Astronomy
1st Edition
ISBN: 9781938168284
Author: Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher: OpenStax
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 6, Problem 10E
Why is it difficult to observe at infrared wavelengths? What do astronomers do to address this difficulty?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
What are the different types of remote spectroscopy? List them all with a explanation
Why must most infrared telescopes operate at very high altitudes or in space?
A remote-sensing payload operates in the
infrared part of the spectrum (lambda = 1
micrometer). If it has an aperture diameter
of 1 m, what would its resolution be (in
meters) while operating in a
geosynchronous orbit (35,786 km)?
What formula would I use to find this?
Chapter 6 Solutions
Astronomy
Ch. 6 - What are the three basic components of a modern...Ch. 6 - Name the two spectral windows through which...Ch. 6 - List the largest-aperture single telescope...Ch. 6 - When astronomers discuss the apertures of their...Ch. 6 - The Hooker telescope at Palomar Observatory has a...Ch. 6 - What is meant by “reflecting” and “refracting”...Ch. 6 - Why are the largest visible-light telescopes in...Ch. 6 - Compare the eye, photographic film, and CCDs as...Ch. 6 - What is a charge-coupled device (CCD), and how is...Ch. 6 - Why is it difficult to observe at infrared...
Ch. 6 - Radio and radar observations are often made with...Ch. 6 - Look back at Figure 6.18 of Cygnus A and read its...Ch. 6 - Why do astronomers place telescopes in Earth’s...Ch. 6 - What was the problem with the Hubble Space...Ch. 6 - Describe the techniques radio astronomers use to...Ch. 6 - What kind of visible-light and infrared telescopes...Ch. 6 - Describe one visible-light or infrared telescope...Ch. 6 - What happens to the image produced by a lens if...Ch. 6 - What would be the properties of an ideal...Ch. 6 - Many decades ago, the astronomers on the staff of...Ch. 6 - The largest observatory complex in the world is on...Ch. 6 - Suppose you are looking for sites for a...Ch. 6 - Radio astronomy involves wavelengths much longer...Ch. 6 - The dean of a university located near the ocean...Ch. 6 - What is the area, in square meters, of a 10-m...Ch. 6 - Approximately 9000 stars are visible to the naked...Ch. 6 - Theoretically (that is, if seeing were not an...Ch. 6 - In broad daylight, the size of your pupil is...Ch. 6 - How much more light can be gathered by a telescope...Ch. 6 - How much more light can the Keck telescope (with...Ch. 6 - People are often bothered when they discover that...Ch. 6 - Telescopes can now be operated remotely from a...Ch. 6 - The HST cost about $1.7 billion for construction...Ch. 6 - How much more light can the James Webb Space...Ch. 6 - The Palomar telescope’s 5-m mirror weighs 14.5...
Additional Science Textbook Solutions
Find more solutions based on key concepts
An ideal diatomic gas, in a cylinder with a movable piston, undergoes the rectangular cyclic process shown in F...
An Introduction to Thermal Physics
15. In the Olympic shotput event, an athlete throws the shot with an initial speed of 12.0 m/s at a 40.0° angle...
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Express the unit vectors in terms of (that is, derive Eq. 1.64). Check your answers several ways Also work o...
Introduction to Electrodynamics
This problem compares the energy output and heat transfer to the environment by two different types of nuclear ...
College Physics
A dipole of moment p = 2.9 nC m consists of two charges separated by far less than 10 cm. Find the potential 1...
Essential University Physics: Volume 2 (3rd Edition)
Fill in each blank with the most reasonable metric unit (km, m, cm, or mm).
27. The width of your hand is about...
Applied Physics (11th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Suppose you are looking for sites for a visible-light observatory, an infrared observatory, and a radio observatory. What are the main criteria of excellence for each? What sites are actually considered the best today?arrow_forwardThe HST cost about $1.7 billion for construction and $300 million for its shuttle launch, and it costs $250 million per year to operate. If the telescope lasts for 20 years, what is the total cost per year? Per day? If the telescope can be used just 30% of the time for actual observations, what is the cost per hour and per minute for the astronomer’s observing time on this instrument? What is the cost per person in the United States? Was your investment in the Hubble Space telescope worth it?arrow_forwardWhat kind of visible-light and infrared telescopes on the ground are astronomers planning for the future? Why are they building them on the ground and not in space?arrow_forward
- Many decades ago, the astronomers on the staff of Mount Wilson and Palomar Observatories each received about 60 nights per year for their observing programs. Today, an astronomer feels fortunate to get 10 nights per year on a large telescope. Can you suggest some reasons for this change?arrow_forwardWhy do astronomers place telescopes in Earth’s orbit? What are the advantages for the different regions of the spectrum?arrow_forwardWhat should the swath width of a sensor be with a sun synchronous orbit with an altitude of 700km if you only want to cover 1/3 of the equator each day? How would you calculate this step by step? The lens diameter of the sensor is 20cm and the focal length is 1.5 m with a ground resolution of 100m.arrow_forward
- required to conduct observations 11. What special conditions are: in the infrared?arrow_forwardA powerful telescope can observe an object down to about the 30th magnitude in the B-band. To what distance can this kind of telescope observe a star like the Sun? What kind of energy flux is observed at this telescope in terms of the solar constant?arrow_forwardWhen would an infrared telescope most likely be used?arrow_forward
- You have a radio telescope that you are designing to observe the fine details of the ring of hydrogen around Jupiter (yes, Jupiter does have rings, but not as pretty as Saturn.) Jupiter is about 5.93E8 km from Earth. If you are trying to observe gas structures the size of a small town (about 1.0 km across) and the wavelength of hydrogen alpha is 656.28 nm, then what is the minimum diameter that you would need to have for your telescope to resolve the needed details to Rayleigh criterion?arrow_forwardWhat diameter telescope is needed to resolve the separation between an Earth-like planet and its star at 550 nm if the linear separation between them is 1 AU and the star system is 4 pc from Earth? (Give your answer in m.) marrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
AstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStax
Stars and Galaxies (MindTap Course List)PhysicsISBN:9781337399944Author:Michael A. SeedsPublisher:Cengage Learning
Foundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
Horizons: Exploring the Universe (MindTap Course ...PhysicsISBN:9781305960961Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
Stars and Galaxies (MindTap Course List)
Physics
ISBN:9781337399944
Author:Michael A. Seeds
Publisher:Cengage Learning
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Horizons: Exploring the Universe (MindTap Course ...
Physics
ISBN:9781305960961
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning