A dynamical calibration of the mass–luminosity relation at very low stellar masses and young ages

Laird M. Close (), Rainer Lenzen, Jose C. Guirado, Eric L. Nielsen, Eric E. Mamajek, Wolfgang Brandner, Markus Hartung, Chris Lidman and Beth Biller
Additional contact information
Laird M. Close: University of Arizona
Rainer Lenzen: Max-Plank-Institut fur Astronomie
Jose C. Guirado: Universitat de Valencia
Eric L. Nielsen: University of Arizona
Eric E. Mamajek: University of Arizona
Wolfgang Brandner: Max-Plank-Institut fur Astronomie
Markus Hartung: European Southern Observatory
Chris Lidman: European Southern Observatory
Beth Biller: University of Arizona

Nature, 2005, vol. 433, issue 7023, 286-289

Abstract: Star formation: evidence of mass The rapidly spinning young star AB Doradus (AB Dor) is thought to have a low-mass companion star, detected as an astrometric ‘wobble’. It has proved elusive — even to the Hubble Space Telescope — but now a new instrument built to image extrasolar planets shows what it can do by observing the faint companion. The high-contrast NACO SDI adaptive optics camera at the European Southern Observatory reveals the object, dubbed AB Dor C, to be of very low mass for a star (90 times that of Jupiter). It is 400 °C cooler and 2.5 times fainter than predicted by stellar models. This suggests that most known brown dwarfs and extrasolar planets are heavier than was thought, and the new findings will be important for the design of future cameras intended to find extrasolar planets. See the cover story for more on the search for new planets.

Date: 2005
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/nature03225 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:433:y:2005:i:7023:d:10.1038_nature03225

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/nature03225

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().