IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Jet-induced star formation by a microquasar
Autor/es:
MIRABEL IF; RODRIGUEZ, L. F.; CHATY S.; SAUVAGE, M.
Lugar:
Galapagos
Reunión:
Simposio; 'Extragalactic jets from every angle'; 2014
Institución organizadora:
International Astronomical Union
Resumen:
Theoretical and observational work show that jets from AGN can trigger star forma-
tion. However, in the Milky Way the rst -and so far- only clear case of relativistic jets inducing
star formation has been found in the surroundings of the microquasar GRS 1915+105. Here
we summarize the multiwavelength observations of two compact star formation IRAS sources
axisymmetrically located and aligned with the position angle of the sub-arcsec relativistic jets
from the stellar black hole binary GRS 1915+105 (Mirabel & Rodrguez 1994). The observa-
tions of these two star forming regions at centimeter (Rodrguez & Mirabel 1998), millimeter
and infrared (Chaty et al. 2001) wavelengths had suggested -despite the large uncertainties in
the distances a decade ago- that the jets from GRS 1915+105 are triggering along the radio jet
axis the formation of massive stars in a radio lobe of bow shock structure. Recently, Reid et al.
(2014) found that the jet source and the IRAS sources are at the same distance, enhancing the
evidence for the physical association between the jets from GRS 1915+105 and star formation
in the IRAS sources. We conclude that as jets from AGN, jets from microquasars can trigger the
formation of massive stars, but at distances of a few tens of parsecs. Although star formation
induced by microquasar jets may not be statistically signicant in the Milky Way, jets from
stellar black holes may have been important to trigger star formation during the re-ionization
epoch of the universe (Mirabel et al. 2011). Because of the relative proximity of GRS 1915+105
and the associated star forming regions, they may serve as a nearby laboratory to gain insight
into the physics of jet-trigger star formation elsewhere in the universe.