Results 61 to 70 of about 5,433 (258)

Cherenkov Telescope Array Observatory: Die Zukunft der Gammaastronomie

Physik in unserer Zeit, EarlyView.
Im Jahr 1989 hat das Wipple‐Observatorium die erste Quelle hochenergetischer Gammastrahlung entdeckt. 2002 waren dann sechs Quellen bekannt, 2024 schon mehr als 300. Und das ist immer noch lediglich die Spitze des Eisbergs in der jungen Geschichte der Gammaastronomie.
Daniela Hadasch, Daniel Mazin
wiley   +1 more source

The Telescope Calibration of the Imaging X-Ray Polarimetry Explorer

The Astronomical Journal
Fifty years after the very first sounding rocket measurement of cosmic X-ray polarization, the Imaging X-ray Polarimetry Explorer (IXPE) mission has effectively opened a new window into the X-ray sky.
Brian D. Ramsey, Jeffery K. Kolodziejczak, Wayne H. Baumgartner, Nicholas E. Thomas, Stephen D. Bongiorno, Philip Kaaret, Stephen L. O’Dell, Allyn Tennant, Martin C. Weisskopf, Sergio Fabiani, Fabio Muleri, Paolo Soffitta, Enrico Costa, Alessandro Di Marco, Riccardo Ferrazzoli, Fabio La Monaca, John Rankin, Ajay Ratheesh, Alessio Trois, Luca Baldini, Ronaldo Bellazzini, Alessandro Brez, Luca Latronico, Leonardo Lucchesi, Alberto Manfreda, Massimo Minuti, Leonardo Orsini, Michele Pinchera, Carmelo Sgrò, Gloria Spandre   +29 more
doaj   +1 more source

Long‐Range Time‐Correlated Single‐Photon Counting Lidar 3D‐Reconstruction From a Moving Ground Vehicle

Journal of Field Robotics, EarlyView.
ABSTRACT Time‐correlated single‐photon counting (TCSPC) lidar enables high‐resolution 3D imaging at kilometer range. While previous works have covered long range TCSPC 3D imaging from either stationary or airborne platforms, this is, to the best of our knowledge, the first attempt that use a moving ground vehicle. Fusing measurements taken at different
Hannes Ovrén, Max Holmberg, Markus Henriksson   +2 more
wiley   +1 more source

Study of Silicon Photomultipliers for the GRIPS Calorimeter Module

Acta Polytechnica, 2013
GRIPS is a proposed gamma-ray (200 keV to 80 MeV) astronomy mission, which incorporates a pair-creation and Compton scattering telescope, along with X-ray and infrared telescopes.
Alexei Ulyanov, Lorraine Hanlon, Sheila McBreen, Suzanne Foley   +3 more
doaj  

GRB 170519A: Thermal Radiation in an X-Ray Flare and Decaying Magnetic Fields for the Early-time Afterglow

The Astrophysical Journal
GRB 170519A was discovered by the Swift Burst Alert Telescope (BAT) and then observed by the Swift X-Ray Telescope, Swift UltraViolet and Optical Telescope, and ground-based telescopes.
Zi-Min Zhou, Liang-Jun Chen, Rui-Quan Li, Xiang-Gao Wang, Xing-Ling, Li, En-Wei Liang, WeiKang Zheng, Alexei V. Filippenko   +7 more
doaj   +1 more source

Single‐Molecule FRET‐Tracking of InlB‐Activated MET Receptors in Living Cells

Small, EarlyView.
Single‐molecule FRET and single‐particle tracking reveal how ligand binding drives dimerization and activation of the MET receptor tyrosine kinase in living cells. Single‐molecule FRET reports on the lifetime of the (MET:InlB)2 complex. Distinct diffusion coefficients and modes of monomeric and dimeric receptor complexes uncover nanometer‐scale ...
Yunqing Li, Marina S. Dietz, Hans‐Dieter Barth, Hartmut H. Niemann, Mike Heilemann   +4 more
wiley   +1 more source

Polarization vision and the physiological basis for trichromatic vision in Philaenus spumarius: Understanding host‐seeking behaviour in insect vectors for Xylella fastidiosa control

Annals of Applied Biology, EarlyView.
We investigated the role of vision in host‐seeking behaviour by Philaenus spumarius, the main European vector of Xylella fastidiosa, through an integrated anatomical, optical, physiological, and behavioural study. Our data highlight that the spittlebug uses visual cues, including polarized light, which may aid in detecting the polarized reflections ...
Domen Lazar, Elizabeth Clark, Andrej Meglič, Daniele Cornara, Gregor Belušič   +4 more
wiley   +1 more source

An Extensive Census ofHubble Space TelescopeCounterparts toChandraX‐Ray Sources in the Globular Cluster 47 Tucanae. II. Time Series and Analysis [PDF]

, 2003
P. D. Edmonds, Ronald L. Gilliland, C. O. Heinke, J. E. Grindlay   +3 more
openalex   +1 more source

Emerging Techniques in Minimally Invasive Surgery in Hematologic Malignancies

European Journal of Haematology, EarlyView.
ABSTRACT Hematologic malignancies represent the most common cancers in children. While the mainstays of treatment are chemotherapy and potentially hematopoietic stem cell transplant, minimally invasive surgery (MIS) has a role in the diagnosis and management of complications related both to disease and therapy as well as common pediatric surgical ...
Alejandro Chara, Katlyn G. McKay, Harold N. Lovvorn III, Joseph C. Fusco   +3 more
wiley   +1 more source

Multiwavelength Study of a Hyperluminous X-Ray Source near NGC 6099: A Strong IMBH Candidate

The Astrophysical Journal
We report on the intriguing properties of a variable X-ray source projected at the outskirts of the elliptical galaxy NGC 6099 ( d  ≈ 139 Mpc). If truly located near NGC 6099, this is a hyperluminous X-ray source that reached an X-ray luminosity L _X ...
Yi-Chi Chang, Roberto Soria, Albert K. H. Kong, Alister W. Graham, Kirill A. Grishin, Igor V. Chilingarian   +5 more
doaj   +1 more source