Results 81 to 90 of about 6,149,165 (381)

The puzzling orbital period evolution of the LMXB AX J1745.6−2901 [PDF]

, 2015
The orbital period evolution of X-ray binaries provides fundamental clues to understanding mechanisms of angular momentum transfer and loss in these systems.
G. Ponti, K. De, T. Muñoz-Darias, L. Stella, K. Nandra   +4 more
semanticscholar   +1 more source

Did the ancient egyptians record the period of the eclipsing binary Algol - the Raging one?

, 2013
The eclipses in binary stars give precise information of orbital period changes. Goodricke discovered the 2.867 days period in the eclipses of Algol in the year 1783. The irregular orbital period changes of this longest known eclipsing binary continue to
Aslan, Bakir, Baron, Bastian, Batchelet, Baxendell, Biermann, Clagett, Clagett, Csizmadia, Dean, Demaree, Frieboes-Conde, Goodricke, Gradshteyn, Hadrava, Hall, Hardy, Heck, Helck, Hempel, Hoffleit, J. Lehtinen, J. Lyytinen, J. Toivari-Viitala, Jetsu, Jetsu, Jetsu, Jetsu, Jetsu, Jetsu, Krauss, Krauss, Kwee, L. Jetsu, Leitz, Leitz, Leitz, Lichtheim, Lull, Neugebauer, P. Kajatkari, Renson, S. Porceddu, Sarna, Sethe, Smith, Soderhjelm, Soderhjelm, Stephenson, T. Markkanen, Tanner, Turner, Zavala, Zavala   +54 more
core   +1 more source

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

Advanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu, Jochen Vanderspikken, Paola Mantegazza, Stefania Moro, Mouna Hamid, Sigurd Mertens, Niko Van den Brande, Laurence Lutsen, Vincent Lemaur, David Beljonne, Giovanni Costantini, Koen Vandewal, Bruno Van Mele, Wouter Maes, Bart Goderis   +14 more
wiley   +1 more source

Long-term periodicity in LSI+61303 as beat frequency between orbital and precessional rate

, 2013
Context: In the binary system LSI+61303 the peak flux density of the radio outburst, which is related to the orbital period of 26.4960 +/- 0.0028d, exibits a modulation of 1667 +/- 8 d.
Jaron, F., Massi, M.
core   +1 more source

Constraining the period of the ringed secondary companion to the young star J1407 with photographic plates [PDF]

, 2018
Context. The 16 Myr old star 1SWASP J140747.93-394542.6 (V1400 Cen) underwent a series of complex eclipses in May 2007, interpreted as the transit of a giant Hill sphere filling debris ring system around a secondary companion, J1407b.
Birkby, J.L., Cameron, D.A., Grindlay, J.E., Haislip, J.B., Hambsch, F.-J., Hills, K., Hudec, R., Kenworthy, M.A., Kouprianov, V.V., Kuhn, R.B., Lund, M.B., Mamajek, E.E., Mellon, S.N., Mentel, R.T., Reichart, D.E., Rodriguez, J.E., Schrimpf, A., Scott, E.L., Tan, T.-G.   +18 more
core   +3 more sources

Periodic-Orbit Theory

, 1993
CYCLER Paper ...
openaire   +2 more sources

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

High speed photometry of faint Cataclysmic Variables: IV. V356 Aql, Aqr1, FIRST J1023+0038, Ha 0242-2802, GI Mon, AO Oct, V972 Oph, SDSS 0155+00, SDSS 0233+00, SDSS 1240-01, SDSS 1556-00, SDSS 2050-05, FH Ser

, 2004
We present results from high speed photometry of a further thirteen faint cataclysmic variables. V356 Aql (Nova Aql 1936) shows flare-like outbursts with recurrence time scales ~ 3000 s, but no coherent periodicities. Aqr1 is an intermediate polar with a
Araujo-Betancor, Berg, Bond, Brian Warner, Croom, Downes, Dubkova, Duerbeck, Gill, Honeycutt, Howell, Howell, Kholopov, Kovetz, Liu, Magaretha L. Pretorius, Mason, Mason, Mukadam, O'Donoghue, Patrick A. Woudt, Patterson, Prialnik, Ringwald, Robinson, Roelofs, Szkody, Szkody, Szkody, Tamm, Thorstensen, Tovmassian, Vogt, von Gessner, Warner, Warner, Warner, Warner, Williams, Woudt, Woudt, Woudt, Woudt, Woudt, Zwitter   +44 more
core   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source