astronomy

John Carlstrom

John Carlstrom is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand John Carlstrom rather than just read about it. In short: John E. Carlstrom (born 1957) is an American astrophysicist, and Professor, Departments of Astronomy and Astrophysics, and Physics, at the University of Chicago.

Key takeaways

John Carlstrom belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect John Carlstrom to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of John Carlstrom from memory before moving on to harder problems.

Reference excerpt

John E. Carlstrom (born 1957) is an American astrophysicist, and Professor, Departments of Astronomy and Astrophysics, and Physics, at the University of Chicago. He graduated from Vassar College with an A.B. in 1981, and from the University of California, Berkeley with a Ph.D. in 1988. Carlstrom specializes in measurements of the Cosmic Microwave Background, and has led several experiments, including the Degree Angular Scale Interferometer, the Sunyaev-Zel'dovich Array, and the South Pole Telescope. He is also known for manufacturing the Gunn oscillators used at several millimeter and submillimeter observatories, such as the BIMA array, the Caltech Submillimeter Observatory and the James Clerk Maxwell Telescope. These oscillators produced the local oscillator signal for the observatorys' heterodyne receivers.

Awards 1998 MacArthur Fellows Program 2004 Magellanic Gold Medal 2006 Beatrice M. Tinsley Prize 2015 Gruber Prize in Cosmology 2020 Elected a Legacy Fellow of the American Astronomical Society

References

External links John E. Carlstrom" Archived 2016-10-24 at the Wayback Machine, Scientific Commons

Worked examples

Example 1 — a first encounter with John Carlstrom

Start with the simplest possible case. Write down what John Carlstrom claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to John Carlstrom before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about John Carlstrom ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of John Carlstrom

In research: John Carlstrom appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses John Carlstrom in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: John Carlstrom is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1957 births, 20th-century American astronomers, 21st-century American astronomers, so understanding it makes those chapters shorter.
In everyday life: Look for John Carlstrom outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “John Carlstrom” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study John Carlstrom in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what John Carlstrom means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain John Carlstrom out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is John Carlstrom in simple terms?

John E. Carlstrom (born 1957) is an American astrophysicist, and Professor, Departments of Astronomy and Astrophysics, and Physics, at the University of Chicago.

Why does John Carlstrom matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study John Carlstrom?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on John Carlstrom.