astronomy

MS 0440+0204 BCG

MS 0440+0204 BCG 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 MS 0440+0204 BCG rather than just read about it. In short: MS 0440+0204 BCG is a massive elliptical galaxy of type-cD located in the constellation of Taurus. The redshift of the galaxy is (z) 0.198 and it was first discovered by astronomers in October 1993.

Key takeaways

MS 0440+0204 BCG belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect MS 0440+0204 BCG to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of MS 0440+0204 BCG from memory before moving on to harder problems.

Reference excerpt

MS 0440+0204 BCG is a massive elliptical galaxy of type-cD located in the constellation of Taurus. The redshift of the galaxy is (z) 0.198 and it was first discovered by astronomers in October 1993. This galaxy contains multiple nuclei and is the brightest cluster galaxy (BCG) located in the center of the MS 0440+0204 galaxy cluster.

Description MS 0440+204 BCG is categorized as a type-cD galaxy. It has a compact appearance and is made up of six close galaxies or components merging together to form a single giant elliptical galaxy. The velocity difference of the two known components is estimated to be 2,600 kilometers per second. A low surface brightness halo with a diameter of 157 kiloparsecs envelops the components. The core of the BCG has a red appearance with a total near ultraviolet magnitude of 21.84 ± 0.44. The total mass of the BCG is estimated to be 0.53 × 1012 M☉. There is an intermediate red stellar population in the BCG, but no presence of a young stellar component. The stars in the inner regions have an estimated age of 4,370 ± 160 million years old, while the stars in the outer regions are around 15,400 ± 6280 million years. A study published in 1993, has found the presence of 15 gravitational lensing arc features surrounding the BCG based on charged-coupled device (CCD) imaging. The largest known arc has a length of 10 arcseconds, however it is unresolved, while the other arc features trace out a 90 kiloparsec radius. There are also detections of hydrogen-alpha emission, suggesting cooling flow may be present in the BCG. In 2009, the BCG was found to contain a radio source, classifying it as a radio galaxy. The radio power is estimated to be 34.2 ± 0.1 × 1023 W Hz−1 and the radio flux density is 30.2 ± 0.07 mJy.

References

External links MS 0440+0204 BCG 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 MS 0440+0204 BCG

Start with the simplest possible case. Write down what MS 0440+0204 BCG 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 MS 0440+0204 BCG 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 MS 0440+0204 BCG 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 MS 0440+0204 BCG

In research: MS 0440+0204 BCG 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 MS 0440+0204 BCG 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: MS 0440+0204 BCG is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astronomical objects discovered in 1993, Elliptical galaxies, LEDA objects, so understanding it makes those chapters shorter.
In everyday life: Look for MS 0440+0204 BCG 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 MS 0440+0204 BCG in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what MS 0440+0204 BCG 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 MS 0440+0204 BCG out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is MS 0440+0204 BCG in simple terms?

MS 0440+0204 BCG is a massive elliptical galaxy of type-cD located in the constellation of Taurus. The redshift of the galaxy is (z) 0.198 and it was first discovered by astronomers in October 1993.

Why does MS 0440+0204 BCG 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 MS 0440+0204 BCG?

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 MS 0440+0204 BCG.