Catalog of Nearby Exoplanets
- R. P. Butler, J. Wright, A. Penny
- Geology, Physics
- 20 July 2006
We present a catalog of nearby exoplanets. It contains the 172 known low-mass companions with orbits established through radial velocity and transit measurements around stars within 200 pc. We…
An unusual supernova in the error box of the γ-ray burst of 25 April 1998
- T. Galama, P. Vreeswijk, P. Ianna
- PhysicsNature
- 15 October 1998
The discovery of afterglows associated with γ-ray bursts at X-ray, optical and radio wavelengths and the measurement of the redshifts of some of these events, has established that γ-ray bursts lie at…
FURTHER DEFINING SPECTRAL TYPE “Y” AND EXPLORING THE LOW-MASS END OF THE FIELD BROWN DWARF MASS FUNCTION
- J. Davy Kirkpatrick, C. Gelino, G. Salter
- Physics, Geology
- 9 May 2012
We present the discovery of another seven Y dwarfs from the Wide-field Infrared Survey Explorer (WISE). Using these objects, as well as the first six WISE Y dwarf discoveries from Cushing et al., we…
Observed Properties of Exoplanets : Masses, Orbits, and Metallicities(Origins : From Early Universe to Extrasolar Planets)
- G.Marcy, R.P.Butler, H. Jones
- Geology, Physics
- 1 February 2005
precision (3 m s −1 ) and long duration. The 104 planets detected in this survey have minimum masses (M sin i )a s low as 6MEarth, orbiting between 0.02 and 6 AU. The core-accretion model of planet…
Constraining the difference in convective blueshift between the components of alpha Centauri with precise radial velocities
- D. Pourbaix, D. Nidever, D. Kent
- Physics
- 21 February 2002
New radial velocities of Cen A & B obtained in the framework the Anglo-Australian Planet Search programme as well as in the CORALIE programme are added to those by Endl et al. (2001) to improve the…
The intermediate-age brown dwarf LP 944-20
- C. Tinney
- Physics
- 17 January 1998
Observations are presented which show that Li I λ 6708 is detected with an equivalent width of 0.53 ± 0.05A in the proper-motion object LP 944-20 (which is also known as BRI 0337-3535). Hα is…
Discovery of a Very Young Field L Dwarf, 2MASS J01415823–4633574
- J. Kirkpatrick, T. Barman, P. Lowrance
- Physics, Geology
- 15 November 2005
It is suggested that lithium becomes weaker at lower gravity like all other alkali lines and thus needs to be carefully considered before being used as a diagnostic of age or mass for objects in this regime.
High-eccentricity planets from the Anglo-Australian Planet Search
- H. Jones, R. P. Butler, J. Bailey
- Geology, Physics
- 14 March 2006
We report Doppler measurements of the stars HD 187085 and HD 20782 which indicate two high eccentricity low-mass companions to the stars. We find HD 187085 has a Jupiter-mass companion with a �1000 d…
A Sample of Very Young Field L Dwarfs and Implications for the Brown Dwarf “Lithium Test” at Early Ages
- J. Kirkpatrick, K. Cruz, J. Stauffer
- Physics, Geology
- 22 August 2008
Using a large sample of optical spectra of late-type dwarfs, we identify a subset of late-M through L field dwarfs that, because of the presence of low-gravity features in their spectra, are believed…
The Bottom of the Main Sequence — And Beyond
- C. Tinney
- Physics, Geology
- 1995
I Modelling Very Low-Mass Stars and Brown Dwarfs.- The Quiet Lives of Very Low Mass Stars and Brown Dwarfs.- Luminosity Functions and the Mass Function.- The Evolution of Low-Mass Stars.- The…
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