We study the mechanism causing the X-ray emission recently detected in protostellar jets, by performing a detailed modeling of the interaction between a supersonic jet originating from a young stellar object and the ambient medium, for various values of density contrast, ν, between the ambient density and the jet, and of Mach number, M; radiative losses and thermal conduction have been taken into account. Here we report a representative case which reproduces, without any ad hoc assumption, the characteristics of the X-ray emission recently observed in the protostellar jet HH 154. We find that the X-ray emission originates from a localized blob, consistent with observations, which moves with velocity v ˜ 500 km s-1; we therefore predict the X-ray source to have a detectable proper motion.

BONITO, R, ORLANDO, S, PERES G, FAVATA, et al. (2004). The X-ray emission mechanism in the protostellar jet HH 154. ASTRONOMY & ASTROPHYSICS, 424, L1-L4 [10.1051/0004-6361:200400014].

The X-ray emission mechanism in the protostellar jet HH 154

PERES, Giovanni;BONITO, Rosaria
2004-01-01

Abstract

We study the mechanism causing the X-ray emission recently detected in protostellar jets, by performing a detailed modeling of the interaction between a supersonic jet originating from a young stellar object and the ambient medium, for various values of density contrast, ν, between the ambient density and the jet, and of Mach number, M; radiative losses and thermal conduction have been taken into account. Here we report a representative case which reproduces, without any ad hoc assumption, the characteristics of the X-ray emission recently observed in the protostellar jet HH 154. We find that the X-ray emission originates from a localized blob, consistent with observations, which moves with velocity v ˜ 500 km s-1; we therefore predict the X-ray source to have a detectable proper motion.
2004
BONITO, R, ORLANDO, S, PERES G, FAVATA, et al. (2004). The X-ray emission mechanism in the protostellar jet HH 154. ASTRONOMY & ASTROPHYSICS, 424, L1-L4 [10.1051/0004-6361:200400014].
File in questo prodotto:
File Dimensione Formato  
bonito.pdf

Solo gestori archvio

Dimensione 198.34 kB
Formato Adobe PDF
198.34 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
bonito.pdf

Solo gestori archvio

Dimensione 198.34 kB
Formato Adobe PDF
198.34 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/1469
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 24
  • ???jsp.display-item.citation.isi??? 21
social impact