Zobrazeno 1 - 10
of 222
pro vyhledávání: '"Jura, M. P."'
Ultraviolet and optical spectra of the hydrogen-dominated atmosphere white dwarf star G238-44 obtained with FUSE, Keck/HIRES, HST/COS, and HST/STIS reveal ten elements heavier than helium: C, N, O, Mg, Al, Si, P, S, Ca, and Fe. G238-44 is only the th
Externí odkaz:
http://arxiv.org/abs/2211.02673
Publikováno v:
Condens. Matter Phys., 2021, vol. 24, No. 2, 23301
The properties of ideal tri-functional dendrimers with forty-five, ninety-three and one hundred and eighty-nine branches are investigated. Three methods are employed to calculate the mean-square radius of gyration, $g$-ratios, asphericity, shape para
Externí odkaz:
http://arxiv.org/abs/2106.13131
Autor:
Klein, Beth, Blouin, Simon, Romani, Diego, Zuckerman, B., Melis, Carl, Xu, Siyi, Dufour, P., Genest-Beaulieu, C., Bédard, A., Jura, M.
We report distinctive core profiles in the strongest optical helium line, He I 5876, from high-resolution high-sensitivity observations of spectral type DB white dwarfs. By analyzing a sample of 40 stars from Keck/HIRES and VLT/UVES, we find the core
Externí odkaz:
http://arxiv.org/abs/2006.07483
Autor:
Andrews, R. W., Jones, C., Reed, M. D., Jones, A. M., Ha, S. D., Jura, M. P., Kerckhoff, J., Levendorf, M., Meenehan, S., Merkel, S. T., Smith, A., Sun, B., Weinstein, A. J., Rakher, M. T., Ladd, T. D., Borselli, M. G.
Publikováno v:
Nature Nanotechnology 14, 747-750 (2019)
Quantum computation requires qubits that satisfy often-conflicting criteria, including scalable control and long-lasting coherence. One approach to creating a suitable qubit is to operate in an encoded subspace of several physical qubits. Though such
Externí odkaz:
http://arxiv.org/abs/1812.02693
Autor:
Xu, S., Rappaport, S., van Lieshout, R., Vanderburg, A., Gary, B., Hallakoun, N., Ivanov, V. D., Wyatt, M. C., DeVore, J., Bayliss, D., Bento, J., Bieryla, A., Cameron, A., Cann, J. M., Croll, B., Collins, K. A., Dalba, P. A., Debes, J., Doyle, D., Dufour, P., Ely, J., Espinoza, N., Joner, M. D., Jura, M., Kaye, T., McClain, J. L., Muirhead, P., Palle, E., Panka, P. A., Provencal, J., Randall, S., Rodriguez, J. E., Scarborough, J., Sefako, R., Shporer, A., Strickland, W., Zhou, G., Zuckerman, B.
White dwarf WD 1145+017 is orbited by several clouds of dust, possibly emanating from actively disintegrating bodies. These dust clouds reveal themselves through deep, broad, and evolving transits in the star's light curve. Here, we report two epochs
Externí odkaz:
http://arxiv.org/abs/1711.06960
Autor:
Arneson, R. A., Gehrz, R. D., Woodward, C. E., Helton, L. A., Shenoy, D., Evans, A., Keller, L. D., Hinkle, K. H., Jura, M., Lebzelter, T., Lisse, C. M., Rushton, M. T., Mizrachi, J.
We present a SOFIA FORCAST grism spectroscopic survey to examine the mineralogy of the circumstellar dust in a sample of post-asymptotic giant branch yellow supergiants that are believed to be the precursors of planetary nebulae. Our mineralogical mo
Externí odkaz:
http://arxiv.org/abs/1706.00445
Publikováno v:
ApJL, 836, L7 (2017)
The Kuiper Belt of our solar system is a source of short-period comets that may have delivered water and other volatiles to Earth and the other terrestrial planets. However, the distribution of water and other volatiles in extrasolar planetary system
Externí odkaz:
http://arxiv.org/abs/1702.02868
We report high-resolution spectroscopic observations of WD 1145+017 -- a white dwarf that recently has been found to be transitted by multiple asteroid-sized objects within its tidal radius. We have discovered numerous circumstellar absorption lines
Externí odkaz:
http://arxiv.org/abs/1511.05973
Autor:
Jura, M.
The abundance anomalies in lambda Boo stars are popularly explained by element-specific mass inflows at rates that are much greater than empirically-inferred bounds for interstellar accretion. Therefore, a lambda Boo star's thin outer envelope must d
Externí odkaz:
http://arxiv.org/abs/1509.04672
Autor:
Reed, M. D., Maune, B. M., Andrews, R. W., Borselli, M. G., Eng, K., Jura, M. P., Kiselev, A. A., Ladd, T. D., Merkel, S. T., Milosavljevic, I., Pritchett, E. J., Rakher, M. T., Ross, R. S., Schmitz, A. E., Smith, A., Wright, J. A., Gyure, M. F., Hunter, A. T.
Publikováno v:
Phys. Rev. Lett. 116, 110402 (2016)
We demonstrate improved operation of exchange-coupled semiconductor quantum dots by substantially reducing the sensitivity of exchange operations to charge noise. The method involves biasing a double-dot symmetrically between the charge-state anti-cr
Externí odkaz:
http://arxiv.org/abs/1508.01223