Astronomers Demonstrate the Global Internet Telescope
... (JIVE) in the Netherlands, where the 9 Terabits of data were fed in real-time into a specialised supercomputer, called a 'correlator', and combined. The same research networks were then used to deliver the final data product directly to the astronomers who formed the images. Until the network infras ...
... (JIVE) in the Netherlands, where the 9 Terabits of data were fed in real-time into a specialised supercomputer, called a 'correlator', and combined. The same research networks were then used to deliver the final data product directly to the astronomers who formed the images. Until the network infras ...
2009 Assessment Schedule (90764)
... spectral type of B – F. (The Sun is a main sequence star / other stars are not main sequence stars so are at different stages in their life cycles) (a) ...
... spectral type of B – F. (The Sun is a main sequence star / other stars are not main sequence stars so are at different stages in their life cycles) (a) ...
The Star of Bethlehem: a Type Ia/Ic Supernova in the Andromeda
... Most expect the central remnant of a hypernova to be a black hole rather than a neutron star, which is the typical central remnant of a SN II. But some have argued for a neutron star (e.g, [13] ). In either case, we might expect a remnant much like the Crab Nebula (M1): a neutron star whose rotation ...
... Most expect the central remnant of a hypernova to be a black hole rather than a neutron star, which is the typical central remnant of a SN II. But some have argued for a neutron star (e.g, [13] ). In either case, we might expect a remnant much like the Crab Nebula (M1): a neutron star whose rotation ...
Integrative Studies 410 Our Place in the Universe
... • Very predictable; used as a standard candle – Estimate distances to galaxies where they occur ...
... • Very predictable; used as a standard candle – Estimate distances to galaxies where they occur ...
Where do elements come from?
... What happens to the high mass stars when they exhaust their He fuel? • They have enough gravitational energy to heat up to 6 x 108 K. – C fuses into O ...
... What happens to the high mass stars when they exhaust their He fuel? • They have enough gravitational energy to heat up to 6 x 108 K. – C fuses into O ...
Lecture 15 (pdf from the powerpoint)
... • Iron cannot be fused into any heavier element, so it collects at the center of the star • Gravity pulls the core of the star to a size smaller than the Earth’s diameter! • The core compresses so much that protons and electrons merge into neutrons, taking energy away from the core • The core collap ...
... • Iron cannot be fused into any heavier element, so it collects at the center of the star • Gravity pulls the core of the star to a size smaller than the Earth’s diameter! • The core compresses so much that protons and electrons merge into neutrons, taking energy away from the core • The core collap ...
Chapter14- Our Galaxy - SFA Physics and Astronomy
... Their pulsation periods are on the order of a few days. ...
... Their pulsation periods are on the order of a few days. ...
White Dwarfs and Neutron Stars
... Neutron Stars • Have an upper mass limit of around 3 solar masses (heavier cores of very massive stars collapse forming a black hole) • Hypothesized to exist long before the discovery of pulsars (rapidly spinning neutron stars that emit beams of radiation) ...
... Neutron Stars • Have an upper mass limit of around 3 solar masses (heavier cores of very massive stars collapse forming a black hole) • Hypothesized to exist long before the discovery of pulsars (rapidly spinning neutron stars that emit beams of radiation) ...
13 Space Photos To Remind You The Universe Is
... In death, the star’s dusty outer layers are unraveling into space, glowing from the intense ultraviolet radiation being pumped out by the hot stellar core. Planetary nebulae (like the Helix Nebula above) are actually the remains of stars that once looked a lot like our sun. These stars spend most of ...
... In death, the star’s dusty outer layers are unraveling into space, glowing from the intense ultraviolet radiation being pumped out by the hot stellar core. Planetary nebulae (like the Helix Nebula above) are actually the remains of stars that once looked a lot like our sun. These stars spend most of ...
AST301.Ch22.NeutGammBH - University of Texas Astronomy
... In binary systems: For stellar-mass black holes, strong evidence for existence of BHs comes from spectroscopic binary star systems with an invisible companion of mass greater than about 3Mo. Best candidate: Cygnus X-1. Three main lines of evidence; 1. Visible companion has mass around 25Mo. Using th ...
... In binary systems: For stellar-mass black holes, strong evidence for existence of BHs comes from spectroscopic binary star systems with an invisible companion of mass greater than about 3Mo. Best candidate: Cygnus X-1. Three main lines of evidence; 1. Visible companion has mass around 25Mo. Using th ...
ANTARES - National Optical Astronomy Observatory
... the alignment is coincidental. There are cases, however, where the interaction of association, especially across the electromagnetic spectrum, provides valuable information that can aid in the categorization of an alert. These are called combos in the antares architecture. Active galaxies are more c ...
... the alignment is coincidental. There are cases, however, where the interaction of association, especially across the electromagnetic spectrum, provides valuable information that can aid in the categorization of an alert. These are called combos in the antares architecture. Active galaxies are more c ...
When Stars Attack! In Search of Killer Supernovae
... noticed that a new and unusual star, surpassing the other stars in brilliancy, was shining ... and since I had, from boyhood, known all the stars of the heavens perfectly, it was quite evident to me that there had never been any star in that place of the sky ... I was so astonished of this sight ... ...
... noticed that a new and unusual star, surpassing the other stars in brilliancy, was shining ... and since I had, from boyhood, known all the stars of the heavens perfectly, it was quite evident to me that there had never been any star in that place of the sky ... I was so astonished of this sight ... ...
Starry Lives, Starry Skies
... The handout sheet has examples of objects in each stage, but it would be good for students to use the Web or some astronomy books to find examples for themselves. 4. Have them make a star map of the location of one object for each stage, using the Your Sky Tonight star chart. Most sky objects a ...
... The handout sheet has examples of objects in each stage, but it would be good for students to use the Web or some astronomy books to find examples for themselves. 4. Have them make a star map of the location of one object for each stage, using the Your Sky Tonight star chart. Most sky objects a ...
Stellar Evolution
... Low Mass Stars – consume fuel at a slow rate, may remain on main-sequence for up to 100 billion years, end up collapsing into white dwarfs Medium Mass Stars – go into red-giant stage, followed by collapse to white dwarf by blowing out their outer layer, and eventually light up planetary nebulae Mass ...
... Low Mass Stars – consume fuel at a slow rate, may remain on main-sequence for up to 100 billion years, end up collapsing into white dwarfs Medium Mass Stars – go into red-giant stage, followed by collapse to white dwarf by blowing out their outer layer, and eventually light up planetary nebulae Mass ...
Unit Two Worksheet – Astronomy
... It is thought that before the Big Bang, all the matter and energy in the universe was in the form of one ___. (A) extremely small volume (C) solar system (B) expanding cloud (D) galaxy ...
... It is thought that before the Big Bang, all the matter and energy in the universe was in the form of one ___. (A) extremely small volume (C) solar system (B) expanding cloud (D) galaxy ...
Stars - Robert M. Hazen
... Stars have a history – a beginning and an end 1. Stars (and planets) begin as clouds of dust and gas, called nebulae. 2. Stars radiate heat and light, which come from the energy of nuclear fusion reactions. 3. Planets form like stars, but they are too small ...
... Stars have a history – a beginning and an end 1. Stars (and planets) begin as clouds of dust and gas, called nebulae. 2. Stars radiate heat and light, which come from the energy of nuclear fusion reactions. 3. Planets form like stars, but they are too small ...
REGIONAL exam 2013
... For questions numbered 66 – 69, match the numbered sub-class of Type II supernova with the description. 66. Type IIn ...
... For questions numbered 66 – 69, match the numbered sub-class of Type II supernova with the description. 66. Type IIn ...
07-01TheColsmologicalDistanceLadder
... If you know the Earth-Mars distance, Kepler’s law RE3 = RM3 TE2 TM2 now lets you figure out the radius of Earth’s orbit. (Now we use radar to measure inter-orbit distances) ...
... If you know the Earth-Mars distance, Kepler’s law RE3 = RM3 TE2 TM2 now lets you figure out the radius of Earth’s orbit. (Now we use radar to measure inter-orbit distances) ...
File
... A star is born when gas and dust particles come together and make a cloud, called a Nebula. Gravity starts to compress the cloud, forcing the atoms to move closer. This starts a process called fusion. Fusion occurs when the atoms are so close together that they start to combine, making helium from h ...
... A star is born when gas and dust particles come together and make a cloud, called a Nebula. Gravity starts to compress the cloud, forcing the atoms to move closer. This starts a process called fusion. Fusion occurs when the atoms are so close together that they start to combine, making helium from h ...
Origin of Chemical Elements
... • What can we learn from telescopes? Modern telescopes (especially space telescopes) allow us to observe all the EM waves emitted by stars, not just visible ...
... • What can we learn from telescopes? Modern telescopes (especially space telescopes) allow us to observe all the EM waves emitted by stars, not just visible ...
Document
... You know that Tan(Ø ) = d/D Today we have accurate parallaxes for about 10,000 stars. ...
... You know that Tan(Ø ) = d/D Today we have accurate parallaxes for about 10,000 stars. ...
Universe 8e Lecture Chapter 17 Nature of Stars
... Late Evolution of Low-Mass Stars: A star of moderately low mass (about 0.4 M to about 4 M) becomes a red giant when shell hydrogen fusion begins, a horizontal-branch star when core helium fusion begins, and an asymptotic giant branch (AGB) star when the helium in the core is exhausted and shell he ...
... Late Evolution of Low-Mass Stars: A star of moderately low mass (about 0.4 M to about 4 M) becomes a red giant when shell hydrogen fusion begins, a horizontal-branch star when core helium fusion begins, and an asymptotic giant branch (AGB) star when the helium in the core is exhausted and shell he ...
Universe 8e Lecture Chapter 17 Nature of Stars
... Late Evolution of Low-Mass Stars: A star of moderately low mass (about 0.4 M to about 4 M) becomes a red giant when shell hydrogen fusion begins, a horizontal-branch star when core helium fusion begins, and an asymptotic giant branch (AGB) star when the helium in the core is exhausted and shell he ...
... Late Evolution of Low-Mass Stars: A star of moderately low mass (about 0.4 M to about 4 M) becomes a red giant when shell hydrogen fusion begins, a horizontal-branch star when core helium fusion begins, and an asymptotic giant branch (AGB) star when the helium in the core is exhausted and shell he ...
Multiple choice test questions 2, Winter Semester
... B) the cosmic background radiation and the expansion of the universe C) the cosmic background radiation and the near-critical density of the universe D) the predominance of matter over antimatter and the near-critical density of the universe E) the predominance of matter over antimatter and the larg ...
... B) the cosmic background radiation and the expansion of the universe C) the cosmic background radiation and the near-critical density of the universe D) the predominance of matter over antimatter and the near-critical density of the universe E) the predominance of matter over antimatter and the larg ...
a description of planets and stars you may see
... third-largest member of the Local Group of galaxies, which includes the Milky Way Galaxy, the Andromeda Galaxy. It is one of the most distant permanent objects that can be viewed with the naked eye. The Ring nebula (also known as M57) is a planetary nebula is located in the constellation of Lyra. It ...
... third-largest member of the Local Group of galaxies, which includes the Milky Way Galaxy, the Andromeda Galaxy. It is one of the most distant permanent objects that can be viewed with the naked eye. The Ring nebula (also known as M57) is a planetary nebula is located in the constellation of Lyra. It ...
History of supernova observation
The known history of supernova observation goes back to 185 CE, when, supernova SN 185 appeared, the oldest appearance of a supernova recorded by humankind. Several additional supernovae within the Milky Way galaxy have been recorded since that time, with SN 1604 being the most recent supernova to be observed in this galaxy.Since the development of the telescope, the field of supernova discovery has expanded to other galaxies. These occurrences provide important information on the distances of galaxies. Successful models of supernova behavior have also been developed, and the role of supernovae in the star formation process is now increasingly understood.