Results 61 to 70 of about 87,580 (344)

The Brown Dwarf Kinematics Project I. Proper motions and tangential velocities for a large sample of late-type M, L, and T dwarfs [PDF]

, 2009
We report proper-motion measurements for 427 late-type M, L, and T dwarfs, 332 of which have been measured for the first time. Combining these new proper motions with previously published measurements yields a sample of 841 M7-T8 dwarfs.
Burgasser, Adam J., Cruz, Kelle L., Faherty, Jacqueline K., Gelino, Christopher R., Shara, Michael M., Walter, Frederick M.   +5 more
core  

MOND and the seven dwarfs

, 1995
Gerhard had recently analyzed the data on seven dwarf spheroidals, and concluded that these disagree with the predictions of MOND. We contend that this conclusion is anything but correct.
Milgrom, Mordehai
core   +1 more source

The UKIDSS-2MASS Proper Motion Survey I: Ultracool dwarfs from UKIDSS DR4 [PDF]

, 2008
The UKIRT Infrared Deep Sky Survey (UKIDSS) is the first of a new generation of infrared surveys. Here we combine the data from two UKIDSS components, the Large Area Survey (LAS) and the Galactic Cluster Survey (GCS), with 2MASS data to produce an ...
Adelman-McCarthy, Ambartsumyan, Argelander, Baraffe, Barrado y Navascues, Bouvier, Bouy, Burgasser, Burgasser, Burgasser, Casali, Cossburn, Crifo, Cruz, Cruz, Cushing, Dahn, Deacon, Deacon, Delfosse, Delfosse, Emerson, Epchtein, Fan, Finch, Giclas, Gizis, Golimowski, Hambly, Hambly, Hambly, Hawley, Henry, Hewett, Hog, Kirkpatrick, Kirkpatrick, Kirkpatrick, Knapp, Lawrence, Leggett, Lepine, Lepine, Lepine, Liebert, Lodieu, Lodieu, Lodieu, Looper, Luyten, Luyten, M. J. McCaughrean, Metchev, N. C. Hambly, N. R. Deacon, Phan-Bao, Pinfield, Pokorny, R. R. King, Reid, Reid, Schneider, Skrutskie, Stauffer, Tinney, Tinney, Tinney, Tinney, van Altena, Vrba, Warren, Wilson   +71 more
core   +3 more sources

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

Control of Covalent Bond Enables Efficient Magnetic Cooling

Advanced Materials, EarlyView.
Giant and reversible magnetocaloric effect (MCE) is achieved by tuning covalency through sub‐unit‐cell chemical engineering, establishing a novel design principle for effective hysteresis control in magnetocaloric materials. Abstract Magnetic cooling, harnessing the temperature change in matter when exposed to a magnetic field, presents an energy ...
Xin Tang, Yoshio Miura, Noriki Terada, Enda Xiao, Shintaro Kobayashi, Allan Döring, Terumasa Tadano, Andres Martin‐Cid, Takuo Ohkochi, Shogo Kawaguchi, Yoshitaka Matsushita, Tadakatsu Ohkubo, Tetsuya Nakamura, Konstantin Skokov, Oliver Gutfleisch, Kazuhiro Hono, Hossein Sepehri‐Amin   +16 more
wiley   +1 more source

VLTI/GRAVITY Observations and Characterization of the Brown Dwarf Companion HD 72946 B

The Astrophysical Journal, 2023
Tension remains between the observed and modeled properties of substellar objects, but objects in binary orbits, with known dynamical masses, can provide a way forward.
William O. Balmer, Laurent Pueyo, Tomas Stolker, Henrique Reggiani, A.-L. Maire, S. Lacour, P. Mollière, M. Nowak, D. Sing, N. Pourré, S. Blunt, J. J. Wang, E. Rickman, J. Kammerer, Th. Henning, K. Ward-Duong, R. Abuter, A. Amorim, R. Asensio-Torres, M. Benisty, J.-P. Berger, H. Beust, A. Boccaletti, A. Bohn, M. Bonnefoy, H. Bonnet, G. Bourdarot, W. Brandner, F. Cantalloube, P. Caselli, B. Charnay, G. Chauvin, A. Chavez, E. Choquet, V. Christiaens, Y. Clénet, V. Coudé du Foresto, A. Cridland, R. Dembet, J. Dexter, A. Drescher, G. Duvert, A. Eckart, F. Eisenhauer, F. Gao, P. Garcia, R. Garcia Lopez, E. Gendron, R. Genzel, S. Gillessen, J. H. Girard, X. Haubois, G. Heißel, S. Hinkley, S. Hippler, M. Horrobin, M. Houllé, Z. Hubert, L. Jocou, M. Keppler, P. Kervella, L. Kreidberg, A.-M. Lagrange, V. Lapeyrère, J.-B. Le Bouquin, P. Léna, D. Lutz, J. D. Monnier, D. Mouillet, E. Nasedkin, T. Ott, G. P. P. L. Otten, C. Paladini, T. Paumard, K. Perraut, G. Perrin, O. Pfuhl, J. Rameau, L. Rodet, G. Rousset, Z. Rustamkulov, J. Shangguan, T. Shimizu, J. Stadler, O. Straub, C. Straubmeier, E. Sturm, L. J. Tacconi, E. F. van Dishoeck, A. Vigan, F. Vincent, S. D. von Fellenberg, F. Widmann, E. Wieprecht, E. Wiezorrek, T. Winterhalder, J. Woillez, S. Yazici, A. Young, The ExoGRAVITY Collaboration, The GRAVITY Collaboration   +100 more
doaj   +1 more source

Aqueously Upcycled Lignin with Emergent Tribonegativity for Skin‐Integrated Triboelectronics

Advanced Materials, EarlyView.
Aqueously upcycled lignin is transformed into a printable ink that self‐assembles into a nanotextured surface during printing with the highest reported biopolymer‐based tribonegativity. The resulting skin‐integrated triboelectric sensor enables high‐fidelity cardiovascular monitoring and objective mental workload classification, demonstrating a ...
Robert Ccorahua‐Santo, Mi Li, Yi Zheng, Wenzhuo Wu   +3 more
wiley   +1 more source

Searching for Exosatellites Orbiting L and T Dwarfs: Connecting Planet Formation to Moon Formation and Finding New Temperate Worlds [PDF]

, 2019
L-type and T-type dwarfs span the boundaries between main-sequence stars, brown dwarfs, and planetary-mass objects. For these reasons, L and T dwarfs are the perfect laboratories for exploring the relationship between planet formation and moon formation,
Burgasser, Adam, Faherty, Jacqueline, Gagliuffi, Daniella Bardalez, Muirhead, Philip S., Radigan, Jacqueline, Skinner, Julie N., Stephens, Denise, Tamburo, Patrick, Theissen, Christopher, Triaud, Amaury   +9 more
core   +2 more sources

The NIRSPEC Brown Dwarf Spectroscopic Survey II: High-Resolution J-Band Spectra of M, L and T Dwarfs [PDF]

, 2006
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 obtained using eight echelle orders to cover part of the J-band from 1.165-1.323
Adam J. Burgasser, Delfosse X., Emily L. Rice, Ian S. McLean, J. Davy Kirkpatrick, Jones H. R. A., Jones H. R. A., L. Prato, Mark R. McGovern, Sungsoo S. Kim   +9 more
core   +2 more sources

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