Project 3. Colour in Astronomy
... Another reason why you obtain lower temperatures is that the Interstellar space is not a perfect vacuum. The interstellar medium (ISM) comprises cold neutral gas (H I at ≈ 70 K), warm neutral gas (H I at 6,000 K) and hot ionised plasma (H II at 10 6 K) primarily located in the plane of the galaxy in ...
... Another reason why you obtain lower temperatures is that the Interstellar space is not a perfect vacuum. The interstellar medium (ISM) comprises cold neutral gas (H I at ≈ 70 K), warm neutral gas (H I at 6,000 K) and hot ionised plasma (H II at 10 6 K) primarily located in the plane of the galaxy in ...
Complete Lecture Notes (pdf file)
... • Individual stars • Binary systems • Star clusters....these reveal how stars evolve with time • Nuclear physics...energy source, synthesis of heavy elements No direct information about physical conditions in stellar interiors (except from helioseismology and solar neutrinos) No direct evidence for ...
... • Individual stars • Binary systems • Star clusters....these reveal how stars evolve with time • Nuclear physics...energy source, synthesis of heavy elements No direct information about physical conditions in stellar interiors (except from helioseismology and solar neutrinos) No direct evidence for ...
aaswinter07ppt
... In January 2002, the star V838 Monocerotis erupted, generating intense interest, at least partly because of the exquisite pictures taken by the Hubble Space Telescope (see the background of this poster and the color picture below) ACS showing what is interpreted as a “light echo” from the eruption ( ...
... In January 2002, the star V838 Monocerotis erupted, generating intense interest, at least partly because of the exquisite pictures taken by the Hubble Space Telescope (see the background of this poster and the color picture below) ACS showing what is interpreted as a “light echo” from the eruption ( ...
A sound nebula: the origin of the Solar System in the field of a
... contraction in the centre of the pre-solar nebula started thermonuclear fusion of hydrogen into helium. A large amount of energy was emitted and radiation pressure prevented the further contraction of the gas nebula. However, thermonuclear fusion could not start quietly; the process resulted in an e ...
... contraction in the centre of the pre-solar nebula started thermonuclear fusion of hydrogen into helium. A large amount of energy was emitted and radiation pressure prevented the further contraction of the gas nebula. However, thermonuclear fusion could not start quietly; the process resulted in an e ...
File
... spirals, but with the presence of a bar in the central regions. E = elliptical galaxies -- galaxies with smooth light distributions, biaxial profiles. Round to oval in shape. Irr = irregular galaxies -- galaxies that did not have the regular structure of the above groups Cause of Galaxy Types ...
... spirals, but with the presence of a bar in the central regions. E = elliptical galaxies -- galaxies with smooth light distributions, biaxial profiles. Round to oval in shape. Irr = irregular galaxies -- galaxies that did not have the regular structure of the above groups Cause of Galaxy Types ...
Apparent Motion of the Stars Worksheet
... State and draw the slant path of rising/setting stars along the eastern/western horizon as seen from any location. [Rule: The Celestial Equator (0° dec) intersects the horizon due East and West for all observers. All stars follow their respective lines of declination and, near the celestial equato ...
... State and draw the slant path of rising/setting stars along the eastern/western horizon as seen from any location. [Rule: The Celestial Equator (0° dec) intersects the horizon due East and West for all observers. All stars follow their respective lines of declination and, near the celestial equato ...
Circumstellar Disks: IRAS to ALMA (by way of HST) Dr. Karl Stapelfeldt
... solar-type stars at 100 & 160 m • Excess detected in up to 20% of the targets, with examples seen down to a few times Kuiper Belt dust level • Many disks resolved in Herschel’s 6” beam ...
... solar-type stars at 100 & 160 m • Excess detected in up to 20% of the targets, with examples seen down to a few times Kuiper Belt dust level • Many disks resolved in Herschel’s 6” beam ...
Lab PDF - NMSU Astronomy
... plenty of hydrogen fuel to burn at its core – as the Main Sequence phase. It can be unstable and erratic soon after its formation from a collapsing cloud of gas and dust and later in life when it begins to run out of fuel and experience “energy crises,” but not during the Main Sequence phase. How lo ...
... plenty of hydrogen fuel to burn at its core – as the Main Sequence phase. It can be unstable and erratic soon after its formation from a collapsing cloud of gas and dust and later in life when it begins to run out of fuel and experience “energy crises,” but not during the Main Sequence phase. How lo ...
Constellation ARA
... planet 12152 Aratus are Hades, and Poseidon. When the named in his honour youngest child, Zeus, was born, his mother Rhea hid him in Crete and gave Cronus a stone to swallow, telling him the stone was Zeus. When Zeus grew up, he made Cronus vomit his brothers and sisters. Once freed, they banded tog ...
... planet 12152 Aratus are Hades, and Poseidon. When the named in his honour youngest child, Zeus, was born, his mother Rhea hid him in Crete and gave Cronus a stone to swallow, telling him the stone was Zeus. When Zeus grew up, he made Cronus vomit his brothers and sisters. Once freed, they banded tog ...
Put your title in here…
... Outline Overview of Black Holes The Stellar Disruption Event The Flare The Stellar Wind Core Remnants ...
... Outline Overview of Black Holes The Stellar Disruption Event The Flare The Stellar Wind Core Remnants ...
Chapter 14 – Chemical Analysis
... COG is independent of gravity • For ionized lines of ionized species (e.g Fe II in the Sun), the curves shift to the right with increasing gravity, roughly as g1/3 ...
... COG is independent of gravity • For ionized lines of ionized species (e.g Fe II in the Sun), the curves shift to the right with increasing gravity, roughly as g1/3 ...
Chapter 19 Stars Galaxies and the Universe
... things, stars go through a life cycle from birth to death. The actual life cycle of a star depends on its size. An average star, such as the sun, goes through four stages during its life. A star enters the first stage of its life cycle as a ball of gas and dust called a protostar. Gravity pulls the ...
... things, stars go through a life cycle from birth to death. The actual life cycle of a star depends on its size. An average star, such as the sun, goes through four stages during its life. A star enters the first stage of its life cycle as a ball of gas and dust called a protostar. Gravity pulls the ...
norfolk skies - Norfolk Astronomical Society
... “emitting” their own light generally look considerably brighter in the telescope when using specific line, or nebula, filters. NGC 2327 does not brighten; therefore I suspect it might be a reflection, rather than emission nebula. When you find it look at the faint star just a bit eastward, in the sa ...
... “emitting” their own light generally look considerably brighter in the telescope when using specific line, or nebula, filters. NGC 2327 does not brighten; therefore I suspect it might be a reflection, rather than emission nebula. When you find it look at the faint star just a bit eastward, in the sa ...
Summer 2014 Mercury - Astronomical Society of the Pacific
... mother slathered herself from head to toe in coconut-scented baby oil and let the Sun’s ultraviolet rays “roast” her to a golden brown. Night at the fishing resort was my favorite time, when darkness rose in the east and the stars emerged from the background. I started stargazing when I was six year ...
... mother slathered herself from head to toe in coconut-scented baby oil and let the Sun’s ultraviolet rays “roast” her to a golden brown. Night at the fishing resort was my favorite time, when darkness rose in the east and the stars emerged from the background. I started stargazing when I was six year ...
Post Main Sequence Evolution Since a star`s luminosity on the main
... the Schönberg-Chandrasekhar limit. Stars with larger (by mass fraction) cores will reach this point faster than stars with small cores.) • Light elements such as lithium, boron, and beryllium fuse at temperatures much lower than those of the central core. As a result, by the time a star has moved o ...
... the Schönberg-Chandrasekhar limit. Stars with larger (by mass fraction) cores will reach this point faster than stars with small cores.) • Light elements such as lithium, boron, and beryllium fuse at temperatures much lower than those of the central core. As a result, by the time a star has moved o ...
File
... Consider a relatively nearby, single star, that is, a star that is not a member of a binary system and has no known orbiting planets. Listed below are a few properties of this star. Classify each property as either something that we can observe or measure directly (with the aid of a telescope and in ...
... Consider a relatively nearby, single star, that is, a star that is not a member of a binary system and has no known orbiting planets. Listed below are a few properties of this star. Classify each property as either something that we can observe or measure directly (with the aid of a telescope and in ...
Chapter 7: The Galaxy, structure and content File
... rotation (i.e. A = 0 when the angular velocity Ω(R) = hvφ i/R = constant). Another useful property is that the gradient of the rotational velocity is ∂hvφ i/∂R = −(A + B) at R = R0 , which means that A + B = 0 if the rotation curve is flat (because hvφ i is nearly the same as vcirc , and therefore w ...
... rotation (i.e. A = 0 when the angular velocity Ω(R) = hvφ i/R = constant). Another useful property is that the gradient of the rotational velocity is ∂hvφ i/∂R = −(A + B) at R = R0 , which means that A + B = 0 if the rotation curve is flat (because hvφ i is nearly the same as vcirc , and therefore w ...
Standards
... their statement to the class. If they did not make a correct match – try again later!! This will lead to discussion about each statement. The students will need to write down the terms and concepts to have for reference and study. The Stars - Types of stars Ask students how they think astronomers gr ...
... their statement to the class. If they did not make a correct match – try again later!! This will lead to discussion about each statement. The students will need to write down the terms and concepts to have for reference and study. The Stars - Types of stars Ask students how they think astronomers gr ...
Astrophysics Lab “A”
... – To date, successful observations of massive stars have been carried out up to distances of ≈ 6.7 Mpc (in NGC 3621, spiral galaxy) • The energy flux detected by the telescopes is emitted in the outer layers of the stars, the so-called atmospheres. • To calculate (“model”) this radiation, a detailed ...
... – To date, successful observations of massive stars have been carried out up to distances of ≈ 6.7 Mpc (in NGC 3621, spiral galaxy) • The energy flux detected by the telescopes is emitted in the outer layers of the stars, the so-called atmospheres. • To calculate (“model”) this radiation, a detailed ...