Search for small trans-Neptunian objects by the TAOS project

W. P. Chen, C. Alcock, T. Axelrod, F. B. Bianco, Yong-Ik Byun, Y. H. Chang, K. H. Cook, R. Dave, J. Giammarco, D. W. Kim, S. K. King, T. Lee, M. Lehner, C. C. Lin, H. C. Lin, J. J. Lissauer, S. Marshall, N. Meinshausen, S. Mondal, I. De PaterR. Porrata, J. Rice, M. E. Schwamb, A. Wang, S. Y. Wang, C. Y. Wen, Z. W. Zhang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The Taiwan-America Occultation Survey (TAOS) aims to determine the number of small icy bodies in the outer reach of the Solar System by means of stellar occultation. An array of 4 robotic small (D=0.5 m), wide-field (f/1.9) telescopes have been installed at Lulin Observatory in Taiwan to simultaneously monitor some thousand of stars for such rare occultation events. Because a typical occultation event by a TNO a few km across will last for only a fraction of a second, fast photometry is necessary. A special CCD readout scheme has been devised to allow for stellar photometry taken a few times per second. Effective analysis pipelines have been developed to process stellar light curves and to correlate any possible flux changes among all telescopes. A few billion photometric measurements have been collected since the routine survey began in early 2005. Our preliminary result of a very low detection rate suggests a deficit of small TNOs down to a few km size, consistent with the extrapolation of some recent studies of larger (30100 km) TNOs.

Original languageEnglish
Pages (from-to)65-68
Number of pages4
JournalProceedings of the International Astronomical Union
Volume2
Issue numberS236
DOIs
Publication statusPublished - 2006 Aug 1

Fingerprint

trans-Neptunian objects
occultation
Taiwan
photometry
robotics
stellar occultation
telescopes
solar system
observatory
light curve
readout
extrapolation
charge coupled devices
observatories
stars
project
detection
analysis
rate

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Chen, W. P., Alcock, C., Axelrod, T., Bianco, F. B., Byun, Y-I., Chang, Y. H., ... Zhang, Z. W. (2006). Search for small trans-Neptunian objects by the TAOS project. Proceedings of the International Astronomical Union, 2(S236), 65-68. https://doi.org/10.1017/S1743921307003079
Chen, W. P. ; Alcock, C. ; Axelrod, T. ; Bianco, F. B. ; Byun, Yong-Ik ; Chang, Y. H. ; Cook, K. H. ; Dave, R. ; Giammarco, J. ; Kim, D. W. ; King, S. K. ; Lee, T. ; Lehner, M. ; Lin, C. C. ; Lin, H. C. ; Lissauer, J. J. ; Marshall, S. ; Meinshausen, N. ; Mondal, S. ; De Pater, I. ; Porrata, R. ; Rice, J. ; Schwamb, M. E. ; Wang, A. ; Wang, S. Y. ; Wen, C. Y. ; Zhang, Z. W. / Search for small trans-Neptunian objects by the TAOS project. In: Proceedings of the International Astronomical Union. 2006 ; Vol. 2, No. S236. pp. 65-68.
@article{c1737244a4f149068d34030297a29923,
title = "Search for small trans-Neptunian objects by the TAOS project",
abstract = "The Taiwan-America Occultation Survey (TAOS) aims to determine the number of small icy bodies in the outer reach of the Solar System by means of stellar occultation. An array of 4 robotic small (D=0.5 m), wide-field (f/1.9) telescopes have been installed at Lulin Observatory in Taiwan to simultaneously monitor some thousand of stars for such rare occultation events. Because a typical occultation event by a TNO a few km across will last for only a fraction of a second, fast photometry is necessary. A special CCD readout scheme has been devised to allow for stellar photometry taken a few times per second. Effective analysis pipelines have been developed to process stellar light curves and to correlate any possible flux changes among all telescopes. A few billion photometric measurements have been collected since the routine survey began in early 2005. Our preliminary result of a very low detection rate suggests a deficit of small TNOs down to a few km size, consistent with the extrapolation of some recent studies of larger (30100 km) TNOs.",
author = "Chen, {W. P.} and C. Alcock and T. Axelrod and Bianco, {F. B.} and Yong-Ik Byun and Chang, {Y. H.} and Cook, {K. H.} and R. Dave and J. Giammarco and Kim, {D. W.} and King, {S. K.} and T. Lee and M. Lehner and Lin, {C. C.} and Lin, {H. C.} and Lissauer, {J. J.} and S. Marshall and N. Meinshausen and S. Mondal and {De Pater}, I. and R. Porrata and J. Rice and Schwamb, {M. E.} and A. Wang and Wang, {S. Y.} and Wen, {C. Y.} and Zhang, {Z. W.}",
year = "2006",
month = "8",
day = "1",
doi = "10.1017/S1743921307003079",
language = "English",
volume = "2",
pages = "65--68",
journal = "Proceedings of the International Astronomical Union",
issn = "1743-9213",
publisher = "Cambridge University Press",
number = "S236",

}

Chen, WP, Alcock, C, Axelrod, T, Bianco, FB, Byun, Y-I, Chang, YH, Cook, KH, Dave, R, Giammarco, J, Kim, DW, King, SK, Lee, T, Lehner, M, Lin, CC, Lin, HC, Lissauer, JJ, Marshall, S, Meinshausen, N, Mondal, S, De Pater, I, Porrata, R, Rice, J, Schwamb, ME, Wang, A, Wang, SY, Wen, CY & Zhang, ZW 2006, 'Search for small trans-Neptunian objects by the TAOS project', Proceedings of the International Astronomical Union, vol. 2, no. S236, pp. 65-68. https://doi.org/10.1017/S1743921307003079

Search for small trans-Neptunian objects by the TAOS project. / Chen, W. P.; Alcock, C.; Axelrod, T.; Bianco, F. B.; Byun, Yong-Ik; Chang, Y. H.; Cook, K. H.; Dave, R.; Giammarco, J.; Kim, D. W.; King, S. K.; Lee, T.; Lehner, M.; Lin, C. C.; Lin, H. C.; Lissauer, J. J.; Marshall, S.; Meinshausen, N.; Mondal, S.; De Pater, I.; Porrata, R.; Rice, J.; Schwamb, M. E.; Wang, A.; Wang, S. Y.; Wen, C. Y.; Zhang, Z. W.

In: Proceedings of the International Astronomical Union, Vol. 2, No. S236, 01.08.2006, p. 65-68.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Search for small trans-Neptunian objects by the TAOS project

AU - Chen, W. P.

AU - Alcock, C.

AU - Axelrod, T.

AU - Bianco, F. B.

AU - Byun, Yong-Ik

AU - Chang, Y. H.

AU - Cook, K. H.

AU - Dave, R.

AU - Giammarco, J.

AU - Kim, D. W.

AU - King, S. K.

AU - Lee, T.

AU - Lehner, M.

AU - Lin, C. C.

AU - Lin, H. C.

AU - Lissauer, J. J.

AU - Marshall, S.

AU - Meinshausen, N.

AU - Mondal, S.

AU - De Pater, I.

AU - Porrata, R.

AU - Rice, J.

AU - Schwamb, M. E.

AU - Wang, A.

AU - Wang, S. Y.

AU - Wen, C. Y.

AU - Zhang, Z. W.

PY - 2006/8/1

Y1 - 2006/8/1

N2 - The Taiwan-America Occultation Survey (TAOS) aims to determine the number of small icy bodies in the outer reach of the Solar System by means of stellar occultation. An array of 4 robotic small (D=0.5 m), wide-field (f/1.9) telescopes have been installed at Lulin Observatory in Taiwan to simultaneously monitor some thousand of stars for such rare occultation events. Because a typical occultation event by a TNO a few km across will last for only a fraction of a second, fast photometry is necessary. A special CCD readout scheme has been devised to allow for stellar photometry taken a few times per second. Effective analysis pipelines have been developed to process stellar light curves and to correlate any possible flux changes among all telescopes. A few billion photometric measurements have been collected since the routine survey began in early 2005. Our preliminary result of a very low detection rate suggests a deficit of small TNOs down to a few km size, consistent with the extrapolation of some recent studies of larger (30100 km) TNOs.

AB - The Taiwan-America Occultation Survey (TAOS) aims to determine the number of small icy bodies in the outer reach of the Solar System by means of stellar occultation. An array of 4 robotic small (D=0.5 m), wide-field (f/1.9) telescopes have been installed at Lulin Observatory in Taiwan to simultaneously monitor some thousand of stars for such rare occultation events. Because a typical occultation event by a TNO a few km across will last for only a fraction of a second, fast photometry is necessary. A special CCD readout scheme has been devised to allow for stellar photometry taken a few times per second. Effective analysis pipelines have been developed to process stellar light curves and to correlate any possible flux changes among all telescopes. A few billion photometric measurements have been collected since the routine survey began in early 2005. Our preliminary result of a very low detection rate suggests a deficit of small TNOs down to a few km size, consistent with the extrapolation of some recent studies of larger (30100 km) TNOs.

UR - http://www.scopus.com/inward/record.url?scp=37049025969&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=37049025969&partnerID=8YFLogxK

U2 - 10.1017/S1743921307003079

DO - 10.1017/S1743921307003079

M3 - Article

AN - SCOPUS:37049025969

VL - 2

SP - 65

EP - 68

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

SN - 1743-9213

IS - S236

ER -