astronomy

Markarian 1073

Markarian 1073 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 Markarian 1073 rather than just read about it. In short: Markarian 1073 is a type 2 Seyfert galaxy located in the constellation of Perseus. The redshift of the galaxy is estimated to be (z) 0.023 and it was first discovered in the Markarian survey by astronomers in April 1979.

Key takeaways

Markarian 1073 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Markarian 1073 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Markarian 1073 from memory before moving on to harder problems.

Reference excerpt

Markarian 1073 is a type 2 Seyfert galaxy located in the constellation of Perseus. The redshift of the galaxy is estimated to be (z) 0.023 and it was first discovered in the Markarian survey by astronomers in April 1979. The galaxy is classified to be a member of the Perseus Cluster (Abell 426), where it is located 0.85° from the cluster center.

Description Markarian 1073 is a Seyfert 2 galaxy. It is described as a type SB(s)b barred spiral galaxy. Its central nucleus is found to have a bright appearance based on optical imaging. There is a bar feature present, which is surrounded by an irregular ring that displays hydrogen-alpha knots towards both north and east, as well as outer fainter filaments located northwest. The inner region of the bar shows a prominent two-armed spiral arm structure. The optical spectrum of the galaxy is mainly characterized by narrow and strong emission lines that are slightly blue in color, with full width at half maximum velocities of 250 kilometers per seconds. There is also a line-emitting region that is located four arcseconds away from the central nucleus. There is little evidence that confirms if the galaxy contains a broad line region or not. Extended radio emission has also been detected in the galaxy's disk with the total diameter being around 1.1 kiloparsecs. The nuclear spectrum of the galaxy is main characterized by a silicate feature displaying moderate absorption, with further traces of weak polycyclic aromatic hydrocarbon (PAH) emission. This emission has also been detected from its nucleus to around 400 and 300 parsecs away, suggesting the galaxy underwent star formation activity. The star formation activity of the galaxy is estimated to be around 33 M☉ per year in the range between 6.5 and 69.

References

External links Markarian 1073 on SIMBAD Markarian 1073 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

Illustrations

Worked examples

Example 1 — a first encounter with Markarian 1073

Start with the simplest possible case. Write down what Markarian 1073 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 Markarian 1073 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 Markarian 1073 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 Markarian 1073

In research: Markarian 1073 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 Markarian 1073 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: Markarian 1073 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Active galaxies, Astronomical objects discovered in 1979, MCG objects, so understanding it makes those chapters shorter.
In everyday life: Look for Markarian 1073 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Markarian 1073” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Markarian 1073 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Markarian 1073 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 Markarian 1073 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Markarian 1073 in simple terms?

Why does Markarian 1073 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 Markarian 1073?

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 Markarian 1073.