Abstract
view Abstract Citations (61) References (45) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A Millimeter-Wave Line Study of L1287: A Case of Induced Star Formation by Stellar Wind Compression? Yang, Ji ; Umemoto, Tomofumi ; Iwata, Takahiro ; Fukui, Yasuo Abstract Results are presented of both low- and high-resolution molecular-line observations made toward the dark cloud L1287. The cloud appears filamentary in (C-13)O emission and extends over 10 pc along the Galactic plane. At least four separate cores are aligned along the filament. The most intense emission of (C-13)O comes from the L1287 main core. The total mass of the cloud is estimated to be about 240 solar masses. An energetic molecular outflow has been discovered in (C-12)O emission toward the peak of the main cloud core where a cold-type IRAS source, which is suggested to be the driving source of the outflow, is located. The central part of the main (C-13)O core has been mapped in HCN and HCO(+) (J = 1-0) lines. These lines are intense and optically thick, as suggested by the strong self-absorption. Both emission components have sizes of 0.1 pc. The lower limit of the mass of the HCN core is estimated to be 13 solar masses. Bipolar wing emission is also revealed in the HCO(+) spectra. The main (C-13)O core exhibits an unusually high ratio of the luminosity of the central object to the associated (C-13)O core mass in comparison with the typical isolated dark clouds in the solar neighborhood. The stellar wind from the neighboring Be star Kappa Cas is suggested to have played a role. Publication: The Astrophysical Journal Pub Date: May 1991 DOI: 10.1086/170032 Bibcode: 1991ApJ...373..137Y Keywords: Infrared Sources (Astronomy); Interstellar Chemistry; Interstellar Gas; Molecular Clouds; Star Formation; Stellar Winds; Carbon Monoxide; Carbon 13; Infrared Astronomy Satellite; Interstellar Extinction; Line Spectra; Millimeter Waves; Astrophysics; INFRARED: SOURCES; INTERSTELLAR: MOLECULES; NEBULAE: INDIVIDUAL ALPHANUMERIC: L1287 (LYNDS 1287); STARS: FORMATION full text sources ADS | data products SIMBAD (3)
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