astronomy

Pavo–Indus Supercluster

Pavo–Indus Supercluster 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 Pavo–Indus Supercluster rather than just read about it. In short: The Pavo–Indus Supercluster is a neighboring supercluster located about 60–70 Mpc (196–228 Mly) away in the constellations of Pavo, Indus, and Telescopium. The supercluster contains three main clusters, Abell 3656, Abell 3698, and Abell 3742.

Key takeaways

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

Reference excerpt

The Pavo–Indus Supercluster is a neighboring supercluster located about 60–70 Mpc (196–228 Mly) away in the constellations of Pavo, Indus, and Telescopium. The supercluster contains three main clusters, Abell 3656, Abell 3698, and Abell 3742. Other groups and clusters in the supercluster include the NGC 6769 Group and Abell S805 (IC 4765 Group, Pavo II, DRCG 1842-63) and the massive Norma Cluster. In 2014, it was announced that the Pavo–Indus Supercluster is a lobe in a greater supercluster, Laniakea, that is centered on the Great Attractor. The Virgo Supercluster would also be part of this greater supercluster, thus becoming the local supercluster.

Structure The Pavo–Indus Supercluster exhibits a wall or filamentary structure that extends to a total length of 66 Mpc (215 Mly). The supercluster along with the Telescopium−Grus Cloud form parts of a wall bounding the Local Void and the Sculptor Void.

Nearby superclusters

Centaurus Supercluster

In 1983, in a paper by Winkler et al it was suggested based on redshift maps of the distribution of galaxies that the Pavo–Indus Supercluster may be connected to the Centaurus Supercluster. Later in 1984, in a collaboration with astronomer Tony Fairall and in a separate paper by Fairall published in 1988 titled "A redshift map of the Triangulum Australe–Ara region: further indication that Centaurus and Pavo are one and the same supercluster" it was concluded based on distribution of galaxies in redshift space that the Pavo–Indus supercluster was indeed connected to the Centaurus and Hydra supercluster and that the Virgo Supercluster was an appendage of a larger structure involving these superclusters. Later studies concluded that Pavo–Indus formed part of a wall of galaxies similar in size to the CfA2 Great Wall, dubbed the Norma Wall with the Norma Cluster at its center similar to the Coma Cluster. This wall encompasses the Pavo–Indus supercluster through the Norma Cluster, passing the ZOA in the Great Attractor region, to meet up with the Centaurus–Crux Cluster at a redshift at about 5,700–6,200 km/s s and the CIZA J1324.7−5736 cluster at a redshift of 5700 km/s while also splitting off to form the Centaurus Wall passing the galactic plane to meet up with Centaurus Cluster where the supercluster originates.

Perseus–Pisces Supercluster

Di Nel la H. et al found no evidence of a connection between Pavo–Indus and the Perseus–Pisces Supercluster. However, Tully et al. revealed the existence of a filamentary extension of the Pavo–Indus Supercluster known as the Arch that caps the Local Void in the supergalactic north and provides a connection to the Perseus–Pisces Supercluster before terminating close to the NGC 7242 Cluster.

Ophiuchus Supercluster

The Pavo–Indus supercluster lies physically close to the Ophiuchus Supercluster and may be connected in an unknown filament between the two superclusters.

See also Abell catalogue Large-scale structure of the universe List of Abell clusters Supercluster

References

External links The Pavo-Indus Supercluster from An Atlas of the Universe

Illustrations

Worked examples

Example 1 — a first encounter with Pavo–Indus Supercluster

Start with the simplest possible case. Write down what Pavo–Indus Supercluster 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 Pavo–Indus Supercluster 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 Pavo–Indus Supercluster 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 Pavo–Indus Supercluster

In research: Pavo–Indus Supercluster 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 Pavo–Indus Supercluster 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: Pavo–Indus Supercluster is common in secondary-school and first-year university syllabi. It links to neighbouring topics Galaxy superclusters, Laniakea Supercluster, Pavo-Indus Supercluster, so understanding it makes those chapters shorter.
In everyday life: Look for Pavo–Indus Supercluster 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 Pavo–Indus Supercluster in 20 minutes

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

Frequently asked questions

What is Pavo–Indus Supercluster in simple terms?

Why does Pavo–Indus Supercluster 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 Pavo–Indus Supercluster?

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 Pavo–Indus Supercluster.