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20 April 2024

» arxiv » astro-ph/0011527

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Discovery of the Bright Trans-Neptunian Object 2000 EB173
Ignacio Ferrin ; D. Rabinowitz ; B. Schaefer ; J. Snyder ; N. Ellman ; B. Vicente ; A. Rengstorf ; D. Depoy ; S. Salim ; P. Andrews ; C. Bailyn ; C. Baltay ; C. Briceno ; P. Coppi ; M. Deng ; W. Emmet ; A. Oemler ; C. Sabbey ; J. Shin ; S. Sofia ; W. van Altena ; K. Vivas ; C. Abad ; A. Bongiovanni ; G. Bruzual ; F. Della Prugna ; D. Herrera ; G. Magris ; J. Mateu ; R. Pacheco ; Ge. Sanchez ; Gu. Sanchez ; H. Schenner ; J. Stock ; K. Vieira ; F. Fuenmayor ; J. Hernandez ; O. Naranjo ; P. Rosenzweig ; C. Secco ; G. Spavieri ; M. Gebhard ; H. Honeycutt ; S. Mufson ; J. Musser ; S. Pravdo ; E. Helin ; K. Lawrence ;
Date:	28 Nov 2000
Journal:	Astrophys.J. 548 (2001) L243-L248
Subject:	astro-ph
Affiliation:	Universidad de los Andes
Abstract:	We describe the discovery circumstances and photometric properties of 2000 EB173, now one of the brightest trans-Neptunian objects (TNOs) with opposition magnitude m_R=18.9 and also one of the largest Plutinos, found with the drift-scanning camera of the QUEST Collaboration, attached to the 1-m Schmidt telescope of the National Observatory of Venezuela. We measure B-V = 0.99 +/- 0.14 and V-R = 0.57 +/- 0.05, a red color observed for many fainter TNOs. At our magnitude limit m_R = 20.1 +/- 0.20, our single detection reveals a sky density of 0.015 (+0.034, -0.012) TNOs per deg^2 (the error bars are 68% confidence limits), consistent with fainter surveys showing a cumulative number proportional to 10^0.5m_R. Assuming an inclination distribution of TNOs with FWHM exceeding 30 deg, it is likely that one hundred to several hundred objects brighter than m_R=20.1 remain to be discovered.
Source:	arXiv, astro-ph/0011527
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