astronomy

Judith Pipher

Judith Pipher 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 Judith Pipher rather than just read about it. In short: Judith Lynn Pipher (née Bancroft, June 18, 1940 – February 21, 2022) was a Canadian-born American astrophysicist and observational astronomer. She was Professor Emerita of Astronomy at the University of Rochester and directed the C.

Key takeaways

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

Reference excerpt

Judith Lynn Pipher (née Bancroft, June 18, 1940 – February 21, 2022) was a Canadian-born American astrophysicist and observational astronomer. She was Professor Emerita of Astronomy at the University of Rochester and directed the C. E. K. Mees Observatory from 1979 to 1994. She made important contributions to the development of infrared detector arrays in space telescopes.

Early life and education Judith Lynn Bancroft was born on June 18, 1940, in Toronto, Ontario, to Earl Lester Alexander Bancroft and Agnes May Kathleen (née McGowan) Bancroft. She was named Junior Miss Homemaker of Ontario when she was sixteen years old. She graduated from Leaside High School in 1958 and earned a B.A. in astronomy from the University of Toronto in 1962. Following her graduation, she moved to the Finger Lakes region of upstate New York where she taught science and attended Cornell University. In the late 1960s, she worked as a graduate student of Martin Harwit on a cryogenic rocket telescope experiment. She received her Ph.D from Cornell in 1971. Her dissertation, Rocket Submillimeter Observations of the Galaxy and Background, led her into research in the nascent fields of submillimeter and infrared astronomy.

Career and research Pipher joined the faculty of the University of Rochester's Physics and Astronomy Department in 1971 as an Instructor. From 1979 to 1994, Pipher was director of University of Rochester's C. E. K. Mees Observatory. In the 1970s and 1980s, she made observations from the Kuiper Airborne Observatory. Pipher and William J. Forrest achieved promising results with a 32×32-pixel array of indium antimonide (InSb) detectors at a NASA Ames workshop. They reported their results in 1983. That year Pipher and her colleagues were among the first to use an infrared array camera to capture starburst galaxies. For the next two decades, Pipher developed ultra-sensitive infrared InSb arrays with the help of colleague William J. Forrest. The Infrared Array Camera (IRAC) for the Spitzer Space Telescope was launched in August 2003. She also worked with Dan Watson and on the development of mercury cadmium telluride (HgCdTe) arrays. Pipher's observational research concentrated on star formation studies and the arrays she designed have been used to observe astronomical phenomena such as planetary nebulae, brown dwarfs, and the Galactic Center. She authored over 200 papers and scientific articles. Pipher was a member of a team at the University of Rochester that developed the NEOCam sensor, a HgCdTe infrared-light sensor intended for the proposed Near-Earth Object Camera. The sensor improves the ability to detect potentially hazardous objects such as asteroids.

Honors and awards Pipher received the Susan B. Anthony Lifetime Achievement Award from the University of Rochester in 2002. She was inducted into the National Women's Hall of Fame in 2007 and became involved with its administration. A 2009 article in Discover magazine indicated that Pipher was "considered by many to be the mother of infrared astronomy." Asteroid 306128 Pipher was named in her honor. The official naming citation was published by the Minor Planet Center on January 31, 2018 (M.P.C. 108698). She was elected a Legacy Fellow of the American Astronomical Society in 2020.

Personal life and death While at Cornell, Judith met Robert E. Pipher (1934–2007), who brought her four stepchildren when the couple married in 1965. The Piphers lived at Cayuga Lake in Seneca Falls, New York, where she was vice president of the Seneca Museum board of directors. On the occasion of her 80th birthday, June 18, 2020, was proclaimed to be "Dr. Judy Pipher Day" in the Town of Seneca Falls. She died on February 21, 2022, at the age of 81.

References

Further reading Rieke, George H.; Rieke, Marcia J.; McMurtry, Craig W. (2022). "Judith Pipher (1940–2022)". Nature Astronomy. 6 (4): 410. doi:10.1038/s41550-022-01654-7. ISSN 2397-3366. S2CID 248110215. Forrest, William J.; Horn, Hugh M. Van; Watson, Dan M. (2022). "Judith L. Pipher (1940–2022)". Bulletin of the AAS. 54 (1). doi:10.3847/25c2cfeb.1754123a.

Illustrations

Worked examples

Example 1 — a first encounter with Judith Pipher

Start with the simplest possible case. Write down what Judith Pipher 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 Judith Pipher 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 Judith Pipher 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 Judith Pipher

In research: Judith Pipher 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 Judith Pipher 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: Judith Pipher is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1940 births, 2022 deaths, 20th-century American women scientists, so understanding it makes those chapters shorter.
In everyday life: Look for Judith Pipher 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 Judith Pipher in 20 minutes

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

Frequently asked questions

What is Judith Pipher in simple terms?

Why does Judith Pipher 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 Judith Pipher?

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 Judith Pipher.