Black Hole Demonstration
... 2. The layers of foil represent the different gas layers of the star, and the balloon that gives them their shape is analogous to the hot burning core of the star. Inside the core, the heat created by thermonuclear fusion exerts a pressure on the gas layers of the star, which keeps them from collaps ...
... 2. The layers of foil represent the different gas layers of the star, and the balloon that gives them their shape is analogous to the hot burning core of the star. Inside the core, the heat created by thermonuclear fusion exerts a pressure on the gas layers of the star, which keeps them from collaps ...
Chapter 20
... Massive than the Sun A star of more than 8 solar masses can fuse elements far beyond carbon in its core, leading to a very different fate. Its path across the H-R diagram is essentially a straight line—it stays at just about the same luminosity as it cools off. Eventually the star dies in a violent ...
... Massive than the Sun A star of more than 8 solar masses can fuse elements far beyond carbon in its core, leading to a very different fate. Its path across the H-R diagram is essentially a straight line—it stays at just about the same luminosity as it cools off. Eventually the star dies in a violent ...
slides
... Cosmic address of the Earth: Cosmic Web → Virgo super cluster → Local group of clusters → Milky way→ Solar System → Earth Our ancestors thought Earth was at the center and rest of the universe revolved around it. Now we know we are so insignificant compared to the Universe! ...
... Cosmic address of the Earth: Cosmic Web → Virgo super cluster → Local group of clusters → Milky way→ Solar System → Earth Our ancestors thought Earth was at the center and rest of the universe revolved around it. Now we know we are so insignificant compared to the Universe! ...
AN INTRODUCTION TO THE STARS AND CONSTELLATIONS
... Sky maps come in many types and shapes. Typical examples are the small, portable star wheel locator, the celestial globe with stellar objects distributed across the surface of a sphere, and the flat star map that is often published in astronomy magazines or mounted on the walls of classrooms. But th ...
... Sky maps come in many types and shapes. Typical examples are the small, portable star wheel locator, the celestial globe with stellar objects distributed across the surface of a sphere, and the flat star map that is often published in astronomy magazines or mounted on the walls of classrooms. But th ...
January - WVU Planetarium - West Virginia University
... Saturn occults - or passes in front of - the Crab Nebula on the evening of January 4. Afterwards, Saturn slowly drifts westward (left to right) through Taurus, staying within the vicinity of the Cra b throughout the month. But don't expect easy telescopic viewing of the Crab Nebula right now, for th ...
... Saturn occults - or passes in front of - the Crab Nebula on the evening of January 4. Afterwards, Saturn slowly drifts westward (left to right) through Taurus, staying within the vicinity of the Cra b throughout the month. But don't expect easy telescopic viewing of the Crab Nebula right now, for th ...
Advances in Environmental Biology Approach Mahin Shahrivar and
... 4- Small white body phase: during thousands years, the side monster gets evaporated. The left core is called white body [23]. 5- Black body phase: since the white bodies do not have enough combustion to be melted, they will be cold and cold over billion years and finally they will be turned into a b ...
... 4- Small white body phase: during thousands years, the side monster gets evaporated. The left core is called white body [23]. 5- Black body phase: since the white bodies do not have enough combustion to be melted, they will be cold and cold over billion years and finally they will be turned into a b ...
Notes 6 - University of Northern Iowa
... Hot, surface temperatures ranging from 5000 – 80,000 K Core temperature of ~107 K. Temperature decreases as it ages Small radius, approximately the size of the Earth, around 6000 km. Masses are not too diverse, typically only 0.6 M Maximum mass defined by the Chandrasekhar limit (equati ...
... Hot, surface temperatures ranging from 5000 – 80,000 K Core temperature of ~107 K. Temperature decreases as it ages Small radius, approximately the size of the Earth, around 6000 km. Masses are not too diverse, typically only 0.6 M Maximum mass defined by the Chandrasekhar limit (equati ...
PowerPoint
... • Quantum mechanics– electrons can be wave-like – Electrons around nucleus have certain orbits– defines emission and absorption of each atom – When excited, atoms emit certain lines (like in class)– fingerprint or barcode of atom ...
... • Quantum mechanics– electrons can be wave-like – Electrons around nucleus have certain orbits– defines emission and absorption of each atom – When excited, atoms emit certain lines (like in class)– fingerprint or barcode of atom ...
Metallicity maps
... Ram-pressure stripping can produce considerably more metals than galactic winds (depending on cluster mass and other cluster properties) Schindler et al. 2005, Kapferer et al. 2007, 2009 ...
... Ram-pressure stripping can produce considerably more metals than galactic winds (depending on cluster mass and other cluster properties) Schindler et al. 2005, Kapferer et al. 2007, 2009 ...
Chapter 7: The Galaxy, structure and content File
... The term thick disc is usually given to a distribution of stars that is more extended in the vertical direction (perpendicular to the plane) than the main Galactic disc (the thin disc). The term is associated with stars, not gas. It consists of moderately metalpoor, older stars, with [Fe/H] close to ...
... The term thick disc is usually given to a distribution of stars that is more extended in the vertical direction (perpendicular to the plane) than the main Galactic disc (the thin disc). The term is associated with stars, not gas. It consists of moderately metalpoor, older stars, with [Fe/H] close to ...
TOOLS IN ASTRONOMY SPECTROSCOPY
... 2. Understand how stellar spectra are classified as A, B, C, D, E and so on, based on prominent characteristics. 3. Understand how stellar spectra are related to composition and temperature. Introduction: Classifying stars based on brightness is somewhat problematic. A star’s apparent brightness can ...
... 2. Understand how stellar spectra are classified as A, B, C, D, E and so on, based on prominent characteristics. 3. Understand how stellar spectra are related to composition and temperature. Introduction: Classifying stars based on brightness is somewhat problematic. A star’s apparent brightness can ...
Lesson 13 - Oregon State University
... short lifetimes, now extinct • Population II stars (H, He, 1% heavier elements) • Population I stars (H, He, 2-5% heavier elements) Includes our sun. ...
... short lifetimes, now extinct • Population II stars (H, He, 1% heavier elements) • Population I stars (H, He, 2-5% heavier elements) Includes our sun. ...
1Oct_2014
... – Objects with low temperatures have atoms that are not moving much – Objects with high temperatures have atoms that are moving around very rapidly ...
... – Objects with low temperatures have atoms that are not moving much – Objects with high temperatures have atoms that are moving around very rapidly ...
File - We All Love Science
... White Dwarfs? • After ejection of planetary nebula shell, the core is what’s left. That’s our white dwarf • Mainly C and O2, trace H and He on crust • Cools rapidly (by universal standards) • Eventually dies out, like an ember in a fire • Becomes so dark referred to as a black dwarf ...
... White Dwarfs? • After ejection of planetary nebula shell, the core is what’s left. That’s our white dwarf • Mainly C and O2, trace H and He on crust • Cools rapidly (by universal standards) • Eventually dies out, like an ember in a fire • Becomes so dark referred to as a black dwarf ...
document
... Frequency: the number of wave cycles per unit of time that are registered at a given point in space. (referred to by Greek letter n [nu]) n is inversely proportional to wavelength ...
... Frequency: the number of wave cycles per unit of time that are registered at a given point in space. (referred to by Greek letter n [nu]) n is inversely proportional to wavelength ...
PH607lec12-10agn2
... Check for consistency: Schwarzschild radius is the radius where the “escape velocity” equals the speed of light around a black hole of mass M: RS = 2GM/c2 It relates mass and size! Accretion: Continuum emission powered by gas falling onto central black hole, At a rate of one solar mass per year, l ...
... Check for consistency: Schwarzschild radius is the radius where the “escape velocity” equals the speed of light around a black hole of mass M: RS = 2GM/c2 It relates mass and size! Accretion: Continuum emission powered by gas falling onto central black hole, At a rate of one solar mass per year, l ...
Lec2015_22
... via beta-decay - s-process, where s is for slow • In case when the half-life for beta-decay is long compared to the timescale for neutron capture then obtain neutron-rich nuclei - rprocess, where r is for rapid • r-process takes place following core collapse in supernovae and possibly also close to ...
... via beta-decay - s-process, where s is for slow • In case when the half-life for beta-decay is long compared to the timescale for neutron capture then obtain neutron-rich nuclei - rprocess, where r is for rapid • r-process takes place following core collapse in supernovae and possibly also close to ...
Related Handout - Orange County Astronomers
... to capture the fainter or more scattered stars at the edges. Clusters like the Double Cluster in Perseus or M13 in Hercules are astonishingly beautiful when observed through a moderately sized scope. There are two types of star clusters: galactic or open clusters, and globular clusters. 4.2.1. Galac ...
... to capture the fainter or more scattered stars at the edges. Clusters like the Double Cluster in Perseus or M13 in Hercules are astonishingly beautiful when observed through a moderately sized scope. There are two types of star clusters: galactic or open clusters, and globular clusters. 4.2.1. Galac ...
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.