Results 1 to 10 of about 110,978 (225)

Gas stripping by radiation drag from an interstellar cloud

, 2004
We perform two-dimensional hydrodynamic simulation on the gas stripping by radiation drag from an interstellar cloud moving in uniform radiation fields.
Ferrarese, Ferrarese, Fortner, Fukue, Fukue, Fukue, Gebhardt, Gebhardt, Ho, Jun'ichi Sato, Kawakatu, Kawakatu, Kawakatu, Keisuke Sawada, Kormendy, Kormendy, Lamb, Laor, Loeb, Magorrian, Masayuki Umemura, McLure, McLure, Merrifield, Merritt, Merritt, Meyer, Mihalas, Miller, Mineshige, Miyoshi, Mori, Nakahashi, Nelson, Ohsuga, Poynting, Richstone, Robertson, Salucci, Sarzi, Shingo Matsuyama, Tsuribe, Tsuribe, Umemura, Umemura, Umemura, Umemura, Umemura, Wandel, Wandel   +49 more
core   +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

Carbon Chemistry in interstellar clouds [PDF]

arXiv, 2002
We discuss new developments of interstellar chemistry, with particular emphasis on the carbon chemistry. We confirm that carbon chains and cycles are ubiquitous in the ISM and closely chemically related to ea ch other, and to carbon. Investigation of the carbon budget in shielded and UV illuminated gas shows that the inventory of interstellar molecules
arxiv  

Impact of Protostellar Outflow on Star Formation: Effects of Initial Cloud Mass

, 2011
Star formation efficiency controlled by the protostellar outflow in a single cloud core is investigated by three-dimensional resistive MHD simulations. Starting from the prestellar cloud core, the star formation process is calculated until the end of the
André, André, Arce, Arce, Bally, Banerjee, Bate, Bate, Bate, Blandford, Bontemps, Bürzle, Chen, Chen, Commerçon, Crutcher, Curtis, Duffin, Dunham, Enoch, Gammie, Hennebelle, Hennebelle, Hunter, Inutsuka, Kratter, Kunz, Könyves, Larson, Lodato, Machida, Machida, Machida, Machida, Machida, Machida, Machida, Machida, Machida, Machida, Machida, Machida, Masahiro N. Machida, Masunaga, Masunaga, Matsumoto, Matsumoto, Matzner, Motte, Mouschovias, Nakamura, Nakano, Onishi, Pudritz, Rice, Saigo, Shu, Tomida, Tomisaka, Tomisaka, Tomisaka, Tomoaki Matsumoto, Truelove, Tsukamoto, Vorobyov, Walch, Winkler, Wu   +67 more
core   +1 more source

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

Anomalous Neutral Hydrogen Column Densities in Local Interstellar Medium Clouds

The Astrophysical Journal
Analysis of high-resolution spectra of the hydrogen and deuterium Ly α lines provides measurements of interstellar neutral hydrogen column densities N (H i ) to 113 stars within 50 pc of the Sun. Plots of N (H i ) versus distance through the LIC, G, Mic,
Jeffrey L. Linsky, Seth Redfield
doaj   +1 more source

The Role of Magnetic Field in Molecular Cloud Formation and Evolution

Frontiers in Astronomy and Space Sciences, 2019
We review the role that magnetic field may have on the formation and evolution of molecular clouds. After a brief presentation and main assumptions leading to ideal MHD equations, their most important correction, namely the ion-neutral drift is described.
Patrick Hennebelle, Patrick Hennebelle, Shu-ichiro Inutsuka   +2 more
doaj   +1 more source

The Structure of the Local Interstellar Medium IV: Dynamics, Morphology, Physical Properties, and Implications of Cloud-Cloud Interactions [PDF]

arXiv, 2007
We present an empirical dynamical model of the local interstellar medium based on 270 radial-velocity measurements for 157 sight lines toward nearby stars. Physical-parameter measurements (i.e., temperature, turbulent velocity, depletions) are available for 90 components, or one-third of the sample, enabling initial characterizations of the physical ...
arxiv  

The Local Leo Cold Cloud and New Limits on a Local Hot Bubble

, 2011
We present a multi-wavelength study of the local Leo cold cloud (LLCC), a very nearby, very cold cloud in the interstellar medium. Through stellar absorption studies we find that the LLCC is between 11.3 pc and 24.3 pc away, making it the closest known ...
Carl Heiles, Crovisier, David M. Meyer, Haslam, Heiles, Heitsch, J. E. G. Peek, J. T. Lauroesch, Kathryn M. G. Peek, Koutroumpa, Kuntz, Kuntz, Lauroesch, Lisse, Meyer, Miville-Deschênes, Nidever, Peek, Peek, Redfield, Redfield, Schlegel, Sfeir, Snowden, Trümper, van Leeuwen, Verschuur, Vázquez-Semadeni, Wolfire   +28 more
core   +1 more source