Results 61 to 70 of about 83,683 (249)

Calibrating Ultracool Dwarfs: Optical Template Spectra, Bolometric Corrections, and $\chi$ Values

, 2014
We present optical template spectra, bolometric corrections, and $\chi$ values for ultracool dwarfs. The templates are based on spectra from the Sloan Digital Sky Survey (SDSS) and the Astrophysical Research Consortium 3.5-m telescope.
Bochanski, John J., Hawley, Suzanne L., Kielty, Collin, Schmidt, Sarah J., West, Andrew A.   +4 more
core   +1 more source

Discovery of An Unusually Blue L Dwarf Within 10 pc of the Sun [PDF]

, 2009
We report the discovery of an unusually blue L5 dwarf within 10 pc of the Sun from a search of Sloan Digital Sky Survey (SDSS) spectra. A spectrophotometric distance estimate of 8.0+/-1.6 pc places SDSS J141624.08+134826.7 among the six closest known L ...
Abazajian, Ackerman, Adam J. Burgasser, Allen, Andrew A. West, Burgasser, Burgasser, Burgasser, Burgasser, Burrows, Chiu, Covey, Cruz, Cruz, Cushing, Faherty, Fuchs, Geballe, Gizis, Hawley, Henry, John J. Bochanski, Kirkpatrick, Kirkpatrick, Knapp, Looper, Looper, Mohanty, Reid, Reid, Reid, Reid, Reid, Reid, Sarah J. Schmidt, Schmidt, Schmidt, Sheppard, Skrutskie, Suzanne L. Hawley, Tokunaga, West, West   +42 more
core   +2 more sources

Multifunctional Crushing and Piezoresistive Self‐Sensing in Conductive Epoxy/CNT‐Coated Polyetherimide TPMS Lattices

Advanced Engineering Materials, EarlyView.
This study reports lightweight polyetherimide triply periodic minimal surfaces lattices coated with carbon nanotube‐reinforced epoxy that combine mechanical robustness with self‐sensing. The conformal coating enhances stiffness, strength and energy absorption while enabling reliable strain monitoring.
A. Triay, J. Schneider, P. Harrison, S. Kumar   +3 more
wiley   +1 more source

A Focus on L Dwarfs with Trigonometric Parallaxes [PDF]

Publications of the Astronomical Society of the Pacific, 2018
11 pages, 14 eps ...
Wang, Y., Smart, R. L., Shao, Z., Jones, H. R. A, Marocco, F., Luo, A., Burgasser, A., Zhong, J., Du, B.   +8 more
openaire   +2 more sources

Integrating ZnO/Ag2O@g‐C3N4‐Based Nanocomposites Into a Carrageenan Matrix to Efficiently Remove Heavy Metals From Water

Advanced Materials Interfaces, EarlyView.
ABSTRACT This research focused on characterizing graphitic carbon nitride (g‐C3N4) nanocomposites incorporated with ZnO and Ag2O nanoparticles, and carrageenan to remove heavy metals. The ZnO/Ag2O@ g‐C3N4 and ZnO/Ag2O/g‐C3N4@Carr nanocomposites demonstrated thermal stability of 97.40% (108.81°C) and 82.80% (188.99°C) for TGA.
Feziwe B. Mamba, Bhekani S. Mbuli, James Ramontja   +2 more
wiley   +1 more source

Discoveries from a Near-infrared Proper Motion Survey using Multi-epoch 2MASS Data [PDF]

, 2010
We have conducted a 4030-square-deg near-infrared proper motion survey using multi-epoch data from the Two Micron All-Sky Survey (2MASS). We find 2778 proper motion candidates, 647 of which are not listed in SIMBAD.
Adam J. Burgasser, Anne C. Sweet, Benedict, Borysow, Bowler, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Chiu, Cruz, Cruz, Cushing, Cushing, Cushing, Cushing, Cutri, Dagny L. Looper, Dahn, Emily L. Rice, Faherty, Finch, Geballe, Giclas, Giclas, Gillian R. Knapp, Gizis, Gizis, Hawley, Houck, Ian S. McLean, Innes, Ivezic, J. Davy Kirkpatrick, John J. Bochanski, Kashikawa, Kelle L. Cruz, Kirkpatrick, Kirkpatrick, Kirkpatrick, Kirkpatrick, Knapp, Lodieu, Looper, Looper, Looper, Luhman, Luhman, Luhman, Luyten, Luyten, Luyten, Luyten, Lépine, Lépine, Lépine, Lépine, Lépine, Mark R. McGovern, McLean, Michael C. Cushing, Monet, Radigan, Reid, Reid, Roc M. Cutri, Ruiz, Schmidt, Scholz, Sheppard, Steele, Steven D. Schurr, Teegarden, Thomas L. Roellig, Torres, Travis S. Barman, Vrba, Wolf   +85 more
core   +3 more sources

Pattern Formation in Non‐Equilibrium Architected Materials

Advanced Materials Technologies, EarlyView.
This article demonstrates an artificial mechanical system ‐ a robotic metamaterial ‐ as an accessible and versatile platform within which to explore and prescribe the reaction‐diffusion driven pattern formation hitherto associated with comparatively less accessible and versatile non‐equilibrium biological and chemical systems.
Vinod Ramakrishnan, Michael J. Frazier
wiley   +1 more source

Toward Robust Atmospheric Retrieval on Cloudy L Dwarfs: the Impact of Thermal and Abundance Profile Assumptions

The Astrophysical Journal, 2023
Constraining L dwarf properties from their spectra is challenging. Near-infrared (NIR) spectra probe a limited range of pressures, while many species condense within their photospheres. Condensation creates two complexities: gas-phase species “rain out” (
Melanie J. Rowland, Caroline V. Morley, Michael R. Line   +2 more
doaj   +1 more source

A search for variability in brown dwarfs and L dwarfs

, 1999
A&A in press.
Bailer-Jones, C. A. L., Mundt, R.
openaire   +2 more sources

The Future of Research in Cognitive Robotics: Foundation Models or Developmental Cognitive Models?

Advanced Robotics Research, EarlyView.
Research in cognitive robotics founded on principles of developmental psychology and enactive cognitive science would yield what we seek in autonomous robots: the ability to perceive its environment, learn from experience, anticipate the outcome of events, act to pursue goals, and adapt to changing circumstances without resorting to training with ...
David Vernon
wiley   +1 more source