Results 71 to 80 of about 42,366 (215)

A possible association of the new VHE gamma-ray source HESS J1825--137 with the pulsar wind nebula G18.0--0.7

open access: yes, 2005
We report on a possible association of the recently discovered very high-energy $\gamma$-ray source HESS J1825--137 with the pulsar wind nebula (commonly referred to as G 18.0--0.7) of the $2.1\times 10^{4}$ year old Vela-like pulsar PSR B1823--13.
A. Djannati-Ataï   +114 more
core   +2 more sources

X-Ray Studies of PSR J1838–0655 and its Wind Nebula Associated with HESS J1837–069 and 1LHAASO J1837–0654u

open access: yesThe Astrophysical Journal
We analyzed X-ray data from Chandra, XMM-Newton, NICER, and NuSTAR to characterize the properties of the pulsar PSR J1838−0655 and its pulsar wind nebula (PWN) associated with HESS J1837−069.
Minseo Park   +3 more
doaj   +1 more source

Chandra observations of the old pulsar PSR B1451-68

open access: yes, 2012
We present 35 ks Chandra ACIS observations of the 42 Myr old radio pulsar PSR B1451-68. A point source is detected 0.32" +/- 0.73" from the expected radio pulsar position. It has ~200 counts in the 0.3-8 keV energy range. We identify this point source as
Garmire, G. P.   +4 more
core   +1 more source

High‐Yield Bioproduction of Extracellular Vesicles from Stem Cell Spheroids via Millifluidic Vortex Transport

open access: yesAdvanced Materials, Volume 37, Issue 20, May 19, 2025.
Stem cell spheroids, produced via a high‐throughput microfabrication technique, are transported within a vortex generated at the outlet channels of a cross‐slot millifluidic chip. For Reynolds number exceeding 170–200, intermittent high shear stresses applied to each spheroid within the vortex trigger a massive release of biologically active ...
Elliot Thouvenot   +8 more
wiley   +1 more source

Parkes Radio and NuSTAR X-Ray Observations of the Composite Supernova Remnant B0453–685 in the Large Magellanic Cloud

open access: yesThe Astrophysical Journal
Gamma-ray emission is observed coincident in position to the evolved, composite supernova remnant (SNR) B0453–685. Prior multiwavelength investigations of the region indicate that the pulsar wind nebula (PWN) within the SNR is the most likely origin for ...
Jordan Eagle   +11 more
doaj   +1 more source

X-ray emission from PSR J1809-1917 and its pulsar wind nebula, possibly associated with the TeV gamma-ray source HESS J1809-193

open access: yes, 2007
We detected X-ray emission from the 50-kyr-old pulsar J1809-1917 and resolved its pulsar wind nebula (PWN) with Chandra. The pulsar spectrum fits PL+BB model with the photon index of 1.2 and the BB temperature of 2 MK for n_{H}=0.7\times 10^{22} cm^{-2}.
G. G. Pavlov   +4 more
core   +1 more source

STING Agonists and How to Reach Their Full Potential in Cancer Immunotherapy

open access: yesAdvanced Science, Volume 12, Issue 17, May 8, 2025.
STING agonists show promise in preclinical studies in boosting an anti‐tumor response using the immune system. However, different limitations remain, and future research is needed to better understand how STING activation impacts the tumor microenvironment, identify effective combination strategies, and determine the best tumor types for STING agonist ...
Laura Gehrcken   +3 more
wiley   +1 more source

Identification of a Biomarker Panel in Extracellular Vesicles Derived From Non‐Small Cell Lung Cancer (NSCLC) Through Proteomic Analysis and Machine Learning

open access: yesJournal of Extracellular Vesicles, Volume 14, Issue 5, May 2025.
This study introduces a promising method for isolating tumour‐derived extracellular vesicles (TDEVs) from the blood of the patients with non‐small cell lung cancer (NSCLC). Through proteomic analysis, we identified a panel of seven proteins that can reliably distinguish between healthy individuals and patients with NSCLC, providing a valuable tool for ...
Ye Yuan   +12 more
wiley   +1 more source

High-energy Emission from the Intrabinary Shocks in Redback Pulsars

open access: yesThe Astrophysical Journal
The intrabinary shocks (IBS) of spider pulsars emit nonthermal synchrotron X-rays from accelerated electrons and positrons in the shocked pulsar wind, likely energized by magnetic reconnection.
Andrew G. Sullivan, Roger W. Romani
doaj   +1 more source

Observations of the Transient X-ray Pulsar KS 1947+300 by the INTEGRAL and RXTE Observatories

open access: yes, 2005
We analyze the observations of the X-ray pulsar KS 1947+300 performed by the INTEGRAL and RXTE observatories over a wide (3-100 keV) X-ray energy range. The shape of the pulse profile was found to depend on the luminosity of the source.
A. A. Lutovinov   +22 more
core   +2 more sources

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