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Titolo:
Discovery of new embedded Herbig-Haro objects in the rho Ophiuchi dark cloud
Autore:
Grosso, N; Alves, J; Neuhauser, R; Montmerle, T;
Indirizzi:
Max Planck Inst Extraterr Phys, D-85741 Garching, Germany Max Planck Inst Extraterr Phys Garching Germany D-85741 arching, Germany European So Observ, D-85748 Garching, Germany European So Observ Garching Germany D-85748 v, D-85748 Garching, Germany CEA Saclay, Serv Astrophys, F-91191 Gif Sur Yvette, France CEA Saclay GifSur Yvette France F-91191 F-91191 Gif Sur Yvette, France
Titolo Testata:
ASTRONOMY & ASTROPHYSICS
fascicolo: 1, volume: 380, anno: 2001,
pagine: L1 - L4
SICI:
1432-0746(200112)380:1<L1:DONEHO>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
YOUNG STELLAR OBJECTS; STARS; SHOCKS;
Keywords:
open clusters and associations : p Ophiuchi dark cloud; infrared : stars; infrared : ISM; stars : pre-main sequence; Herbig-Haro objects; ISM : jets and outflows;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Grosso, N Max Planck Inst Extraterr Phys, D-85741 Garching, Germany Max Planck Inst Extraterr Phys Garching Germany D-85741 ermany
Citazione:
N. Grosso et al., "Discovery of new embedded Herbig-Haro objects in the rho Ophiuchi dark cloud", ASTRON ASTR, 380(1), 2001, pp. L1-L4

Abstract

We report here the discovery of a 30 " -chain of embedded Herbig-Haro (HH)objects in the rho Ophiuchi dark cloud. These HH objects were first detected during a deep K-S-band observation (completeness magnitude for point source similar to 19) made with NTT/SOFI. We confirm their nature with follow-up observations made with H-2 v = 1-0 S(1) narrow-band filter. We argue that they belong to two different jets emanating from two Class I protostars: the main component of the recently resolved subarcsecond radio binary YLW15(also called IRS43), and IRS54. We propose also to identify the [S II] knot HH224NW1 (Gomez et al. 1998) as emanating from a counterjet of YLW15. Thealignment between these HH objects and the thermal jet candidate found in YLW15 by Girart et al. (2000) implies that this jet is not precessing at least on timescale similar to (2-4) x 10(4) yr.

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Documento generato il 28/03/20 alle ore 22:41:07