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Session 14 - Various Stellar Surveys.
Display session, Wednesday, January 07
Exhibit Hall,

[14.04] An Infrared Survey of Protostars in the Perseus Molecular Cloud

A. R. Frey (Wake Forest U.), C. J. Lada, J. Alves, S. Kenyon (Harvard-Smithsonian CfA)

We present an IRAS survey for low mass Class 0, Class I, and flat spectrum protostars in the molecular cloud complex in Perseus. After matching near-IR (J, H, K band) data to IRAS fluxes, twenty-four protostars, including eight previously unstudied sources, were identified on the cloud, mostly near high density regions as given by the ^13CO map of Bachiller amp; Cernicharo.

Bolometric luminosities were calculated using the near-IR and IRAS band fluxes and an assumed long-wavelength spectrum form of \frac1\lambda. This study finds a mean protostellar luminosity of 27.01 L_ødot, and a median value of 9.53 L_ødot for the complete population. If, however, the protostars from the two clusters in Perseus (NGC 1333 and IC 348) were removed from the sample, the mean became 7.86 L_ødot, and the median became 6.80 L_ødot.

Finally, we present a comparison of the Perseus protostellar luminosity function to the luminosity functions of the Taurus and \rho Ophiuchus molecular clouds. After correcting for distance, a Kolmogorov-Smirnov test showed that the Perseus population was much more similar to the population in \rho Oph than in Taurus. However, the Kolmogorov-Smirnov test showed that the population of protostars outside of the clusters in Perseus was closer to the population in Taurus.

Bachiller, R. and Cernicharo, J. AA v.166, 1986, pp.283-290.

Program listing for Wednesday