Results 21 to 30 of about 1,373 (198)

N‐Alkoxysulfurdiimide Reagents for the One‐Step Modular Synthesis of Primary Sulfonimidamides

Angewandte Chemie, EarlyView.
N‐Alkoxysulfurdiimide reagents when combined with organometallic reagents lead directly to primary sulfonimidamide products. The reactions are broad in scope, encompassing aryl, heteroaryl, and alkyl carbon substituents. The reactivity of the N‐alkoxysulfurdiimide reagents can be correlated with the electron‐withdrawing ability of the N‐substituent ...
Suzanne E. Davison, Jonathan A. Andrews, Agamemnon E. Crumpton, Mireia Sidera Portela, Michael A. Clegg, Damien Valette, Michael C. Willis   +6 more
wiley   +2 more sources

GRBs and Lobster Eye X-Ray Telescopes [PDF]

EAS Publications Series, 2013
A large majority of GRBs exhibit X-ray emission. In addition, a dedicated separate group of GRB, the XRFs, exists which emission dominates in the X-ray spectral range. And the third group of GRB related objects (yet hypothetical) are the group of off-axis observed GRBs (orphan afterglows).
R. Hudec, L. Pina, V. Marsikova, A. Inneman   +3 more
openaire   +1 more source

Handling the Background in IXPE Polarimetric Data

The Astronomical Journal, 2023
Imaging X-ray Polarimetry Explorer (IXPE) is a Small Explorer mission by NASA and Agenzia Spaziale Italiana, launched on 2021 December 9, dedicated to investigating X-ray polarimetry allowing angular-, time-, and energy-resolved observations in the 2–8 ...
Alessandro Di Marco, Paolo Soffitta, Enrico Costa, Riccardo Ferrazzoli, Fabio La Monaca, John Rankin, Ajay Ratheesh, Fei Xie, Luca Baldini, Ettore Del Monte, Steven R. Ehlert, Sergio Fabiani, Dawoon E. Kim, Fabio Muleri, Stephen L. O’Dell, Brian D. Ramsey, Alda Rubini, Carmelo Sgrò, Stefano Silvestri, Allyn F. Tennant, Martin C. Weisskopf   +20 more
doaj   +1 more source

Unbiased CLEAN for STIX in Solar Orbiter

The Astrophysical Journal Supplement Series, 2023
CLEAN is an iterative deconvolution method for radio and hard-X-ray solar imaging. In a specific step of its pipeline, CLEAN requires the convolution between an idealized version of the instrumental point-spread function (PSF), and a map collecting point
Emma Perracchione, Fabiana Camattari, Anna Volpara, Paolo Massa, Anna Maria Massone, Michele Piana   +5 more
doaj   +1 more source

Offline assembly of the lobster-eye x-ray telescope based on optical reference transfer [PDF]

AIP Advances
To address the difficulty of focal alignment and optical axis calibration of lobster-eye x-ray telescopes in the absence of an x-ray vacuum environment, an offline visible-light alignment method based on optical reference transfer under atmospheric ...
Yifan Chen, Zhengda Li, Chengbin Wang, Chen Zhang, Zhixing Ling, Xiaohao Ma, Yixiao Han, Yanfeng Dai, Huaqing Cheng, Yujun Tang, Yulong Xue, Zhiwei Cheng, Wei Fu, Xiaojin Sun   +13 more
doaj   +1 more source

Small Spacecraft Payload Study for X-ray Astrophysics including GRB Science

Universe, 2022
This paper presents microsatellite spacecraft payload study for prompt observation of transient astrophysical objects in X-ray energy range. By combining telescope concepts and miniaturized detectors, the small spacecraft will be able to probe the X-ray ...
Vladimír Dániel, Veronika Maršíková, Rene Hudec, Ladislav Pína, Adolf Inneman, Karel Pelc   +5 more
doaj   +1 more source

The swift x-ray telescope: status and performance [PDF]

SPIE Proceedings, 2007
9 pages, 14 ...
Burrows, D. N., Kennea, J. A., Morris, D. C., Pagani, C., Racusin, J., Abbey, A. F., Beardmore, A., Evans, P. A., Goad, M., Godet, O., Osborne, J. P., Page, K. L., Starling, R. L. C., Tyler, L. G., Willingale, R., Campana, S., Chincarini, G., Moretti, A., Romano, P., Tagliaferri, G., Capalbi, M., Giommi, P., Perri, M., Tamburelli, F., Cusumano, G., Hill, J. E.   +25 more
openaire   +3 more sources

X-ray Data Analysis to Search for Magnetar Candidates in the Galactic Plane

Journal of Astronomy and Space Sciences, 2018
We report on our Galactic plane searches for magnetars in the archival Chandra X-ray Observatory (CXO) data. We summarize the properties of known magnetars and use them to establish a procedure for magnetar searches.
Woochan Park, Hongjun An
doaj   +1 more source

ixpeobssim: A simulation and analysis framework for the imaging X-ray polarimetry explorer

SoftwareX, 2022
ixpeobssim is a simulation and analysis framework specifically developed for the Imaging X-ray Polarimetry Explorer (IXPE). Given a source model and the response functions of the telescopes, it is designed to produce realistic simulated observations, in ...
Luca Baldini, Niccolò Bucciantini, Niccolò Di Lalla, Steven Ehlert, Alberto Manfreda, Michela Negro, Nicola Omodei, Melissa Pesce-Rollins, Carmelo Sgrò, Stefano Silvestri   +9 more
doaj   +1 more source

Arcus x-ray telescope performance and alignment

UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXIII, 2023
submitted to SPIE UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXIII (2023)
Günther, Hans Moritz, Cheimets, Peter, Miller, Eric D., DeRoo, Casey, Smith, Randall K., Ptak, Andrew, Heilmann, Ralf K.   +6 more
openaire   +2 more sources