VIBRATIONALLY EXCITED HCN IN THE LUMINOUS INFRARED GALAXY NGC 4418
作者： Kazushi Sakamoto , Susanne Aalto , Aaron S. Evans , Martina C. Wiedner , David J. Wilner
DOI: 10.1088/2041-8205/725/2/L228
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摘要: Infrared pumping and its effect on the excitation of HCN molecules can be important when using rotational lines to probe dense molecular gas in galaxy nuclei. We report first extragalactic detection (sub)millimeter vibrationally excited HCN, dust-enshrouded nucleus luminous infrared NGC 4418. estimate temperature T-vib approximate 230 K between vibrational ground (v(2) = 1) states. This is most likely due radiation. At this high path through v(2) 1 state must have a strong impact level, although it may not dominant for all levels. Our observations also revealed nearly confusion-limited CO, HCO+, (HCN)-C-13, (HCN)-N-15, CS, N2H+, HC3N at lambda similar mm. Their relative intensities affected by pumping.
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F. Costagliola, S. Aalto, Vibrationally excited HC3N in NGC 4418 Astronomy and Astrophysics. ,vol. 515, pp. 421- 422 ,(2009) , 10.1051/0004-6361/200913370
F. Dumouchel, A. Faure, F. Lique, The rotational excitation of HCN and HNC by He: temperature dependence of the collisional rate coefficients Monthly Notices of the Royal Astronomical Society. ,vol. 406, pp. 2488- 2492 ,(2010) , 10.1111/J.1365-2966.2010.16826.X
G. Mauclaire, J. Lemaire, M. Heninger, S. Fenistein, D.C. Parent, R. Marx, Radiative lifetimes for an ion of astrophysical interest: HCO+ International Journal of Mass Spectrometry and Ion Processes. pp. 487- 497 ,(1995) , 10.1016/0168-1176(95)04282-P
Hemal N. Varambhia, Alexandre Faure, Jonathan Tennyson, Thierry Stoecklin, Electron-impact rotational and hyperfine excitation of HCN, HNC, DCN and DNC Monthly Notices of the Royal Astronomical Society. ,vol. 382, pp. 840- 848 ,(2007) , 10.1111/J.1365-2966.2007.12416.X
M Heninger, D Lauvergnat, J Lemaire, P Boissel, G Mauclaire, R Marx, Radiative lifetime of vibrationally excited N2H+ and N2D+ molecular ions International Journal of Mass Spectrometry. ,vol. 223, pp. 669- 678 ,(2003) , 10.1016/S1387-3806(02)00938-7
Yu Gao, Philip M. Solomon, HCN SURVEY OF NORMAL SPIRAL, INFRARED-LUMINOUS, AND ULTRALUMINOUS GALAXIES Astrophysical Journal Supplement Series. ,vol. 152, pp. 63- 80 ,(2004) , 10.1086/383003
D. J. Wilner, F. Walter, J. Wagg, D. Downes, R. Neri, T. Wiklind, A. Weiss, C. Henkel, Highly-excited CO emission in APM08279+5255 at z=3.9 arXiv: Astrophysics. ,(2007) , 10.1051/0004-6361:20066117
Lee Armus, Mika Juvela, Satoki Matsushita, Ylva Pihlstrom, Andrew J. Baker, T. J. Cox, Bradley Warren, Christine D. Wilson, Christine D. Wilson, Daisuke Iono, Paul Ho, Paul Ho, Adam Atkinson, Jennifer Golding, Melanie Krips, Glen R. Petitpas, Alison B. Peck, Min S. Yun, J. Christopher Mihos, LUMINOUS INFRARED GALAXIES WITH THE SUBMILLIMETER ARRAY. I. SURVEY OVERVIEW AND THE CENTRAL GAS TO DUST RATIO Astrophysical Journal Supplement Series. ,vol. 178, pp. 189- 224 ,(2008) , 10.1086/590910
T. J. Carroll, P. F. Goldsmith, Infrared pumping and rotational excitation of molecules in interstellar clouds The Astrophysical Journal. ,vol. 245, pp. 891- 897 ,(1981) , 10.1086/158865
C. J. Salter, T. Ghosh, B. Catinella, M. Lebron, M. S. Lerner, R. Minchin, E. Momjian, The Arecibo Arp 220 spectral census - I. Discovery of the pre-biotic molecule methanimine and new cm-wavelength transitions of other molecules The Astronomical Journal. ,vol. 136, pp. 389- 399 ,(2008) , 10.1088/0004-6256/136/1/389