2007A&A...467.1197M


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET10:36:21

2007A&A...467.1197M - Astronomy and Astrophysics, volume 467, 1197-1207 (2007/6-1)

Proper motion studies of outflows from Classical T Tauri stars.

McGROARTY F., RAY T.P. and FROEBRICH D.

Abstract (from CDS):

In a previous paper (McGroarty & Ray 2004) we examined the environment of a number of evolved low-mass young stars, i.e. Classical T Tauri Stars, to see if they are capable of driving parsec-scale outflows. These stars - CW Tau, DG Tau, DO Tau, HV Tau C and RW Aur - were previously known to drive only ``micro-jets'' or small-scale outflows of ≤1' or 0.04pc at the distance of the Taurus-Auriga Cloud. We found that they drive outflows of 0.5pc-1pc, based on the morphology and alignment of newly discovered and previously known HH objects with these sources and their ``micro-jets''. Here, we use a cross-correlation method to determine the proper motions of the HH objects in these five outflows (HH 220, HH 229, HH 702, HH 705 and HH 826 - HH 835) which in turn allows us to confirm their driving sources. Moreover, the tangential velocities of HH objects at large distances from their origin are currently poorly known so these proper motions will allow us to determine how velocities evolve with distance from their source. We find tangential velocities of typically 200km/s for the more distant objects in these outflows. Surprisingly, we find similar tangential velocities for the ``micro-jets'' that are currently being ejected from these sources. This leads us to suggest that either the outflow velocity was much higher 103years ago when the more distant objects were ejected and that these objects have decelerated to their current velocity or that the outflow velocity at the source has remained approximately constant and the more distant objects have not undergone significant deceleration due to interactions with the ambient medium. Numerical simulations are needed before we can decide between these scenarios.

Abstract Copyright:

Journal keyword(s): ISM: Herbig-Haro objects - ISM: jets and outflows - stars: pre-main sequence - stars: formation - stars: general

Simbad objects: 75

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Number of rows : 75

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HH 335 HH 03 29 17.7 +31 23 03           ~ 9 0
2 IRAS 04108+2803 mul 04 13 54.9 +28 11 31           ~ 89 1
3 HH 829A HH 04 14 03.0 +28 25 36           ~ 3 0
4 HH 829B HH 04 14 04.8 +28 26 53           ~ 3 0
5 HH 829C HH 04 14 07.3 +28 27 37           ~ 2 0
6 HH 828 HH 04 14 10.3 +28 14 54           ~ 4 0
7 HD 283447 Or* 04 14 12.9232870093 +28 12 12.378540314 13.17 12.07 10.68 9.45 8.67 K3Ve 383 0
8 V* FN Tau Or* 04 14 14.5943659839 +28 27 58.063377983     14.70 13.68   M5 142 0
9 HH 827 HH 04 14 15.1 +28 03 55           ~ 4 0
10 HH 826C HH 04 14 15.3 +28 11 39           ~ 4 0
11 V* CW Tau Or* 04 14 17.0041128798 +28 10 57.765657757 13.92 13.64 12.36 12.86   K0Ve 319 0
12 HH 826A HH 04 14 17.8 +28 10 40           ~ 4 0
13 HH 826B HH 04 14 19.8 +28 09 52           ~ 4 0
14 IRAS 04113+2758 ** 04 14 26.31 +28 06 04.5           ~ 58 0
15 V* FS Tau Or* 04 22 02.1925017485 +26 57 30.331063489 17.57   14.10 15.63   M3.5e+M0e 261 0
16 HH 702C HH 04 26 34.10 +25 57 40.3           ~ 3 0
17 HH 702D HH 04 26 34.1457859034 +25 57 23.357112311           ~ 3 0
18 HH 702B HH 04 26 34.32 +25 57 39.7           ~ 3 0
19 HH 702A HH 04 26 35.6278577396 +25 57 53.719025687           ~ 7 0
20 IRAS 04236+2559 FIR 04 26 52.8 +26 07 04           ~ 7 0
21 HH 159 HH 04 27 02.0 +26 05 42           ~ 13 0
22 2MASS J04270266+2605304 Y*O 04 27 02.66593 +26 05 30.3790           ~ 135 0
23 V* DG Tau Or* 04 27 04.6913654419 +26 06 16.041555299 13.57 13.97 10.50 12.28   K6Ve 940 1
24 IRAS 04244+2557 FIR 04 27 30.6 +26 04 09           ~ 3 0
25 HH 830A HH 04 27 37.3 +26 12 27           ~ 3 0
26 HH 830B HH 04 27 44.8 +26 12 56           ~ 2 0
27 HH 830C HH 04 27 51.7 +26 15 33           ~ 2 0
28 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1232 0
29 V* DO Tau Or* 04 38 28.5882167490 +26 10 49.472067634 12.78 13.44 12.30 13.01   M1Ve 323 1
30 V* HV Tau Or* 04 38 35.2903493114 +26 10 38.646251388           M1Ve 117 0
31 V* HV Tau C TT* 04 38 35.5121708248 +26 10 41.334466864         14.90 K6 87 0
32 HH 833 HH 04 38 44.0 +26 14 42           ~ 2 0
33 IRAS 04358+2618 IR 04 38 55.9 +26 24 40           ~ 1 0
34 [ARC92] LDN 1527 1 Rad 04 39 01.29 +26 17 03.1           ~ 3 0
35 HH 832 HH 04 39 02.0 +26 12 21           ~ 2 0
36 HH 834 HH 04 39 05.9 +26 03 23           ~ 2 0
37 HH 705 HH 04 39 06.72 +26 20 29.9           ~ 4 0
38 [ARC92] LDN 1527 2 Rad 04 39 09.58 +26 15 32.5           ~ 3 0
39 HH 831A HH 04 39 13.2 +26 13 48           ~ 2 0
40 HH 831B HH 04 39 15.2 +26 13 55           ~ 3 0
41 ITG 14 Y*O 04 39 37.1605202250 +26 13 15.060427112           ~ 2 0
42 HH 192C HH 04 39 37.2 +26 03 32           ~ 2 0
43 Kim 1-38 * 04 39 38.8673861844 +26 11 26.630421918           K1III 125 0
44 IRAS F04366+2555 TT* 04 39 44.8805264309 +26 01 52.708767835           M5 28 0
45 IRAS 04368+2557 Y*O 04 39 53.97816 +26 03 09.6804           ~ 240 0
46 HH 192A HH 04 40 01.2 +26 03 13           ~ 2 0
47 HH 192B HH 04 40 07.0 +26 03 08           ~ 2 0
48 IRAS 04370+2559 Y*O 04 40 08.0044564423 +26 05 25.424058995           M 48 0
49 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3572 0
50 HH 835 HH 05 07 30.4 +30 27 11           ~ 3 0
51 V* RW Aur TT* 05 07 49.5662483 +30 24 05.177426   10.86 9.60 9.95   K1/5e+K5e 722 0
52 HH 34 HH 05 35 31.30 -06 28 43.0     16     ~ 469 2
53 HH 229G HH ~ ~           ~ 1 0
54 HH 220NW HH ~ ~           ~ 1 0
55 HH 835W HH ~ ~           ~ 1 0
56 HH 831A3 HH ~ ~           ~ 1 0
57 HH 229B HH ~ ~           ~ 1 0
58 HH 831A5 HH ~ ~           ~ 1 0
59 HH 835M HH ~ ~           ~ 1 0
60 HH 831A4 HH ~ ~           ~ 1 0
61 HH 229C HH ~ ~           ~ 1 0
62 HH 831B2 HH ~ ~           ~ 1 0
63 HH 835E HH ~ ~           ~ 1 0
64 HH 702E HH ~ ~           ~ 2 0
65 HH 831A1 HH ~ ~           ~ 1 0
66 HH 705A2 HH ~ ~           ~ 1 0
67 HH 229D HH ~ ~           ~ 1 0
68 HH 705A3 HH ~ ~           ~ 1 0
69 HH 831B1 HH ~ ~           ~ 1 0
70 HH 705A4 HH ~ ~           ~ 1 0
71 HH 831A2 HH ~ ~           ~ 1 0
72 HH 705A1 HH ~ ~           ~ 1 0
73 HH 828M HH ~ ~           ~ 1 0
74 HH 828W HH ~ ~           ~ 1 0
75 HH 828E HH ~ ~           ~ 1 0

    Equat.    Gal    SGal    Ecl

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2020.11.25-10:36:21

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