L1448-MM: water in space

posted by @ulaulaman about #Astronomy:
One of the most interesting research topics is the star formation. The high weigth chemistry elements could diffusein the universe only with the life cycle of the stars: the birth, the syntesis of helium and of the other elements, the great explosion that (diffusero) in space carbon, iron and so on. But also the early stages in star formation could send in cosmic vacuum some light elements like hydrogen, or also water!
One place in which it can observe not only star formation but also water jets is the L1448 dark cloud in Perseus molecular cloud
In particular there is an interesting object, L1448-MM that presents two bright spots of emission, the cross (A) and the star (B) in the following figure
This two particular emission points are subject of the research published in 2010 in which researchers find traces of water in the protostar studied
Now a new research (2011) seems to try the prove that these are water jets:
The observations data are obtained within the "Water in star-forming regions with Herschel" (WISH) programme, using Herschel/HIFI spectroscopy.
Tobin J.J., Looney L.W., Mundy L.G., Kwon W. & Hamidouche M. (2007). Imaging Scattered Light from the Youngest Protostars in L1448: Signatures of Outflows, The Astrophysical Journal, 659 (2) 1404-1419. DOI:
Codella C., Ceccarelli C., Nisini B., Bachiller R., Cernicharo J., Gueth F., Fuente A. & Lefloch B. (2010). Heavy water around the L1448-mm protostar, Astronomy & Astrophysics, 522 L1. DOI:
Kristensen L.E., van Dishoeck E.F., Tafalla M., Bachiller R., Nisini B., Liseau R. & Yıldız U.A. (2011). Water in low-mass star-forming regions with (WISH-LM), Astronomy & Astrophysics, 531 L1. DOI:
L. E. Kristensen, E. F. van Dishoeck, M. Tafalla, R. Bachiller, B. Nisini, R. Liseau & U. A. Yildiz (2011). Water in low-mass star-forming regions with Herschel (WISH-LM): High-velocity H2O bullets in L1448-MM observed with HIFI, arXiv:
Kristensen L.E., Visser R., van Dishoeck E.F., Yıldız U.A., Doty S.D., Herczeg G.J., Liu F.C., Parise B., Jørgensen J.K. & van Kempen T.A. & (2010). Water in low-mass star-forming regions with Herschel HIFI spectroscopy of NGC 1333, Astronomy and Astrophysics, 521 L30. DOI:

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