S, Day, F A, Neufeld, D A

    Published in Calcified tissue international (01-11-1999)
    “…Mammals are able to regrow the tips of amputated fingers and toes. However, regrowth is limited to regions covered by, and is dependent upon, the presence of…”
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    HYDROGEN FLUORIDE TOWARD LUMINOUS NEARBY GALAXIES: NGC 253 AND NGC 4945 by Monje, R R, Lord, S, Falgarone, E, Lis, D C, Neufeld, D A, Phillips, T G, Gusten, R

    Published in The Astrophysical journal (10-04-2014)
    “…We present the detection of hydrogen fluoride (HF) in two luminous nearby galaxies, NGC 253 and NGC 4945 using the Heterodyne Instrument for the Far-Infrared…”
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  20. 20

    An ecosystem approach to planning for groundwater: The case of Waterloo Region, Ontario, Canada by Neufeld, DA

    Published in Hydrogeology journal (01-05-2000)
    “…Sustaining the human-ecological benefits of groundwater requires carefully planned strategies for reducing the cumulative risks posed by diverse human actions…”
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