review
... • The fastest pulsars, called millisecond pulsars, have periods of about 1/1000 second. The reason they pulse so much faster than (for example) the Crab and Vela pulsars is that they • A. were formed from much more massive stars than were the Crab and Vela pulsars, and were spun up more as their cor ...
... • The fastest pulsars, called millisecond pulsars, have periods of about 1/1000 second. The reason they pulse so much faster than (for example) the Crab and Vela pulsars is that they • A. were formed from much more massive stars than were the Crab and Vela pulsars, and were spun up more as their cor ...
Our Sun, Sol - Hobbs High School
... is a highly magnetized, spinning neutron star with jets of particles moving almost at the speed of light streaming out above its magnetic poles. • These jets produce very powerful beams of light. • The precise periods of pulsars make them useful tools to astronomers. ...
... is a highly magnetized, spinning neutron star with jets of particles moving almost at the speed of light streaming out above its magnetic poles. • These jets produce very powerful beams of light. • The precise periods of pulsars make them useful tools to astronomers. ...
Return both exam and scantron sheet when you
... (a) Kepler. (b) Galileo. (c) Copernicus. (d) Brahe. 57. The magnetic field within the sunspot is lower than the Sun’s average magnetic field. (a) True. (b) False. 58. The Maunder minimum refers to (a) the lowest temperature at which hydrogen fusion takes place. (b) the layer on the Sun’s surface whe ...
... (a) Kepler. (b) Galileo. (c) Copernicus. (d) Brahe. 57. The magnetic field within the sunspot is lower than the Sun’s average magnetic field. (a) True. (b) False. 58. The Maunder minimum refers to (a) the lowest temperature at which hydrogen fusion takes place. (b) the layer on the Sun’s surface whe ...
Chapter14(4-7-11)
... Stellar Populations • Turns out that there are two types of stars in the Galaxy – Population I: Relatively young. Similar to the Sun. Tend to be in the galactic disk. Richer in heavy elements – Population II: Few heavy elements, very old (12-14 billion years), tend to be in the center of the galax ...
... Stellar Populations • Turns out that there are two types of stars in the Galaxy – Population I: Relatively young. Similar to the Sun. Tend to be in the galactic disk. Richer in heavy elements – Population II: Few heavy elements, very old (12-14 billion years), tend to be in the center of the galax ...
PDF version (two pages, including the full text)
... orbit of Jupiter. Gravity at the surface of Antares is so weak that it is losing mass fast enough to create a visible nebula or gas cloud around it, lit by Antares hot companion star. In the next few million years or so, Antares may explode as a supernova -so keep your eyes on the Scorpion if you're ...
... orbit of Jupiter. Gravity at the surface of Antares is so weak that it is losing mass fast enough to create a visible nebula or gas cloud around it, lit by Antares hot companion star. In the next few million years or so, Antares may explode as a supernova -so keep your eyes on the Scorpion if you're ...
L11
... The evolution of massive stars have the following general characteristics and differences to lower mass evolution 1. The electrons in their cores do not become degenerate until the final burning stages, when iron core is reached 2. Mass-loss plays an important role in the entire evolution (we will c ...
... The evolution of massive stars have the following general characteristics and differences to lower mass evolution 1. The electrons in their cores do not become degenerate until the final burning stages, when iron core is reached 2. Mass-loss plays an important role in the entire evolution (we will c ...
3 Nightly Motions
... For a star rising in northeastern sky: Stars first rise in the northeast, rise very high into the sky as they approach the meridian, and then set in the northwestern sky. ...
... For a star rising in northeastern sky: Stars first rise in the northeast, rise very high into the sky as they approach the meridian, and then set in the northwestern sky. ...
Problem Set 04
... A2. Stars are stabilized by a balance between an inward gravitational force and outward pressure due to the intense heat generated by nuclear fusion reactions taking place in the star core. As stars age they consume their fuel and the fusion reactions slow down. This can lead to a gravitational col ...
... A2. Stars are stabilized by a balance between an inward gravitational force and outward pressure due to the intense heat generated by nuclear fusion reactions taking place in the star core. As stars age they consume their fuel and the fusion reactions slow down. This can lead to a gravitational col ...
Homework #3 MHC Astronomy 100/101/110 Prof. Stage For ALL the
... Figure 2 from Schödel et al., Nature, v.417, 2002, p. 694‐696. This figure shows the observed positions and the best‐fit orbit for the star S0‐2 which orbits the galactic center. (Data is a combination of infrared and radio observations using ground‐based telescopes). a. (4pts) Using the best‐fit ...
... Figure 2 from Schödel et al., Nature, v.417, 2002, p. 694‐696. This figure shows the observed positions and the best‐fit orbit for the star S0‐2 which orbits the galactic center. (Data is a combination of infrared and radio observations using ground‐based telescopes). a. (4pts) Using the best‐fit ...
ASTRONOMY WEBQUEST…… EXPLORE THE UNIVERSE
... Date February 23, 2012 Answer all of the questions by typing them on this document. Save your work and then attach this document to an e-mail to me. I am Mr. Aguilar, your 8th grade science teacher. 1. If your home is your universe, how would you like your home to be? Would you like your home to be ...
... Date February 23, 2012 Answer all of the questions by typing them on this document. Save your work and then attach this document to an e-mail to me. I am Mr. Aguilar, your 8th grade science teacher. 1. If your home is your universe, how would you like your home to be? Would you like your home to be ...
12-1 MAIN-SEQUENCE STARS
... What evidence do astronomers have that stars really do evolve? Because all the stars in a cluster have about the same chemical composition and age, you can see the effects of stellar evolution in the H–R diagram of a cluster. Massive stars evolve faster than low-mass stars, so in a given cluster the ...
... What evidence do astronomers have that stars really do evolve? Because all the stars in a cluster have about the same chemical composition and age, you can see the effects of stellar evolution in the H–R diagram of a cluster. Massive stars evolve faster than low-mass stars, so in a given cluster the ...
What is a Scientist? - Cockeysville Middle School
... Stars are giant spheres of glowing gases. A star is powered by nuclear fusion. This is a process whereby hydrogen atoms are fused together to create helium atoms. In the process a tremendous amount of energy is given off in the form of electromagnetic waves and heat. There are billions of stars in a ...
... Stars are giant spheres of glowing gases. A star is powered by nuclear fusion. This is a process whereby hydrogen atoms are fused together to create helium atoms. In the process a tremendous amount of energy is given off in the form of electromagnetic waves and heat. There are billions of stars in a ...
Astronomy Activity: The Life-Line of the Stars
... different colors for the near stars and for the bright stars. 2. What general trends or concentrations do you see in the data? Are there generalizations you can make about bright stars? How are they different from stars that are close to the Earth? Write your answers using sentences. ...
... different colors for the near stars and for the bright stars. 2. What general trends or concentrations do you see in the data? Are there generalizations you can make about bright stars? How are they different from stars that are close to the Earth? Write your answers using sentences. ...
antarctic and associated exploration book collection
... Perhaps even more importantly, insofar as the effects were not peculiar to just his own observations, Hooke was unaware of the need to make corrections for the effects of image displacement (caused by stellar light aberration), and nutation (changes in the direction of the Earth's axis in relation t ...
... Perhaps even more importantly, insofar as the effects were not peculiar to just his own observations, Hooke was unaware of the need to make corrections for the effects of image displacement (caused by stellar light aberration), and nutation (changes in the direction of the Earth's axis in relation t ...
MS Word
... luminosity). Familiarize yourself with Figure 1 which is an empty H-R diagram. Along the bottom of the diagram are the common spectral types (we have left off O type stars since there are no O stars anywhere near the Sun). Recall that each letter category is also broken into ten subcatagories. Thus ...
... luminosity). Familiarize yourself with Figure 1 which is an empty H-R diagram. Along the bottom of the diagram are the common spectral types (we have left off O type stars since there are no O stars anywhere near the Sun). Recall that each letter category is also broken into ten subcatagories. Thus ...
Review: How does a star`s mass determine its life story?
... Two Types of Supernova Massive star supernova: Iron core of massive star reaches white dwarf limit and collapses into a neutron star, causing explosion White dwarf supernova: Carbon fusion suddenly begins as white dwarf in close binary system reaches white dwarf limit, causing total explosion ...
... Two Types of Supernova Massive star supernova: Iron core of massive star reaches white dwarf limit and collapses into a neutron star, causing explosion White dwarf supernova: Carbon fusion suddenly begins as white dwarf in close binary system reaches white dwarf limit, causing total explosion ...
Chapter 1 Introduction
... Star clusters are broadly grouped into two types: ‘open’ clusters, which contain hundreds or thousands of stars and have recently formed in the galactic disc, and ‘globular’ clusters, which are much older, dense hives of tens of thousands (up to millions) of stars found in galactic halos. Observatio ...
... Star clusters are broadly grouped into two types: ‘open’ clusters, which contain hundreds or thousands of stars and have recently formed in the galactic disc, and ‘globular’ clusters, which are much older, dense hives of tens of thousands (up to millions) of stars found in galactic halos. Observatio ...
Correct answers shown in boldface. Be sure to write your name and
... b. they did not have photographic plates to detect very faint stars c. their telescopes were too small to see the whole system d. they needed infrared detectors e. they did not realize how interstellar dust cut off their view 33. When clumps of gas first collapse into young stars, their arrival on t ...
... b. they did not have photographic plates to detect very faint stars c. their telescopes were too small to see the whole system d. they needed infrared detectors e. they did not realize how interstellar dust cut off their view 33. When clumps of gas first collapse into young stars, their arrival on t ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.