astronomy

Peter Gierasch

Peter Gierasch 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 Peter Gierasch rather than just read about it. In short: Peter Jay Gierasch (19 December 1941 – 20 January 2023) was an American astronomer and astrophysicist. Life In 1962, Peter Jay Gierasch received his bachelor's degree in physics from Harvard University.

Key takeaways

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

Reference excerpt

Peter Jay Gierasch (19 December 1941 – 20 January 2023) was an American astronomer and astrophysicist.

Life In 1962, Peter Jay Gierasch received his bachelor's degree in physics from Harvard University. He continued his studies at his alma mater and immediately commenced working towards a Ph.D. in applied mathematics. Through a mutual friend, Gierasch was introduced to his wife of 59 years, Maida Wiesenthal. They dated for six months before deciding to marry in June 1964. In 1968, within the scope of a year, Gierasch finished his Ph.D. and promptly began his outstanding contribution to planetary sciences with the publishing of his first paper, "Martian thermal and dynamical structure (1968)". The paper focused on the astrobiology of Mars and the planet's atmospheric wind conditions and was an enormous success. The work was the first to ever apply a systematic approach to the analysis of the relationship between the Martian surface and the planetary atmospheric conditions, highlighting the contrast shown to Earth. Gierasch published again in 1971, producing a comprehensive paper on the wind conditions of Mars with the astronomers Joseph Veverka and Carl Sagan. Three decades later, the theories presented by the paper were proved accurate by footage from exploration of the Martian atmosphere. Gierasch joined the Cornell faculty as a professor of astronomy in 1972 and began for NASA as a scientist on the Voyager spectrometer team in 1973.

Achievements Alfred P. Sloan Foundation Research Fellow from 1975 to 1979. Awarded the honor of an asteroid named after him (5153 Gierasch) and a seminar to honor his 60th birthday. Recipient of the 2014 Gerard P. Kuiper Prize Co-founder and leader of Cornell's Center for Radiophysics and Space Research (for ten years) With the help of his guidance and gentle leadership, the center became home to a NASA Regional Planetary Imaging Facility housing instrumentation such as parts of the Hale Telescope, the Spitzer Infrared Spectrograph, and SOFIA FORCAST. Contribution to the interplanetary missions Voyager, Pioneer, Galileo, Cassini, Viking, and more.

Family Gierasch was raised with two sisters, Molly Gierasch and Lila Gierasch. His mother, Marian Bookhout Gierasch, and sister Lila Gierasch studied at Mount Holyoke College. Lila followed Peter's footsteps and completed her post-graduate study at Harvard University. Gierasch was married for 59 years to Maida Gierasch. They had two children; their eldest son Adam Gierasch followed by their daughter Amanda.

Publications Throughout his career, Gierasch contributed as an author or co-author to an impressive 64 publications.

References

Illustrations

Worked examples

Example 1 — a first encounter with Peter Gierasch

Start with the simplest possible case. Write down what Peter Gierasch 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 Peter Gierasch 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 Peter Gierasch 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 Peter Gierasch

In research: Peter Gierasch 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 Peter Gierasch 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: Peter Gierasch is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1941 births, 2023 deaths, 20th-century American astronomers, so understanding it makes those chapters shorter.
In everyday life: Look for Peter Gierasch 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.

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How to study Peter Gierasch in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Peter Gierasch 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 Peter Gierasch out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Peter Gierasch in simple terms?

Peter Jay Gierasch (19 December 1941 – 20 January 2023) was an American astronomer and astrophysicist. Life In 1962, Peter Jay Gierasch received his bachelor's degree in physics from Harvard University.

Why does Peter Gierasch 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 Peter Gierasch?

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 Peter Gierasch.