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T-Tauri

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by

Luis Salazar

on 22 April 2014

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Transcript of T-Tauri

It was discovered by John Russell Hind in October 1852
It appeared in the Hyades Cluster AND it's in the Taurus Constellation.
It was found using VLA radio observations.

V1094 Scorpii is found in the Constellations Scorpius.
T-Tauri star
It's core temperature is not like the sun; it's core temperature is not hot enough for nuclear fusion to occur.
T-Tauri Star
T-Tauri stars begins developing solar winds when the core hot enough for nuclear fusion to occur.
The presence of an accretionary disc makes the solar wind very violent and jet-like.
History

T-Tauri
named after the prototype star in the constellation Taurus

T Tauri is the prototype for a class of very young stars, still in the process of gravitational contraction
The T-Tauri star has a faster spin and a stronger magnetic field than the sun.

The sun was once a T-Tauri star
.
The surface temperature is similar to the sun. Because T-Tauri stars are about the same mass size but is more luminous.
It's surface activity is similar to the sun but the T-Tauri star has more bipolar outflow of hot gas, flares and eruption.
T-Tauri star
Gravitational Collapse is the inward fall of an object by its own object.
T-Tauri stars shine using energy from the collapse in the cloud.

The T-Tauri star is the gravitational collapse where nuclear fusion will occur in the next billion years and the outside is just similar to the sun where flares and solar winds occur.
Protostars are dense regions of molecular clouds where stars are forming.

Its the early stage of formation before it reaches the main sequence stage.The stage starts with a molecular cloud contracting and fragmenting. Fragments then growing, gaining mass and increasing their gravitational attractions resulting in the attraction of other molecules.
A star in the T-Tauri phase can lose up to 50% of its mass before settling down as a main sequence star.
After the T-Tauri phase, they begin as cool stars that later heat up. If less than 0.08 solar masses of a protostar is formed, it is a brown dwarf.
The whole T-Tauri phase lasts about 10 million years
The Protostellar Disk is a gas cloud around a forming star flattened by rotation.
Star Formation: Stars form inside relatively dense concentrations of interstellar gas and dust known as molecular clouds.
Protostars: Dense regions were stars begin to form.
T-Tauri Star: A class of young visible stars
Brown Dwarfs: A star that is smaller than a planet but has a mas equivalent to less than one-tenth of the Sun`s mass.


http://abyss.uoregon.edu/~js/ast122/lectures/lec13.html
Google/Bing for images
Full transcript