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LONG-SLIT SPECTROSCOPY OF PARSEC-SCALE JETS FROM DG TAURI
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 Title & Authors
LONG-SLIT SPECTROSCOPY OF PARSEC-SCALE JETS FROM DG TAURI
Oh, Heeyoung; Pyo, Tae-Soo; Yuk, In-Soo; Park, Byeong-Gon;
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 Abstract
We present observational results from optical long-slit spectroscopy of parsec-scale jets of DG Tau. From HH 158 and HH 702, the optical emission lines of Hα, [O i] λλ6300, 6363, [N ii] λλ6548, 6584, and [S ii] λλ6716, 6731 are obtained. The kinematics and physical properties (i.e., electron density, electron temperature, ionization fraction, and mass-loss rate) are investigated along the blueshifted jet up to 650′′ distance from the source. For HH 158, the radial velocity ranges from −50 to −250 km s−1. The proper motion of the knots is 0.′′196 − 0.′′272 yr−1. The electron density is ∼104 cm−3 close to the star, and decreases to ∼102 cm−3 at 14′′ away from the star. Ionization fraction indicates that the gas is almost neutral in the vicinity of the source. It increases up to over 0.4 along the distance. HH 702 is located at 650′′ from the source. It shows ∼ −80 km s−1 in the radial velocity. Its line ratios are similar to those at knot C of HH 158. The mass-loss rate is estimated to be about ∼ 10−7 M yr−1, which is similar to values obtained from previous studies.
 Keywords
stars: formation;stars: outflows;Herbig-Haro obejcts;stars: individual: DG Tau;techniques: spectroscopy;
 Language
English
 Cited by
1.
Protostars: Forges of cosmic rays?, Astronomy & Astrophysics, 2016, 590, A8  crossref(new windwow)
 References
1.
Agra-Amboage, V. 2009, Observations of the Inner Regions of Winds around Young T Tauri Type Stars, Ph.D. Thesis., Joseph Fourier University

2.
Agra-Amboage, V., Dougados, C., Cabrit, S., & Reunanen, J. 2011, Sub-Arcsecond [Fe II] Spectro-Imaging of the DG Tauri Jet. Periodic Bubbles and a Dusty Disk Wind?, A&A, 532, A59

3.
Bacciotti, F., Chiuderi, C., & Oliva, E. 1995, The Structure of Optical Stellar Jets: a Phenomenological Analysis., A&A, 296, 185

4.
Bacciotti, F., & Eislöffel, J. 1999, Ionization and Density along the Beams of Herbig-Haro Jets, A&A, 342, 717

5.
Bacciotti, F., Mundt, R., Ray, T. P., et al. 2000, Hubble Space Telescope STIS Spectroscopy of the Optical Outflow from DG Tauri: Structure and Kinematics on Sub-arcsecond Scales, ApJ, 537, L49 crossref(new window)

6.
Bacciotti, F., Ray, T. P., Mundt, R., Eislöffel, J., & Solf, J. 2002, Hubble Space Telescope/STIS Spectroscopy of the Optical Outflow from DG Tauri: Indications for Rotation in the Initial Jet Channel, ApJ, 576, 222 crossref(new window)

7.
Bally, J., & Devine, D. 1994, A Parsec-Scale ‘Superjet’ and Quasi-Periodic Structure in the HH 34 Outflow?, ApJ, 428, L65 crossref(new window)

8.
Bally, J., Devine, D., Fesen, R. A., & Lane, A. P. 1995, Twin Herbig-Haro Jets and Molecular Outflows in L1228, ApJ, 454, 345 crossref(new window)

9.
Beck, T. L., Bary, J. S., & McGregor, P. J. 2010, Spatially Extended Brackett Gamma Emission in the Environments of Young Stars, ApJ, 722, 1360 crossref(new window)

10.
Beckwith, S. V. W., Sargent, A. I., Chini, R. S., & Guesten, R. 1990, A Survey for Circumstellar Disks around Young Stellar Objects, AJ, 99, 924 crossref(new window)

11.
Dougados, C., Cabrit, S., Lavalley, C., & Ménard, F. 2000, T Tauri Stars Microjets Resolved by Adaptive Optics, A&A, 357, L61

12.
Eislöffel, J., & Mundt, R. 1998, Imaging and Kinematic Studies of Young Stellar Object Jets in Taurus, AJ, 115, 1554 crossref(new window)

13.
Hamann, F. 1994, Emission-Line studies of young stars. 4: The optical Forbidden Lines, ApJS, 93, 485 crossref(new window)

14.
Hartigan, P., Morse, J. A., & Raymond, J. 1994, Mass-Loss Rates, Ionization Fractions, Shock Velocities, and Magnetic Fields of Stellar Jets, ApJ, 436, 125 crossref(new window)

15.
Hartigan, P., Edwards, S., & Ghandour, L. 1995, Disk Accretion and Mass Loss from Young Stars, ApJ, 452, 736 crossref(new window)

16.
Hartigan, P. 2003, Shock Waves in Outflows from Young Stars, Ap&SS, 287, 111 crossref(new window)

17.
Hartmann, L., & Raymond, J. C. 1989, Wind-Disk Shocks around T Tauri Stars, ApJ, 337, 903 crossref(new window)

18.
Hirth, G. A., Mundt, R., & Solf, J. 1997, Spatial and kinematic Properties of the Forbidden Emission Line Region of T Tauri Stars, A&AS, 126, 437

19.
Kwan, J., & Tademaru, E. 1995, Disk Winds from T Tauri Stars, ApJ, 454, 382 crossref(new window)

20.
Lavalley, C., Cabrit, S., Dougados, C., Ferruit, P., & Bacon, R. 1997, Sub-Arcsecond Morphology and Kinematics of the DG Tauri Jet in the [O I]λ6300 Line, A&A, 327, 671

21.
Lavalley-Fouquet, C., Cabrit, S., & Dougados, C. 2000, DG Tau: A Shocking Jet, A&A, 356, L41

22.
Lynch, C., Mutel, R. L., Güdel, M., et al. 2013, Very Large Array Observations of DG Tau’s Radio Jet: A Highly Collimated Thermal Outflow, ApJ, 766, 53 crossref(new window)

23.
Maurri, L., Bacciotti, F., Podio, L., et al. 2014, Physical Properties of the Jet from DG Tauri on Sub-Arcsecond Scales with HST/STIS, A&A, 565, A110

24.
McGroarty, F., & Ray, T. P. 2004, Classical T Tauri Stars as Sources of Parsec-Scale Optical Outflows, A&A, 420, 975

25.
McGroarty, F., Ray, T. P., & Froebrich, D. 2007, Proper Motion Studies of Outflows from Classical T Tauri Stars, A&A, 467, 1197

26.
Mundt, R., Brugel, E. W., & Bührke, T. 1987, Jets from Young Stars - CCD Imaging, Long-Slit Spectroscopy, and Interpretation of Existing Data, ApJ, 319, 275 crossref(new window)

27.
Mundt, R., & Fried, J. W. 1983, Jets from Young Stars, ApJ, 274, L83 crossref(new window)

28.
Ogura, K. 1995, Giant Bow Shock Pairs Associated with Herbig-Haro Jets, ApJ, 450, L23

29.
Osterbrock, D. E. 1989, Astrophysics of Gaseous Nebulae and Active Galactic Nuclei, (Mill Valley, CA: University Science Books)

30.
Pyo, T.-S., Hayashi, M., Kobayashi, N., et al. 2002, Velocity-Resolved [Fe II] Line Spectroscopy of L1551 IRS 5: A Partially Ionized Wind under Collimation around an Ionized Fast Jet, ApJ, 570, 724 crossref(new window)

31.
Pyo, T.-S., Hayashi, M., Kobayashi, N., et al. 2006, Adaptive Optics Spectroscopy of the [Fe II] Outflows from HL Tauri and RW Aurigae, ApJ, 649, 836 crossref(new window)

32.
Pyo, T.-S., Kobayashi, N., Hayashi, M., et al. 2003, Adaptive Optics Spectroscopy of the [Fe II] Outflow from DG Tauri, ApJ, 590, 340 crossref(new window)

33.
Ray, T. P. 1987, CCD Observations of Jets from Young Stars, A&A, 171, 145

34.
Raga, A. C., Binette, L., Canto, J., & Calvet, N. 1990, Stellar Jets with Intrinsically Variable Sources, ApJ, 364, 601 crossref(new window)

35.
Raga, A., Cabrit, S., Dougados, C., & Lavalley, C. 2001, A Precessing, Variable Velocity Jet Model for DG Tauri, A&A, 367, 959

36.
Raga, A. C., & Kofman, L. 1992, Knots in Stellar Jets from Time-Dependent Sources, ApJ, 386, 222 crossref(new window)

37.
Reipurth, B., Bally, J., Aspin, C., et al. 2013, HH 222: A Giant Herbig-Haro Flow from the Quadruple System V380 Ori, AJ, 146, 118 crossref(new window)

38.
Rodríguez, L. F., González, R. F., Raga, A. C., et al. 2012, Radio Continuum Emission from Knots in the DG Tauri Jet, A&A, 537, A123

39.
Solf, J., & Böhm, K. H. 1993, High-Resolution Long-Slit Spectral Imaging of the Mass Outflows in the Immediate Vicinity of DG Tauri, ApJ, 410, L31 crossref(new window)

40.
Sun, K.-F., Yang, J., Luo, S.-G., et al. 2003, Large-Scale Distribution of Herbig-Haro Objects in Taurus, ChJAA, 3, 458

41.
Whelan, E. T., Ray, T. P., & Davis, C. J. 2004, Paschen β Emission as a Tracer of Outflow Activity from T-Tauri Stars, as Compared to Optical Forbidden Emission, A&A, 417, 247