OPTICAL CONSTANTS OF NH3 AND NH3:N2 AMORPHOUS ICES IN THE NEAR-INFRARED AND MID-INFRARED REGIONS

被引:23
作者
Zanchet, Alexandre [1 ]
Rodriguez-Lazcano, Yamilet [1 ]
Galvez, Oscar [1 ]
Herrero, Victor J. [1 ]
Escribano, Rafael [1 ]
Mate, Belen [1 ]
机构
[1] IEM CSIC, Inst Estruct Mat, E-28006 Madrid, Spain
关键词
ISM: abundances; methods: laboratory: solid state; planets and satellites: composition; techniques: spectroscopic; CRYSTALLINE WATER ICE; REFRACTIVE-INDEX; AMMONIA ICE; BAND STRENGTHS; PLANETARY ICES; SOLID AMMONIA; NITRIC-ACID; H2O ICE; MU-M; SPECTROSCOPY;
D O I
10.1088/0004-637X/777/1/26
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Ammonia ice has been detected on different astrophysical media ranging from interstellar medium (ISM) particles to the surface of various icy bodies of our solar system, where nitrogen is also present. We have carried out a detailed study of amorphous NH3 ice and NH3:N-2 ice mixtures, based on infrared (IR) spectra in the mid-IR (MIR) and near-IR (NIR) regions, supported by theoretical quantum chemical calculations. Spectra of varying ice thicknesses were obtained and optical constants were calculated for amorphous NH3 at 15 K and 30 K and for a NH3:N-2 mixture at 15 K over a 500-7000 cm(-1) spectral range. These spectra have improved accuracy over previous data, where available. Moreover, we also obtained absolute values for the band strengths of the more prominent IR features in both spectral regions. Our results indicate that the estimated NH3 concentration in ISM ices should be scaled upward by similar to 30%.
引用
收藏
页数:11
相关论文
共 50 条
  • [31] Converting N2 molecules into NH3 with TiO2/Fe3O4 composite covered with a thin water layer under ambient condition
    Moriya, Ichiro
    SCIENTIFIC REPORTS, 2023, 13 (01)
  • [32] Nitrogen isotopic ratios in Barnard 1: a consistent study of the N2H+, NH3, CN, HCN, and HNC isotopologues
    Daniel, F.
    Gerin, M.
    Roueff, E.
    Cernicharo, J.
    Marcelino, N.
    Lique, F.
    Lis, D. C.
    Teyssier, D.
    Biver, N.
    Bockelee-Morvan, D.
    ASTRONOMY & ASTROPHYSICS, 2013, 560
  • [33] Laser emission at 4.5 THz from 15NH3 and a mid-infrared quantum-cascade laser as a pump source
    Wienold, Martin
    Zubairova, Alsu
    Huebers, Heinz-Wilhelm
    OPTICS EXPRESS, 2020, 28 (16) : 23114 - 23121
  • [34] Photoinduced Reactions of cis,trans,cis-[PtIV(N3)2(OH)2(NH3)2] with 1-Methylimidazole
    Phillips, Hazel I. A.
    Ronconi, Luca
    Sadler, Peter J.
    CHEMISTRY-A EUROPEAN JOURNAL, 2009, 15 (07) : 1588 - 1596
  • [35] Optical properties of mid-infrared Cr2+:ZnSe single crystals grown by chemical vapor transporting with NH4Cl
    Wei, Yucheng
    Liu, Changyou
    Ma, En
    Wang, Tao
    Jie, Wanqi
    OPTICAL MATERIALS EXPRESS, 2021, 11 (03) : 664 - 673
  • [36] Investigation of optical, TD-DFT calculation and electrical conductivity in semiconducting [(CH3 )NH3 ]2ZnBr4
    Jaballi, Sawssan
    Oueslati, Abderrazek
    Ghalla, Houcine
    Foro, Sabine
    Donner, Wolfgang
    Njeh, Anouar
    JOURNAL OF MOLECULAR STRUCTURE, 2022, 1266
  • [37] Bibliographic review and new measurements of the infrared band strengths of pure molecules at 25 K: H2O, CO2, CO, CH4, NH3, CH3OH, HCOOH and H2CO
    Bouilloud, M.
    Fray, N.
    Benilan, Y.
    Cottin, H.
    Gazeau, M. -C.
    Jolly, A.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 451 (02) : 2145 - 2160
  • [38] Variations of the HCO+, HCN, HNC, N2H+, and NH3 deuterium fractionation in high-mass star-forming regions
    Pazukhin, A. G.
    Zinchenko, I. I.
    Trofimova, E. A.
    Henkel, C.
    Semenov, D. A.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2023, 526 (03) : 3673 - 3696
  • [39] Enabling efficient electrocatalytic conversion of N2 to NH3 by Ti3C2 MXene loaded with semi-metallic 1T'-MoS2 nanosheets
    Chen, Xiaoyue
    Zhang, Songge
    Qian, Xiu
    Liang, Zhangqian
    Xue, Yanjun
    Zhang, Xiaoli
    Tian, Jian
    Han, Ye
    Shao, Minhua
    APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY, 2022, 310
  • [40] Stability and Structure of Protonated Clusters of Ammonia and Water, H+(NH3)m (H2O)n
    Hvelplund, Preben
    Kurten, Theo
    Stochkel, Kristian
    Ryding, Mauritz Johan
    Nielsen, Steen Brondsted
    Uggerud, Einar
    JOURNAL OF PHYSICAL CHEMISTRY A, 2010, 114 (27) : 7301 - 7310