astronomy

IERS B2352+495

IERS B2352+495 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 IERS B2352+495 rather than just read about it. In short: IERS B2352+495 is a radio galaxy located 2.7 billion light-years in the constellation of Cassiopeia. Its redshift is (z) 0.237.

Key takeaways

IERS B2352+495 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect IERS B2352+495 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of IERS B2352+495 from memory before moving on to harder problems.

Reference excerpt

IERS B2352+495 is a radio galaxy located 2.7 billion light-years in the constellation of Cassiopeia. Its redshift is (z) 0.237. It was first discovered as a radio source displaying a flat radio spectra by astronomers in 1978 and subsequently identified with its counterpart in 1979.

Description IERS B2352+495 is hosted by an elliptical galaxy. It is described as an example of a prototype compact symmetrical object with a radio luminosity of 4.8 × 1043 h−2 erg s−1. It is a Gigahertz peaked spectrum source. The galaxy shows weak variability on timescales and low polarization of 0.2% to 0.7%. The central supermassive black hole mass for this galaxy is estimated to be 1.58 × 108 M☉. The radio structure of IERS B2352+495 is found to be symmetrical, according to P.N. Wilkinson who identified it showing two mini-lobes in the outer part. It is a triple source; mainly made up of a compact component, a much weaker but large component and a middle component that is split into two other subcomponents. When shown at multi-epoch observations by Very Long Baseline Array, it has hotspots and a radio core. The hotspots show no evidence of superluminal motion. Imaging observations at milliarcseconds showed the source contains multiple components, with most of its flux contained inside two of its components in the core region. A narrow radio jet can be en seen south of the component, possibly disrupted by an interstellar material encounter. An investigation showed the hotspot components of IERS B2352+495 as well separated. Based from observations these components are estimated to have angular separations of 21.06 ± 2.70 per year which in turn, corresponds to a velocity separation of 0.20 ± 0.02 per hour. These hotspots also have estimated pressure masses of 2 × 1011 M☉. H I absorption has been discovered towards the galaxy with the spectrum displaying broad and narrow components redshifted by 129.9 ± 0.8 kilometers per seconds. In August 1994, IERS B2352+495 displayed an extreme scattering event. Based from observations the galactic foreground of the source is shown to be coincident with the galactic continuum, without signs of a shell-like structure.

References

External links IERS B2352+495 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images IERS B2352+495 on SIMBAD

Illustrations

Worked examples

Example 1 — a first encounter with IERS B2352+495

Start with the simplest possible case. Write down what IERS B2352+495 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 IERS B2352+495 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 IERS B2352+495 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 IERS B2352+495

In research: IERS B2352+495 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 IERS B2352+495 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: IERS B2352+495 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Active galaxies, Astronomical objects discovered in 1978, Cassiopeia (constellation), so understanding it makes those chapters shorter.
In everyday life: Look for IERS B2352+495 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 IERS B2352+495 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what IERS B2352+495 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 IERS B2352+495 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is IERS B2352+495 in simple terms?

IERS B2352+495 is a radio galaxy located 2.7 billion light-years in the constellation of Cassiopeia. Its redshift is (z) 0.237.

Why does IERS B2352+495 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 IERS B2352+495?

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 IERS B2352+495.