Optical outflows in the R Coronae Australis molecular cloud

Hongchi Wang, Reinhard Mundt, Thomas Henning, Daniel Apai

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

A deep [S II] λλ6717/6731 wide-field survey of Herbig-Haro (HH) objects has been carried out in two fields toward the R CrA molecular cloud using the ESO/MPG 2.2m Wide Field Imager. Twelve new HH objects, many of which consist of several condensations or knots, have been discovered, and new details of the known HH objects have been revealed. Combining the results of previous optical, infrared, and millimeter-wavelength observations, the possible exciting sources of HH objects in the region are discussed. On the basis of the previously known and newly discovered HH objects, at least five HH flows in the region around R CrA and at least two outflows in the region around VV CrA can be identified. In combination with the previously detected molecular outflows, the HH flows in the R CrA region indicate rather active star formation in the R CrA core in the past 105-106 yr.

Original languageEnglish (US)
Pages (from-to)1191-1203
Number of pages13
JournalAstrophysical Journal
Volume617
Issue number2 I
DOIs
StatePublished - Dec 20 2004
Externally publishedYes

Fingerprint

Herbig-Haro objects
molecular clouds
coronas
corona
outflow
field survey
condensation
European Southern Observatory
star formation
wavelength
wavelengths

Keywords

  • ISM: Herbig-Haro objects
  • ISM: individual (R Coronae Australis IRS 7)
  • ISM: jets and outflows
  • Stars: formation

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Optical outflows in the R Coronae Australis molecular cloud. / Wang, Hongchi; Mundt, Reinhard; Henning, Thomas; Apai, Daniel.

In: Astrophysical Journal, Vol. 617, No. 2 I, 20.12.2004, p. 1191-1203.

Research output: Contribution to journalArticle

Wang, Hongchi ; Mundt, Reinhard ; Henning, Thomas ; Apai, Daniel. / Optical outflows in the R Coronae Australis molecular cloud. In: Astrophysical Journal. 2004 ; Vol. 617, No. 2 I. pp. 1191-1203.
@article{1be51a5467c84f4589c90764d8ce1e67,
title = "Optical outflows in the R Coronae Australis molecular cloud",
abstract = "A deep [S II] λλ6717/6731 wide-field survey of Herbig-Haro (HH) objects has been carried out in two fields toward the R CrA molecular cloud using the ESO/MPG 2.2m Wide Field Imager. Twelve new HH objects, many of which consist of several condensations or knots, have been discovered, and new details of the known HH objects have been revealed. Combining the results of previous optical, infrared, and millimeter-wavelength observations, the possible exciting sources of HH objects in the region are discussed. On the basis of the previously known and newly discovered HH objects, at least five HH flows in the region around R CrA and at least two outflows in the region around VV CrA can be identified. In combination with the previously detected molecular outflows, the HH flows in the R CrA region indicate rather active star formation in the R CrA core in the past 105-106 yr.",
keywords = "ISM: Herbig-Haro objects, ISM: individual (R Coronae Australis IRS 7), ISM: jets and outflows, Stars: formation",
author = "Hongchi Wang and Reinhard Mundt and Thomas Henning and Daniel Apai",
year = "2004",
month = "12",
day = "20",
doi = "10.1086/425493",
language = "English (US)",
volume = "617",
pages = "1191--1203",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "2 I",

}

TY - JOUR

T1 - Optical outflows in the R Coronae Australis molecular cloud

AU - Wang, Hongchi

AU - Mundt, Reinhard

AU - Henning, Thomas

AU - Apai, Daniel

PY - 2004/12/20

Y1 - 2004/12/20

N2 - A deep [S II] λλ6717/6731 wide-field survey of Herbig-Haro (HH) objects has been carried out in two fields toward the R CrA molecular cloud using the ESO/MPG 2.2m Wide Field Imager. Twelve new HH objects, many of which consist of several condensations or knots, have been discovered, and new details of the known HH objects have been revealed. Combining the results of previous optical, infrared, and millimeter-wavelength observations, the possible exciting sources of HH objects in the region are discussed. On the basis of the previously known and newly discovered HH objects, at least five HH flows in the region around R CrA and at least two outflows in the region around VV CrA can be identified. In combination with the previously detected molecular outflows, the HH flows in the R CrA region indicate rather active star formation in the R CrA core in the past 105-106 yr.

AB - A deep [S II] λλ6717/6731 wide-field survey of Herbig-Haro (HH) objects has been carried out in two fields toward the R CrA molecular cloud using the ESO/MPG 2.2m Wide Field Imager. Twelve new HH objects, many of which consist of several condensations or knots, have been discovered, and new details of the known HH objects have been revealed. Combining the results of previous optical, infrared, and millimeter-wavelength observations, the possible exciting sources of HH objects in the region are discussed. On the basis of the previously known and newly discovered HH objects, at least five HH flows in the region around R CrA and at least two outflows in the region around VV CrA can be identified. In combination with the previously detected molecular outflows, the HH flows in the R CrA region indicate rather active star formation in the R CrA core in the past 105-106 yr.

KW - ISM: Herbig-Haro objects

KW - ISM: individual (R Coronae Australis IRS 7)

KW - ISM: jets and outflows

KW - Stars: formation

UR - http://www.scopus.com/inward/record.url?scp=13944273056&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=13944273056&partnerID=8YFLogxK

U2 - 10.1086/425493

DO - 10.1086/425493

M3 - Article

AN - SCOPUS:13944273056

VL - 617

SP - 1191

EP - 1203

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2 I

ER -