Martín, E. L. and Brandner, W. and Basri, G. (1999) A Search for Companions to Nearby Brown Dwarfs: The Binary DENIS-P J1228.2-1547. Science, 283 (5408). pp. 1718-1720. ISSN 0036-8075. doi:10.1126/science.283.5408.1718. https://resolver.caltech.edu/CaltechAUTHORS:20141124-080246281
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Abstract
Hubble Space Telescope imaging observations of two nearby brown dwarfs, DENIS-P J1228.2-1547 and Kelu 1, made with the near-infrared camera and multiobject spectrometer (NICMOS), show that the DENIS object is resolved into two components of nearly equal brightness with a projected separation of 0.275 arc second (5 astronomical units for a distance of 18 parsecs). This binary system will be able to provide the first dynamical measurement of the masses of two brown dwarfs in only a few years. Upper limits to the mass of any unseen companion in Kelu 1 yield a planet of 7 Jupiter masses aged 0.5 × 10^9years, which would have been detected at a separation larger than about 4 astronomical units. This example demonstrates that giant planets could be detected by direct imaging if they exist in Jupiter-like orbits around nearby young brown dwarfs.
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| Additional Information: | © 1999 American Association for the Advancement of Science. Received 17 December 1998; accepted 2 February 1999. This paper is based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy under NASA contract NAS5-26555. We thank the director of the Space Telescope Science Institute for granting us HST Director Discretionary time. G.B. acknowledges the support of NSF through grant AST96-18439. E.L.M. was supported by a postdoctoral fellowship of the Spanish Ministerio de Educación y Cultura. | |||||||||
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| Issue or Number: | 5408 | |||||||||
| DOI: | 10.1126/science.283.5408.1718 | |||||||||
| Record Number: | CaltechAUTHORS:20141124-080246281 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20141124-080246281 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 52080 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Tony Diaz | |||||||||
| Deposited On: | 24 Nov 2014 21:38 | |||||||||
| Last Modified: | 10 Nov 2021 19:20 |
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