Results 311 to 320 of about 938,566 (341)
Some of the next articles are maybe not open access.
2004
Preface. I Star Formation in Our Galaxy. 1 Overview. 1.1 Stellar Nurseries: Orion. 1.2 Stellar Nurseries: Taurus-Auriga. 1.3 Stars and Their Evolution. 1.4 The Galactic Context. 2 The Interstellar Medium. 2.1 Galactic Gas and Its Detection. 2.2 Phases of the Interstellar Medium. 2.3 Interstellar Dust: Extinction and Thermal Emission.
Francesco Palla, Steven W. Stahler
openaire +2 more sources
Preface. I Star Formation in Our Galaxy. 1 Overview. 1.1 Stellar Nurseries: Orion. 1.2 Stellar Nurseries: Taurus-Auriga. 1.3 Stars and Their Evolution. 1.4 The Galactic Context. 2 The Interstellar Medium. 2.1 Galactic Gas and Its Detection. 2.2 Phases of the Interstellar Medium. 2.3 Interstellar Dust: Extinction and Thermal Emission.
Francesco Palla, Steven W. Stahler
openaire +2 more sources
The Formation of Massive Stars
Astronomische Nachrichten, 2004B 01 A Massive Accretion Disk in M17 B 02 A VLT/ISAAC Study of the Cluster in M17 B 03 Multi-line Observations of the ON-1 Molecular Cloud/H II Region B 04 VLA 7 mm Observations Toward the Pumping Heart of GGD27 B 05 Stellar Masers in Massive Star Forming Regions B 06 The Decay of Massive Cores of Young Star Clusters
Rolf Chini+5 more
openaire +3 more sources
1992
Our galaxy is composed of billions of stars concentrated in the galactic plane, surrounded by interstellar gas, which is mainly composed of hydrogen. About half of the hydrogen is distributed uniformly in the galaxy; the other half is concentrated in interstellar clouds.
C. De Loore, Claude Doom
openaire +2 more sources
Our galaxy is composed of billions of stars concentrated in the galactic plane, surrounded by interstellar gas, which is mainly composed of hydrogen. About half of the hydrogen is distributed uniformly in the galaxy; the other half is concentrated in interstellar clouds.
C. De Loore, Claude Doom
openaire +2 more sources
Physics Today, 1948
If research in astronomy had stopped in 1913, our knowledge of stellar evolution today would be in a satisfactory state. At that time astronomers had a plausible theory of a star's life cycle. Einstein's theory of relativity, advanced only a few years before, showed that mass and energy were interchangeable.
openaire +2 more sources
If research in astronomy had stopped in 1913, our knowledge of stellar evolution today would be in a satisfactory state. At that time astronomers had a plausible theory of a star's life cycle. Einstein's theory of relativity, advanced only a few years before, showed that mass and energy were interchangeable.
openaire +2 more sources
From Local Star Formation to Global Star Formation
Astrophysics and Space Science, 2002In this brief report we summarise the most important points raised in the course of a two-hour evening discussion session on the above topic, organised by the author. Major questions that were debated included the universality of the IMF, the history of the star formation rate in the solar neighorhood, the star formation efficiency in molecular clouds,
openaire +2 more sources
Formation of Stars and Planets
Astronomische Nachrichten, 2004A01 Modeling the Resonant Planetary System GJ 876 A02 First Classification of Dusty Protoplanets A03 IDL-Models of Infrared Emission from Dust Objects (Applied to Dust in Comets) A04 Theoretical Predicitions and Observational Tests of the Migration Hypothesis A05 Towards Characterization of Exoplanetary Spectra with the VLT ...
Günther Wuchterl, Eike W. Guenther
openaire +3 more sources
Astrophysics and Space Science, 1993
We analyse the data from narrow band Hα and [O III] CCD imaging of a sample of nearby spiral galaxies with active nuclei. The results show that the large scale star formation depends on the level of nuclear activity, with Seyfert 2 presenting the strongest disk and circum-nuclear star formation, while Seyfert 1 show very little.
Enrique Pérez, R. M. Gonzalez-Delgado
openaire +3 more sources
We analyse the data from narrow band Hα and [O III] CCD imaging of a sample of nearby spiral galaxies with active nuclei. The results show that the large scale star formation depends on the level of nuclear activity, with Seyfert 2 presenting the strongest disk and circum-nuclear star formation, while Seyfert 1 show very little.
Enrique Pérez, R. M. Gonzalez-Delgado
openaire +3 more sources
Formation, Detection, and Function of Oxygen Vacancy in Metal Oxides for Solar Energy Conversion
Advanced Functional Materials, 2022Zhiliang Wang, Rijia Lin, Lianzhou Wang
exaly
Chemically Modified Biopolymers for the Formation of Biomedical Hydrogels
Chemical Reviews, 2021Jason A Burdick
exaly