2009A&A...498..761L


C.D.S. - SIMBAD4 rel 1.7 - 2020.03.30CEST16:35:14

2009A&A...498..761L - Astronomy and Astrophysics, volume 498, 761-769 (2009/5-2)

The nature of HH 223 from long-slit spectroscopy.

LOPEZ R., ESTALELLA R., GOMEZ G., RIERA A. and CARRASCO-GONZALEZ C.

Abstract (from CDS):

HH 223 is a knotty, undulating nebular emission of ∼30" length found in the L723 star-forming region. It lies projected onto the largest blueshifted lobe of the quadrupolar CO outflow powered by a low-mass YSO system embedded in the core of L723. We analysed the physical conditions and kinematics along HH 223 with the aim of disentangling whether the emission arises from shock-excited, supersonic gas characteristic of a stellar jet, or is only tracing the wall cavity excavated by the CO outflow. We performed long-slit optical spectroscopy along HH 223, crossing all the bright knots (A to E) and part of the low-brightness emission nebula (F filament). One spectrum of each knot, suitable to characterize the nature of its emission, was obtained. The physical conditions and the radial velocity of the HH 223 emission along the slits were also sampled at smaller scale (0.6") than the knot sizes. The spectra of all the HH 223 knots appear like those of intermediate/high excitation Herbig-Haro objects. The emission is supersonic, with blueshifted peak velocities ranging from -60 to -130km/s. Reliable variations in the kinematics and physical conditions at smaller scales that the knot sizes are also found. The properties of the HH 223 emission derived from the spectroscopy confirm the HH nature of the object; the supersonic optical outflow most probably is also being powered by the YSOs embedded in the L723 core.

Abstract Copyright:

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

Status at CDS:  

CDS comments: In reflist, Palacio J. 1999 is a misprint for Palacio 1999, A&A, 346, 233.

Simbad objects: 22

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Number of rows : 22

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 HH 110 HH 05 51 24.9 +02 54 52           ~ 84 0
2 [LEG2006] HH 223-NW2 ISM 19 17 46.8 +19 13 12           ~ 4 0
3 [LEG2006] HH 223-NW1 ISM 19 17 47.3 +19 13 01           ~ 4 0
4 NAME LDN 723 VLA 2 Rad 19 17 53.67 +19 12 19.5           ~ 26 0
5 [CAR2008] VLA 2A Rad 19 17 53.673 +19 12 19.59           ~ 7 0
6 [PE99] K1 ISM 19 17 54.2 +19 12 19           ~ 5 0
7 [PE99] K2 ISM 19 17 54.3 +19 12 15           ~ 5 0
8 HH 223F3 HH 19 17 56.56 +19 11 52.9           ~ 3 0
9 HH 223F1 HH 19 17 56.66 +19 11 50.9           ~ 4 0
10 HH 223F HH 19 17 56.66 +19 11 50.9           ~ 4 0
11 HH 223E HH 19 17 57.03 +19 11 52.1           ~ 5 0
12 HH 223D HH 19 17 57.30 +19 11 53.0           ~ 4 0
13 HH 223 HH 19 17 57.4 +19 11 53           ~ 9 0
14 HH 223C HH 19 17 57.43 +19 11 53.3           ~ 5 0
15 HH 223B HH 19 17 57.72 +19 11 50.1           ~ 4 0
16 HH 223A2 HH 19 17 57.97 +19 11 50.7           ~ 1 0
17 HH 223A1 HH 19 17 57.97 +19 11 50.7           ~ 1 0
18 HH 223A HH 19 17 57.97 +19 11 50.7           ~ 5 0
19 [LEG2006] HH 223-SE2 ISM 19 18 04.3 +19 11 16           ~ 3 0
20 [LEG2006] HH 223-SE1 ISM 19 18 06.1 +19 11 21           ~ 3 0
21 LDN 723 DNe 19 18 12 +19 13.6           ~ 153 0
22 HH 119 HH 19 36 51.5 +07 34 10           ~ 14 0

    Equat.    Gal    SGal    Ecl

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2020.03.30-16:35:14

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