Results 51 to 60 of about 5,695 (302)

Tracking the Enigmatic Globular Cluster Ultracompact X-Ray Binary X1850–087: Extreme Radio Variability in the Hard State

The Astrophysical Journal, 2023
The conditions under which accreting neutron stars launch radio-emitting jets and/or outflows are still poorly understood. The ultracompact X-ray binary X1850–087, located in the globular cluster NGC 6712, is a persistent atoll-type X-ray source that has
Teresa Panurach, Ryan Urquhart, Jay Strader, Laura Chomiuk, Arash Bahramian, Craig O. Heinke, Thomas J. Maccarone, James C. A. Miller-Jones, Gregory R. Sivakoff   +8 more
doaj   +1 more source

The location and kinematics of the emission line regions in Active Galactic Nuclei [PDF]

, 2008
This thesis contains the results from a study of the optical emission lines of various samples of active galactic nuclei (AGN). We have used three separate techniques to determine the precise kinematics and the relative location of the emission line ...
Mullaney, J R, Mullaney, J.R.
core  

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

The Impact of Ram Pressure on the Radio Spectral Index and Magnetic Field of NGC 4522: A High-resolution VLA Continuum Study

The Astrophysical Journal
We present high-resolution Very Large Array continuum observations at the S band (3 GHz, 560 pc scale) and X band (10 GHz, 200 pc scale) of the ram-pressure-stripped Virgo galaxy NGC 4522 to investigate the characteristics of its radio continuum ...
Woorak Choi, Aeree Chung, Chang-Goo Kim, Bumhyun Lee, Luca Cortese, Toby Brown, Barbara Catinella, Eric Emsellem, A. Fraser-McKelvie, Jiayi Sun, Adam Watts   +10 more
doaj   +1 more source

Radio continuum emission from young stellar objects in L1641

The Astrophysical Journal, 1990
The results of a 6 and 20 cm radio continuum survey of young stellar objects in the L1641 region located south of the Orion Nebula are presented. Four are identified as low-luminosity young stellar objects in L1641 and three more as Herbig-Haro or Herbig-Haro-like objects. These objects have bolometric luminosities between 80 and 300 solar, and their 6-
MORGAN, JA, Snell, RL, STROM, KM
openaire   +2 more sources

Radio continuum structure of the orion nebula [PDF]

, 2001
Restricted Access.We have imaged the large-scale radio continuum structure in the Orion region with the Very Large Array at 330 MHz. Arcminute-resolution morphology of the extended emission in the H II regions M42 and M43 (NGC 1976 and NGC 1982) and in ...
Subrahmanyan, Ravi, Goss, W. M., Goss, W.M., Malin, David F.   +3 more
core   +1 more source

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş, Mehmet Emin Demir, Sercan Özpınar   +2 more
wiley   +1 more source

Upper Limits to the Proper Motions of JuMBO 24, a Jupiter-mass Binary Object Candidate in Orion

The Astrophysical Journal
Using JWST near-infrared data of the inner Orion Nebula, S. G. Pearson & M. J. McCaughrean detected 40 binary systems they proposed to be Jupiter-mass binary objects (JuMBOs)—although their actual nature is still in debate. Only one of the objects, JuMBO
Luis F. Rodríguez, Laurent Loinard, Luis A. Zapata, Gisela N. Ortiz-León   +3 more
doaj   +1 more source

Radio-continuum study of the Nearby sculptor group galaxies. Part 1: NGC?300 at ?=20 cm [PDF]

, 2012
A series of new radio-continuum (λ = 20 cm) mosaic images focused on the NGC300 galactic system were produced using archived observational data from the VLA and/or ATCA.
Danica Drašković, Cahall, Benjamin J., Tothill, Nicholas F. H. (R17058), Drašcović, Danica, Graeme L. White, Galvin TJ, Laine, Seppo, Payne JL, White GJ, Drašković, Danica, White, Graeme L., Draskovic, Danica (R17054), De Horta, Ain Y. (R7559), Pannuti TG, Payne, Jeff L., Galvin, Timothy J. (S31555), Caleb K. Grimes, Millar WC, Thomas G. Pannuti, Ain De Horta, Cahall BJ, Nick Tothill, Laine S, Crawford EJ, Evan J. Crawford, Timothy J. Galvin, Filipovic, Miroslav (R7673), Millar, William C., Wong, Graeme F. (S30630), White, Graeme L. (R8825), Filipovi MD, De Horta, Ain, Filipović, Miroslav D., Crawford, Evan J., Seppo Laine, Galvin, Timothy J., Grimes, Caleb K., Graeme Wong, Crawford, Evan J. (R14178), Wong, Graeme, Tothill, Nick, Wong G, Horta A, Draškovi D, Jeff L. Payne, Benjamin J. Cahall, Tothill N, William C. Millar, Miroslav D. Filipović, Grimes CK, Pannuti, Thomas G., Payne, Jeffrey L. (R18152)   +51 more
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source