astronomy

PSR B1259−63

PSR B1259−63 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 PSR B1259−63 rather than just read about it. In short: PSR B1259−63 is a pulsar and member of an eclipsing binary star system with the blue O9.5Ve-class star SS 2883. The pair has an eccentric orbit that is inclined to the line of sight from Earth by about 36°, leading to a 40-day-long eclipse each time the pulsar passes behind the star.

Key takeaways

PSR B1259−63 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect PSR B1259−63 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of PSR B1259−63 from memory before moving on to harder problems.

Reference excerpt

PSR B1259−63 is a pulsar and member of an eclipsing binary star system with the blue O9.5Ve-class star SS 2883. The pair has an eccentric orbit that is inclined to the line of sight from Earth by about 36°, leading to a 40-day-long eclipse each time the pulsar passes behind the star. The pulsar has a period of 47.762 milliseconds (ms) and a luminosity of 8.3 × 1035 erg/s. It emits very high energy gamma rays that vary on a time scale of several days. The star SS 2883 has about 22.5 solar masses and is 10.4 solar radii in size. The rate of rotation is about 280 km/s at the equator, or 70% of the breakup velocity.

References

External links http://jumk.de/astronomie/special-stars/psr-b-1259-63.shtml TeVCat 2.0: PSR B1259-63

Illustrations

Worked examples

Example 1 — a first encounter with PSR B1259−63

Start with the simplest possible case. Write down what PSR B1259−63 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 PSR B1259−63 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 PSR B1259−63 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 PSR B1259−63

In research: PSR B1259−63 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 PSR B1259−63 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: PSR B1259−63 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Centaurus, Compact object stubs, Durchmusterung objects, so understanding it makes those chapters shorter.
In everyday life: Look for PSR B1259−63 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 PSR B1259−63 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what PSR B1259−63 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 PSR B1259−63 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is PSR B1259−63 in simple terms?

Why does PSR B1259−63 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 PSR B1259−63?

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 PSR B1259−63.