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Theory of Star Formation [PDF]
Annual Review of Astronomy and Astrophysics, 2007 We review current understanding of star formation, outlining an overall theoretical framework and the observations that motivate it. A conception of star formation has emerged in which turbulence plays a dual role, both creating overdensities to initiate gravitational contraction or collapse, and countering the effects of gravity in these overdense ...
Eve Ostriker, Christopher McKee
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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
Nielbock, Markus +5 more
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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.
Rosa Maria Gonz�lez-Delgado +1 more
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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.
Rosa Maria Gonz�lez-Delgado +1 more
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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 ...
Wuchterl, Günther, Guenther, Eike
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The Formation of Sunlike Stars
Science, 1990Understanding how stars like the sun formed constitutes one of the principal challenges confronting modern astrophysics. In recent years, advances in observational technology, particularly at infrared and millimeter wavelengths, have produced an avalanche of critical data and unexpected discoveries about the process of star formation, which is blocked ...
C J, Lada, F H, Shu
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Contemporary Physics, 2005
We review the process of star formation, detailing the theories underlying the stability of molecular clouds and their collapse to protostars, and discussing the empirical evidence and models which inform them. We give emphasis to the role that the magnetic field plays in influencing the stability of molecular clouds and hence the star formation rate ...
Antonio Chrysostomou, Phil Lucas
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We review the process of star formation, detailing the theories underlying the stability of molecular clouds and their collapse to protostars, and discussing the empirical evidence and models which inform them. We give emphasis to the role that the magnetic field plays in influencing the stability of molecular clouds and hence the star formation rate ...
Antonio Chrysostomou, Phil Lucas
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Star formation and the ages of stars
EAS Publications Series, 2014In this contribution we illustrate how the knowledge of the ages of stars is important to constrain star formation processes. We focus on two specific cases: star formation around the supermassive black hole at the center of the Galaxy and triggered star formation on the borders of Hii regions.
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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,
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Perspectives on star formation: the formation of high-mass stars
Proceedings of the International Astronomical Union, 2017AbstractThe formation process of high-mass stars has puzzled the astrophysical community for decades from both a theoretical and an observational point of view. Here, we present an overview of the current theories and status of the observational research on this field, outlining the progress achieved in recent years on our knowledge of the initial ...
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Star Formation and Star Destruction
1974Before discussing problems of star formation and star destruction it will be as well to describe some of the more important features of stellar evolution. We begin at a very early stage, when an object has recognisably become a star. This means that the object is opaque and violent mass motions have ceased.
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