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The findings of a nine orbit calibration plan carried out during HST Cycle 15, to fully determine the NICMOS camera 2 (2.0 micron) polarization calibration to high accuracy, are reported. Recently Ueta et al. and Batcheldor et al. have…

In scattering experiments, high-virtuality partons, i.e., quarks and gluons, initiate a series of additional parton emissions to create collimated sprays of particles known as jets. This paper presents a measurement of the Lund jet plane…

Nuclear Experiment · Physics 2026-02-11 CMS Collaboration

The linear polarization images of the jet in the giant elliptical galaxy M87 have previously been observed with Very Long Baseline Array at 7 mm. They exhibit a complex polarization structure surrounding the optically thick and compact…

High Energy Astrophysical Phenomena · Physics 2021-12-08 Jongho Park , Keiichi Asada , Masanori Nakamura , Motoki Kino , Hung-Yi Pu , Kazuhiro Hada , Evgeniya V. Kravchenko , Marcello Giroletti

Measurement of the brightness temperature of extended radio emission demands knowledge of the gain (or aperture efficiency) of the telescope and measurement of the polarized component of the emission requires correction for the conversion…

Instrumentation and Methods for Astrophysics · Physics 2016-10-12 Xuan Du , Thomas L. Landecker , Timothy Robishaw , Andrew D. Gray , Kevin A. Douglas , Maik Wolleben

The XL-Calibur balloon-borne hard X-ray polarimetry mission comprises a Compton-scattering polarimeter placed at the focal point of an X-ray mirror. The polarimeter is housed within a BGO anticoincidence shield, which is needed to mitigate…

Particle acceleration mechanisms in supermassive black hole jets, such as shock acceleration, magnetic reconnection, and turbulence, are expected to have observable signatures in the multi-wavelength polarization properties of blazars. The…

High Energy Astrophysical Phenomena · Physics 2022-10-26 Laura Di Gesu , Immacolata Donnarumma , Fabrizio Tavecchio , Ivan Agudo , Thibault Barnounin , Nicolò Cibrario , Niccolò Di Lalla , Alessandro Di Marco , Juan Escudero , Manel Errando , Svetlana G. Jorstad , Dawoon Kim , Pouya M. Kouch , Elina Lindfors , Ioannis Liodakis , Grzegorz Madejski , Herman L. Marshall , Alan P. Marscher , Riccardo Middei , Fabio Muleri , Ioannis Myserlis , Michela Negro , Nicola Omodei , Luigi Pacciani , Alessandro Paggi , Matteo Perri , Simonetta Puccetti , Lucio A. Antonelli , Matteo Bachetti , Luca Baldini , Wayne H. Baumgartner , Ronaldo Bellazzini , Stefano Bianchi , Stephen D. Bongiorno , Raffaella Bonino , Alessandro Brez , Niccolò Bucciantini , Fiamma Capitanio , Simone Castellano , Elisabetta Cavazzuti , Stefano Ciprini , Enrico Costa , Alessandra De Rosa , Ettore Del Monte , Victor Doroshenko , Michal Dovčiak , Steven R. Ehlert , Teruaki Enoto , Yuri Evangelista , Sergio Fabiani , Riccardo Ferrazzoli , Javier A. Garcia , Shuichi Gunji , Kiyoshi Hayashida , Jeremy Heyl , Wataru Iwakiri , Vladimir Karas , Takao Kitaguchi , Jeffery J. Kolodziejczak , Henric Krawczynski , Fabio La Monaca , Luca Latronico , Simone Maldera , Alberto Manfreda , Frédéric Marin , Andrea Marinucci , Francesco Massaro , Giorgio Matt , Ikuyuki Mitsuishi , Tsunefumi Mizuno , C. -Y. Ng , Stephen L. O'Dell , Chiara Oppedisano , Alessandro Papitto , George G. Pavlov , Abel L. Peirson , Melissa Pesce-Rollins , Pierre-Olivier Petrucci , Maura Pilia , Andrea Possenti , Juri Poutanen , Brian D. Ramsey , John Rankin , Ajay Ratheesh , Roger W. Romani , Carmelo Sgrò , Patrick Slane , Paolo Soffitta , Gloria Spandre , Toru Tamagawa , Roberto Taverna , Yuzuru Tawara , Allyn F. Tennant , Nicolas E. Thomas , Francesco Tombesi , Alessio Trois , Sergey Tsygankov , Roberto Turolla , Jacco Vink , Martin C. Weisskopf , Kinwah Wu , Fei Xie , Silvia Zane

Recent results of the ESA Planck satellite have confirmed the existence of some anomalies in the statistical distribution of the cosmic microwave background (CMB) anisotropies. One of the most intriguing anomalies is the Cold Spot, firstly…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 R. Fernández-Cobos , P. Vielva , E. Martínez-González , M. Tucci , M. Cruz

In many scenarios, unmanned aerial vehicles (UAVs), aka drones, need to have the capability of autonomous flying to carry out their mission successfully. In order to allow these autonomous flights, drones need to know their location…

Robotics · Computer Science 2022-01-26 Alireza Famili , Angelos Stavrou , Haining Wang , Jung-Min , Park

The Primordial Inflation Polarization Explorer (PIPER) is a stratospheric balloon payload to measure polarization of the cosmic microwave background. Twin telescopes mounted within an open-aperture bucket dewar couple the sky to bolometric…

Instrumentation and Methods for Astrophysics · Physics 2024-06-19 A. Kogut , T. Essinger-Hileman , D. Fixsen , L. Lowe , P. Mirel , E. Switzer , E. Wollack

We present the first high resolution polarization map of the ultraviolet emission from the outer jet in M87. The data were obtained by the Faint Object Camera (FOC) on the Hubble Space Telescope. The polarization map has a resolution of 0.2…

Astrophysics · Physics 2015-06-24 R. C. Thomson , D. R. T. Robinson , N. R. Tanvir , C. D. Mackay , A. Boksenberg

We have observed 123 pulsars with periods longer than 0.1 seconds in the Meterwavelength Single-pulse Polarimetric Emission Survey. In this work a detailed study of polarization behaviour of these pulsars have been carried out. We were able…

High Energy Astrophysical Phenomena · Physics 2023-08-02 Dipanjan Mitra , George I. Melikidze , Rahul Basu

We present recent measurements of the longitudinal double-spin asymmetry A_LL for the inclusive production of jets at midrapidity in polarized proton-proton collisions at sqrt(s)=200GeV. The data amount to an integrated luminosity of 3pb-1…

High Energy Physics - Experiment · Physics 2007-06-20 Katarzyna Kowalik

A new polarization survey of the northern sky at 1.41 GHz is presented. The observations were carried out using the 25.6m telescope at the Dominion Radio Astrophysical Observatory in Canada, with an angular resolution of 36 arcmin. The data…

Astrophysics · Physics 2009-11-11 M. Wolleben , T. L. Landecker , W. Reich , R. Wielebinski

Signals from radio pulsars show a wavelength-dependent delay due to dispersion in the interstellar plasma. At a typical observing wavelength, this delay can vary by tens of microseconds on five-year time scales, far in excess of signals of…

Aims: We aimed to monitor the optical linear polarimetric signal of the magnetized, rapidly rotating M8.5 dwarf TVLM 513$-$46546. Methods: $R$- and $I$-band linear polarimetry images were collected with the ALFOSC instrument of the 2.56-m…

Solar and Stellar Astrophysics · Physics 2015-08-19 P. A. Miles-Páez , M. R. Zapatero Osorio , E. Pallé

We present a practical scheme for measurement-device-independent polarization shift keying using two state polarization encoding. Most of the previous work on optical free space laser communications through the atmosphere was concentrated…

Instrumentation and Detectors · Physics 2016-11-25 Ram Soorat , Ashok Vudayagiri

Precise measurements of cosmic microwave background polarization require rigorous control of instrumental systematics. For the South Pole Telescope's third-generation camera (SPT-3G), accurate characterization of the beam is critical for…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-09 T. de Haan , M. Archipley , N. Huang , A. J. Anderson , B. Ansarinejad , L. Balkenhol , D. R. Barron , K. Benabed , A. N. Bender , B. A. Benson , F. Bianchini , L. E. Bleem , S. Bocquet , F. R. Bouchet , L. Bryant , E. Camphuis , M. G. Campitiello , J. E. Carlstrom , J. Carron , C. L. Chang , P. Chaubal , P. M. Chichura , A. Chokshi , T. -L. Chou , A. Coerver , T. M. Crawford , C. Daley , K. R. Dibert , M. A. Dobbs , M. Doohan , A. Doussot , D. Dutcher , W. Everett , C. Feng , K. R. Ferguson , N. C. Ferree , K. Fichman , A. Foster , S. Galli , A. E. Gambrel , R. W. Gardner , F. Ge , N. Goeckner-Wald , R. Gualtieri , F. Guidi , S. Guns , N. W. Halverson , E. Hivon , A. Y. Q. Ho , G. P. Holder , W. L. Holzapfel , J. C. Hood , A. Hryciuk , F. Keruzore , A. R. Khalife , L. Knox , M. Korman , K. Kornoelje , C. -L. Kuo , K. Levy , Y. Li , A. E. Lowitz , C. Lu , G. P. Lynch , T. J. Maccarone , A. S. Maniyar , E. S. Martsen , F. Menanteau , M. Millea , J. Montgomery , Y. Nakato , T. Natoli , G. I. Noble , Y. Omori , A. Ouellette , Z. Pan , P. Paschos , K. A. Phadke , A. W. Pollak , K. Prabhu , W. Quan , M. Rahimi , A. Rahlin , C. L. Reichardt , M. Rouble , J. E. Ruhl , E. Schiappucci , A. C. Silva Oliveira , A. Simpson , J. A. Sobrin , A. A. Stark , J. Stephen , C. Tandoi , B. Thorne , C. Trendafilova , C. Umilta , J. D. Vieira , A. G. Vieregg , A. Vitrier , Y. Wan , N. Whitehorn , W. L. K. Wu , M. R. Young , J. A. Zebrowski

In the standard model of electroweak interactions the positrons from the decay of polarized positive muons are mainly longitudinally polarized. The measurement of the two transverse polarization components PT1 and PT2 is a sensitive tool to…

High Energy Physics - Experiment · Physics 2007-05-23 Kai-U. Koehler