Galaxy alignment within dark matter halos
... Significant alignment found for all the galaxies. The strength of alignment also depend on optical properties (color) of central galaxies and satellite galaxies. ...
... Significant alignment found for all the galaxies. The strength of alignment also depend on optical properties (color) of central galaxies and satellite galaxies. ...
Low Mass
... Formation of Planetary Nebula • Double-shell burning causes strong stellar winds, star expels all of its outer layers • Expelled material, rich in heavy elements such as carbon and silicon, forms planetary nebula. • ~60% of mass is lost in planetary nebula • The process of expelling material and for ...
... Formation of Planetary Nebula • Double-shell burning causes strong stellar winds, star expels all of its outer layers • Expelled material, rich in heavy elements such as carbon and silicon, forms planetary nebula. • ~60% of mass is lost in planetary nebula • The process of expelling material and for ...
CAPSTONE-poster
... Our team decided to explore planetary nebulae because we wanted to know how were they formed, why they had so many colors, why they were called planetary nebulae, the significance of their names, their composition, how many possibly existed in the Milky Way galaxy, their approximate age, their first ...
... Our team decided to explore planetary nebulae because we wanted to know how were they formed, why they had so many colors, why they were called planetary nebulae, the significance of their names, their composition, how many possibly existed in the Milky Way galaxy, their approximate age, their first ...
White Dwarfs
... b. Their gravity is too weak to stop them from expanding beyond the giant phase. c. They live so long that none has ever left the main sequence. d. The rate of hydrogen-shell fusion is too slow to cause the star to expand. e. They are fully connective, and never develop a hydrogen ...
... b. Their gravity is too weak to stop them from expanding beyond the giant phase. c. They live so long that none has ever left the main sequence. d. The rate of hydrogen-shell fusion is too slow to cause the star to expand. e. They are fully connective, and never develop a hydrogen ...
Ch. 20
... It can be seen from this H–R diagram that stars more massive than the Sun follow very different paths when leaving the main sequence: ...
... It can be seen from this H–R diagram that stars more massive than the Sun follow very different paths when leaving the main sequence: ...
Analysis of Two Pulsating X-ray Sources
... A “hot spot” on a white dwarf can occur if a white dwarf with a magnetic field accretes matter from the companion star, and the accretion Illustration of an Accretion Powered Pulsar disk is disrupted at small radii by the white dwarf’s magnetosphere. Material would then travel along the magnetic fie ...
... A “hot spot” on a white dwarf can occur if a white dwarf with a magnetic field accretes matter from the companion star, and the accretion Illustration of an Accretion Powered Pulsar disk is disrupted at small radii by the white dwarf’s magnetosphere. Material would then travel along the magnetic fie ...
Assignment 7 - Department of Physics and Astronomy
... ____ 19. Stars that do not have what it takes to succeed as a star (i.e. do not have enough mass to fuse hydrogen into helium at their centers) are called: a. extras b. red giants c. spectroscopic stars d. brown dwarfs e. main sequence stars ____ 20. Which of the following has the smallest mass? a ...
... ____ 19. Stars that do not have what it takes to succeed as a star (i.e. do not have enough mass to fuse hydrogen into helium at their centers) are called: a. extras b. red giants c. spectroscopic stars d. brown dwarfs e. main sequence stars ____ 20. Which of the following has the smallest mass? a ...
Stars and Constellations
... The imaginary line made by Orion's belt toward the northwest passes just under the horn of Taurus, the bull. The horns of Taurus form a V-shape in the sky and contain the star, Aldebaran. Pleiades, the seven sisters, are located on the shoulder of Taurus. Usually only six stars can readily be seen; ...
... The imaginary line made by Orion's belt toward the northwest passes just under the horn of Taurus, the bull. The horns of Taurus form a V-shape in the sky and contain the star, Aldebaran. Pleiades, the seven sisters, are located on the shoulder of Taurus. Usually only six stars can readily be seen; ...
ATA2010
... Assignments: one problem sheet with 5 questions: please hand in at lecture on Fri Sep 18. I use these problems as part of the teaching process, as well as for assessment, so please do them. They require some time and effort. I encourage you to discuss the problems with others, but the work you submi ...
... Assignments: one problem sheet with 5 questions: please hand in at lecture on Fri Sep 18. I use these problems as part of the teaching process, as well as for assessment, so please do them. They require some time and effort. I encourage you to discuss the problems with others, but the work you submi ...
Scorpius: The Scorpion Σκορπιος Amber Perrine Physics 1040 MWF
... hundred stars that form a shape similar to a butterfly with open wings that is visible to the naked eye. The cluster is between the bow of Sagittarius and the tail of Scorpius. It has an apparent visual magnitude of 4.2 and its angular diameter is 25 arc-minutes. Messier 6 lies approximately 1,600 l ...
... hundred stars that form a shape similar to a butterfly with open wings that is visible to the naked eye. The cluster is between the bow of Sagittarius and the tail of Scorpius. It has an apparent visual magnitude of 4.2 and its angular diameter is 25 arc-minutes. Messier 6 lies approximately 1,600 l ...
Birth of Stars
... Vast clouds of gas (and dust) dot the Milky Way Galaxy A giant molecular cloud is an enormous, dense cloud of gas so cold (10 to 20 K) that atoms are bound into molecules ...
... Vast clouds of gas (and dust) dot the Milky Way Galaxy A giant molecular cloud is an enormous, dense cloud of gas so cold (10 to 20 K) that atoms are bound into molecules ...
- University of Manitoba
... boundary to a pixel value, 2300 , within error of the values found earlier for the outer edge of the visible galaxy. Orange : the boundary in which the bright white region which makes up the body of the galaxy Red: the apparent multicore nature of the galaxy in the visible spectrum Blue: the brighte ...
... boundary to a pixel value, 2300 , within error of the values found earlier for the outer edge of the visible galaxy. Orange : the boundary in which the bright white region which makes up the body of the galaxy Red: the apparent multicore nature of the galaxy in the visible spectrum Blue: the brighte ...
AST 301 Introduction to Astronomy - University of Texas Astronomy
... When a star is in thermal equilibrium, the rate of energy generation by fusion equals the rate of energy loss by radiation from the surface of the star. The rate of fusion depends strongly on temperature, because the protons must be moving fast to get close enough together so they can be attracted b ...
... When a star is in thermal equilibrium, the rate of energy generation by fusion equals the rate of energy loss by radiation from the surface of the star. The rate of fusion depends strongly on temperature, because the protons must be moving fast to get close enough together so they can be attracted b ...
Evolution of our Sun
... About how long does our star live as a main sequence star? Explain why a massive star only lives a short time? What elements are created in a sun-like star? What elements are created in a massive star? Evolution of the Sun – Part 2 Name and briefly describe the stages that our sun will go through as ...
... About how long does our star live as a main sequence star? Explain why a massive star only lives a short time? What elements are created in a sun-like star? What elements are created in a massive star? Evolution of the Sun – Part 2 Name and briefly describe the stages that our sun will go through as ...
Fulltext PDF
... Star Formation Phases The process of formation of a star can be divided into three phases. The first, known as 'star formation', involves massive interstellar clouds or cloud fragments, which have cooled to the point where they are detectable in molecular lines (such as CO) but which are unable to c ...
... Star Formation Phases The process of formation of a star can be divided into three phases. The first, known as 'star formation', involves massive interstellar clouds or cloud fragments, which have cooled to the point where they are detectable in molecular lines (such as CO) but which are unable to c ...
Photographs of a Star Cluster Spectra of a Star Cluster
... • “Along the line of sight” means the Doppler Effect happens only if the object which is emitting light is moving towards you or away from you. – An object moving “side to side” or perpendicular, relative to your line of sight, will not experience a Doppler Effect. ...
... • “Along the line of sight” means the Doppler Effect happens only if the object which is emitting light is moving towards you or away from you. – An object moving “side to side” or perpendicular, relative to your line of sight, will not experience a Doppler Effect. ...
Lesson Plan - ScienceA2Z.com
... Some well-known constellations contain striking and familiar patterns of bright stars. Examples are Orion (containing a figure of a hunter), Leo (containing bright stars outlining the form of a lion), Scorpius (a scorpion), and Crux (a cross). The International Astronomical Union (IAU) divides the s ...
... Some well-known constellations contain striking and familiar patterns of bright stars. Examples are Orion (containing a figure of a hunter), Leo (containing bright stars outlining the form of a lion), Scorpius (a scorpion), and Crux (a cross). The International Astronomical Union (IAU) divides the s ...
The Characteristics of Stars
... Stars are scattered across the Universe at different distances from Earth. The varying distances make it difficult to visually compare stars to determine which are emitting more light and which are emitting less. Although apparent magnitude values help us classify stars according to their observed b ...
... Stars are scattered across the Universe at different distances from Earth. The varying distances make it difficult to visually compare stars to determine which are emitting more light and which are emitting less. Although apparent magnitude values help us classify stars according to their observed b ...
General Introduction 1. Luminosity, Flux and Magnitude The
... The evolution of the Sun is shown schematically in Fig. 7.3. The red giant phase occurs after the interior of the Sun is exhausted of hydrogen and helium burning initiates. The Sun is not massive enough to burn elements beyond He, so after shedding roughly half its mass in a violent wind leading to ...
... The evolution of the Sun is shown schematically in Fig. 7.3. The red giant phase occurs after the interior of the Sun is exhausted of hydrogen and helium burning initiates. The Sun is not massive enough to burn elements beyond He, so after shedding roughly half its mass in a violent wind leading to ...
DO NOW - PBworks
... **Teacher will model how to do this** 2. For each star, put an “X” next to the element name for each element it has on RM 21. ...
... **Teacher will model how to do this** 2. For each star, put an “X” next to the element name for each element it has on RM 21. ...
section 17 powerpoint
... to be the greatest ancient astronomical observer. He grouped stars into six magnitude bins (note the magic number 6) with 1st magnitude stars being the brightest and 6th magnitude stars being the faintest detectable. The human eye perceives brightness almost in logarithmic fashion, so the best match ...
... to be the greatest ancient astronomical observer. He grouped stars into six magnitude bins (note the magic number 6) with 1st magnitude stars being the brightest and 6th magnitude stars being the faintest detectable. The human eye perceives brightness almost in logarithmic fashion, so the best match ...
Lecture 33: The Lives of Stars Astronomy 141
... The more massive a star is, the shorter its lifetime. Low-Mass stars are long-lived, spend some time as Red Giants, then leave behind a White Dwarf. Very high-mass stars have very short lives, spend a short time as red supergiants, then explode as a supernova. ...
... The more massive a star is, the shorter its lifetime. Low-Mass stars are long-lived, spend some time as Red Giants, then leave behind a White Dwarf. Very high-mass stars have very short lives, spend a short time as red supergiants, then explode as a supernova. ...
Dark Matter -24-------------------------------~-----------R-E-S-O-N-A-N-C
... There have been three reactions to the discovery of dark matter: (i) It doesn't exist; the law of gravitation must be modified so that the stars are all there is to a galaxy. (ii) Dark matter exists, but consists entirely of ord~nary matter - Jupiter-like objects called broum dwarfs that are not mas ...
... There have been three reactions to the discovery of dark matter: (i) It doesn't exist; the law of gravitation must be modified so that the stars are all there is to a galaxy. (ii) Dark matter exists, but consists entirely of ord~nary matter - Jupiter-like objects called broum dwarfs that are not mas ...
Study Guide for 1ST Astronomy Exam
... Properly label the axes of an HR diagram and identify the regions of o The main sequence o Red Giants ...
... Properly label the axes of an HR diagram and identify the regions of o The main sequence o Red Giants ...
Serpens
Serpens (""the Serpent"", Greek Ὄφις) is a constellation of the northern hemisphere. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations defined by the International Astronomical Union. It is unique among the modern constellations in being split into two non-contiguous parts, Serpens Caput (Serpent's Head) to the west and Serpens Cauda (Serpent's Tail) to the east. Between these two halves lies the constellation of Ophiuchus, the ""Serpent-Bearer"". In figurative representations, the body of the serpent is represented as passing behind Ophiuchus between Mu Serpentis in Serpens Caput and Nu Serpentis in Serpens Cauda.The brightest star in Serpens is the red giant star Alpha Serpentis, or Unukalhai, in Serpens Caput, with an apparent magnitude of 2.63. Also located in Serpens Caput are the naked-eye globular cluster Messier 5 and the naked-eye variables R Serpentis and Tau4 Serpentis. Notable extragalactic objects include Seyfert's Sextet, one of the densest galaxy clusters known; Arp 220, the prototypical ultraluminous infrared galaxy; and Hoag's Object, the most famous of the very rare class of galaxies known as ring galaxies.Part of the Milky Way's galactic plane passes through Serpens Cauda, which is therefore rich in galactic deep-sky objects, such as the Eagle Nebula (IC 4703) and its associated star cluster Messier 16. The nebula measures 70 light-years by 50 light-years and contains the Pillars of Creation, three dust clouds that became famous for the image taken by the Hubble Space Telescope. Other striking objects include the Red Square Nebula, one of the few objects in astronomy to take on a square shape; and Westerhout 40, a massive nearby star-forming region consisting of a molecular cloud and an H II region.