Results 71 to 80 of about 5,433 (258)

A soft x-ray polarimeter designed for broadband x-ray telescopes [PDF]

SPIE Proceedings, 2007
A novel approach for measuring linear X-ray polarization over a broad-band using conventional imaging optics and cameras is described. A new type of high efficiency grating, called the critical angle transmission grating is used to disperse soft X-rays radially from the telescope axis.
openaire   +2 more sources

Alternative Approaches for Estimating Highest‐Density Regions

International Statistical Review, EarlyView.
Summary Among the variety of statistical intervals, highest‐density regions (HDRs) stand out for their ability to effectively summarise a distribution or sample, unveiling its distinctive and salient features. An HDR represents the minimum size set that satisfies a certain probability coverage, and current methods for their computation require ...
Nina Deliu, Brunero Liseo
wiley   +1 more source

X-Ray and Optical Polarization Aligned with the Radio Jet Ejecta in GX 339–4

The Astrophysical Journal Letters
We present the first X-ray polarization measurements of GX 339–4. IXPE observed this source twice during its 2023–2024 outburst, once in the soft-intermediate state and again during a soft state.
G. Mastroserio, B. De Marco, M. C. Baglio, F. Carotenuto, S. Fabiani, T. D. Russell, F. Capitanio, Y. Cavecchi, S. Motta, D. M. Russell, M. Dovčiak, M. Del Santo, K. Alabarta, A. Ambrifi, S. Campana, P. Casella, S. Covino, G. Illiano, E. Kara, E. V. Lai, G. Lodato, A. Manca, I. Mariani, A. Marino, C. Miceli, P. Saikia, A. W. Shaw, J. Svoboda, F. M. Vincentelli, J. Wang   +29 more
doaj   +1 more source

The high energy X-ray probe (HEX-P): instrument and mission profile

Frontiers in Astronomy and Space Sciences
The High Energy X-ray Probe (HEX-P) is a proposed NASA probe-class mission that combines the power of high angular resolution with a broad X-ray bandpass to provide the necessary leap in capabilities to address the important astrophysical questions of ...
Kristin K. Madsen, Javier A. García, Javier A. García, Daniel Stern, Rashied Amini, Stefano Basso, Diogo Coutinho, Brian W. Grefenstette, Steven Kenyon, Alberto Moretti, Patrick Morrissey, Kirpal Nandra, Giovanni Pareschi, Peter Predehl, Arne Rau, Daniele Spiga, Jörn Wilms, William W. Zhang   +17 more
doaj   +1 more source

XIAO: a soft x-ray telescope for the SVOM mission [PDF]

, 2008
S. Mereghetti, A. De Luca, M. Fiorini, N. La Palombara, A. Tiengo, M. Uslenghi, G. Vianello, G. Villa, A. Zambra, A. Moretti, Stefano Basso, S. Campana, P. Conconi, Vincenzo Cotroneo, S. Covino, G. Ghirlanda, G. Ghisellini, Giovanni Pareschi, G. Tagliaferri, M. Trifoglio, L. Amati, F. Gianotti, L. Stella, L. A. Antonelli, B. Cordier, D. Götz   +25 more
openalex   +1 more source

Symptomatic Deep Venous Thrombosis of the Upper Extremity Following Transvenous Lead Extraction, Data From EXTRACT Registry

Journal of Cardiovascular Electrophysiology, EarlyView.
ABSTRACT Background Venous thrombosis occurring after TLE procedures is a fairly common but poorly described complication and requires further investigation into its causes. Aim The aim of this study was to identify independent predictors of UEDVT occurrence after TLE procedures.
Michal Joniec, Joanna Stachanczyk, Syliwia Gladysz‐Wanha, Eugeniusz Pilat, Anna Drzewiecka, Jolanta Biernat, Andrzej Weglarzy, Wojciech Wanha, Rafal Gardas, Krzysztof S. Golba   +9 more
wiley   +1 more source

Survival of the Accretion Disk in LMC Recurrent Nova 1968-12a: UV–X-Ray Case Study of the 2024 Eruption

The Astrophysical Journal
We report on UV and X-ray observations of the 2024 eruption of the recurrent nova LMCN 1968-12a, a rapidly recurring extragalactic system with a ∼4.3 yr recurrence period and a massive white dwarf. The eruption was discovered on 2024 August 1.8 by Swift,
Judhajeet Basu, G.C. Anupama, Jan-Uwe Ness, Kulinder Pal Singh, Sudhanshu Barway, Shatakshi Chamoli   +5 more
doaj   +1 more source

The Background Model of the Medium Energy X-ray telescope of Insight-HXMT [PDF]

, 2020
Chengcheng Guo, J. Y. Liao, Shu Zhang, Juan Zhang, Ying Tan, L. M. Song, F. J. Lu, Xue-Lei Cao, Zhi Chang, Yupeng Chen, Yuanyuan Du, Mingyu Ge, Yudong Gu, Weichun Jiang, Gang Li, Xian Li, Xiao‐Bo Li, ShaoZhen Liu, Xiao-Jing Liu, X. F. Lu, T. Luo, Bin Meng, Liang Sun, Jia-Wei Yang, S. Yang, Yuan You, Wanchang Zhang, Haisheng Zhao, Shuang‐Nan Zhang   +28 more
openalex   +1 more source

JAXA curation for Bennu samples returned by the NASA's OSIRIS‐REx mission

Meteoritics &Planetary Science, EarlyView.
Abstract NASA's OSIRIS‐REx mission successfully collected and returned ~121.6 g of bulk samples from the B‐type, near‐Earth asteroid (101955) Bennu to Earth in September 2023. Upon returning to Earth, the samples were transported to the NASA Johnson Space Center where most of the samples have been stored and processed.
Rui Tahara, Kentaro Hatakeda, Masahiro Nishimura, Kasumi Yogata, Ryota Fukai, Akiko Miyazaki, Toru Yada, Yuma Enokido, Masanao Abe, Seiya Kawasaki, Ryosuke Sakurai, Tatsuaki Okada, Cedric Pilorget, Jean‐Pierre Bibring, Vincent Hamm, Lionel Lourit, Damien Loizeau, Lucie Riu, Koki Yumoto, Yuichiro Cho, Seiji Sugita, Shumpei Nakahara, Shoki Mori, Yuta Aikyo, Shingo Kameda, Roger Stabbins, Yuta Shimizu, Hideaki Miyamoto, Yuya Hitomi, Arisa Nakano, Kana Nagashima, Haruna Sugahara, Shino Suzuki, Shunta Kimura, Tomohiro Usui   +34 more
wiley   +1 more source

Constraints on the X-Ray and Very-high-energy Gamma-Ray Flux from Supernova Remnant W44

The Astrophysical Journal
Observations of GeV gamma-ray emission from the well-studied mixed-morphology supernova remnant (SNR) W44 by Fermi-Large Area Telescope and AGILE imply that it is a site of significant cosmic-ray acceleration.
A. Archer, P. Bangale, J. T. Bartkoske, W. Benbow, J. H. Buckley, Y. Chen, J. L. Christiansen, A. J. Chromey, A. Duerr, M. Errando, M. Escobar Godoy, S. Feldman, Q. Feng, J. Foote, L. Fortson, A. Furniss, W. Hanlon, O. Hervet, C. E. Hinrichs, J. Holder, T. B. Humensky, W. Jin, M. N. Johnson, P. Kaaret, M. Kertzman, M. Kherlakian, D. Kieda, T. K. Kleiner, N. Korzoun, S. Kumar, S. Kundu, M. J. Lang, G. Maier, M. Lundy, M. J. Millard, C. L. Mooney, P. Moriarty, R. Mukherjee, W. Ning, R. A. Ong, M. Pohl, E. Pueschel, J. Quinn, P. L. Rabinowitz, K. Ragan, P. T. Reynolds, D. Ribeiro, E. Roache, L. Saha, M. Santander, G. H. Sembroski, R. Shang, D. Tak, A. K. Talluri, J. V. Tucci, D. A. Williams, S. L. Wong, J. Woo   +57 more
doaj   +1 more source