astronomy

III Zw 2

III Zw 2 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 III Zw 2 rather than just read about it. In short: III Zw 2 is a Seyfert 1 galaxy located in the Pisces constellation. It has a redshift of 0.089 and is notable as the first of its kind to exhibit a superluminal jet.

Key takeaways

III Zw 2 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect III Zw 2 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of III Zw 2 from memory before moving on to harder problems.

Reference excerpt

III Zw 2 is a Seyfert 1 galaxy located in the Pisces constellation. It has a redshift of 0.089 and is notable as the first of its kind to exhibit a superluminal jet.

Discovery III Zw 2 was first discovered by Fritz Zwicky via a 48-inch Schmidt survey as a stellar object with faint wisps. However, it was confirmed to have a Seyfert morphology with classical broadline characteristic based on further spectroscopic studies. It was also included in Palomar Green quasar sample.

Characteristics The host galaxy of III Zw 2 was initially classified as a spiral galaxy. However according to a recent study made on its budge and disk decomposition via Hubble Space Telescope in 2009, it has since been reclassified as an elliptical galaxy. It has a star-forming tidal bridge feature indicating a merger with a companion galaxy. Furthermore, III Zw 2 belongs to a class of radio-intermediate quasars and is a member of a triple galaxy system.

Active nucleus The nucleus of III Zw 2 is active. In additional, to its superluminal jet, the galaxy shows two distinctive γ-ray flares happening between November 2009 and May 2010, according to observations by Fermi-LAT. It is also known to have a highly variable radio core flux density between factor of 20-30.

Black hole III Zw 2 contains a supermassive black hole of 7.4 × 108 M☉. The black hole is responsible for producing an ionized wind outflow with a velocity of (−1780 ± 670) km s−1. Approximately every five years the galaxy emits dramatic radio outbursts.

References

Illustrations

Worked examples

Example 1 — a first encounter with III Zw 2

Start with the simplest possible case. Write down what III Zw 2 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 III Zw 2 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 III Zw 2 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 III Zw 2

In research: III Zw 2 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 III Zw 2 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: III Zw 2 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Active galaxies, Markarian galaxies, Pisces (constellation), so understanding it makes those chapters shorter.
In everyday life: Look for III Zw 2 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 III Zw 2 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what III Zw 2 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 III Zw 2 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is III Zw 2 in simple terms?

III Zw 2 is a Seyfert 1 galaxy located in the Pisces constellation. It has a redshift of 0.089 and is notable as the first of its kind to exhibit a superluminal jet.

Why does III Zw 2 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 III Zw 2?

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 III Zw 2.