astronomy

QSO B1038+528A

QSO B1038+528A 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 QSO B1038+528A rather than just read about it. In short: QSO B1038+528A, also known as OL 564, is a radio-loud quasar located in the constellation of Ursa Major. The redshift of the quasar is (z) 0.678 and it was first discovered via a NRAO interferometer survey by a team of astronomers lead by F.N.

Key takeaways

QSO B1038+528A belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect QSO B1038+528A to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of QSO B1038+528A from memory before moving on to harder problems.

Reference excerpt

QSO B1038+528A, also known as OL 564, is a radio-loud quasar located in the constellation of Ursa Major. The redshift of the quasar is (z) 0.678 and it was first discovered via a NRAO interferometer survey by a team of astronomers lead by F.N. Owen in 1980, who described it along with QSO B1038+528B as an extremely close pair of quasars. The radio spectrum of the quasar is considered as flat, making it a flat-spectrum radio quasar.

Description QSO B1038+528A makes up one of the quasar pair alongside QSO B1038+528B. While the primary quasar is found to be brighter with a redshift at 0.67, the secondary quasar is faint and located at (z) 2.296. The absolute magnitude of the quasars are estimated to be 17.5 and 18.5 respectively. The separation between the quasar pair is 33 arcseconds. The radio structure of QSO B1038+528A is compact. When observed, the radio morphology is shown to be of core-jet type with a long radio jet that is extending outwards from the radio core with a distance spanning at least 50 milliarcseconds (400 parsecs) and a position angle of 22°. This jet is also found to contain a steep spectrum. Two other components are discovered in the quasar, mainly a strong component and a much weaker component. Traces of diffused radio emission have been found to surround the quasar based on radio mapping made by the Very Large Array (VLA). A study published in 1988 showed that QSO B1038+528A has evidence of superluminal motion. Based on observations, a component is found ejecting from the position of the core towards direction of north-east, travelling at a speed of 100 kilometers per second. The proper motion value for its core is found to be estimated as 31 ± 22 per year and it is also said to be shifting by 0.7 milliarcseconds between 2.3 and 8.4 GHz frequencies.

References

External links QSO B1038+528A on SIMBAD QSO B1038+528A on HyperLeda (PGC = 3510279)

Illustrations

Worked examples

Example 1 — a first encounter with QSO B1038+528A

Start with the simplest possible case. Write down what QSO B1038+528A 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 QSO B1038+528A 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 QSO B1038+528A 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 QSO B1038+528A

In research: QSO B1038+528A 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 QSO B1038+528A 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: QSO B1038+528A is common in secondary-school and first-year university syllabi. It links to neighbouring topics Active galaxies, Astronomical objects discovered in 1980, Principal Galaxies Catalogue objects, so understanding it makes those chapters shorter.
In everyday life: Look for QSO B1038+528A 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 QSO B1038+528A in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what QSO B1038+528A 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 QSO B1038+528A out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is QSO B1038+528A in simple terms?

Why does QSO B1038+528A 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 QSO B1038+528A?

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 QSO B1038+528A.