Results 61 to 70 of about 201,431 (246)

New Distances to Four Supernova Remnants

open access: yesOpen Physics Journal, 2017
Distances are found for four supernova remnants without previous distance measurements. H I spectra and H I channel maps are used to determine the maximum velocity of H I absorption for the four Supernova Remnants (SNRs). We examined 13CO emission
S. Ranasinghe, D. Leahy, W. Tian
semanticscholar   +1 more source

Practical Aspects of X-ray Imaging Polarimetry of Supernova Remnants and Other Extended Sources

open access: yesGalaxies, 2018
The new generation of X-ray polarisation detectors, the gas pixel detectors, which will be employed by the future space missions IXPE and eXTP, allows for spatially resolved X-ray polarisation studies.
Jacco Vink, Ping Zhou
doaj   +1 more source

Molecules and dust in Cassiopeia A - II. Dust sputtering and diagnosis of supernova dust survival in remnants [PDF]

open access: yes, 2015
We study the dust evolution in the supernova remnant Cassiopeia A. We follow the processing of dust grains that formed in the Type II-b supernova ejecta by modelling the sputtering of grains. The dust is located in dense ejecta clumps that are crossed by
C. Biscaro, I. Cherchneff
semanticscholar   +1 more source

Microvascular Health as a Key Determinant of Organismal Aging

open access: yesAdvanced Science, EarlyView.
This review spotlights the emerging field of vascular aging, providing a comprehensive and critical overview of the molecular processes and clinical manifestations of vascular dysfunction during aging. By combining basic angioscience concepts with a critical analysis of innovative pre‐clinical aging models and lifestyle interventions, it offers a ...
Mattia Cenciarini   +4 more
wiley   +1 more source

MHD Interaction of Pulsar Wind Nebulae with SNRs and the ISM

open access: yes, 2005
In the late 1960s the discovery of the Crab pulsar in its associated supernova remnant, launched a new field in supernova remnant research: the study of pulsar-driven or plerionic supernova remnants.
Arzoumanian   +28 more
core   +2 more sources

DISCRIMINATING THE PROGENITOR TYPE OF SUPERNOVA REMNANTS WITH IRON K-SHELL EMISSION [PDF]

open access: yes, 2014
Supernova remnants (SNRs) retain crucial information about both their parent explosion and circumstellar material left behind by their progenitor. However, the complexity of the interaction between supernova ejecta and ambient medium often blurs this ...
H. Yamaguchi   +13 more
semanticscholar   +1 more source

Logarithmic and Strong Coupling Models in Weyl‐Type f(Q,T)$f(Q,T)$ Gravity

open access: yesAnnalen der Physik, EarlyView.
This work explores Weyl‐type f(Q,T) gravity using recent observational datasets — CC, Pantheon+, Union 3.0, and DESI DR2. Through MCMC analysis of logarithmic and strong coupling models, the study reveals a transition from deceleration to acceleration, quintessence‐to‐phantom dynamics, and late‐time consistency with LCDM, offering a geometry‐driven ...
Rahul Bhagat, S. K. Tripathy, B. Mishra
wiley   +1 more source

Hubble Space Telescope Proper Motion Measurements of Supernova Remnant N132D: Center of Expansion and Age

open access: yesThe Astrophysical Journal, 2023
We present proper motion measurements of the oxygen-rich ejecta of the LMC supernova remnant N132D using two epochs of Hubble Space Telescope Advanced Camera for Surveys data spanning 16 years.
John Banovetz   +10 more
doaj   +1 more source

Searches for continuous gravitational waves from nine young supernova remnants [PDF]

open access: yes, 2014
We describe directed searches for continuous gravitational waves in data from the sixth LIGO science data run. The targets were nine young supernova remnants not associated with pulsars; eight of the remnants are associated with non-pulsing suspected ...
J. Aasi   +465 more
semanticscholar   +1 more source

Radial Velocity Monitoring and Analysis of Gaia Astrometry of Selected Intermediate Mass Stars to Constrain Their Multiplicity Status

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT We present new radial velocity measurements of 13 selected intermediate mass stars (2–6 M⊙). The measurements were performed between 29 April and 6 September 2024 at the University Observatory Jena using the échelle spectrograph FLECHAS. The radial velocity of eight stars was found to be constant during our spectroscopic monitoring, namely: 17
J. Bätz   +7 more
wiley   +1 more source

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