2013A&A...555A..73K


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.04CEST22:35:09

2013A&A...555A..73K - Astronomy and Astrophysics, volume 555A, 73-73 (2013/7-1)

ALMA detection of the rotating molecular disk wind from the young star HD 163296.

KLAASSEN P.D., JUHASZ A, MATHEWS G.S., MOTTRAM J.C., DE GREGORIO-MONSALVO I., VAN DISHOECK E.F., TAKAHASHI S., AKIYAMA E., CHAPILLON E., ESPADA D., HALES A., HOGERHEIJDE M.R., RAWLINGS M., SCHMALZL M. and TESTI L.

Abstract (from CDS):

Disk winds have been postulated as a mechanism for angular momentum release in protostellar systems for decades. HD 163296 is a Herbig Ae star surrounded by a disk and has been shown to host a series of HH knots (HH 409) with bow shocks associated with the farthest knots. Here we present ALMA science verification data of CO J=2-1 and J=3-2 emission, which are spatially coincident with the blue shifted jet of HH knots, and offset from the disk by -18.6km/s. The emission has a double corkscrew morphology and extends more than 10'' from the disk with embedded emission clumps coincident with jet knots. We interpret this double corkscrew as emission from material in a molecular disk wind, and that the compact emission near the jet knots is being heated by the jet that is moving at much higher velocities. We show that the J=3-2 emission is likely heavily filtered by the interferometer, but the J=2-1 emission suffers less due to the larger beam and sensitivity to larger scale structures. Excitation analysis suggests temperatures exceeding 900K in these compact features, with the wind mass, momentum and energy being of order 10–5M, 10–4Mkm/s and 1040erg, respectively. The high mass loss rate suggests that this star is dispersing the disk faster than it is funneling mass onto the star.

Abstract Copyright:

Journal keyword(s): stars: pre-main sequence - ISM: jets and outflows - ISM: kinematics and dynamics - stars: individual: HD 163296

CDS comments: Fig.2 knots not in Simbad.

Simbad objects: 5

goto Full paper

goto View the reference in ADS

Number of rows : 5

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 V* DG Tau Or* 04 27 04.6913654419 +26 06 16.041555299 13.57 13.97 10.50 12.28   K6Ve 923 1
2 V* TW Hya TT* 11 01 51.9054298616 -34 42 17.031550898   11.94 10.50 10.626 9.18 K6Ve 1534 1
3 QSO B1730-130 QSO 17 33 02.70578476 -13 04 49.5481484   18 18.5 18.78 17.39 ~ 984 1
4 HD 163296 Ae* 17 56 21.2882188601 -21 57 21.872343282 7.00 6.93 6.85 6.86 6.67 A1Vep 804 0
5 QSO B1921-293 BLL 19 24 51.05595514 -29 14 30.1210524   18.71 18.21 15.07   ~ 690 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2013A&A...555A..73K and select 'bookmark this link' or equivalent in the popup menu


2020.08.04-22:35:09

© Université de Strasbourg/CNRS

    • Contact