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Disks around Young Brown Dwarfs
[article]
2002
arXiv
pre-print
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This offers compelling evidence of a common origin for most stars and brown dwarfs. ...
We present some results from a systematic survey for disks around spectroscopically identified young brown dwarfs and very low mass stars. ...
The latter also shows that brown dwarf disks are at least as long-lived as disks around stars, assuming that the stars and brown dwarfs are roughly coeval. ...
arXiv:astro-ph/0207477v1
fatcat:gsr56x4rerfx7lc2svg3v2yo6y
Handling Leakage with Subsystem Codes
[article]
2019
arXiv
pre-print
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For H C the computational Hilbert space and H |2 the leakage Hilbert space, this means that any two-qubit gate U factors as U = U H C ⊗H C ⊕ U H C ⊗H |2 ⊕ U H |2 ⊗H C ⊕ U H |2 ⊗H |2 . ...
The two-qubit gate U H C ⊗H C is the computational gate and U H |2 ⊗H |2 can only apply a harmless phase. ...
arXiv:1903.03937v1
fatcat:ae4a2prpurc3zcpq37xm6qjom4
Scientists Under Surveillance: The FBI Files—edited by JPat Brown, B. C. D. Lipton, and Michael Morisy (Cambridge, MA, USA: The MIT Press, 2019, 413 + xix pp.)
2022
IEEE technology & society magazine
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: Primate Communication . Charles T. Snowdon, Charles H. Brown, Michael R. Petersen
1984
American Anthropologist
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Brown, and Michael R. Petersen, eds. New York: Cambridge University Press, 1982. xx + 444 pp. $39.50 (cloth).
John C. ...
doi:10.1525/aa.1984.86.2.02a00790
fatcat:rbkdxbcsdrckbceoukdwz5rgxe
Disks around Young Brown Dwarfs
2003
Symposium - International astronomical union
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This offers compelling evidence of a common origin for most stars and brown dwarfs. ...
We present some results from a systematic survey for disks around spectroscopically identified young brown dwarfs and very low mass stars. ...
The latter also shows that brown dwarf disks are at least as long-lived as disks around stars, assuming that the stars and brown dwarfs are roughly coeval. ...
doi:10.1017/s0074180900210425
fatcat:k3fbfbu22bgutekyzdfvi7awhi
Bayesian Spectroscopic Characterization of Brown Dwarfs and Implications for Model Atmospheres
2021
Zenodo
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Spectroscopic characterization of brown dwarfs is essential for understanding their atmospheres, formation, and evolution, but such work is challenged by the unavoidably simplified model atmospheres needed ...
Therefore, we are conducting a systematic analysis of a valuable but underutilized resource: the numerous high-quality spectra of (free-floating or companion) brown dwarfs already accumulated by the community ...
Final
OUR FORWARD-MODELING FRAMEWORK
The Largest Spectroscopic Analysis of Brown Dwarfs • We study 55 T7-T9 brown dwarfs with IRTF/SpeX spectra and parallaxes. • We find inferred {Teff, log g, Z} errors ...
doi:10.5281/zenodo.4563102
fatcat:zutxqosqfvej7exo7bhpdpappu
Erratum: Errata
1985
Nature
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Specifically. suppose o: has continued fraction [a,b,c, ... ] . then the smaller that the entries a,b,c, ... are. the more irrational is a. ...
In Michael Brown's article "Tectonics of metamorphism" (28 Novemher. p.314). the wrong photomicrograph was used to illustrate Fig.2. ...
doi:10.1038/318512b0
fatcat:a4ltsf7eu5dv7meqfb7omlv74u
Neuronal Cell Death
2018
Physiological Reviews
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L Fricker M, Tolkovsky AM, Borutaite V, Coleman M, Brown GC. ...
C. ...
Bal-Price A, Matthias A, Brown GC. Stimulation of the NADPH oxidase in activated rat microglia removes nitric oxide but induces peroxynitrite production. ...
doi:10.1152/physrev.00011.2017
pmid:29488822
fatcat:ujlz4dldrzaxplorj6g2bjmmyy
Discovery of a Bright Field Methane (T-Type) Brown Dwarf by 2MASS
2000
Astronomical Journal
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We report the discovery of a bright (J = 13.83±0.03) methane brown dwarf, or T dwarf, by the Two Micron All Sky Survey. ...
This object, 2MASSI J0559191-140448, is the first brown dwarf identified by the newly commissioned CorMASS instrument mounted on the Palomar 60-inch Telescope. ...
C. W. acknowledges support by NASA grant NAG 5-4376. ...
doi:10.1086/301475
fatcat:xd2xpbmm4zforahezi5v3mjaqq
Testing Models with Brown Dwarf Binaries
2009
Proceedings of the International Astronomical Union
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Finally, as the sample of binaries with measured orbits grows, novel tests of brown dwarf formation theories are made possible (e.g., testing theoretical eccentricity distributions). ...
temperatures inferred from evolutionary model radii can be inconsistent with temperatures derived from fitting observed spectra with atmospheric models by at most 100–300 K. (3) For the single pair of field brown ...
doi:10.1017/s1743921310011439
fatcat:4uh46xs7tvf7xmpk574f3gywme
MAPPING THE SHORES OF THE BROWN DWARF DESERT. IV. OPHIUCHUS
2015
Astrophysical Journal
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2015 pre-print arXiv:1509.05217v1 fatcat:uazwyjjtczg3bpkmyqzbrls3ei
We find that 43+/-6% of the 114 stars in our survey have stellar mass companions between 1.3-780AU, while 7 (+8 -5)% host brown dwarf companions in the same interval. ...
This phenomenon has been labelled the "brown dwarf desert". ...
We detect no additional brown dwarf companions to our targets. ...
doi:10.1088/0004-637x/813/2/83
fatcat:t6apmt5iajal5hs6ubieb4feyq
Evidence-based Emergency Medicine. Edited by Brian H. Rowe, Eddy S. Lang, Michael Brown, Debra Houry, David H. Newman, Peter C. Wyer. 2009. Published by Wiley-Blackwell. Clothbound, 658 pp. US$275.00
2009
CJEM: Canadian Journal of Emergency Medical Care
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BROWN DWARFS IN YOUNG MOVING GROUPS FROM PAN-STARRS1. I. AB DORADUS
2016
Astrophysical Journal
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We also find four field brown dwarfs unassociated with the AB Dor Moving Group, three of which have INT-G gravity classification. ...
Substellar members of young (≲150 Myr) moving groups are valuable benchmarks to empirically define brown dwarf evolution with age and to study the low-mass end of the initial mass function. ...
C. ...
doi:10.3847/0004-637x/821/2/120
fatcat:6u3uxmzuzrhtrdppabpvbivtgy
Fundamental Properties of Low-Mass Stars and Brown Dwarfs
[article]
2008
arXiv
pre-print
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Precise measurements of the fundamental properties of low-mass stars and brown dwarfs are key to understanding the physics underlying their formation and evolution. ...
Thus, measuring the differential lithium depletion between B and C will provide a uniquely discriminating test of theoretical models. ...
The age of the system would have to be notably younger than the gyro age to ameliorate the luminosity disagreement. (2) Effective temperatures derived from evolutionary models for HD 130948B and C are ...
arXiv:0810.1054v1
fatcat:uihli5jiazbppjwm25hdebqr34
Dipole-phonon quantum logic with alkaline-earth monoxide and monosulfide cations
[article]
2020
arXiv
pre-print
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(c) ω (1) mol = ω (2) mol + 2π · 20 kHz and |ψ mol (0) = 2 3 |ef + 1 3 e iπ/4 |fe . ...
For the second method, shown in (c) and (d), we adiabatically vary the difference in molecular splitting. ...
arXiv:2008.09201v1
fatcat:2ukh3l6575grrbpblj5el3w3bi
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