astronomy

SHBL J001355.9−185406

SHBL J001355.9−185406 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 SHBL J001355.9−185406 rather than just read about it. In short: SHBL J001355.9−185406 is a BL Lacertae object located in the constellation of Cetus. The redshift of the object is (z) 0.094 and it was first discovered as a bright astronomical X-ray source by astronomers in 2000 where it was identified with a galaxy with an apparent magnitude of 17.0.

Key takeaways

SHBL J001355.9−185406 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect SHBL J001355.9−185406 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of SHBL J001355.9−185406 from memory before moving on to harder problems.

Reference excerpt

SHBL J001355.9−185406 is a BL Lacertae object located in the constellation of Cetus. The redshift of the object is (z) 0.094 and it was first discovered as a bright astronomical X-ray source by astronomers in 2000 where it was identified with a galaxy with an apparent magnitude of 17.0. This object has also been described as a blazar with an active galactic nucleus.

Description SHBL J001355.9−185406 is categorized as a blazar of low-redshift. It was shown to display gamma-rays at high energies between July 2008 and August 2010, observed by High Energy Stereoscopic System (HESS), however it did not shown any signs of extreme variability when observed by Automatic Telescope for Optical Monitoring (ATOM). The mean R-band flux was calculated around 15.41 ± 0.03 magnitude while the B-band flux was at 17.52 ± 0.05 magnitude. One near-brightening event was shown on November 10, 2010, with the flux at near-infrared range ballooning up by 0.7 magnitudes in brightness. Radio observations made in 2014 at low frequency high resolutions, have found the radio structure is mainly compact with a single radio core component and a radio jet-like or a lobe feature described as one sided that is extending southwest from the central nucleus. The feature is found as edge-brightened and has a projected size of about 344 kiloparsecs and a total luminosity of around 5 × 1039 erg/s. Further evidence suggests the structure is further divided into three different distinctive components with a steep radio spectrum.

References

External links SHBL J001355.9−185406 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 SHBL J001355.9−185406

Start with the simplest possible case. Write down what SHBL J001355.9−185406 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 SHBL J001355.9−185406 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 SHBL J001355.9−185406 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 SHBL J001355.9−185406

In research: SHBL J001355.9−185406 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 SHBL J001355.9−185406 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: SHBL J001355.9−185406 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Active galaxies, Astronomical objects discovered in 2000, BL Lacertae objects, so understanding it makes those chapters shorter.
In everyday life: Look for SHBL J001355.9−185406 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 SHBL J001355.9−185406 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what SHBL J001355.9−185406 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 SHBL J001355.9−185406 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is SHBL J001355.9−185406 in simple terms?

Why does SHBL J001355.9−185406 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 SHBL J001355.9−185406?

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 SHBL J001355.9−185406.