IS SVS-13 THE EXCITING SOURCE OF THE HH-7-11 FLOW

Citation
Lf. Rodriguez et al., IS SVS-13 THE EXCITING SOURCE OF THE HH-7-11 FLOW, The Astrophysical journal, 480(2), 1997, pp. 125-128
Citations number
31
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
0004637X
Volume
480
Issue
2
Year of publication
1997
Part
2
Pages
125 - 128
Database
ISI
SICI code
0004-637X(1997)480:2<125:ISTESO>2.0.ZU;2-P
Abstract
Since 1976 it has been believed that the Herbig-Haro (HH) objects 7-11 are excited by SVS 13, an infrared source located approximately along the line defined by this chain of nebulosities. It is well establishe d that the exciting sources of HH flows are frequently detected in the centimeter continuum. When observed with high angular resolution, the se radio sources appear as subarcsecond thermal jets that are elongate d in the direction of the outflow axis. We present sensitive, high ang ular resolution VLA observations of the region that show radio continu um emission associated with SVS 13 but also reveal at about 6'' to its southwest the presence of a second radio source previously undetected at other wavelengths. This source is better aligned with the axis def ined by the HH 7-11 outflow and also exhibits an elongation along this axis. We favor this new object as the most likely exciting source of this classic HH system. However, high angular resolution molecular obs ervations of the region are required to test this proposition.