Results 91 to 100 of about 54,240 (242)

Analysis of ultraviolet spectrophotometric data from Copernicus [PDF]

Ultraviolet spectral data from the OAO 3 satellite are being used to study interstellar absorption lines and stellar and circumstellar lines in hot stars.
Snow, T. P., Jr.
core   +1 more source

Organic Molecules in Translucent Interstellar Clouds [PDF]

Origins of Life and Evolution of Biospheres, 2014
Absorption spectra of translucent interstellar clouds contain many known molecular bands of CN, CH+, CH, OH, OH(+), NH, C2 and C3. Moreover, one can observe more than 400 unidentified absorption features, known as diffuse interstellar bands (DIBs), commonly believed to be carried by complex, carbon-bearing molecules.
openaire   +2 more sources

Cosmic-Ray Induced Diffusion in Interstellar Ices

Open Astronomy, 2014
Cosmic rays are able to heat interstellar dust grains. This may enhance molecule mobility in icy mantles that have accumulated on the grains in dark cloud cores.
Kalvāns Juris
doaj   +1 more source

Molekul antar Bintang dan Struktur Galaksi

Journal of Mathematical and Fundamental Sciences, 2019
Ringkasan. Tulisan ini merupakan tinjauan ulang penemuan molekul di dalam ruang antarbintang, kemungkinan pembentukannya dan kaitannya dengan struktur Galaktika. Abstract.
Bambang Hidajat
doaj  

A study of X-ray point sources in Heiles Clouds 1 and 2

Acta Polytechnica
Star formation takes place in the coldest parts of molecular clouds, beginning in the densest, collapsing regions of filaments. As pre-main sequence stars are luminous X-ray emitters, X-ray point sources can serve as effective tracers of YSOs.
Nóra Varga, András Péter Joó, Bendegúz Koncz   +2 more
doaj   +1 more source

The Solar Galactic Environment

, 2004
Combined heliosphere-astronomical data and models enrich our understanding both of effects the solar galactic environment might have on the inner heliosphere, and of interstellar clouds.
Frisch, P. C.
core   +3 more sources

INTERSTELLAR CLOUDS BY SEARCHLIGHT

The Astronomical Journal, 2009
Interpretation of high-resolution observations of absorption by interstellar clouds of radiation from extragalactic sources should include the effect of the Earth's motion with respect to the source. High-resolution H I absorption profiles that are not heavily blended have been published for eight sources.
openaire   +1 more source

Organic Chemistry in the H2-bearing, CO-rich Interstellar Ice Layer at Temperatures Relevant to Dense Cloud Interiors

The Astrophysical Journal
Ice chemistry in the dense, cold interstellar medium (ISM) is probably responsible for the formation of interstellar complex organic molecules (COMs). Recent laboratory experiments performed at T ∼ 4 K have shown that irradiation of CO:N _2 ice samples ...
Rafael Martín-Doménech, Alexander DelFranco, Karin I. Öberg, Mahesh Rajappan   +3 more
doaj   +1 more source

Interstellar absorptions and shocked clouds towards supernova remnant RX J0852.0-4622

, 2012
We present results of survey of interstellar absorptions towards supernova remnant (SNR) RX J0852.0-4622. The distribution of KI absorbers along the distance of the background stars is indicative of a local region (d100km/s towards three stars and ...
A. F. Iyudin, Aschenbach, Bertin, Bocchino, Borkowski, Braun, Cha, Cha, Cox, Crawford, Crawford, Danks, Draine, Famaey, Friedman, Gredel, Iyudin, Iyudin, Jenkins, Jenkins, Jura, Klein, Kritsuk, Kupka, McKee, N. N. Chugai, Patnaude, Rots, Routly, Savage, Shull, Stanimirović, Sutherland, Tielens, Tsymbal, Wallerstein, Welty, Welty, Welty, Welty, Woermann, Wolfire, Wolfire, Yu. V. Pakhomov   +43 more
core   +1 more source

Fantastic Striations and Where to Find Them: The Origin of Magnetically Aligned Striations in Interstellar Clouds [PDF]

, 2017
Che-Yu Chen, Zhi-Yun Li, Patrick K. King, Laura M. Fissel   +3 more
openalex   +1 more source