DG Tauri B


DG Tauri B
DG Tauri B jets, 1999.
Observation data
Epoch J2000      Equinox J2000
Constellation Taurus
Right ascension 04h 27m 04.691s[1]
Declination +26° 06′ 16.04″[1]
Apparent magnitude (V) 10.50 (A)[2]
Parallax (π)8.2524 ± 0.1461[1] mas
Distance395 ± 7 ly
(121 ± 2 pc)
Other designations
DG Tau, 2MASS J04270469+2606163[3]
Database references

DG Tauri B, near the T Tauri star DG Tauri,[4] is a young stellar object located 450 light-years (140 parsecs) from Earth, within the Taurus constellation.[5] Observations of DG Tauri B were first made in October, and later December 1995 at the 6 element Owens Valley millimeter wave array.[6] Its most notable characteristics are its bipolar jets of molecular gas and dust emanating from either side of the object.[5][6] Red-shifted carbon monoxide emissions extend out 6,000 AU to the northwest of the object from the undetermined source, and are symmetrically distributed about the jet, while blue-shifted CO emissions are confined to a region with a roughly 500 AU radius.[6]


  1. ^ a b c Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051.
  2. ^ Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
  3. ^ "V* DG Tau". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 29 September 2018.
  4. ^ Varga, J; Gabányi, K. É; Ábrahám, P; Chen, L; Kóspál, Á; Menu, J; Ratzka, Th; Van Boekel, R; Dullemond, C. P; Henning, Th; Jaffe, W; Juhász, A; Moór, A; Mosoni, L; Sipos, N (2017). "Mid-infrared interferometric variability of DG Tauri: Implications for the inner-disk structure". Astronomy & Astrophysics. 604: A84. arXiv:1704.05675. doi:10.1051/0004-6361/201630287. S2CID 119475529.
  5. ^ a b information@eso.org. "Disk Around Young Star. A View of DG Tauri B". www.spacetelescope.org.
  6. ^ a b c Mitchell, George F; Sargent, Anneila I; Mannings, Vincent (1997). "DG Tauri B: The Interaction of an Atomic Jet with Ambient Molecular Gas". The Astrophysical Journal. 483 (2): L127–L130. doi:10.1086/310750.