astronomy

TXS 1040+243

TXS 1040+243 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 TXS 1040+243 rather than just read about it. In short: TXS 1040+243 also known as TN J1043+4304, is a radio galaxy located in the constellation of Leo Minor. The redshift of the galaxy is (z) 0.366 and it was first discovered as an astronomical radio source by astronomers with the Bologna Northern Cross Telescope in September 1972, where it was designated as B2 1040+24B.

Key takeaways

TXS 1040+243 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect TXS 1040+243 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of TXS 1040+243 from memory before moving on to harder problems.

Reference excerpt

TXS 1040+243 also known as TN J1043+4304, is a radio galaxy located in the constellation of Leo Minor. The redshift of the galaxy is (z) 0.366 and it was first discovered as an astronomical radio source by astronomers with the Bologna Northern Cross Telescope in September 1972, where it was designated as B2 1040+24B.

Description TXS 1040+243 is an elliptical galaxy of Type E. It is also a red luminous galaxy residing as the brightest cluster galaxy of the WHL J104343.3+240447 galaxy cluster with 32 confirmed galaxy member candidates. The R-band magnitude of the galaxy is found to be 17.30 magnitude, while its absolute magnitude is -23.80. The galaxy contains an active galactic nucleus (AGN) and is categorized as a compact radio galaxy containing a non-bent type source, with its total radio flux density calculated by the NRAO VLA Sky Survey (NVSS) estimated in units of 49.80 mJy at 1.4 GHz frequencies. The radio spectrum of the source is categorized as being ultra steep with the radio spectra index of -1.59 ± 0.07α at low frequencies, with the radio structure orientated at the position angle of 90°. A study would find it is compact double made up of two unresolved components, with a major axis of 3.2 arcseconds. These components are estimated to have angular sizes of 3.2 and 1.3 arcseconds in total, with flux densities of 44.4 ± 1.4 mJy at 1365 MHz and 2.5 ± 0.59 mJy at 4860 MHz respectively. Evidence suggested the source has an elongated morphology that is mainly depicted by a single elliptical profile component, with evidence of a radio core detected by Faint Images of the Radio Sky at Twenty-Centimeters (FIRST). The core flux density is estimated to be 49.85 mJy while the total radio power is calculated to be 23.49 × 1024 WHz-1.

References

External links TXS 1040+243 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images TXS 1040+243 TXS 1040+243 on HyperLeda

Illustrations

Worked examples

Example 1 — a first encounter with TXS 1040+243

Start with the simplest possible case. Write down what TXS 1040+243 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 TXS 1040+243 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 TXS 1040+243 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 TXS 1040+243

In research: TXS 1040+243 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 TXS 1040+243 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: TXS 1040+243 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Active galaxies, Astronomical objects discovered in 1972, Elliptical galaxies, so understanding it makes those chapters shorter.
In everyday life: Look for TXS 1040+243 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 TXS 1040+243 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what TXS 1040+243 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 TXS 1040+243 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is TXS 1040+243 in simple terms?

Why does TXS 1040+243 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 TXS 1040+243?

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 TXS 1040+243.