Galaxies Galaxies M81
... – Planets, Brown Dwarfs – WIMP’s • Weakly Interacting Massive Particles ...
... – Planets, Brown Dwarfs – WIMP’s • Weakly Interacting Massive Particles ...
Answers for the HST Scavenger Hunt
... How far away is this galaxy from the Milky Way galaxy? 31 million light years ...
... How far away is this galaxy from the Milky Way galaxy? 31 million light years ...
Galaxies - science9atsouthcarletonhs
... Lenticular (intermediate between an elliptical galaxy and a spiral galaxy) – Lenticular galaxies are disc galaxies (like spiral galaxies) which have used up or lost most of their interstellar matter and therefore have very little ongoing star formation.[2] As a result, they consist mainly of aging s ...
... Lenticular (intermediate between an elliptical galaxy and a spiral galaxy) – Lenticular galaxies are disc galaxies (like spiral galaxies) which have used up or lost most of their interstellar matter and therefore have very little ongoing star formation.[2] As a result, they consist mainly of aging s ...
Exam 3 Study Guide
... disk like structure, are mostly older stars, and contain very little gas. How do spiral galaxies form? A protogalactic cloud forms a disk because of available gas. For this to happen, the cloud must not be so dense that stars quickly form. The disk is formed because of conservation of angular moment ...
... disk like structure, are mostly older stars, and contain very little gas. How do spiral galaxies form? A protogalactic cloud forms a disk because of available gas. For this to happen, the cloud must not be so dense that stars quickly form. The disk is formed because of conservation of angular moment ...
Astronomy I Ex.2
... What is the (approximate) age of the universe in Gyr? 3. Convert the following distances in cm to distances in AU: a) Approximate distance from the earth to the sun: 1.44 × 1013 cm b) Approximate distance from the earth to the next nearest star - Alpha Centauri: 3.97 × 1018 cm c) Approximate distanc ...
... What is the (approximate) age of the universe in Gyr? 3. Convert the following distances in cm to distances in AU: a) Approximate distance from the earth to the sun: 1.44 × 1013 cm b) Approximate distance from the earth to the next nearest star - Alpha Centauri: 3.97 × 1018 cm c) Approximate distanc ...
Document
... The observation that there are few spiral galaxies in areas of high galaxy density. ...
... The observation that there are few spiral galaxies in areas of high galaxy density. ...
Lecture 12
... The light from the Andromeda galaxy left it about 1.5Myr ago, and the light from something in the Virgo Cluster about 65 Myr ago (about when the dinosaurs were killed). We’ll see we think the Universe is ~14Gyr old, so light from an object >14Glyr (5000Mpc) away will not have had enough time to reac ...
... The light from the Andromeda galaxy left it about 1.5Myr ago, and the light from something in the Virgo Cluster about 65 Myr ago (about when the dinosaurs were killed). We’ll see we think the Universe is ~14Gyr old, so light from an object >14Glyr (5000Mpc) away will not have had enough time to reac ...
chapter 26 instructor notes
... Starburst Galaxies. These are a group of strongly interacting galaxies that are bluer in colour than isolated galaxies, presumably because of the presence of recently-created hot young stars. Larson and Tinsley (1972) argued that the tidal interaction with another galaxy has induced star formation, ...
... Starburst Galaxies. These are a group of strongly interacting galaxies that are bluer in colour than isolated galaxies, presumably because of the presence of recently-created hot young stars. Larson and Tinsley (1972) argued that the tidal interaction with another galaxy has induced star formation, ...
Galaxies - Where Science Meets Life
... Spiral Spiral-shaped Central bulge with arms extending outward. Lots of gas and dust. Many established stars. ...
... Spiral Spiral-shaped Central bulge with arms extending outward. Lots of gas and dust. Many established stars. ...
Unit Review Answers - click here
... communications satellites allow us to use cell phones and the Internet. ...
... communications satellites allow us to use cell phones and the Internet. ...
Measuring Distances - Stockton University
... Type Ia Supernovae • A certain type of exploding star called a Type Ia supernova appears to follow a fairly consistent light-curve, peaking at an absolute magnitude of about Mv -19. This makes them 23.8 magnitudes more luminous than the Sun, equivalent to a factor of 1023.8/2.5 = 3.3 x 109 . • Th ...
... Type Ia Supernovae • A certain type of exploding star called a Type Ia supernova appears to follow a fairly consistent light-curve, peaking at an absolute magnitude of about Mv -19. This makes them 23.8 magnitudes more luminous than the Sun, equivalent to a factor of 1023.8/2.5 = 3.3 x 109 . • Th ...
Life Cycle of Stars
... Consists of more than 200 billion stars and is more than 100, 000 ly across The sun lies 30, 000 ly away from the centre of the galaxy Is a barred spiral galaxy with two spiral arms. The central bulge is a huge collection of old stars. It is surrounded by spinning disc of newer stars and clump ...
... Consists of more than 200 billion stars and is more than 100, 000 ly across The sun lies 30, 000 ly away from the centre of the galaxy Is a barred spiral galaxy with two spiral arms. The central bulge is a huge collection of old stars. It is surrounded by spinning disc of newer stars and clump ...
Test 3 Version 3 1. Milky Way halo stars follow: (a) differential
... D reflected before it reaches the surface 35. Which of the following can escape from within a "black hole radius" of a black hole? A photons B anti-particles C gamma rays D none of the above or anything else, for that matter ...
... D reflected before it reaches the surface 35. Which of the following can escape from within a "black hole radius" of a black hole? A photons B anti-particles C gamma rays D none of the above or anything else, for that matter ...
Study Guide Astronomy
... Chapter 4 Section 4 Star Systems and Galaxies (pages 141-147) 20. What is the major difference between elliptical galaxies and spiral galaxies? ...
... Chapter 4 Section 4 Star Systems and Galaxies (pages 141-147) 20. What is the major difference between elliptical galaxies and spiral galaxies? ...
Week 11 Concept Summary
... radio and infrared light can get through it easily. Stars collapse and form from the ISM, build up more heavy elements, and then recycle their enriched gas back to the ISM through stellar winds, pletary nebulae, and supernovae. 3. Spiral Arms: The Milky Way and many other galaxies show spiral arms. ...
... radio and infrared light can get through it easily. Stars collapse and form from the ISM, build up more heavy elements, and then recycle their enriched gas back to the ISM through stellar winds, pletary nebulae, and supernovae. 3. Spiral Arms: The Milky Way and many other galaxies show spiral arms. ...
stars & galaxies
... our home iN The sTars… • The Milky Way has a diameter of about 100,000 light years. • The nucleus is 2000 light years thick. • Our sun is located 30,000 light years from the nucleus. • It takes the sun 200 million years to ...
... our home iN The sTars… • The Milky Way has a diameter of about 100,000 light years. • The nucleus is 2000 light years thick. • Our sun is located 30,000 light years from the nucleus. • It takes the sun 200 million years to ...
Other Galaxies, their Distances, and the Expansion of the Universe
... Galaxies fill the Universe, and are visible at great distances. Each contains hundreds of millions of stars. They can be used to trace and derive properties of the Universe itself, such as whether it is a changing or unchanging structure, the speed of change, etc. ...
... Galaxies fill the Universe, and are visible at great distances. Each contains hundreds of millions of stars. They can be used to trace and derive properties of the Universe itself, such as whether it is a changing or unchanging structure, the speed of change, etc. ...
File
... Types of Galaxies Elliptical Galaxies: spherical or oval shape: contain little dust and gas 60% of all galaxies very old stars and very little nebulae (a cloud of gas and/or dust in space) Irregular Galaxies: no orderly shape and are very rare. 10% of all galaxies ...
... Types of Galaxies Elliptical Galaxies: spherical or oval shape: contain little dust and gas 60% of all galaxies very old stars and very little nebulae (a cloud of gas and/or dust in space) Irregular Galaxies: no orderly shape and are very rare. 10% of all galaxies ...
Post-class version
... This question does not state that the Sun will become a black hole. It is only asking what would happen if, somehow, a black hole were substituted for the Sun. ...
... This question does not state that the Sun will become a black hole. It is only asking what would happen if, somehow, a black hole were substituted for the Sun. ...
5X_Measuring_galaxy_redshifts
... magnetic buttons (with miniature prisms). A robot sets up the field beforehand by drawing out each fibre from its storage and placing the button on a metal plate exactly where the light of a particular galaxy will fall. One field can be set up whilst another is being observed. ...
... magnetic buttons (with miniature prisms). A robot sets up the field beforehand by drawing out each fibre from its storage and placing the button on a metal plate exactly where the light of a particular galaxy will fall. One field can be set up whilst another is being observed. ...
An analogy
... – distant galaxies are younger than those used to define the Hubble Sequence – more peculiar galaxies are observed: could be due to patchy star formation (younger age) or to interactions being more frequent (denser Universe) – resolution is poor compared to local galaxies and usually limited to a fe ...
... – distant galaxies are younger than those used to define the Hubble Sequence – more peculiar galaxies are observed: could be due to patchy star formation (younger age) or to interactions being more frequent (denser Universe) – resolution is poor compared to local galaxies and usually limited to a fe ...
Study Guide - Universe Exam key 2014-15 v2
... 1. Describe the model that was used in the activity titled “Our Expanding Universe.” We used a balloon and put dots on it to represent galaxies. a) How was this model useful? Showed us how galaxies move away from each other as it expands. b) Name 2 limitations of this model. It has boundaries and wi ...
... 1. Describe the model that was used in the activity titled “Our Expanding Universe.” We used a balloon and put dots on it to represent galaxies. a) How was this model useful? Showed us how galaxies move away from each other as it expands. b) Name 2 limitations of this model. It has boundaries and wi ...
Galaxy Zoo
Galaxy Zoo is a crowdsourced astronomy project which invites people to assist in the morphological classification of large numbers of galaxies. (e.g.) It is an example of citizen science as it enlists the help of members of the public to help in scientific research. There have been seven versions up to July 2014, which are outlined in this article. Galaxy Zoo is part of the Zooniverse, a group of citizen science projects.