Results 31 to 40 of about 55,563 (297)
MAGNETIC INTERACTIONS IN COALESCING NEUTRON STAR BINARIES [PDF]
The Astrophysical Journal, 2012 10 pages, 9 figures, submitted for publication in The Astrophysical ...
openaire +3 more sources
Multiple Tidal Disruptions as an Indicator of Binary Super-Massive Black Hole Systems [PDF]
, 2010 We find that the majority of systems hosting multiple tidal disruptions are likely to contain hard binary SMBH systems, and also show that the rates of these repeated events are high enough to be detected by LSST over its lifetime.
Aller +18 more
core +2 more sources
White dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 14 [PDF]
, 2019 White dwarfs carry information on the structure and evolution of the Galaxy, especially through their luminosity function and initial-to-final mass relation. Very cool white dwarfs provide insight into the early ages of each population.
Amaral, Larissa A. +8 more
core +2 more sources
Strong Variability in AzV 493, an Extreme Oe-type Star in the SMC
The Astrophysical Journal, 2023 We present 18 yr of OGLE photometry together with spectra obtained over 12 yr revealing that the early Oe star AzV 493 shows strong photometric (Δ I < 1.2 mag) and spectroscopic variability with a dominant, 14.6 yr pattern and ∼40 day oscillations.
M. S. Oey +13 more
doaj +1 more source
Interacting X-ray Binaries in Globular Clusters: 47Tuc vs. NGC 6397
, 2005 Our deep Chandra exposures of 47Tuc and moderate exposures of NGC 6397 reveal a wealth of new phenomena for interacting X-ray binaries (IXBs) in globular clusters.
Grindlay, Jonathan E.
core +1 more source
The Interacting Binary Be Star HR 2142 [PDF]
International Astronomical Union Colloquium, 2002 AbstractCurrent information on the nature of the HR 2142 system is presented. The circumstellar material (CSM) including the mass flow toward and away from the mass-gaining B star has been studied from ∼ 100 IUESWP HIRES images obtained from 1979–95 and ground-based CCD data from KPNO acquired between 1985–2001.
Geraldine J. Peters, Douglas R. Gies
openaire +1 more source
, 2017 Recent surveys of the Magellanic Clouds have revealed a subtype of Wolf-Rayet (WR) star with peculiar properties. WN3/O3 spectra exhibit both WR-like emission and O3 V-like absorption - but at lower luminosity than O3 V or WN stars.
de Mink, Selma E. +2 more
core +2 more sources
Photoionization models of the Eskimo nebula: evidence for a binary central star? [PDF]
, 2011 The ionizing star of the planetary nebula NGC 2392 is too cool to explain the high excitation of the nebular shell, and an additional ionizing source is necessary. We use photoionization modeling to estimate the temperature and luminosity of the putative
Danehkar, Ashkbiz +3 more
core +1 more source
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source
TESS Light Curve of the Interacting Binary W Serpentis
The Astronomical JournalThe unusal light curve of the massive eclipsing binary W Ser was recently observed with high S/N and fast cadence by the NASA TESS mission. The TESS light curve records two eclipses and relatively fast variations outside of the eclipses.
Douglas R. Gies +3 more
doaj +1 more source