astronomy

PKS 0528+134

PKS 0528+134 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 PKS 0528+134 rather than just read about it. In short: PKS 0528+134 is a distant blazar located in the Galactic anticenter towards the constellation of Orion. This is a compact radio quasar, classified as radio-loud with a redshift of (z) 2.07 yet having low polarization.

Key takeaways

PKS 0528+134 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect PKS 0528+134 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of PKS 0528+134 from memory before moving on to harder problems.

Reference excerpt

PKS 0528+134 is a distant blazar located in the Galactic anticenter towards the constellation of Orion. This is a compact radio quasar, classified as radio-loud with a redshift of (z) 2.07 yet having low polarization. It was first discovered in 1977 by astronomers as a radio source and contains a radio spectrum that appears as flat making it a flat-spectrum radio quasar. It has an optical brightness of 19.5.

Description PKS 0528+134 is found variable on the electromagnetic spectrum and a source of high energy gamma rays. It showed long-term variability on time scales at high radio frequencies. Between 1981 and 1982, PKS 0528+134 exhibited a drop in its 4.8, 8.0 and 14.5 GHz flux value by about 4-5 Jansky (Jy), with a lowest recorded flux of 1.5 Jy in 1990. A drastic increase in gamma ray emission was detected in PKS 0528+134 beginning 1991. That same year, it showed a nonthermal outburst suggesting a period of relativistic plasma being ejected. PKS 0528+134 also had two radio millimeter outbursts. Between the months of July and December 2009, PKS 0528+134 reached a state of quiescence. When observed by astronomers, they found no traces of either significant flux or spectral variability in most radio bands although flux variability was discovered in optical regime, followed by a weak pattern of spectral softening. This suggests the accretion disk of PKS 0528+134 might play a role at the optical spectrum's blue end. Optical spectropolarimetry also suggests PKS 0528+134 has an extreme degree of polarization, indicating possibility of synchrotron radiation providing emission at the optical spectrum's red end. Radio images made by the Very Long Baseline Interferometry at 22 GHz shows radio structure of PKS 0528+134 as a 5 mas extended one-sided jet with a more diffused northwest component at a position angle of 50° and two other components located in the west direction of various distances. At 43 GHz, the structure is further resolved into five components showing superluminal motions reaching high as 23 h−1 with increasing motions per distance from the core. An inverted core spectrum is also discovered. Very Long Baseline Array finds three of its components shows progressive acceleration with a strongly polarized northern knot feature. A new component is also found at higher frequencies. The supermassive black hole mass of PKS 0528+134 is estimated to be 85 × 108 M☉ based on an equation calculation integrated between the values of 3 and 30 MeV via flux measurements made by the Imaging Compton Telescope. A luminosity value of 4.1 × 1049 ergs has also been calculated for the object as well.

References

External links PKS 0528+134 on SIMBAD PKS 0528+134 on NASA/IPAC Extragalactic Database

Illustrations

Worked examples

Example 1 — a first encounter with PKS 0528+134

Start with the simplest possible case. Write down what PKS 0528+134 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 PKS 0528+134 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 PKS 0528+134 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 PKS 0528+134

In research: PKS 0528+134 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 PKS 0528+134 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: PKS 0528+134 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Active galaxies, Astronomical objects discovered in 1977, Blazars, so understanding it makes those chapters shorter.
In everyday life: Look for PKS 0528+134 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 PKS 0528+134 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what PKS 0528+134 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 PKS 0528+134 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is PKS 0528+134 in simple terms?

Why does PKS 0528+134 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 PKS 0528+134?

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 PKS 0528+134.