Zobrazeno 1 - 10
of 572
pro vyhledávání: '"Walker, Sean"'
Autor:
Fesen, Robert A., Drechsler, Marcel, Strottner, Xavier, Falls, Bray, Sainty, Yann, Martino, Nicolas, Galli, Richard, Ludgate, Mathew, Blauensteiner, Markus, Reich, Wolfgang, Walker, Sean, di Cicco, Dennis, Mittelman, David, Morgan, Curtis, Kaeouach, Aziz Ettahar, Rupert, Justin, Benkhaldoun, Zouhair
Deep optical emission-line images are presented for nine known plus three new Galactic supernova remnants (SNRs), all but one having at least one angular dimension greater than one degree. Wide-field images taken in H$\alpha$ and [O III] $\lambda$500
Externí odkaz:
http://arxiv.org/abs/2403.00317
Autor:
Fesen, Robert A., Kimeswenger, Stefan, Shull, J. Michael, Drechsler, Marcel, Strottner, Xavier, Sainty, Yann, Falls, Bray, Vergnes, Christophe, Martino, Nicolas, Walker, Sean, Rupert, Justin
Drechsler et al. (2023) reported the unexpected discovery of a 1.5 degree long [O III] emission nebula 1.2 degrees southeast of the M31 nucleus. Here we present additional images of this large emission structure, called SDSO, along with radial veloci
Externí odkaz:
http://arxiv.org/abs/2307.06308
Autor:
Bergeron, E. Annelise, Sfigakis, F., Shi, Y., Nichols, George, Klipstein, P. C., Elbaroudy, A., Walker, Sean M., Wasilewski, Z. R., Baugh, J.
Publikováno v:
Applied Physics Letters 122, 012103 (2023)
We report on transport characteristics of field effect two-dimensional electron gases (2DEG) in surface indium antimonide quantum wells. The topmost 5 nm of the 30 nm wide quantum well is doped and shown to promote the formation of reliable, low resi
Externí odkaz:
http://arxiv.org/abs/2209.08193
Autor:
Walker, Sean M., Patel, Tarun, Okamoto, Junichi, Langenberg, Deler, Bergeron, E. Annelise, Gao, Jingjing, Luo, Xuan, Lu, Wenjian, Sun, Yuping, Tsen, Adam W., Baugh, Jonathan
The 1T polytype of TaS$_\textrm{2}$ has been studied extensively as a strongly correlated system. As 1T-TaS$_\textrm{2}$ is thinned towards the 2D limit, its phase diagram shows significant deviations from that of the bulk material. Optoelectronic ma
Externí odkaz:
http://arxiv.org/abs/2112.09240
Autor:
Walker, Sean
Publikováno v:
Sky & Telescope. Jun2024, Vol. 147 Issue 6, p62-67. 6p.
Autor:
Walker, Sean1 swalke47@utm.edu, Davis, Lajuan2 ldavis91@utm.edu
Publikováno v:
Journal of International Business Disciplines. May2024, Vol. 19 Issue 1, p22-37. 16p.
Autor:
Fesen, Robert A., Drechsler, Marcel, Weil, Kathryn E., Strottner, Xavier, Raymond, John C., Rupert, Justin, Milisavljevic, Dan, Subrayan, Bhagya M., di Cicco, Dennis, Walker, Sean, Mittelman, David, Ludgate, Mathew
Galactic supernova remnants (SNRs) with angular dimensions greater than a few degrees are relatively rare, as are remnants located more than ten degrees off the Galactic plane. Here we report a UV and optical investigation of two previously suspected
Externí odkaz:
http://arxiv.org/abs/2102.12599
Autor:
Fesen, Robert A., Weil, Kathryn E., Raymond, John C., Huet, Laurent, Rusterholz, Martin, di Cicco, Dennis, Mittelman, David, Walker, Sean, Drechsler, Marcel, Faworski, Sheldon
Wide-field H-alpha images of the Galactic plane have revealed a new supernova remnant (SNR) nearly three degrees in diameter centred at l = 107.0, b = +9.0. Deep and higher resolution H-alpha and [O III] 5007 Ang images show dozens of H-alpha filamen
Externí odkaz:
http://arxiv.org/abs/2008.05620
Two Tiny Cameras from QHYCCD: We test a pair of monochrome cameras created for solar system imagers.
Autor:
Walker, Sean
Publikováno v:
Sky & Telescope. Jan2024, Vol. 147 Issue 1, p66-69. 4p.
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