Results 121 to 130 of about 67,039 (310)

Identification of New Candidate Be/X-Ray Binary Systems in the Small Magellanic Cloud via Analysis of the S-CUBED Source Catalog

The Astrophysical Journal
It has long been known that a large population of Be/X-ray binaries (BeXRBs) exists in the Milky Way’s neighboring dwarf galaxy, the Small Magellanic Cloud (SMC), due to a recent period of intense star formation.
Thomas M. Gaudin, Jamie A. Kennea, M. J. Coe, Phil A. Evans   +3 more
doaj   +1 more source

Distinct Systemic Sclerosis Phenotypes Related to Ethnicity: An Opportunity to Personalize Care?

Arthritis Care &Research, EarlyView.
Objective The objective is to describe and compare demographic, clinical, and serological characteristics of patients with systemic sclerosis (SSc) according to ethnic background. Methods Participants enrolled in the Canadian Scleroderma Research Group cohort who self‐identified to a single ethnicity group were included.
Danick Goulet, Camille Guertin, Maggie Larché, Isabelle Ferdinand, Marie Hudson, May Y. Choi, Mohammed Osman, Janet Pope, Carter Thorne, Murray Baron, Sasha Bernatsky, Sabrina Hoa   +11 more
wiley   +1 more source

Demography of obscured and unobscured AGN: prospects for a Wide Field X-ray Telescope

, 2011
We discuss some of the main open issues in the evolution of Active Galactic Nuclei which can be solved by the sensitive, wide area surveys to be performed by the proposed Wide Field X-ray Telescope ...
Borgani S., VIGNALI, CRISTIAN, LUSSO, ELISABETA, Paolillo M., Comastri A., MARULLI, FEDERICO, Gilli R., BRUSA, MARCELLA, Tozzi P., Rosati P.   +9 more
core  

Searching for the Highest-z Dual Active Galactic Nuclei in the Deepest Chandra Surveys

The Astrophysical Journal
We present an analysis searching for dual active galactic nuclei (AGN) among 62 high-redshift (2.5 < z < 3.5) X-ray sources selected from the X-UDS, AEGIS-XD, CDF-S, and COSMOS-Legacy Chandra surveys.
Brandon Sandoval, Adi Foord, Steven W. Allen, Marta Volonteri, Nianyi Chen, Tiziana Di Matteo, Aaron Stemo, Kayhan Gültekin, Melanie Habouzit, Clara Puerto-Sánchez, Edmund Hodges-Kluck, Yohan Dubois   +11 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Models for Low Mass X-ray Binaries in the elliptical galaxies NGC3379 and NGC4278: comparison with observations

, 2007
We present theoretical models for populations of low-mass X-ray binaries in two elliptical galaxies NGC3379 and ...
Kalogera V., Kim D. W., Gallagher J. S., PELLEGRINI, SILVIA, Fabbiano G., Angelini L., Fragos T., King A. R., Davies R. L.   +8 more
core  

Discovery of the Optical and Radio Counterpart to the Fast X-Ray Transient EP 240315a

The Astrophysical Journal Letters
Fast X-ray Transients (FXTs) are extragalactic bursts of soft X-rays first identified ≳10 yr ago. Since then, nearly 40 events have been discovered, although almost all of these have been recovered from archival Chandra and XMM-Newton data.
J. H. Gillanders, L. Rhodes, S. Srivastav, F. Carotenuto, J. Bright, M. E. Huber, H. F. Stevance, S. J. Smartt, K. C. Chambers, T.-W. Chen, R. Fender, A. Andersson, A. J. Cooper, P. G. Jonker, F. J. Cowie, T. de Boer, N. Erasmus, M. D. Fulton, H. Gao, J. Herman, C.-C. Lin, T. Lowe, E. A. Magnier, H.-Y. Miao, P. Minguez, T. Moore, C.-C. Ngeow, M. Nicholl, Y.-C. Pan, G. Pignata, A. Rest, X. Sheng, I. A. Smith, K. W. Smith, J. L. Tonry, R. J. Wainscoat, J. Weston, S. Yang, D. R. Young   +38 more
doaj   +1 more source

Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects

Advanced Engineering Materials, EarlyView.
This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula, Gökhan Küçüktürk, Duran Kaya, David Grossin, Christophe Tenailleau, Benjamin Duployer, Enrique Juste, Fabrice Petit   +7 more
wiley   +1 more source

Searching for Accreting Compact Object Binaries in SRG/eROSITA eRASS1

The Astrophysical Journal
Compact object binaries with accreting white dwarfs, neutron stars, or black holes are crucial for understanding accretion physics. In this study, we identify accreting compact object binary candidates in the Spectrum–Roentgen–Gamma/eROSITA eRASS1 by ...
Hao-Bin Liu, Wei-Min Gu, Yongqi Lu, Teng Liu, Jin-Zhong Liu   +4 more
doaj   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source