astronomy

PKS 0736+017

PKS 0736+017 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 0736+017 rather than just read about it. In short: PKS 0736+017 is a blazar located in the constellation of Canis Minor. This object is also a highly polarized compact radio quasar.

Key takeaways

PKS 0736+017 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 0736+017 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of PKS 0736+017 from memory before moving on to harder problems.

Reference excerpt

PKS 0736+017 is a blazar located in the constellation of Canis Minor. This object is also a highly polarized compact radio quasar. Its source having a radio spectrum, appears to be flat, making it a flat-spectrum radio quasar. It has a redshift of (z) 0.189 and is hosted in a large elliptical galaxy with a half light radius measurement of re = 13 kiloparsecs. The black hole mass in PKS 0736+017 is 7.32+0.89-0.91 × 107 M☉ based on a full width at half maximum (FWHM) scaling factor and virial relation. PKS 0736+017 is found violent variable across its electromagnetic spectrum. It showed an outburst in December 2001 where its brightness level reached a maximum of 14.90 in the B band, 13.79 in the R band and 14.34 in the V band. The spectral slope remained constant while brightness level showed a sharp decrease by 0.3 magnitude during 4.5 hours. In 2002, PKS 0736+017 exhibited multiple variability behaviors. During most nights, the quasar was in an optical faint state displaying fluctuations on a small-scale. When observed during three nights, it became more variable and brighter. In its active state, PKS 0736+017 showed a rapid flare followed by quasi-periodic low-amplitude variations. Accompanied by the flare, were complex oscillations that soon continued and clearly shown once the quasar reached its high state. One week later, another flare was observed although not rapid as the first. During the quasar's brighten state, its color variation became redder. In February 2015, the High Energy Stereoscopic System in Namibia, detected high-energy emission from PKS 0736+017 indicating the presence of a gamma ray flare. Prior in 2014, a near-infrared flare was seen in the quasar. In 2023, renewed gamma ray activity was detected by Large Area Telescope. The optical domain of PKS 0736+017 shows strong forbidden and permitted emission lines. Not to mention, its broad hydrogen emission lines are known to show significant disparities. Between 1978 and 1980, the H-beta line intensity in PKS 0736+017 decreased by 40 percent, with it increasing by 50 percent between 1985 and 1986. As for its H-gamma line intensity, a large fractional change is seen. In additional, its visible spectrum is found identical to 3C 273, which both quasars have iron, hydrogen and helium permitted lines but no forbidden lines.

References

External links PKS 0736+017 on SIMBAD PKS 0736+017 on NASA/IPAC Extragalactic Database

Illustrations

Worked examples

Example 1 — a first encounter with PKS 0736+017

Start with the simplest possible case. Write down what PKS 0736+017 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 0736+017 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 0736+017 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 0736+017

In research: PKS 0736+017 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 0736+017 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 0736+017 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Active galaxies, Blazars, Canis Minor, so understanding it makes those chapters shorter.
In everyday life: Look for PKS 0736+017 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 0736+017 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what PKS 0736+017 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 0736+017 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is PKS 0736+017 in simple terms?

PKS 0736+017 is a blazar located in the constellation of Canis Minor. This object is also a highly polarized compact radio quasar.

Why does PKS 0736+017 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 0736+017?

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 0736+017.