Pencil-Beam Surveys for Faint Trans-Neptunian Objects

Details Pencil-Beam Surveys for Faint Trans-Neptunian Objects Pencil-Beam Surveys for Faint Trans-Neptunian Objects

1998-06-25

arxiv.org/abs/astro-ph/9806344v1

Astronomy and Astrophysics

Astrophysics

Accepted by AJ, 18 pages, including 6 figures

Scientific paper

10.1086/300573

We have conducted pencil-beam searches for outer solar system objects to a limiting magnitude of R ~ 26. Five new trans-neptunian objects were detected in these searches. Our combined data set provides an estimate of ~90 trans-neptunian objects per square degree brighter than ~ 25.9. This estimate is a factor of 3 above the expected number of objects based on an extrapolation of previous surveys with brighter limits, and appears consistent with the hypothesis of a single power-law luminosity function for the entire trans-neptunian region. Maximum likelihood fits to all self-consistent published surveys with published efficiency functions predicts a cumulative sky density Sigma(

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