astronomy

SDSS J110012.38+084616.3

SDSS J110012.38+084616.3 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 J110012.38+084616.3 rather than just read about it. In short: SDSS J110012.38+084616.3 known as J1100+0846, is a type 2 quasar located in the constellation of Leo. The redshift of the object is (z) 0.1004 and it was first discovered by astronomers in March 2009 through an infrared photometric study.

Key takeaways

SDSS J110012.38+084616.3 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 J110012.38+084616.3 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of SDSS J110012.38+084616.3 from memory before moving on to harder problems.

Reference excerpt

SDSS J110012.38+084616.3 known as J1100+0846, is a type 2 quasar located in the constellation of Leo. The redshift of the object is (z) 0.1004 and it was first discovered by astronomers in March 2009 through an infrared photometric study. It is classified as radio-quiet.

Description SDSS J110012.38+084616.3 is classified as a large moderately inclined type SBb barred spiral galaxy with an undisturbed appearance based on it showing no evidence of any galaxy mergers and a total star formation rate estimating to be 34 M☉ per year. There are presence of spiral arms in the galaxy with carbon monoxide (CO) mapping describing the first arm as having a negative velocity on the western bar edge and a positive velocity on the second arm on the eastern bar edge. A large region of molecular gas is found in the galaxy according to imaging made with Atacama Large Millimeter Array. The doubly ionized oxygen [O III] emission appears to be very compact when imaged with Advanced Camera for Surveys instrument abroad the Hubble Space Telescope. Based on imaging, it has a near circular appearance and a small tail slightly extended towards the south-east direction. In its nucleus, there is radio emission blueshifted to southeast with a full width at half maximum velocity of 1000 kilometers per seconds. Disturbed kinematics can be seen extending northwest from the nucleus to single-component emission lines. The radio morphology of the galaxy can be classified as having an irregular radio features with nuclear components either being dominated by its jet, lobe or by wind, and a linear size of 0.8 kiloparsec. The kinetic power of the jet is estimated to be 8.3+2.5−2 × 1043 erg s−1. A study made in 2024, has shown the nuclear radio emission is elongating towards the direction that is consistent with its radio structure. Observations also showed there is presence of hydrogen-alpha emission in the galaxy tracing both its disk and spiral arms. A moment 2 map found the velocity dispersion is mainly low in relation with the arms whereas the central region has a high turbulence of gas with velocity dispersions reaching upwards to 500 kilometers per seconds. Results also showed the total mass of the outflow in the galaxy is 6 M☉ per year with an outflow kinetic power of 1.8 ± 2.8 × 1042 erg s−1 and maximum outflow velocity of 977 ± 120 kilometers per seconds. In its emission line profiles, broad wings are present over the field of view with an extent of 9 x 6 kiloparsecs. Crystalline silicate features were also detected in weak radio emission of the galaxy's spectra at a 23 ɥm band by James Webb Space Telescope, suggesting the galaxy is moderately obscured.

References

External links SDSS J110012.38+084616.3 on SIMBAD

Illustrations

Worked examples

Example 1 — a first encounter with SDSS J110012.38+084616.3

Start with the simplest possible case. Write down what SDSS J110012.38+084616.3 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 J110012.38+084616.3 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 J110012.38+084616.3 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 J110012.38+084616.3

In research: SDSS J110012.38+084616.3 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 J110012.38+084616.3 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 J110012.38+084616.3 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Active galaxies, Astronomical objects discovered in 2009, Barred spiral galaxies, so understanding it makes those chapters shorter.
In everyday life: Look for SDSS J110012.38+084616.3 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 J110012.38+084616.3 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what SDSS J110012.38+084616.3 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 J110012.38+084616.3 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is SDSS J110012.38+084616.3 in simple terms?

Why does SDSS J110012.38+084616.3 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 J110012.38+084616.3?

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 J110012.38+084616.3.