Sarbani Basu and William J. Chaplin
- Published in print:
- 2017
- Published Online:
- May 2018
- ISBN:
- 9780691162928
- eISBN:
- 9781400888207
- Item type:
- book
- Publisher:
- Princeton University Press
- DOI:
- 10.23943/princeton/9780691162928.001.0001
- Subject:
- Physics, Particle Physics / Astrophysics / Cosmology
Studies of stars and stellar populations, and the discovery and characterization of exoplanets, are being revolutionized by new satellite and telescope observations of unprecedented quality and ...
More
Studies of stars and stellar populations, and the discovery and characterization of exoplanets, are being revolutionized by new satellite and telescope observations of unprecedented quality and scope. Some of the most significant advances have been in the field of asteroseismology, the study of stars by observation of their oscillations. This book gives a comprehensive technical introduction to this discipline. It not only helps students and researchers learn about asteroseismology; it also serves as an essential instruction manual for those entering the field. The book presents readers with the foundational techniques used in the analysis and interpretation of asteroseismic data on cool stars that show solar-like oscillations. The techniques have been refined, and in some cases developed, to analyze asteroseismic data collected by the NASA Kepler mission. Topics range from the analysis of time-series observations to extract seismic data for stars to the use of those data to determine global and internal properties of the stars. Reading lists and problem sets are provided, and data necessary for the problem sets are available online.Less
Studies of stars and stellar populations, and the discovery and characterization of exoplanets, are being revolutionized by new satellite and telescope observations of unprecedented quality and scope. Some of the most significant advances have been in the field of asteroseismology, the study of stars by observation of their oscillations. This book gives a comprehensive technical introduction to this discipline. It not only helps students and researchers learn about asteroseismology; it also serves as an essential instruction manual for those entering the field. The book presents readers with the foundational techniques used in the analysis and interpretation of asteroseismic data on cool stars that show solar-like oscillations. The techniques have been refined, and in some cases developed, to analyze asteroseismic data collected by the NASA Kepler mission. Topics range from the analysis of time-series observations to extract seismic data for stars to the use of those data to determine global and internal properties of the stars. Reading lists and problem sets are provided, and data necessary for the problem sets are available online.
Sarbani Basu and William J. Chaplin
- Published in print:
- 2017
- Published Online:
- May 2018
- ISBN:
- 9780691162928
- eISBN:
- 9781400888207
- Item type:
- chapter
- Publisher:
- Princeton University Press
- DOI:
- 10.23943/princeton/9780691162928.003.0001
- Subject:
- Physics, Particle Physics / Astrophysics / Cosmology
This chapter covers the basics of stellar pulsations, which are the main preoccupation of asteroseismology. Stellar pulsations may be detected by observing the variations of a star's brightness as a ...
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This chapter covers the basics of stellar pulsations, which are the main preoccupation of asteroseismology. Stellar pulsations may be detected by observing the variations of a star's brightness as a function of time. Radial velocity observations are also used in certain cases, though most pulsating stars have been studied using brightness variations. The focus of this chapter (and the book as a whole) is on stars with solar-like pulsations—the small-amplitude oscillations that are continually excited (in a stochastic manner) and damped by turbulence in the outer convection zones of the stars. In addition to a brief history of the study of solar-type oscillations, this chapter also provides an introduction to the basic appearance and properties of the pulsation spectra of solar-like oscillators.Less
This chapter covers the basics of stellar pulsations, which are the main preoccupation of asteroseismology. Stellar pulsations may be detected by observing the variations of a star's brightness as a function of time. Radial velocity observations are also used in certain cases, though most pulsating stars have been studied using brightness variations. The focus of this chapter (and the book as a whole) is on stars with solar-like pulsations—the small-amplitude oscillations that are continually excited (in a stochastic manner) and damped by turbulence in the outer convection zones of the stars. In addition to a brief history of the study of solar-type oscillations, this chapter also provides an introduction to the basic appearance and properties of the pulsation spectra of solar-like oscillators.
Nils Andersson
- Published in print:
- 2019
- Published Online:
- January 2020
- ISBN:
- 9780198568032
- eISBN:
- 9780191878077
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/oso/9780198568032.003.0013
- Subject:
- Physics, Particle Physics / Astrophysics / Cosmology
This chapter discusses seismology aspects of, in particular, neutron stars. The fundamental mode and the pressure and gravity modes are introduced by simple examples, as are the inertial r-modes of a ...
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This chapter discusses seismology aspects of, in particular, neutron stars. The fundamental mode and the pressure and gravity modes are introduced by simple examples, as are the inertial r-modes of a rotating star. A discussion of uniform density ellipsoids leads on to the notion of the gravitational-wave-driven Chabdrasekhar–Friedman–Schutz instability.Less
This chapter discusses seismology aspects of, in particular, neutron stars. The fundamental mode and the pressure and gravity modes are introduced by simple examples, as are the inertial r-modes of a rotating star. A discussion of uniform density ellipsoids leads on to the notion of the gravitational-wave-driven Chabdrasekhar–Friedman–Schutz instability.
Nils Andersson
- Published in print:
- 2019
- Published Online:
- January 2020
- ISBN:
- 9780198568032
- eISBN:
- 9780191878077
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/oso/9780198568032.003.0018
- Subject:
- Physics, Particle Physics / Astrophysics / Cosmology
The ideas behind gravitational-wave asteroseismology are introduced and motivated by a set of phenomenological relations. The impact of general relativity on different classes of stellar oscillation ...
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The ideas behind gravitational-wave asteroseismology are introduced and motivated by a set of phenomenological relations. The impact of general relativity on different classes of stellar oscillation modes is outlined and the emergence of a new family of modes (the w-modes) associated with the dynamcis of spacetime itself is explained. The impact of relevant physics on a given neutron star’s oscillation spectrum is discussed. The instability of the f-mode in fast-spinning neutron stars is considered.Less
The ideas behind gravitational-wave asteroseismology are introduced and motivated by a set of phenomenological relations. The impact of general relativity on different classes of stellar oscillation modes is outlined and the emergence of a new family of modes (the w-modes) associated with the dynamcis of spacetime itself is explained. The impact of relevant physics on a given neutron star’s oscillation spectrum is discussed. The instability of the f-mode in fast-spinning neutron stars is considered.
