Lecture 6: Multiple stars
... A typical cluster has 102 – 104 stars pc3 (compared to <1 for the field) meaning that encounters are at least 102 – 104 more frequent as the collision time goes as (see also later, r is the radius of a star or stellar system): or stellar system ...
... A typical cluster has 102 – 104 stars pc3 (compared to <1 for the field) meaning that encounters are at least 102 – 104 more frequent as the collision time goes as (see also later, r is the radius of a star or stellar system): or stellar system ...
curriculum vitae
... (i) Inter University Centre for Astronomy and Astrophysics (IUCAA), Pune, Dec. 21 - 30, 2016, May 19 - July 18, 2015; May 19 - July 18, 2014; India, May 19 - July 15, 2013; Nov. 11 - 18, 2012; Dec. 17 - 27, 2011, Oct. 17 - 21, 2011, June 16 - July 05, 2009; June 30 - July 14, 2007; Nov. 19 - 25, 200 ...
... (i) Inter University Centre for Astronomy and Astrophysics (IUCAA), Pune, Dec. 21 - 30, 2016, May 19 - July 18, 2015; May 19 - July 18, 2014; India, May 19 - July 15, 2013; Nov. 11 - 18, 2012; Dec. 17 - 27, 2011, Oct. 17 - 21, 2011, June 16 - July 05, 2009; June 30 - July 14, 2007; Nov. 19 - 25, 200 ...
Stellar populations and dynamics in the Milky Way galaxy
... implied that the most metal-poor stars, assumed to be the oldest stars, were on more eccentric, lower angular momentum orbits than the more metal-rich stars. This model is based on two crucial assumptions: first, that a pressure-supported, primarily gaseous galaxy (where T Tvirial) is stable again ...
... implied that the most metal-poor stars, assumed to be the oldest stars, were on more eccentric, lower angular momentum orbits than the more metal-rich stars. This model is based on two crucial assumptions: first, that a pressure-supported, primarily gaseous galaxy (where T Tvirial) is stable again ...
The substance of gravity
... physical vacuum, due to all matter in the Universe. Although the idea of luminiferous aether as a physical medium which supports propagation of light is old and abandoned,11 we will argue for the hypothesis that the photons do embody the vacuum, however, not in the form of plain light. Specifically, ...
... physical vacuum, due to all matter in the Universe. Although the idea of luminiferous aether as a physical medium which supports propagation of light is old and abandoned,11 we will argue for the hypothesis that the photons do embody the vacuum, however, not in the form of plain light. Specifically, ...
The Universe and Galactic Formation
... Galaxy: A collection of stars, gas and dust held together by gravity ...
... Galaxy: A collection of stars, gas and dust held together by gravity ...
Producing ultra-strong magnetic fields in neutron star mergers
... production of the short class of Gamma-Ray Bursts, which recent observations suggest may originate in such mergers. In detailed magnetohydrodynamic simulations of the merger process, the fields are amplified via KelvinHelmholtz instabilities beyond magnetar field strength and may therefore represent ...
... production of the short class of Gamma-Ray Bursts, which recent observations suggest may originate in such mergers. In detailed magnetohydrodynamic simulations of the merger process, the fields are amplified via KelvinHelmholtz instabilities beyond magnetar field strength and may therefore represent ...
here
... Which of the following statements is FALSE? A. Black holes emit Hawking radiation which can be characterized as thermal radiation and it is related to pair-production/annihilation from vacuum energy near the Schwarzschild radius or event horizon B. The event horizon or Schwarzschild radius of a blac ...
... Which of the following statements is FALSE? A. Black holes emit Hawking radiation which can be characterized as thermal radiation and it is related to pair-production/annihilation from vacuum energy near the Schwarzschild radius or event horizon B. The event horizon or Schwarzschild radius of a blac ...
On Wave Nature of Matter
... indivisible particles. It only transformed into the idea of dualism "wave-particle", put forward as a compromise by de Broglie (1923). To reconcile quantum and wave representations, he suggested the existence of a "fictitious wave" (the de Broglie wave), whose frequency is consistent with the intern ...
... indivisible particles. It only transformed into the idea of dualism "wave-particle", put forward as a compromise by de Broglie (1923). To reconcile quantum and wave representations, he suggested the existence of a "fictitious wave" (the de Broglie wave), whose frequency is consistent with the intern ...
Chapter 24 Electromagnetic Waves
... deconvolution), astronomers created one of the highest resolution images of an extended object ever produced by Hubble Space Telescope. The resulting picture reveals astonishing detail. Even though Eta Carinae is more than 8,000 light-years away, structures only 10 billion miles across (about the di ...
... deconvolution), astronomers created one of the highest resolution images of an extended object ever produced by Hubble Space Telescope. The resulting picture reveals astonishing detail. Even though Eta Carinae is more than 8,000 light-years away, structures only 10 billion miles across (about the di ...
physics-132-70-chap-24-eod
... 5. Ultraviolet Waves (Produced by Very Hot Bodies, example Sun). Ozone Layer protects us from UV Waves. ...
... 5. Ultraviolet Waves (Produced by Very Hot Bodies, example Sun). Ozone Layer protects us from UV Waves. ...
A star is born: understanding the physics of star formation
... individual stars, but how entire clusters form. Just as there is an IMF for stars, there is an IMF for clusters that also needs to be understood. THE FIRST STARS The first stars in the universe formed shortly after the Big Bang out of gas that had no heavy elements such as carbon, oxygen and iron, a ...
... individual stars, but how entire clusters form. Just as there is an IMF for stars, there is an IMF for clusters that also needs to be understood. THE FIRST STARS The first stars in the universe formed shortly after the Big Bang out of gas that had no heavy elements such as carbon, oxygen and iron, a ...
Black Hole - Northern Michigan University
... Today: NASA space telescopes have discovered evidence for black holes throughout the universe ...
... Today: NASA space telescopes have discovered evidence for black holes throughout the universe ...
Schwarzschild Radius
... stuff around it as a star with the same mass would. Things just get interesting close to the black hole. Don't believe me? How about this argument. When calculating forces of gravity from objects on other objects, we talk about the radius between the two of them. Does this mean the radius from the s ...
... stuff around it as a star with the same mass would. Things just get interesting close to the black hole. Don't believe me? How about this argument. When calculating forces of gravity from objects on other objects, we talk about the radius between the two of them. Does this mean the radius from the s ...
EXAM 1 – 100 points
... An earthquake actually emits two different types of waves. The waves are a transverse wave and compression wave. A) If the compression wave to an earthquake is felt in Indy 20 seconds after the actual quake then how far from Indy did the earthquake originate (assume the compression waves move 2000 m ...
... An earthquake actually emits two different types of waves. The waves are a transverse wave and compression wave. A) If the compression wave to an earthquake is felt in Indy 20 seconds after the actual quake then how far from Indy did the earthquake originate (assume the compression waves move 2000 m ...
