Molecular observations of a pair of dense cores in the dark cloud L1155

Details Molecular observations of a pair of dense cores in the dark cloud L1155 Molecular observations of a pair of dense cores in the dark cloud L1155

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...249..493h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 249, no. 2, Sept. 1991, p. 493-504. Research supported by Natural Science Rese

Astronomy and Astrophysics

Astrophysics

18

Ammonia, Carbon Monoxide, Cepheus Constellation, Formyl Ions, Interstellar Matter, Molecular Clouds, Carbon Isotopes, Cores, Molecular Ions

Scientific paper

Attention is given to observations and star counts of the L1155/1158 high-latitude dark cloud in Cepheus. The C(O-18), HCO(+), and NH3 observations reveal that the L1155 cloud consists of two separate cloud clumps, L1155C1 and L1155C2. The maxima of the H(C-12)O(+) and NH3(1,1) radiation temperature maps are found to coincide with each other except in the front region between these clouds where a maximum is seen in the HCO(+) emission but not in NH3. The kinetic temperature of the central regions are around 10K; and the number density of H2 is 1.6 x 10 exp 4/cu cm for the L1155C1 and 6.9 x 10 exp 3/cu cm for L1155C2. The masses obtained for L1155C1 and C2 are 14 and 4 solar masses, respectively.

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