Results 91 to 100 of about 238,168 (251)

Molecular Clouds and Star Formation Rate in Disk Galaxies

Open Astronomy, 2016
We use N-body/hydrodynamic simulations of a Milky Way-like galaxy to study the physical properties of giant molecular clouds and star formation rate on different spatial scales.
Vasiliev E. O., Khoperskov S. A., Khoperskov A. V.   +2 more
doaj   +1 more source

Kinetic temperatures toward X1/X2 orbit interceptions regions and Giant Molecular Loops in the Galactic center region

, 2012
Context: It is well known that the kinetic temperatures, Tkin, of the molecular clouds in the Galactic center region are higher than in typical disk clouds.
Bally, Bally, Binney, Bitran, Cheung, Chin, Cox, D. Riquelme, Danby, Ferrière, Fleck, Fukui, Genzel, Goldsmith, Goldsmith, Goldsmith, Goto, Güsten, Güsten, Ho, Hollenbach, Hüttemeister, Hüttemeister, Hüttemeister, J. Martín-Pintado, Jackson, Juvela, Kudo, L. Bronfman, Le Bourlot, Lebrón, Lee, Leung, M. A. Amo-Baladrón, Martín, Martín-Pintado, Martín-Pintado, Martín-Pintado, Mauersberger, Mauersberger, Mauersberger, Mauersberger, Mauersberger, Morris, Morris, Nagayama, Neufeld, Neufeld, Odenwald, R. Mauersberger, Riquelme, Riquelme, Rodríguez-Fernández, Rodríguez-Fernández, S. Martín, Sawada, Scalo, Tanaka, Torii, Torii, Umemoto, van der Tak, Walmsley, Watson, Wilson, Wilson, Wilson, Yusef-Zadeh, Yusef-Zadeh, Zinchenko   +69 more
core   +1 more source

Comparative Analysis of Molecular Clouds in M31, M33 and the Milky Way [PDF]

, 2007
We present BIMA observations of a 2$\arcmin$ field in the northeastern spiral arm of M31. In this region we find six giant molecular clouds that have a mean diameter of 57$\pm$13 pc, a mean velocity width of 6.5$\pm$1.2 \kms, and a mean molecular mass of
Christine D. Wilson, Fukui Y., Israel F. P., Kartik Sheth, Loinard L., Rubio M., Stuart N. Vogel, T. M. Dame   +7 more
core   +2 more sources

Multiscale Dynamical Scenario of High-mass Star Formation in an IRDC Filament G34

The Astrophysical Journal, 2023
There is growing evidence that high-mass star formation (HMSF) is a multiscale, dynamical process in molecular clouds, where filaments transport gas material between larger and smaller scales.
Sirong Pan, Hong-Li Liu, Sheng-Li Qin
doaj   +1 more source

Properties of the Molecular Clouds in NGC 205 [PDF]

, 2000
The nearby dwarf elliptical galaxy NGC 205 offers a unique opportunity for high resolution studies of the interstellar medium in an elliptical galaxy. This paper investigates the distribution of molecular gas, molecular line ratios, and the relationships between atomic gas, molecular gas, and dust in NGC 205.
arxiv   +1 more source

OH ⁺ IN DIFFUSE MOLECULAR CLOUDS [PDF]

The Astrophysical Journal, 2013
Near ultraviolet observations of OH+ and OH in diffuse molecular clouds reveal a preference for different environments. The dominant absorption feature in OH+ arises from a main component seen in CH+ (that with the highest CH+/CH column density ratio), while OH follows CN absorption.
A. J. Porras, A. J. Porras, Daniel E. Welty, Steven R. Federman, Adam M. Ritchey   +4 more
openaire   +3 more sources

ALMA Observations of Giant Molecular Clouds in the Starburst Dwarf Galaxy Henize 2-10 [PDF]

, 2018
We present new ${ }^{12}$CO(J=1-0) observations of Henize 2-10, a blue compact dwarf galaxy about 8.7 Mpc away, taken with the Atacama Large Millimeter Array. These are the highest spatial and spectral resolution observations, to date, of the molecular gas in this starburst galaxy.
arxiv   +1 more source

RETHINKING A MYSTERIOUS MOLECULAR CLOUD [PDF]

The Astrophysical Journal, 2015
Accepted for publication in ApJ. 16 pages, 13 figures.
openaire   +4 more sources

Supernova Remnants and Star Formation in the Large Magellanic Cloud

, 2010
It has often been suggested that supernova remnants (SNRs) can trigger star formation. To investigate the relationship between SNRs and star formation, we have examined the known sample of 45 SNRs in the Large Magellanic Cloud to search for associated ...
Annie Hughes, Banas, Bernasconi, Book, Boss, C.-H. Rosie Chen, Caulet, Chen, Chen, Chen, Chu, Chu, Dunne, Erik Muller, Fazio, Fukui, Fukui, Gouliermis, Gruendl, Hughes, Jorge L. Pineda, Jürgen Ott, Karna M. Desai, Klimek, Koo, Leslie W. Looney, Looney, Marshall Katz, Misselt, Mostefaoui, Nazé, Nicolet, Points, Rieke, Robert A. Gruendl, Smith, Tachibana, Tony Wong, van der Marel, Vanhala, Vanhala, Warren, Whitney, William Dluger, Williams, Williams, Yamaguchi, You-Hua Chu, Zaritsky   +48 more
core   +1 more source

Giant Molecular Clouds in RCW 106 (G333): Galactic Mini-starbursts and Massive Star Formation Induced by Supersonic Cloud–Cloud Collisions

The Astronomical Journal
To reveal the origin of the mini-starbursts in the Milky Way, we carried out large-scale CO observations toward the RCW 106 giant molecular cloud (GMC) complex using the NANTEN2 4 m radio telescope operated by Nagoya University.
Mikito Kohno, Rin I. Yamada, Kengo Tachihara, Shinji Fujita, Rei Enokiya, Kazuki Tokuda, Asao Habe, Hidetoshi Sano, Takahiro Hayakawa, Fumika Demachi, Takuto Ito, Kisetsu Tsuge, Atsushi Nishimura, Masato I. N. Kobayashi, Hiroaki Yamamoto, Yasuo Fukui   +15 more
doaj   +1 more source