Results 141 to 150 of about 823,770 (310)

The Fractal Dimension of Projected Clouds

, 2005
The interstellar medium seems to have an underlying fractal structure which can be characterized through its fractal dimension. However, interstellar clouds are observed as projected two-dimensional images, and the projection of a tri-dimensional fractal
Beech M., Beech M., Emilio J. Alfaro, Enrique Perez, Falgarone E., Hetem A., Larson R. B., Nestor Sanchez, Stutzki J., Vogelaar M. G. R.   +9 more
core   +1 more source

The Expansion of an Interstellar Gas-Cloud into a Vaccum* [PDF]

, 1950
G. C. McVittie
openalex   +1 more source

CN and HCN in Dense Interstellar Clouds

, 2005
We present a theoretical investigation of CN and HCN molecule formation in dense interstellar clouds. We study the gas-phase CN and HCN production efficiencies from the outer photon-dominated regions (PDRs) into the opaque cosmic-ray dominated cores.
Amiel Sternberg, Bachiller R., Bachiller R., de Boisanger C., Flower D. R., Fuente A., Gai I. Boger, Greaves J. S., Herbst E., Jansen D. J., Le Bourlot J., Le Bourlot J., Lee H.-H., Lindqvist M., Messing I., Pineau des Forets G., Schilke P., Simon R., Storzer H., Truong-Bach, Viala Y. P., Vikor L.   +21 more
core   +2 more sources

The Gaseous Clouds of Interstellar Space [PDF]

, 1948
W. S. Adams
openalex   +1 more source

Identification of Galactic H I Counterpart of the Large [O iii] Emission Structure 1 2 Southeast of M31

The Astronomical Journal
Strottner–Drechsler–Sainty Object 1 (SDSO1) is a faint [O iii ] emission nebula spanning 1 $\mathop{.}\limits^{^\circ }5$ , discovered southeast of M31.
Tiantian Liang, Jie Wang, Tao Wang, Haibo Yuan, Ruoyi Zhang, Zhiyu Zhang, Chao-Wei Tsai, Ping Zhou, Xiaohui Sun, Hu Zou, Yingjie Jing, Chen Xu, Zhipeng Hou, Yann Sainty, Marcel Drechsler, Xavier Strottner, Ziming Liu, Qingze Chen, Zerui Liu   +18 more
doaj   +1 more source

Physical-chemical processes in a protoplanetary cloud [PDF]

Physical-chemical processes in a protoplanetary cloud are discussed. The following subject areas are covered: (1) characteristics of the chemical composition of molecular interstellar clouds; (2) properties and physico-chemical process in the genesis of ...
Lavrukhina, Avgusta K.
core   +1 more source

Grain Temperatures in Interstellar Dust Clouds [PDF]

, 1969
M. Werner, E. E. Salpeter
openalex   +1 more source

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley   +1 more source

Gas Kinematics and Dynamics of Carina Pillars: A Case Study of G287.76-0.87

The Astrophysical Journal
We study the kinematics of a pillar, namely G287.76-0.87, using three rotational lines of ^12 CO(5-4), ^12 CO(8-7), ^12 CO(11-10), and a fine structure line of [O i ] 63 μ m in southern Carina observed by SOFIA/GREAT.
Ngo-Duy Tung, Le Ngoc Tram, Archana Soam, William T. Reach, Edwin Das, Ed Chambers, Blesson Mathew, Heiko Richter   +7 more
doaj   +1 more source

Interstellar grain chemistry and organic molecules [PDF]

The detection of prominant infrared absorption bands at 3250, 2170, 2138, 1670 and 1470 cm(-1) (3.08, 4.61, 4.677, 5.99 and 6.80 micron m) associated with molecular clouds show that mixed molecular (icy) grain mantles are an important component of the ...
Allamandola, L. J., Sandford, S. A.
core   +1 more source