astronomy

SDSS J103034.78+141541.8

SDSS J103034.78+141541.8 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 SDSS J103034.78+141541.8 rather than just read about it. In short: SDSS J103034.78+141541.8 also known as RX J1035.5+1416, is a radio galaxy located in the constellation of Leo. The redshift of the galaxy is (z) 0.31 and it was first discovered as a faint source from the ROSAT survey in May 2000.

Key takeaways

SDSS J103034.78+141541.8 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect SDSS J103034.78+141541.8 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of SDSS J103034.78+141541.8 from memory before moving on to harder problems.

Reference excerpt

SDSS J103034.78+141541.8 also known as RX J1035.5+1416, is a radio galaxy located in the constellation of Leo. The redshift of the galaxy is (z) 0.31 and it was first discovered as a faint source from the ROSAT survey in May 2000.

Description SDSS J103034.78+141541.8 is an elliptical galaxy with an optical morphological classification of Type E. It is a luminous red galaxy residing as the brightest cluster galaxy (BCG) of the galaxy cluster, WHL J103034.8+141542 with at least 61 confirmed galaxy member candidates. The total r-band magnitude of the galaxy is estimated to be 16.65 and its r-band absolute magnitude is -24.30 magnitude. The galaxy dominates the center of a fossil group, with its estimated half viral radius being 0.875 arcmin. It is also an X-ray source, with the source 61 arcseconds from the center. The total X-ray luminosity is 2.07E+0.44 erg s-1 between 0.5 to 2 keV. The nucleus is active and it has been classified as a non-bent tailed radio galaxy containing a compact radio source, with its total flux density of 6.50 mJy obtained by the NRAO VLA Sky Survey (NVSS) at 1.4 GHz frequencies. The total radio power has been estimated to be 2.11 × 1024 WHz-1. A radio core has been detected by the Faint Images of the Radio Sky at Twenty-Centimeters (FIRST), with the core flux density estimated as 4.72 mJy. The radio morphology of the source is blended with other sources, appearing to consist of one single blob of radio emission. The luminosity distance of the source is 1673.3 megaparsecs.

References

External links SDSS J103034.78+141541.8 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 SDSS J103034.78+141541.8

Start with the simplest possible case. Write down what SDSS J103034.78+141541.8 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 SDSS J103034.78+141541.8 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 SDSS J103034.78+141541.8 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 SDSS J103034.78+141541.8

In research: SDSS J103034.78+141541.8 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 SDSS J103034.78+141541.8 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: SDSS J103034.78+141541.8 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Active galaxies, Astronomical objects discovered in 2000, Elliptical galaxies, so understanding it makes those chapters shorter.
In everyday life: Look for SDSS J103034.78+141541.8 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 SDSS J103034.78+141541.8 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what SDSS J103034.78+141541.8 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 SDSS J103034.78+141541.8 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is SDSS J103034.78+141541.8 in simple terms?

Why does SDSS J103034.78+141541.8 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 SDSS J103034.78+141541.8?

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 SDSS J103034.78+141541.8.