Discovery of radio afterglow from most distant cosmic explosion
... Direct collapse to BH BHs may be seeds for first quasars Ideal properties to produce long duration gamma-ray bursts ...
... Direct collapse to BH BHs may be seeds for first quasars Ideal properties to produce long duration gamma-ray bursts ...
The Life Cycle of a Star
... When a high mass star dies, its iron core __________________ and the outer portion of the star _________________ causing a supernova which is very bright Depending on how large the high mass star is, following supernova it can either become a ____________________ or a ___________________ ...
... When a high mass star dies, its iron core __________________ and the outer portion of the star _________________ causing a supernova which is very bright Depending on how large the high mass star is, following supernova it can either become a ____________________ or a ___________________ ...
Photometric variability of the Pre
... Only a few decades ago the idea of continuous star formation in our galaxy was not familiar among the astronomical community. The first hypothesis of starformation assumed that all stars in the stellar systems are formed at the same time. The idea that star formation in our galaxy is a continuous pr ...
... Only a few decades ago the idea of continuous star formation in our galaxy was not familiar among the astronomical community. The first hypothesis of starformation assumed that all stars in the stellar systems are formed at the same time. The idea that star formation in our galaxy is a continuous pr ...
ASTR100 Class 01 - University of Maryland Department of
... Concept Check Two stars have the same surface temperature but different luminosities. How can that be? Answer: one is bigger than the other! Why? Thermal radiation law: objects at a given temperature emit a certain luminosity per unit surface area. Hence the more luminous star has a large ...
... Concept Check Two stars have the same surface temperature but different luminosities. How can that be? Answer: one is bigger than the other! Why? Thermal radiation law: objects at a given temperature emit a certain luminosity per unit surface area. Hence the more luminous star has a large ...
The Origin of the Elements - Indiana University Astronomy
... Large stars also fuse hydrogen into helium, and helium into carbon But their larger masses lead to higher temperatures, which allow fusion of carbon into magnesium, etc. ...
... Large stars also fuse hydrogen into helium, and helium into carbon But their larger masses lead to higher temperatures, which allow fusion of carbon into magnesium, etc. ...
10 relativity, black holes_
... How can we see something that emits no light? Look for binary systems Make sure candidate is not a neutron star! ...
... How can we see something that emits no light? Look for binary systems Make sure candidate is not a neutron star! ...
Document
... 8.9(C) interpret topographic maps and satellite views to identify land and erosional features and predict how these features may be reshaped by weathering ...
... 8.9(C) interpret topographic maps and satellite views to identify land and erosional features and predict how these features may be reshaped by weathering ...
SES4U ~ The Formation of Our Solar Systemstudentcopy
... – One possibility is that the thin disk of dust is gravitationally unstable, leading to the formation of roughly 1 kilometer size objects known as planetesimals. – Another possibility is that the flow in the disk is turbulent, so that the dust cannot settle out and form an unstable thin disk. In thi ...
... – One possibility is that the thin disk of dust is gravitationally unstable, leading to the formation of roughly 1 kilometer size objects known as planetesimals. – Another possibility is that the flow in the disk is turbulent, so that the dust cannot settle out and form an unstable thin disk. In thi ...
test corrections
... 25. What is the big bang theory? 26. At which latitude does the amount of daylight vary the most? Why? 27. Why do we use models in Earth Science? 28. How can a scientific hypothesis become a theory? 29. What is solar wind made of? 30. Draw a diagram of how Earth would look relative to the Sun on the ...
... 25. What is the big bang theory? 26. At which latitude does the amount of daylight vary the most? Why? 27. Why do we use models in Earth Science? 28. How can a scientific hypothesis become a theory? 29. What is solar wind made of? 30. Draw a diagram of how Earth would look relative to the Sun on the ...
April 15th
... • This object is about as large as our solar system, but weighs 1,200,000,000 times as much as our sun. • Gravity is about one million times as strong as on the sun. • Almost certainly this object is a black hole. ...
... • This object is about as large as our solar system, but weighs 1,200,000,000 times as much as our sun. • Gravity is about one million times as strong as on the sun. • Almost certainly this object is a black hole. ...
Astronomy 102, Spring 2003 Solutions to Review Problems
... Given that we’ve talked about how far apart stars are in the galaxy, they almost never run into each other. (It’s a different matter in the cores of globular clusters, and even right at the center of our galaxy, but consider the Solar neighborhood for now.) Thus, if there is a binary star system, al ...
... Given that we’ve talked about how far apart stars are in the galaxy, they almost never run into each other. (It’s a different matter in the cores of globular clusters, and even right at the center of our galaxy, but consider the Solar neighborhood for now.) Thus, if there is a binary star system, al ...
PowerPoint - Chandra X
... The image shows X-ray data from Chandra (purple) from the star CoRot-2A, along with optical infrared data from the Panchromatic Robotic Optical Monitoring and Polarimetry Telescopes (PROMPT) and the Two Micron All Sky Survey (2MASS). ...
... The image shows X-ray data from Chandra (purple) from the star CoRot-2A, along with optical infrared data from the Panchromatic Robotic Optical Monitoring and Polarimetry Telescopes (PROMPT) and the Two Micron All Sky Survey (2MASS). ...
Book Light
... Electrons and holes swept away from junction when a negative voltage is applied to the P-side, so no current flows in circuit ...
... Electrons and holes swept away from junction when a negative voltage is applied to the P-side, so no current flows in circuit ...
Cluster and Association Members
... and can be measured with high accuracy. Several new catalogues on this topic are now available (e.g., Dias et al. 2006). If we are able to establish the cluster membership of a BRITE target star, we get its age, distance, reddening as well as (to some extent) the overall metallicity and thus its mas ...
... and can be measured with high accuracy. Several new catalogues on this topic are now available (e.g., Dias et al. 2006). If we are able to establish the cluster membership of a BRITE target star, we get its age, distance, reddening as well as (to some extent) the overall metallicity and thus its mas ...
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. ...
VLTI
... low ionization metals in the optical spectrum, e.g. Fe II. 3. Forbidden emission lines of [Fe II] and [O I] in the optical spectrum. 4. A strong near or mid-infrared excess due to hot circumstellar dust. ...
... low ionization metals in the optical spectrum, e.g. Fe II. 3. Forbidden emission lines of [Fe II] and [O I] in the optical spectrum. 4. A strong near or mid-infrared excess due to hot circumstellar dust. ...
Earth and Beyond - Swinton Community School
... Nuclear fusion In nuclear fusion reactions, lighter nuclei are joined together (fused)…… ….to form heavier atomic nuclei. This releases massive amounts or energy. In our Sun, a typical star, hydrogen is being fused into helium, this provides the energy for life on Earth. ...
... Nuclear fusion In nuclear fusion reactions, lighter nuclei are joined together (fused)…… ….to form heavier atomic nuclei. This releases massive amounts or energy. In our Sun, a typical star, hydrogen is being fused into helium, this provides the energy for life on Earth. ...
The Hertzsprung-Russell Diagram
... 9. Label the following steps on your H-R diagram to show the series of changes that our sun has undergone since its formation 4.6 billion years ago. a. Originally, a big cloud of gas and dust called a nebula condensed to form a young, cool star called a red dwarf. In this first stage of life, our s ...
... 9. Label the following steps on your H-R diagram to show the series of changes that our sun has undergone since its formation 4.6 billion years ago. a. Originally, a big cloud of gas and dust called a nebula condensed to form a young, cool star called a red dwarf. In this first stage of life, our s ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.