Taurus molecular cloud

Coordinates: Sky map 04h 41m 00s, +25° 52′ 00″
Source: Wikipedia, the free encyclopedia.
"TMC-1" redirects here. For the gene, see TMC1.
Taurus molecular cloud
J2000.0[1] epoch
Right ascension04h 41.0m [1]
Declination+25° 52′ [1]
ConstellationTaurus
DesignationsHCL 2, Heiles's cloud 2, TMC-1, Taurus molecular cloud 1[1]
See also: Lists of nebulae
This video begins with a wide-field view of the sky, before zooming into the Taurus molecular cloud region, about 450 light-years from Earth. Dark clouds of cosmic dust grains obscure the background stars at visible wavelengths. The submillimetre-wavelength observations from the LABOCA camera on APEX reveal the heat glow of the dust grains, shown here in orange tones. The observations cover two regions in the cloud, which are known as Barnard 211 and Barnard 213. In them, newborn stars are hidden, and dense clouds of gas are on the verge of collapsing to form yet more stars.
This video pans over part of the Taurus molecular cloud region.

The Taurus molecular cloud (TMC-1) is an interstellar

ly) away from Earth, making it possibly the nearest large star formation region. It has been important in star formation studies at all wavelengths.[3]

It is notable for containing many complex molecules, such as cyanopolyynes HCnN for n = 3,5,7,9,[4] and cumulene carbenes H2Cn for n = 3–6.[5]

The Taurus molecular cloud was identified in the past as a part of the Gould Belt, a large structure surrounding the solar system. More recently (January 2020) the Taurus molecular cloud was identified as being part of the much larger Radcliffe wave, a wave-shaped structure in the local arm of the Milky Way.

The newly formed stars in this cloud have an age of 1–2 million years.

direct imaging of young exoplanets, which glow brightly in infrared
wavelengths.

Members[7][8] of the Taurus–Auriga association with a circumstellar disk or exoplanet:

  • HL Tauri – directly imaged disk with impressive details
  • SU Aurigae – circumstellar disk
  • AB Aurigae – circumstellar disk and hints of an exoplanet
  • CI Tauri – directly imaged circumstellar disk, one confirmed exoplanet and hints of additional exoplanets
  • V830 Tauri b
  • LkCa 15 b
  • GG Tauri – circumstellar disk
  • UX Tauri – circumstellar disk
  • DH Tauri b
  • DG Tauri B – circumstellar disk associated with jets
  • 2M0437b – directly imaged exoplanet
  • V1298 Tauri – four confirmed transiting exoplanets[9][10]
Main dark nebulae of the Solar apex half of the galactic plane, with the Taurus molecular cloud at the left edge.

See also

References

  1. ^ a b c d "TMC-1 – Molecular Cloud". SIMBAD. Retrieved 2014-03-14.
  2. S2CID 119189843
    .
  3. S2CID 8846597
    .
  4. S2CID 26107828
    .
  5. PMID 34334798
    .
  6. ISSN 0067-0049
    .
  7. ^
    ISSN 0004-637X
    .
  8. S2CID 118525138
    .
  9. ^ "V1298 Tau". exoplanetarchive.ipac.caltech.edu. Retrieved 2020-02-21.
  10. S2CID 204008446
    .


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