science

ULAS J133553.45+113005.2

ULAS J133553.45+113005.2 is a science 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 ULAS J133553.45+113005.2 rather than just read about it. In short: ULAS J133553.45+113005.2 (also called ULAS1335) is a T-type brown dwarf in the constellation of Virgo. It was discovered in data from the UK Infrared Telescope (UKIRT) Infrared Deep Sky Survey (UKIDSS) Large Area Survey (LAS).

Key takeaways

ULAS J133553.45+113005.2 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect ULAS J133553.45+113005.2 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of ULAS J133553.45+113005.2 from memory before moving on to harder problems.

Reference excerpt

ULAS J133553.45+113005.2 (also called ULAS1335) is a T-type brown dwarf in the constellation of Virgo. It was discovered in data from the UK Infrared Telescope (UKIRT) Infrared Deep Sky Survey (UKIDSS) Large Area Survey (LAS). Its discovery was reported June 2008. After identification, ULAS1335 was imaged using the UFTI camera on the UKIRT, on Mauna Kea, Hawaii, to confirm its photometric properties and location. It was spectroscopically confirmed as a T9 dwarf using the Gemini North telescope, also at Mauna Kea, and was imaged using IRAC on the Spitzer Space Telescope. The IRAC imaging confirmed it as the reddest (in near-to-mid-infrared colors) T dwarf yet discovered, and by inference the coolest. ULAS1334 was initially estimated to have a temperature around 550–600 K, a distance of 8–12 parsecs (26–39 light-years), and a mass of 15–31 Jupiter masses. More recent spectroscopic observations, using IRS on the Spitzer Space Telescope, give an effective temperature of 500–550 K. Since these temperature estimates are based on model comparisons, they should be treated with caution until the parallax of this object has been measured.

References

Illustrations

Worked examples

Example 1 — a first encounter with ULAS J133553.45+113005.2

Start with the simplest possible case. Write down what ULAS J133553.45+113005.2 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 ULAS J133553.45+113005.2 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 ULAS J133553.45+113005.2 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 ULAS J133553.45+113005.2

In research: ULAS J133553.45+113005.2 appears in science 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 ULAS J133553.45+113005.2 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: ULAS J133553.45+113005.2 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Brown dwarfs, T-type brown dwarfs, Virgo (constellation), so understanding it makes those chapters shorter.
In everyday life: Look for ULAS J133553.45+113005.2 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 ULAS J133553.45+113005.2 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what ULAS J133553.45+113005.2 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 ULAS J133553.45+113005.2 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is ULAS J133553.45+113005.2 in simple terms?

Why does ULAS J133553.45+113005.2 matter?

Because it connects several science 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 ULAS J133553.45+113005.2?

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 ULAS J133553.45+113005.2.