Results 81 to 90 of about 1,398,905 (286)

Mid-infrared followup of cold brown dwarfs: Diversity in age, mass and metallicity

EPJ Web of Conferences, 2011
We use Spitzer IRAC 3.6–8.0 μm photometry of late-type T dwarfs to investigate various trends which can aid the planning and interpretation of infrared (IR) surveys for the coldest T or Y dwarfs. Brown dwarfs with effective temperature (Teff)50% of their
Pinfield D.J., Jones H.R.A., Warren S.J., Marley M.S., Saumon D., Burningham B., Leggett S.K., Smart R.L.   +7 more
doaj   +1 more source

Proso Millet (Panicum miliaceum): Nutritional Composition, Functional Attributes, and Health Implications

Future Postharvest and Food, EarlyView.
A nutrient‐dense grain, proso millet is well‐known for its high protein content and vital amino acids. It is high in fiber, vitamins, and minerals and has many health advantages, including promoting heart health, enhancing digestion, and helping with weight management.
Sangeeta Yadav, Pratiksha Singh, Mazia Ahmed, Pinki Saini   +3 more
wiley   +1 more source

The only inflated brown dwarf in an eclipsing white dwarf–brown dwarf binary: WD1032+011B

Monthly Notices of the Royal Astronomical Society
ABSTRACT Due to their short orbital periods and relatively high-flux ratios, irradiated brown dwarfs in binaries with white dwarfs offer better opportunities to study irradiated atmospheres than hot Jupiters, which have lower planet-to-star flux ratios. WD1032+011 is an eclipsing, tidally locked white dwarf–brown dwarf binary with a 9950 
French, J.R., Casewell, S.L., Amaro, R.C., Lothringer, J.D., Mayorga, L.C., Littlefair, S.P., Lew, B.W.P., Zhou, Y., Apai, D., Marley, M.S., Parmentier, V., Tan, X.   +11 more
openaire   +3 more sources

Monuments to Injustice and the Ethics of Dark Tourism: A Research Note

Journal of Applied Philosophy, EarlyView.
ABSTRACT This research note aims to motivate philosophical examination of the ethical tensions surrounding ‘dark tourism’ and monuments to injustice. While such monuments function to acknowledge past wrongs, educate the public, and serve reparative functions, their presentation as tourist destinations can undermine these purposes.
Kok‐Chor Tan
wiley   +1 more source

A SPHEREx Pipeline and Spectral Library for Ultracool Dwarfs

The Astrophysical Journal
We present a Python spectrophotometry extraction tool tailored for fast-moving point sources detected in the SPHEREx mission and use it to construct a set of 0.75–5.0 μ m low-resolution ( λ /Δ λ  ≈ 50) spectrophotometry data products based on the SPHEREx
Jonathan Gagné, Jacqueline K. Faherty, Azul Ruiz Diaz, Louis-Philippe Coulombe, Thomas P. Bickle, Adam C. Schneider, J. Davy Kirkpatrick, Marc J. Kuchner, Aaron M. Meisner, Dan Caselden, Adam J. Burgasser, Sarah Casewell, Easton J. Honaker, Frank Kiwy, Federico Marocco, Daniella C. Bardalez Gagliuffi, Nikolaj Stevnbak Andersen, Lizzeth Ruiz Arroyo, Bruce Baller, Paul Beaulieu, John Bell, Martin Bilsing, Troy K. Bohling, Guillaume Colin, Giovanni Colombo, Sam Deen, Alexandru Dereveanco, Kevin Dixon, Hugo A. Durantini Luca, Deiby Flores, Christoph Franck, Christopher Fulvi, Michael Gallmann, Jean Marc Gantier, Konstantin Glebov, Léopold Gramaize, Leslie K. Hamlet, Ken Hinckley, Kevin Jablonski, Peter A. Jałowiczor, Martin Kabatnik, Peter Kasprowitz, K Ly, David W. Martin, Naoufel Marzak, Alexander McColgan, Neil J. McEwan, Marianne N. Michaels, William Pendrill, Stéphane Perlin, Benjamin Pumphrey, James Rabe, Henry Raway, Walter Ruben Robledo, David Roser, Animesh Roy, Arttu Sainio, Vincent Schindler, Manfred Schonau, Jörg Schümann, Karl Selg-Mann, Andrea Serio, Patrick Smith, Andres Stenner, Christopher Tanner, Melina Thévenot, Vinod Thakur, Mayahuel Torres Guerrero, Maurizio Ventura, Nikita V. Voloshin, Jim Walla, Zbigniew Wȩdracki, Bailey Weyandt, Breck Wilhite, Spartacus Zitouni   +74 more
doaj   +1 more source

DEPLETION OF TiO AND SPECTRA OF THE COOLEST BROWN DWARFS

Odessa Astronomical Publications, 2017
This study was performed in the context of the ”lithium test” for brown dwarfs proposed by Rebolo et al. (1992). We consider the formation of lithium dust species in atmospheres of the coolest stars and substellar objects.
Ya. V. Pavlenko
doaj   +1 more source

Young Brown Dwarfs in Orion

, 2007
We have obtained optical spectra of 60 low-mass stars and brown dwarfs in Orion’s Trapezium cluster. Spectral types have been determined using a combination of narrowband indices derived from the spectra. 1. Observations Multi-object optical spectroscopy in the red region was carried out using TAURUS on the AAT and GMOS on Gemini-N on objects selected ...
Riddick, F, Roche, P, Lucas, P
openaire   +2 more sources

Must Longtermists Wish Us All Dead? A Quadrilemma

Journal of Applied Philosophy, EarlyView.
ABSTRACT Longtermists assign great moral importance to making the long‐term future as good as possible, especially by ensuring the survival of humanity. We argue, to the contrary, that on assumptions that are plausible, conservative, or shared by leading longtermists, human extinction will likely augment total utility among human and non‐human animals ...
Nir Eyal, Bastian Steuwer, Shai Meiri
wiley   +1 more source

Simulations of Electron Beam Interactions in Brown Dwarf Atmospheres

The Astrophysical Journal
Over two decades ago, the first detection of electron cyclotron maser instability radio emission from a brown dwarf confirmed the presence of aurorally precipitating electrons on these objects.
Anna Zuckerman, J. Sebastian Pineda, David Brain, James Mang, Caroline V. Morley   +4 more
doaj   +1 more source

The Initial Mass Function of Low-mass Stars and Brown Dwarfs in the W3 Complex. [PDF]

Astron J, 2021
Huston MJ, Luhman KL.
europepmc   +1 more source