Results 11 to 20 of about 120,013 (268)

Rainbow’s stars [PDF]

open access: yesThe European Physical Journal C, 2017
In recent years, a growing interest on the equilibrium of compact astrophysical objects like white dwarf and neutron stars has been manifested. In particular, various modifications due to Planck scale energy effects have been considered. In this paper we analyze the modification induced by Gravity's Rainbow on the equilibrium configurations described ...
Garattini, Remo, Mandanici, Gianluca
openaire   +3 more sources

Reddening-Free Q Parameters to Classify B-Type Stars with Emission Lines

open access: yesGalaxies, 2023
The emission-line B-type stars constitute a heterogeneous group. Many of these stars show similar optical spectroscopic features and color indices, making it difficult to classify them adequately by means of photometric and spectroscopic techniques. Thus,
Yael Aidelman, Lydia Sonia Cidale
doaj   +1 more source

Looking at the Stars

open access: yesTheoretical Computer Science, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Elena Prieto-Rodriguez, Christian Sloper
openaire   +4 more sources

CHIME Discovery of a Binary Pulsar with a Massive Nondegenerate Companion

open access: yesThe Astrophysical Journal, 2023
Of the more than 3000 radio pulsars currently known, only ∼300 are in binary systems, and only five of these consist of young pulsars with massive nondegenerate companions.
Bridget C. Andersen   +27 more
doaj   +1 more source

The Effect of Viscosity on the Temperature of Ae Star Disks

open access: yesGalaxies
This study explores the impact of viscous heating on decretion disks around Classical Ae (CAe) stars, with a focus on modeling the disk’s thermal structure.
R. Anusha, T. A. A. Sigut
doaj   +1 more source

The State Complexity of Star-Complement-Star [PDF]

open access: yes, 2012
We resolve an open question by determining matching (asymptotic) upper and lower bounds on the state complexity of the operation that sends a language L to (c(L*))*, where c() denotes complement.
Galina Jirásková, Jeffrey O. Shallit
openaire   +2 more sources

K2 Photometry and Long-Term Hα Variability in Four Previously Unreported Be Stars

open access: yesUniverse
Classical Be stars are key laboratories for investigating how rapid rotation, pulsations, and mass loss couple to the formation and evolution of circumstellar decretion disks.
Alan Wagner Pereira   +6 more
doaj   +1 more source

A Dragon Out of Breath? Monitoring High-velocity Outflows from the High-mass Gamma-Ray Binary LS 2883/PSR B1259–63 During the 2017–2021 Binary Cycle

open access: yesThe Astrophysical Journal, 2023
Observations of the high-mass gamma-ray binary LS 2883/PSR B1259–63 with the Chandra X-ray Observatory during the 2011–2014 and 2014–2017 binary cycles have shown X-ray-emitting clumps, presumably ejected from the binary during periastron passages. These
Jeremy Hare   +3 more
doaj   +1 more source

A Search for Be Stars in Multiple Systems within the Solar Neighborhood

open access: yesThe Astrophysical Journal
Be stars are widely considered to be the product of binary interaction. However, whether all Be stars are formed via binary interaction is unclear, and detailed estimates of the multiplicity of Be stars and characterization of their components are ...
V. M. Kalari   +11 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

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