ESA-ESO Working Group on the Galaxy
... •Need to follow stream across large area on the sky -> Wide-field, accurate RV, faint magnitudes, multiplex ~ 100 ...
... •Need to follow stream across large area on the sky -> Wide-field, accurate RV, faint magnitudes, multiplex ~ 100 ...
Lecture 11 - University of Washington
... ∼ 1 Mpc) is only about 10-100 times larger than the size of a typical galaxy. For stars, typical distance (say 1 pc) is about 108 times larger than typical stellar size! E.g. Andromeda is coming overhere at 100 km/s – expect fireworks 6 Gyr from now! Fraction of the Milky Way’s disk that is covered ...
... ∼ 1 Mpc) is only about 10-100 times larger than the size of a typical galaxy. For stars, typical distance (say 1 pc) is about 108 times larger than typical stellar size! E.g. Andromeda is coming overhere at 100 km/s – expect fireworks 6 Gyr from now! Fraction of the Milky Way’s disk that is covered ...
Branches of Earth Science
... Galaxy is a huge collection of stars bound by ______________ o Contain various star ______________ ______________ of galaxies in the universe 3 types of galaxies o Spiral o Elliptical o Irregular ...
... Galaxy is a huge collection of stars bound by ______________ o Contain various star ______________ ______________ of galaxies in the universe 3 types of galaxies o Spiral o Elliptical o Irregular ...
Data Tables - AlmaMiddleSchoolScience
... that a star is a like giant factory that is driven by gravity to fuse light elements like hydrogen under heat and pressure into heavier atoms like helium and the other heavier elements of the periodic table. At the cores of stars, hydrogen atoms are squished together under extreme heat and pressure ...
... that a star is a like giant factory that is driven by gravity to fuse light elements like hydrogen under heat and pressure into heavier atoms like helium and the other heavier elements of the periodic table. At the cores of stars, hydrogen atoms are squished together under extreme heat and pressure ...
Characteristics of Stars
... This is 9.5 trillion km in 1 year Proxima Centauri is 4.2 ly away or 39,900,000,000,000 km or 24.8 trillion miles The circumference of the Earth is ~25,000 miles ...
... This is 9.5 trillion km in 1 year Proxima Centauri is 4.2 ly away or 39,900,000,000,000 km or 24.8 trillion miles The circumference of the Earth is ~25,000 miles ...
Lecture 9a: More on Star formation and evolution 10/22
... Gravity causes the material (gas and dust) in a cloud to be attracted to each other compresses into smaller volume increases temperature and density If the temperature at the center becomes large enough (5 million degrees) then H to He fusion can occur: Star is born Many stars formed from same cloud ...
... Gravity causes the material (gas and dust) in a cloud to be attracted to each other compresses into smaller volume increases temperature and density If the temperature at the center becomes large enough (5 million degrees) then H to He fusion can occur: Star is born Many stars formed from same cloud ...
14-black-holes
... • If black hole is part of a binary system with giant, it accretes matter from the giant. – as the matter accelerates, it radiates x-rays – accretion disk – it could be a neutron star, so we must measure mass; how do we do that? ...
... • If black hole is part of a binary system with giant, it accretes matter from the giant. – as the matter accelerates, it radiates x-rays – accretion disk – it could be a neutron star, so we must measure mass; how do we do that? ...
MT 2 Answers Version C
... 11. Which sequence correctly lists the spectral classes of stars in order of decreasing temperature (from hottest to coolest)? (a) ...
... 11. Which sequence correctly lists the spectral classes of stars in order of decreasing temperature (from hottest to coolest)? (a) ...
MT 2 Answers Version D
... 26. Which of the following methods is NOT used to transport energy from the core to the surface of the Sun? (a) ...
... 26. Which of the following methods is NOT used to transport energy from the core to the surface of the Sun? (a) ...
1 - Alice Pevyhouse
... 4.Sound waves do not travel in a vacuum. How, then, do radio waves travel through interstellar space. 5. A continuous spectrum is caused by a solid or highly dense gas. ...
... 4.Sound waves do not travel in a vacuum. How, then, do radio waves travel through interstellar space. 5. A continuous spectrum is caused by a solid or highly dense gas. ...
Looking for the siblings of the Sun
... cannot be very dense. -Presence of radioactive-isotopes in primitive meteorites, the Sun was polluted by a SN of star about 15-25 solar masses within a distance of 0.02-1.6 pc (Looney et al. 2006). - Star cluster where the Sun was born: M ~ 500-3000 ...
... cannot be very dense. -Presence of radioactive-isotopes in primitive meteorites, the Sun was polluted by a SN of star about 15-25 solar masses within a distance of 0.02-1.6 pc (Looney et al. 2006). - Star cluster where the Sun was born: M ~ 500-3000 ...
HW 5 Solutions What are “black smokers?” Where in our solar
... Black smokers are volcanic vents at the bottom of earth’s oceans. It was recently discovered that some of the oldest life forms on earth live in these harsh environments. This was a revolution in our understanding of life, since these organisms gain their energy not from the sun but from the interio ...
... Black smokers are volcanic vents at the bottom of earth’s oceans. It was recently discovered that some of the oldest life forms on earth live in these harsh environments. This was a revolution in our understanding of life, since these organisms gain their energy not from the sun but from the interio ...
Unit 1
... dwarfs • Higher mass stars move rapidly off the main sequence and into the giant stages, eventually exploding in a supernova ...
... dwarfs • Higher mass stars move rapidly off the main sequence and into the giant stages, eventually exploding in a supernova ...
type II supernova
... nearby satellite galaxy of the Milky Way called the Large Magellanic Cloud, so named because it was not known to Europeans until Magellan voyaged south of the Equator. Because the LMC, as it's called, is over 100,000 light years away, the explosion actually occurred over 100,000 years ago. (Remember ...
... nearby satellite galaxy of the Milky Way called the Large Magellanic Cloud, so named because it was not known to Europeans until Magellan voyaged south of the Equator. Because the LMC, as it's called, is over 100,000 light years away, the explosion actually occurred over 100,000 years ago. (Remember ...
1. a) Astronomers use the parallax method to measure
... They were made from energy (or gamma rays) very soon after the big bang (in the first second). 400,000 years later they got together to make hydrogen atoms. b) From what were the carbon atoms in your body made, and where were they made? They were not made in the big bang. They were made much later i ...
... They were made from energy (or gamma rays) very soon after the big bang (in the first second). 400,000 years later they got together to make hydrogen atoms. b) From what were the carbon atoms in your body made, and where were they made? They were not made in the big bang. They were made much later i ...
kaekae14 dae dae15 lifecycleofastar
... After a few million years the low mass star begins to fuse helium into hydrogen. When this happens the collapse is ended because the fusion raises the pressure inside the star. During this period the star is commonly referred to as a Protostar. When the star burns about 90% of the hydrogen in its co ...
... After a few million years the low mass star begins to fuse helium into hydrogen. When this happens the collapse is ended because the fusion raises the pressure inside the star. During this period the star is commonly referred to as a Protostar. When the star burns about 90% of the hydrogen in its co ...
The Fate of the X-ray Emitting Gas in the Early
... GMAs 11 and 13 have velocities near the systemic velocity of NGC 5044 far from the AGN and increasing blueshifted velocities near the AGN. This suggests that these GMAs are falling into the AGN from the far side of the galaxy. The velocity gradient of GMA 18 is perpendicular to that expected f ...
... GMAs 11 and 13 have velocities near the systemic velocity of NGC 5044 far from the AGN and increasing blueshifted velocities near the AGN. This suggests that these GMAs are falling into the AGN from the far side of the galaxy. The velocity gradient of GMA 18 is perpendicular to that expected f ...
Montage of Jupiter and the Galilean satellites
... Indian astronomers. The color indicates what is happening to the electrons in different parts of the Crab Nebula. Red indicates the electrons are recombining with protons to form neutral hydrogen, while blue indicates the electrons are whirling around the magnetic field of the inner nebula. In the n ...
... Indian astronomers. The color indicates what is happening to the electrons in different parts of the Crab Nebula. Red indicates the electrons are recombining with protons to form neutral hydrogen, while blue indicates the electrons are whirling around the magnetic field of the inner nebula. In the n ...
Teacher Guide Lives of Stars
... Read the following to students: “Our galaxy, by conservative estimates, contains 100 billion stars. The small number of stars we can see at night are the nearby stars in our tiny neighborhood of our galaxy. Stars are not eternal, but live long lives compared to our lifetime. Over time they change. J ...
... Read the following to students: “Our galaxy, by conservative estimates, contains 100 billion stars. The small number of stars we can see at night are the nearby stars in our tiny neighborhood of our galaxy. Stars are not eternal, but live long lives compared to our lifetime. Over time they change. J ...
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.