Ten new H2O masers discovered in star-forming regions

Astronomy and Astrophysics – Astronomy

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Infrared Sources (Astronomy), Interstellar Masers, Star Formation, Water Masers, Herbig-Haro Objects, Infrared Astronomy Satellite, Radio Telescopes, Stellar Mass

Scientific paper

Radio telescopic observations are conducted on 97 IRAS objects that are known to have active star-formation regions or properties, and 15 H2O masers are reported in the data. Specific attention is given to the identification of characteristics of recently formed low- and intermediate-mass stars such as bipolar molecular outflows, strong IR emission, and the presence of H2O masers. Of the 15 H2O masers identified that could be related to HH objects five were previously reported, and ten are shown to statistically fit the profiles of known H2O masers. The remaining ten are given as: L1204-A, L1204-B, IC1805-W, L1641-N, S287-A, L483, L379IRS3, L379IRS2, 20188+3928, and IC1396-N. The data given include positions and flux densities of the objects, and the mean differences in positions are determined for the ten reported H2O masers vs the central IRAS point sources of outflow.

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