T Tauri star


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T Tauri star

[′tē ′tȯr·ē ‚stär]
(astronomy)
A star, with mass from 0.5 to 2.5 solar masses, in an early stage of formation at which interaction with its associated nebulosity, as well as possible internal instabilities, make it variable in luminosity and render its spectrum very peculiar. Also known as nebular variable.
References in periodicals archive ?
The images of T Tauri star survey will be published in a (http://www.eso.org/public/archives/releases/sciencepapers/eso1811/eso1811a.pdf) paper titled "Disks Around T Tauri Stars With SPHERE (DARTTS-S) I: SPHERE / IRDIS Polarimetric Imaging of 8 Prominent T Tauri Disks" in the Astrophysical Journal. Meanwhile, the discovery of the edge-on disc will be detailed in a (http://www.eso.org/public/archives/releases/sciencepapers/eso1811/eso1811b.pdf) paper titled "A new disk discovered with VLT/SPHERE around the M star GSC 07396-00759" in the journal Astronomy & Astrophysics.
That secondary is a very young T Tauri star about 1.5 times the mass of the Sun.
KH 15D is a T Tauri star, a young, pre-main-sequence star with between 0.5 and 1 solar mass.
The result is a flickering T Tauri star. It is wildly bright in the infrared because of all the surrounding warm dust and in the ultraviolet because of matter crashing onto its surface.
The secondary star seems to be an ordinary, less-massive T Tauri star no more than 300,000 years old.
Our goal is to give closure to the question: how do x-rays impact disk evolution and early planet formationthis project will go beyond the state-of-the-art in two directions: via the laboratory simulation of the x-ray spectrum of t tauri stars, and by pioneering the use of heterogeneous analogs to protoplanetary dust.
Classical T Tauri stars are often surrounded by dust and gas.
T Tauri stars show outbursts of this kind, and so do FU Orionis stars, but FU Orionis spectra show absorption of light by calcium, whereas Object 50 shows emission by calcium.
Newborn Stars "One of the most exciting and controversial papers was 'On the Nature and Origin of the T Tauri Stars,' by G.
Unlike the Orion Nebula, it isn't forming massive stars but contains hosts of low-mass protostars in the process of formation: so-called T Tauri stars. Many are visible through amateur telescopes, but only deep imaging can detect the surrounding dusty disks and the jets that the stars produce as matter from the disks falls onto them.
Most infant stars having roughly the Sun's mass (T Tauri stars) appear to blow away their dusty disks in less than 10 million years and perhaps just 3 million years.
Its spectrum shows anomalously intense blue emission lines of neutral iron at 4046 and 4132 angstroms, as well as other unusual features shared by many young, premain-sequence variables - which have become known as the T Tauri stars.