384 citations
- California Institute of TechnologyUS104 papers
- University of ArizonaUS16 papers
- Imperial College LondonGB15 papers
- Jet Propulsion LaboratoryUS14 papers
- University of California, Los AngelesUS14 papers
- Center for Astrophysics Harvard & SmithsonianUS13 papers
- Centre National de la Recherche ScientifiqueFR13 papers
- Osservatorio Astronomico di PadovaIT13 papers
- University of CambridgeGB13 papers
- University of Hawaii SystemUS13 papers
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- Institut d'Astrophysique de ParisFR12 papers
21 papers · 1 filter
The NIRSPEC Brown Dwarf Spectroscopic Survey II: High-Resolution J-Band Spectra of M, L and T Dwarfs
Ian S. McLean, L. Prato, Mark R. McGovern +4
We present a sequence of high resolution (R~20,000 or 15 km/s) infrared spectra of stars and brown dwarfs spanning spectral types M2.5 to T6. Observations of 16 objects were obtain…
Searching for hidden Wolf-Rayet stars in the Galactic Plane - 15 new Wolf-Rayet stars
L. J. Hadfield, S. D. Van Dyk, P. W. Morris +3
We report the discovery of fifteen previously unknown Wolf-Rayet (WR) stars found as part of an infrared broad-band study of candidate WR stars in the Galaxy. We have derived an em…
Discovery of a High Proper Motion L Dwarf Binary: 2MASS J15200224-4422419AB
Adam J. Burgasser, Dagny L. Looper, J. Davy Kirkpatrick +1
We report the discovery of the wide L1.5+L4.5 binary 2MASS J15200224-4422419AB, identified during spectroscopic followup of high proper motion sources selected from the Two Micron…
A Near-Infrared Study of 2MASS Bars in Local Galaxies: An Anchor for High Redshift Studies
Karin Menendez-Delmestre, Kartik Sheth, Eva Schinnerer +2
We have measured the fraction of bars in nearby spiral galaxies using near-infrared J, H, and K_s images of 151 spiral galaxies from 2MASS. This local sample provides an anchor for…
The Peculiar SN 2005hk: Do Some Type Ia Supernovae Explode as Deflagrations?
M. M. Phillips, W. Li, J. A. Frieman +41
We present extensive u'g'r'i'BVRIYJHKs photometry and optical spectroscopy of SN 2005hk. These data reveal that SN 2005hk was nearly identical in its observed properties to SN 2002…
Optical Spectroscopy of 2MASS Color-Selected Ultracool Subdwarfs
Adam J. Burgasser, Kelle L. Cruz, J. Davy Kirkpatrick
We present Gemini GMOS and Magellan LDSS-3 optical spectroscopy for seven ultracool subdwarf candidates color-selected from the Two Micron All Sky Survey. Five are identified as la…