Discovery of a Cold and Gravitationally Unstable Cloud Fragment

Details Discovery of a Cold and Gravitationally Unstable Cloud Fragment Discovery of a Cold and Gravitationally Unstable Cloud Fragment

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...272l...5c&link_type=abstract

Astronomy and Astrophysics, Vol.272, NO. 1/MAYI, P. L5, 1993

Astronomy and Astrophysics

Astrophysics

53

Interstellar Medium: Dust, Formation Of Stars

Scientific paper

1300μm mapping of the region around the energy source of HH24 in the dark cloud L1652 has revealed a neighbouring strong, previously unknown source of dust emission. Photometry at 450, 800, 1100 and 1300μm yields a very low dust temperature of around 10 K. Estimates for the mass of the object lead to values of 36 and 52 Msun for radii of 4.1 × 1016 and 8.2 × 1016 cm which is at least a factor of 50 above the Jeans mass. The 1300μm contours show an elongation along N-S and a strong central increase in density. These observational facts lead us to suggest that we have detected a cold and gravitationally unstable cloud fragment which might be a protostar.

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