Results 111 to 120 of about 207,817 (216)

Chemical Composition of Interstellar Dust Clouds

, 2006
Starpzvaigžņu gāzu-putekļu mākoņu ķīmiskais sastāvs. Kalvāns J., Zinātniskie vadītāji Dr.phys. Šmelds I., asoc. prof. Actiņš A.. Maģistra darbs. 55 lappuses, 9 attēli, 4 tabulas, 37 literatūras avoti. Latviešu valodā.
Kalvāns, Juris
core  

Comets, carbonaceous chondrites, and interstellar clouds: Condensation of carbon [PDF]

, 1979
Comets, carbonaceous chondrites, and interstellar clouds are discussed in relation to information on interstellar dust. The formation and presence of carbon in stars, comets, and meteorites is investigated.
Field, G. B.
core  

Ultraviolet Interstellar Extinction toward High Galactic Latitudes

The Astrophysical Journal
Nearby high Galactic latitude clouds provide a unique laboratory to study the physics and structure of the Galactic interstellar medium and the properties of the interstellar dust.
Ajay Mishra, Aigen Li
doaj   +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

Unusual relative strengths of the diffuse interstellar bands in some interstellar dust clouds [PDF]

, 1986
Some of the diffuse interstellar features (DIBs) in the spectra of certain stars at high galactic latitudes (1 is greater than 15 degrees) are unusually weak or absent while others have the strength expected for their color excess.
Walker, G. A. H., Krelowski, J.
core  

A Pan-galaxy Study of Synthetic Giant Molecular Filaments: A Turbulence-dominated Life Cycle

The Astrophysical Journal Supplement Series
Recent surveys of the Galactic plane have revealed dozens of giant molecular filaments (GMFs), with lengths ranging from tens to hundreds of parsecs, yet their origins and life cycles remain debated. In this work, we analyze over 700 GMFs identified from
Zipeng Hu, Ke Wang, Mark R. Krumholz, Keyun Su   +3 more
doaj   +1 more source

The Young Ages of 70 μm Dark Clumps Inferred from Carbon Chain Chemistry

The Astrophysical Journal
The physical conditions of the earliest environment of high-mass star formation are currently poorly understood. To that end, we present observations of the carbon chain molecules HC _5 N, CCS, and HC _7 N in the 22–25 GHz band toward 12 high-mass 70 μ m
Kadin Worthen, Brian E. Svoboda, David S. Meier, Juergen Ott, Rachel Friesen, Jennifer Patience, Yancy Shirley   +6 more
doaj   +1 more source

Hierarchical Structure and Self-gravity in the Rosette Molecular Cloud

The Astrophysical Journal
We analyze the hierarchical structure in the Rosette molecular cloud using ^13 CO J = 1–0 data from the Milky Way Imaging Scroll Painting survey with a nonbinary Dendrogram algorithm that allows multiple branches to emerge from parent structures. A total
Suziye He, Yuehui Ma, Hongchi Wang, Renjie Shen, Miaomiao Zhang, Chong Li, Zhenyi Yue, Xiangyu Ou, Xuepeng Chen   +8 more
doaj   +1 more source

Pathway to the identification of C60+ in diffuse interstellar clouds. [PDF]

Philos Trans A Math Phys Eng Sci, 2016
Maier JP, Campbell EK.
europepmc   +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