Efficiency of molecular hydrogen formation on silicates

被引：161
|
作者：
Pirronello, V
Biham, O
Liu, C
Shen, LO
Vidali, G
机构：
[1] SYRACUSE UNIV, SOLID STATE SCI & TECHNOL PROGRAM, SYRACUSE, NY 13244 USA
[2] SYRACUSE UNIV, DEPT PHYS, SYRACUSE, NY 13244 USA
[3] CATANIA UNIV, IST FIS, CATANIA, SICILY, ITALY
[4] HEBREW UNIV JERUSALEM, RACAH INST PHYS, IL-91904 JERUSALEM, ISRAEL
来源：
ASTROPHYSICAL JOURNAL | 1997年 / 483卷 / 02期
关键词：
dust; extinction; ISM; abundances; molecules; molecular processes;
D O I：
10.1086/310746
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report on laboratory measurements of molecular hydrogen formation and recombination on an olivine slab as a function of surface temperature under conditions relevant to those encountered in the interstellar medium. On the basis of our experimental evidence, we recognize that there are two main regimes of H coverage that are of astrophysical importance; for each of them we provide an expression giving the production rate of molecular hydrogen in interstellar clouds.
引用
收藏
页码：L131 / L134
页数：4
相关论文
共 50 条
  • [1] Molecular hydrogen formation on amorphous silicates under interstellar conditions
    Perets, H. B.
    Lederhendler, A.
    Biham, O.
    Vidali, G.
    Li, L.
    Swords, S.
    Congiu, E.
    Roser, J.
    Manico, G.
    Brucato, J. R.
    Pirronello, V.
    ASTROPHYSICAL JOURNAL, 2007, 661 (02) : L163 - L166
  • [2] FORMATION OF MOLECULAR OXYGEN AND OZONE ON AMORPHOUS SILICATES
    Jing, Dapeng
    He, Jiao
    Brucato, John Robert
    Vidali, Gianfranco
    Tozzetti, Lorenzo
    De Sio, Antonio
    ASTROPHYSICAL JOURNAL, 2012, 756 (01)
  • [3] Catalytic activity of interstellar grains: Formation of molecular hydrogen on amorphous silicates
    Vidali, Gianfranco
    Li, Ling
    Roser, Joseph E.
    Badman, Ryan
    ADVANCES IN SPACE RESEARCH, 2009, 43 (08) : 1291 - 1298
  • [4] Laboratory synthesis of molecular hydrogen on surfaces of astrophysical interest
    Pirronello, V
    Liu, C
    Shen, LY
    Vidali, G
    ASTROPHYSICAL JOURNAL, 1997, 475 (01) : L69 - L72
  • [5] Molecular hydrogen formation in the interstellar medium
    Cazaux, S
    Tielens, AGGM
    ASTROPHYSICAL JOURNAL, 2002, 575 (01) : L29 - L32
  • [6] Molecular hydrogen formation on astrophysically relevant surfaces
    Katz, N
    Furman, I
    Biham, O
    Pirronello, V
    Vidali, G
    ASTROPHYSICAL JOURNAL, 1999, 522 (01) : 305 - 312
  • [7] Molecular hydrogen formation on ice under interstellar conditions
    Perets, HB
    Biham, O
    Manicó, G
    Pirronello, V
    Roser, J
    Swords, S
    Vidali, G
    ASTROPHYSICAL JOURNAL, 2005, 627 (02) : 850 - 860
  • [8] The formation of vibrationally excited hydrogen molecules on carbon surfaces
    Gough, S
    Schermann, C
    Pichou, F
    Landau, M
    Cadez, I
    Hall, RI
    ASTRONOMY & ASTROPHYSICS, 1996, 305 (02) : 687 - 693
  • [9] The formation mechanism of molecular hydrogen on icy mantles of interstellar dust
    Takahashi, J
    Masuda, K
    Nagaoka, M
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1999, 306 (01) : 22 - 30
  • [10] THE FORMATION OF MOLECULAR HYDROGEN ON SILICATE DUST ANALOGS: THE ROTATIONAL DISTRIBUTION
    Gavilan, L.
    Lemaire, J. L.
    Vidali, G.
    Sabri, T.
    Jaeger, C.
    ASTROPHYSICAL JOURNAL, 2014, 781 (02)
12345