Results 51 to 60 of about 6,061,876 (188)

Searching for Axion-Like Particles with X-ray Polarimeters

Galaxies, 2018
X-ray telescopes are an exceptional tool for searching for new fundamental physics. In particular, X-ray observations have already placed world-leading bounds on the interaction between photons and axion-like particles (ALPs).
Francesca Day, Sven Krippendorf
doaj   +1 more source

Vacuum birefringence and X-ray polarimetry in transient magnetars [PDF]

, 2017
Recent optical polarimetry observations of an X-ray dim isolated neutron star, RX J1856.5-3754, showed a first evidence for QED vacuum birefringence induced by a strong magnetic field.
D González-Caniulef, Song, X, S Zane, Wu, K, X Song, R Taverna, R Turolla, González-Caniulef, D, González-Caniulef, D., Wu, K., K Wu, Zane, S, Zane, S., Song, X., Turolla, R, Turolla, R., Taverna, R., Taverna, R   +17 more
core   +1 more source

The X-ray polarimetry window reopens [PDF]

Nature Astronomy, 2020
PolarLight is the first dedicated soft X-ray polarimeter in space since the 1970s and is attempting to reopen this long-awaited window in astronomy, explain Principal Investigator Hua Feng and Ronaldo Bellazzini.
Hua Feng, Ronaldo Bellazzini
openaire   +2 more sources

Galactic X-ray Polarimetry and High-Resolution X-ray Spectroscopy [PDF]

Symposium - International Astronomical Union, 1973
Stellar X-ray spectroscopy and polarimetry are discussed in terms of the source parameters that can be determined through such studies and in terms of the constraints that these studies will place on theoretical models. The spectroscopic and polarimetric results that have been obtained to date are reviewed.
openaire   +1 more source

The Imaging X-ray Polarimetry Explorer (IXPE): Technical Overview [PDF]

, 2018
The Imaging X-ray Polarimetry Explorer (IXPE) will expand the information space for study of cosmic sources, by adding linear polarization to the properties (time, energy, and position) observed in x-ray astronomy.
Marshall, Herman L., Pieraccini, Stefano, Johnson, Sandra, Elsner, Ronald F., Santoli, Francesco, Latronico, Luca, Allen, Zachary, Fabiani, Sergio, Ramsey, Brian D., Borotto, Fabio, Cavazzuti, Elisabetta, Di Persio, Giuseppe, Bygott, H. Kyle, Tortosa, Alessia, Mitsuishi, Ikuyuki, Rubini, Alda, Tobia, Antonino, Baumgartner, Wayne H., Bussinger, Scott, Sgrò, Carmelo, Lalla, Niccolò Di, Muleri, Fabio, Kilaru, Kiranmayee, Matt, Giorgio, Smith, Brian T., Pinchera, Michele, Kalinowski, William, Deininger, William D., Ferrazzoli, Riccardo, Erickson, Jennifer, Tardiola, Marcello, Tamagawa, Toru, Mitchell, Mark A., Ranganathan, Jaganathan, Sciortino, Andrea, Mitchell, Scott, Perri, Matteo, Pilia, Maura, Del Monte, Ettore, Attina, Primo, Giusti, Manuela, Speegle, Chet O., Monte, Ettore Del, Minuti, Massimo, Sgr, Carmelo, Schindhelm, Sarah, Amici, Fabrizio, Baldini, Luca, Pesce-Rollins, Melissa, Mereu, Paolo, Evangelista, Yuri, Zanetti, Davide, Bygott, Kyle, Morbidini, Alfredo, Peterson, Colin, Puccetti, Simonetta, Costa, Enrico, Orsini, Leonardo, Bachetti, Matteo, O'Dell, Stephen L., Masciarelli, James, Citraro, Saverio, Ceccanti, Marco, Soffitta, Paolo, Read, Tim, Weisskopf, Martin C., Negri, Barbara, Allen, D. Zachary, Nasimi, Hikmat, McEachen, Mike, Guy, Larry, Antonelli, L. Angelo, Bongiorno, Stephen D., Allen, D. Zachery, Dietz, Kurtis L., Donnarumma, Immacolata, Brez, Alessandro, Barbanera, Mattia, Di Lalla, Niccolò, Bellazzini, Ronaldo, Trois, Alessio, Bladt, Jeff, Brooks, Thomas, Persio, Giuseppe Di, Sarra, Paolo, Maldera, Simone, Marengo, Marco, Tennant, Allyn F., Kaspi, Victoria M., Foster, Michelle, Osborne, Darren, Kelley, Anthony R., Mosti, Federico, Lefevre, Carlo, Kolodziejczak, Jeffery J., Weddendorf, Bruce, Pentz, Christina, Manfreda, Alberto, Spandre, Gloria, Mulieri, Fabio, Wedmore, Jeff, Piazzolla, Raffaele, Pavelitz, Steven D., Seckar, Chris, Antoniak, Spencer, Romani, Roger W., Gunji, Shuichi, Foster, Michele   +107 more
core   +1 more source

X-Ray Polarimetry of the Accreting Pulsar 1A 0535+262 in the Supercritical State with PolarLight

The Astrophysical Journal, 2023
The X-ray pulsar 1A 0535+262 exhibited a giant outburst in 2020, offering us a unique opportunity for X-ray polarimetry of an accreting pulsar in the supercritical state.
Xiangyun Long, Hua Feng, Hong Li, Ling-Da Kong, Jeremy Heyl, Long Ji, Lian Tao, Fabio Muleri, Qiong Wu, Jiahuan Zhu, Jiahui Huang, Massimo Minuti, Weichun Jiang, Saverio Citraro, Hikmat Nasimi, Jiandong Yu, Ge Jin, Ming Zeng, Peng An, Luca Baldini, Ronaldo Bellazzini, Alessandro Brez, Luca Latronico, Carmelo Sgrò, Gloria Spandre, Michele Pinchera, Paolo Soffitta, Enrico Costa   +27 more
doaj   +1 more source

X-ray polarimetry with the microstrip gas chamber

Journal of Synchrotron Radiation, 1998
A two-dimensional microstrip gas chamber (MSGC) with a 5 cm × 5 cm detection area has been developed. It has 254 anodes and 255 back strips, both with 200 µm pitches. Using this MSGC, linear polarization of X-rays was successfully measured in the energy range 6–14 keV.
Y, Nishi, S, Aoki, A, Ochi, T, Tanimori, T, Takahashi, Y, Ueda, K, Okada   +6 more
openaire   +2 more sources

The enhanced X-ray Timing and Polarimetry mission—eXTP [PDF]

Science China Physics, Mechanics & Astronomy, 2018
In this paper we present the enhanced X-ray Timing and Polarimetry mission - eXTP. eXTP is a space science mission designed to study fundamental physics under extreme conditions of density, gravity and magnetism. The mission aims at determining the equation of state of matter at supra-nuclear density, measuring effects of QED, and understanding the ...
Zhang, ShuangNan, Santangelo, Andrea, Feroci, Marco, Xu, YuPeng, Lu, FangJun, Chen, Yong, Feng, Hua, Zhang, Shu, Brandt, Søren, Hernanz, Margarita, Baldini, Luca, Bozzo, Enrico, Campana, Riccardo, De Rosa, Alessandra, Dong, YongWei, Evangelista, Yuri, Karas, Vladimir, Meidinger, Norbert, Meuris, Aline, Nandra, Kirpal, Pan, Teng, Pareschi, Giovanni, Orleanski, Piotr, Huang, QiuShi, Schanne, Stephane, Sironi, Giorgia, Spiga, Daniele, Svoboda, Jiri, Tagliaferri, Gianpiero, Tenzer, Christoph, Vacchi, Andrea, Zane, Silvia, Walton, Dave, Wang, ZhanShan, Winter, Berend, Wu, Xin, in’ t Zand, Jean J. M., Ahangarianabhari, Mahdi, Ambrosi, Giovanni, Ambrosino, Filippo, Barbera, Marco, Basso, Stefano, Bayer, Jörg, Bellazzini, Ronaldo, Bellutti, Pierluigi, Bertucci, Bruna, Bertuccio, Giuseppe, Borghi, Giacomo, Cao, XueLei, Cadoux, Franck, Campana, Riccardo, Ceraudo, Francesco, Chen, TianXiang, Chen, YuPeng, Chevenez, Jerome, Civitani, Marta, Cui, Wei, Cui, WeiWei, Dauser, Thomas, Del Monte, Ettore, Di Cosimo, Sergio, Diebold, Sebastian, Doroshenko, Victor, Dovciak, Michal, Du, YuanYuan, Ducci, Lorenzo, Fan, QingMei, Favre, Yannick, Fuschino, Fabio, Gálvez, José Luis, Gao, Min, Ge, MingYu, Gevin, Olivier, Grassi, Marco, Gu, QuanYing, Gu, YuDong, Han, DaWei, Hong, Bin, Hu, Wei, Ji, Long, Jia, ShuMei, Jiang, WeiChun, Kennedy, Thomas, Kreykenbohm, Ingo, Kuvvetli, Irfan, Labanti, Claudio, Latronico, Luca, Li, Gang, Li, MaoShun, Li, Xian, Li, Wei, Li, ZhengWei, Limousin, Olivier, Liu, HongWei, Liu, XiaoJing, Lu, Bo, Luo, Tao, Macera, Daniele, Malcovati, Piero, Martindale, Adrian, Michalska, Malgorzata, Meng, Bin, Minuti, Massimo, Morbidini, Alfredo, Muleri, Fabio, Paltani, Stephane, Perinati, Emanuele, Picciotto, Antonino, Piemonte, Claudio, Qu, JinLu, Rachevski, Alexandre, Rashevskaya, Irina, Rodriguez, Jerome, Schanz, Thomas, Shen, ZhengXiang, Sheng, LiZhi, Song, JiangBo, Song, LiMing, Sgro, Carmelo, Sun, Liang, Tan, Ying, Uttley, Phil, Wang, Bo, Wang, DianLong, Wang, GuoFeng, Wang, Juan, Wang, LangPing, Wang, YuSa, Watts, Anna L., Wen, XiangYang, Wilms, Jörn, Xiong, ShaoLin, Yang, JiaWei, Yang, Sheng, Yang, YanJi, Yu, Nian, Zhang, WenDa, Zampa, Gianluigi, Zampa, Nicola, Zdziarski, Andrzej A., Zhang, AiMei, Zhang, ChengMo, Zhang, Fan, Zhang, Long, Zhang, Tong, Zhang, Yi, Zhang, XiaoLi, Zhang, ZiLiang, Zhao, BaoSheng, Zheng, ShiJie, Zhou, YuPeng, Zorzi, Nicola, Zwart, J. Frans   +152 more
openaire   +9 more sources

Moiré Phase Mapping in Twisted Bilayer Liquid Crystals with Reconfigurable Light Polarization States

Advanced Materials, EarlyView.
Twisted bilayer liquid crystals are developed by vertical stacking assembly of two liquid crystals having designer domains and optical properties. These moiré‐symmetry, twisted liquid crystals demonstrate reconfigurable polarization states, moiré patterns and phases controlled by twist angles, providing a route to design active optical devices for ...
Jordan A. Wilson, Rui Huang, Allen Sun, Zixian Fang, Doreen Mwangombe, Keerthna Naina Rawat, Oliver Jacobs, Zhiwei Li   +7 more
wiley   +1 more source

A gas pixel detector for x-ray polarimetry

Nuclear Physics B - Proceedings Supplements, 2006
Even though lacking of solid experimental verifications, X-ray polarimetry is strongly established as a deep diagnostic tool for probing the emission mechanisms in astronomical sources of high energy radiation. The recent development of new, more efficient instrumentation, as well as the renewed interest of the theoreticians, has drawn a significant ...
BALDINI, LUCA, ANGELINI, FRANCO, Bellazzini R, Bitti F, Brez A, Latronico L, MASSAI, MARCO MARIA, Minuti M, Omodei N, RAZZANO, MASSIMILIANO, Sgro C, Spandre G, Costa E, Soffitta P, Pacciani L.   +14 more
openaire   +3 more sources