Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...193.7117h&link_type=abstract
American Astronomical Society, 193rd AAS Meeting, #71.17; Bulletin of the American Astronomical Society, Vol. 30, p.1358
Astronomy and Astrophysics
Astronomy
Scientific paper
Eighteen of the coldest IRAS sources associated with Bok globules were mapped at 450 mu m and 850 mu m using the submillimeter common user bolometer array SCUBA on the JCMT. Half of these IRAS sources were detected at these wavelengths. Most of the globule cores were observed to have only one submillimeter peak; however, cores with multiple peaks were found in the more massive globules located more than a kiloparsec away. For both the nearby and distant globules, some of the positions of peak submillimeter emission are different from the positions of near-infrared sources located in the globules. Assuming these near-infrared sources are more evolved pre-main-sequence objects than the protostars detected only as submillimeter sources, then these observations may suggest that multiple epochs of star formation are possible in both the less massive, nearby globules and the more massive, distant globules.
Huard Tracy
Sandell Goeran
Weintraub David A.
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