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Discovery of Young, Isolated Planetary Mass Objects in the σ Orionis Star Cluster
We present the discovery by optical and near-infrared imaging of an extremely red, low-luminosity population of isolated objects in the young, nearby stellar cluster around the multiple, massive star…
The Substellar Mass Function in σ Orionis
We combine results from imaging searches for substellar objects in the σ Orionis cluster and follow-up photometric and spectroscopic observations to derive a census of the brown dwarf population in a…
New Low-Mass Members of the Taurus Star-forming Region
- K. Luhman, C. Briceño, J. Stauffer, L. Hartmann, D. B. Navascués, N. Caldwell
- Physics, Geology
- 23 April 2003
Briceño et al. recently used optical imaging, data from the Two-Micron All-Sky Survey (2MASS), and follow-up spectroscopy to search for young low-mass stars and brown dwarfs in 8 deg2 of the Taurus…
VOSA: Virtual Observatory SED Analyzer. An application to the Collinder 69 open cluster
- A. Bayo, C. Rodrigo, F. Allard
- Physics
- 2 August 2008
Context. The physical properties of almost any kind of astronomical object can be derived by fitting synthetic spectra or photometry extracted from theoretical models to observational data. Aims. We…
Spectroscopy of Very Low Mass Stars and Brown Dwarfs in IC 2391: Lithium Depletion and Hα Emission
- D. B. Navascués, J. Stauffer, R. Jayawardhana
- Physics
- 19 June 2004
We have obtained intermediate-resolution optical spectroscopy of 44 candidate very low mass members of the nearby young open cluster IC 2391. Of these, 26 spectra are totally new, 14 had been…
A Methane, Isolated, Planetary-Mass Object in Orion
- M. Z. Zapatero Osorio, V. Béjar, J. Caballero
- Physics, Geology
- 20 June 2002
We report on the discovery of a free-floating methane dwarf toward the direction of the young star cluster σ Ori. Based on the object's far-red, optical, and near-infrared photometry and…
Stellar Clusters and Associations: Convection, Rotation, and Dynamos
- R. Jeffries, E. Totten, J. Stauffer, D. B. Navascués, N. Hambly
- Physics
- 2000
Keck Spectra of Brown Dwarf Candidates and a Precise Determination of the Lithium Depletion Boundary in the α Persei Open Cluster
- J. Stauffer, D. B. Navascués, P. Assouad
- Geology, Physics
- 13 September 1999
We have identified 27 candidate very low mass members of the relatively young α Persei open cluster from a 6 deg2 CCD imaging survey. Based on their I magnitudes and the nominal age and distance to…
FROM SHOCK BREAKOUT TO PEAK AND BEYOND: EXTENSIVE PANCHROMATIC OBSERVATIONS OF THE TYPE Ib SUPERNOVA 2008D ASSOCIATED WITH SWIFT X-RAY TRANSIENT 080109
- M. Modjaz, W. Li, W. Wood-Vasey
- Physics
- 15 May 2008
We present extensive early photometric (ultraviolet through near-infrared) and spectroscopic (optical and near-infrared) data on supernova (SN) 2008D as well as X-ray data analysis on the associated…
The discovery of an M4+T8.5 binary system
- B. Burningham, D.J.Pinfield, M. Tamura
- Physics
- 11 February 2009
The original article can be found at: http://www3.interscience.wiley.com Copyright Blackwell Publishing / Royal Astronomical Society. DOI: 10.1111/j.1365-2966.2009.14620.x
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