An introduce of the spectrograph of the GALEX
... but has remained nearly constant for red galaxies. These results imply that the number and total stellar mass of blue galaxies have been substantially constant since z~1, whereas those of red galaxies (near L*) have been significantly rising. To explain the new red galaxies, a ``mixed'' scenario is ...
... but has remained nearly constant for red galaxies. These results imply that the number and total stellar mass of blue galaxies have been substantially constant since z~1, whereas those of red galaxies (near L*) have been significantly rising. To explain the new red galaxies, a ``mixed'' scenario is ...
lecture21
... How big is the ball of matter within the black hole and how is it configured? Those are rather meaningless questions, since nothing can emerge from the BH, so we can never observe details inside. The only things that we can know about a BH are its Mass, its electric charge, and its spin. We think ho ...
... How big is the ball of matter within the black hole and how is it configured? Those are rather meaningless questions, since nothing can emerge from the BH, so we can never observe details inside. The only things that we can know about a BH are its Mass, its electric charge, and its spin. We think ho ...
THE CONSTELLATION OCTANS, THE OCTANT
... Sigma Octantis is currently the southern pole star, and is sometimes known by the name Polaris Australis. It is the counterpart to Polaris in Ursa Minor, the northern pole star. Sigma Octantis is 25 times fainter than the North Star, which makes it too dim to be used for navigation, so it is the Sou ...
... Sigma Octantis is currently the southern pole star, and is sometimes known by the name Polaris Australis. It is the counterpart to Polaris in Ursa Minor, the northern pole star. Sigma Octantis is 25 times fainter than the North Star, which makes it too dim to be used for navigation, so it is the Sou ...
ISA_lecture01 - School of Physics
... Astrophysics has long been one of the driving forces for the advancement of physics in general. It has been closely linked to advances in quantum mechanics and nuclear physics in particular. Stellar astrophysics in particular is also firmly rooted in classical physics - the familiar laws of mechanic ...
... Astrophysics has long been one of the driving forces for the advancement of physics in general. It has been closely linked to advances in quantum mechanics and nuclear physics in particular. Stellar astrophysics in particular is also firmly rooted in classical physics - the familiar laws of mechanic ...
Astronomy Talk July 2016 - Unitarian Universalist Church of
... shore and out over the sea, and we see that we’re surrounded by mystery. ...
... shore and out over the sea, and we see that we’re surrounded by mystery. ...
Class Project Physics 1010-042, Physics 1010
... this constellation are the two brightest stars, alpha and beta centauri. These are the two brightest stars in the photo and are located just under the center of the photo. Alpha Centauri is yellow and Beta Centauri is blue. Alpha Centauri is the nearest star system to our own. Were we living in the ...
... this constellation are the two brightest stars, alpha and beta centauri. These are the two brightest stars in the photo and are located just under the center of the photo. Alpha Centauri is yellow and Beta Centauri is blue. Alpha Centauri is the nearest star system to our own. Were we living in the ...
Evolution of supermassive stars as a pathway to black hole formation
... Such models, however, beg the question of how a supermassive star might realistically form. Creating a 106 M⊙ star requires the very rapid accumulation of gas. Since the thermonuclear timescale for a star burning hydrogen at the Eddington limit is ∼ 2 Myr, independent of mass, and will be less if on ...
... Such models, however, beg the question of how a supermassive star might realistically form. Creating a 106 M⊙ star requires the very rapid accumulation of gas. Since the thermonuclear timescale for a star burning hydrogen at the Eddington limit is ∼ 2 Myr, independent of mass, and will be less if on ...
What we will do today:
... are getting farther apart all the time just like a balloon blowing up. • By drawing galaxies on the balloon, you can observe that it is not the galaxies themselves that are expanding (as you blow the balloon up over time) but the space between them, just like in the universe (over time). • It can al ...
... are getting farther apart all the time just like a balloon blowing up. • By drawing galaxies on the balloon, you can observe that it is not the galaxies themselves that are expanding (as you blow the balloon up over time) but the space between them, just like in the universe (over time). • It can al ...
Exploring the Early Universe - Solar Physics and Space Weather
... Inflation Theory: the Isotropy Problem •The temperature of microwave background radiation from all parts of the sky is incredibly uniform, the same to an accuracy of 1 part in 10000 •Point A and B, in the opposite parts of the cosmic light horizon, can not communicate with each other. •Isotropy pro ...
... Inflation Theory: the Isotropy Problem •The temperature of microwave background radiation from all parts of the sky is incredibly uniform, the same to an accuracy of 1 part in 10000 •Point A and B, in the opposite parts of the cosmic light horizon, can not communicate with each other. •Isotropy pro ...
Stellar Dynamics
... relaxation time τR of equation (4) is decreased significantly by a factor of order m/M. This is because the large mass difference induces gravitational excitations, known as grexons (also from the Latin ‘grex’ meaning ‘herd’ or ‘flock’): a collective gravitational excitation in the wake of a massive ...
... relaxation time τR of equation (4) is decreased significantly by a factor of order m/M. This is because the large mass difference induces gravitational excitations, known as grexons (also from the Latin ‘grex’ meaning ‘herd’ or ‘flock’): a collective gravitational excitation in the wake of a massive ...
PowerPoint - Chandra X
... With an age of about 200 million years this is the oldest isolated pulsar ever detected in X-rays. Among pulsar that have not been spun-up in a binary system, it is over 10 times older than the previous record holder with an X-ray detection. At a distance of 770 light years, it is one of the nearest ...
... With an age of about 200 million years this is the oldest isolated pulsar ever detected in X-rays. Among pulsar that have not been spun-up in a binary system, it is over 10 times older than the previous record holder with an X-ray detection. At a distance of 770 light years, it is one of the nearest ...
2013. CCAT. All Rights Reserved.
... Spectrograph for CCAT: Concept and Technology Development C.M. Bradford for the X-Spec study team We are developing X-Spec, a multi-object wide-band direct-detection spectrometer for CCAT. X-Spec is designed for rapid full-band (195-510 GHz), moderate resolution (R~700) spectral surveys of galaxies, ...
... Spectrograph for CCAT: Concept and Technology Development C.M. Bradford for the X-Spec study team We are developing X-Spec, a multi-object wide-band direct-detection spectrometer for CCAT. X-Spec is designed for rapid full-band (195-510 GHz), moderate resolution (R~700) spectral surveys of galaxies, ...
AST1001.ch1
... • How can we know what the universe was like in the past? — When we look to great distances we are seeing events that happened long ago because light travels at a finite speed. ...
... • How can we know what the universe was like in the past? — When we look to great distances we are seeing events that happened long ago because light travels at a finite speed. ...
August Skies
... The source of the Perseid meteor shower is actually debris from the comet SwiftTuttle. Every year, the earth passes through the debris stream left by the comet and the earth's atmosphere incinerates the particles into the glowing embers called meteors or “falling stars”. The shower peaks early after ...
... The source of the Perseid meteor shower is actually debris from the comet SwiftTuttle. Every year, the earth passes through the debris stream left by the comet and the earth's atmosphere incinerates the particles into the glowing embers called meteors or “falling stars”. The shower peaks early after ...
milkyway - University of Pittsburgh
... visible light • Canva-Paper is much closer than e.g. copier paper ...
... visible light • Canva-Paper is much closer than e.g. copier paper ...
On the Moon, this crater rules. Copernicus, King of Craters
... The photograph here shows two of Andromeda’s satellite galaxies. The round one that appears above Andromeda’s disk is called M32. The oval one below, which looks ...
... The photograph here shows two of Andromeda’s satellite galaxies. The round one that appears above Andromeda’s disk is called M32. The oval one below, which looks ...
Piscataway High School - Piscataway Township Schools
... Describe energy balance and pressure balance in a main sequence star Compare and Contrast what happens in the advanced stages of life of large, average and small stars ...
... Describe energy balance and pressure balance in a main sequence star Compare and Contrast what happens in the advanced stages of life of large, average and small stars ...
02.03 Distances in Space Assignment To prepare for this visit you
... To prepare for this visit you will create something that you can use to teach them about what we have learned. Here are some ideas: brochure video or movie Poster Presentation (PowerPoint or Word) story book ...
... To prepare for this visit you will create something that you can use to teach them about what we have learned. Here are some ideas: brochure video or movie Poster Presentation (PowerPoint or Word) story book ...
Spica The Star - Emmi
... the mass of the Earth or 1,048 times the mass of Juipiter Spicas temperature is about 457. 490541 degrees fahrenhieght and the sun is 5778 kelvin red giant. Spicas distance from the sun is 260 light years away Spica is a blue giant the sun is yellow ...
... the mass of the Earth or 1,048 times the mass of Juipiter Spicas temperature is about 457. 490541 degrees fahrenhieght and the sun is 5778 kelvin red giant. Spicas distance from the sun is 260 light years away Spica is a blue giant the sun is yellow ...
Educator`s Guide for Dark Star Adventure
... increase the colors change from red to orange, then yellow to white, and then blue. These different colors relate to the star’s “thermal radiation.” As temperatures increase, the wavelength of the emitted thermal radiation shortens, and the colors change. Star Observations It may seem challenging to ...
... increase the colors change from red to orange, then yellow to white, and then blue. These different colors relate to the star’s “thermal radiation.” As temperatures increase, the wavelength of the emitted thermal radiation shortens, and the colors change. Star Observations It may seem challenging to ...
Star formation
Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as ""stellar nurseries"" or ""star-forming regions"", collapse to form stars. As a branch of astronomy, star formation includes the study of the interstellar medium (ISM) and giant molecular clouds (GMC) as precursors to the star formation process, and the study of protostars and young stellar objects as its immediate products. It is closely related to planet formation, another branch of astronomy. Star formation theory, as well as accounting for the formation of a single star, must also account for the statistics of binary stars and the initial mass function.In June 2015, astronomers reported evidence for Population III stars in the Cosmos Redshift 7 galaxy at z = 6.60. Such stars are likely to have existed in the very early universe (i.e., at high redshift), and may have started the production of chemical elements heavier than hydrogen that are needed for the later formation of planets and life as we know it.