Results 41 to 50 of about 5,204,122 (311)

EXAMINING THE INFRARED VARIABLE STAR POPULATION DISCOVERED IN THE SMALL MAGELLANIC CLOUD USING THE SAGE-SMC SURVEY [PDF]

open access: yes, 2014
We present our study on the infrared variability of point sources in the Small Magellanic Cloud (SMC). We use the data from the Spitzer Space Telescope Legacy Program “Surveying the Agents of Galaxy Evolution in the Tidally Stripped, Low Metallicity ...
E. Polsdofer   +6 more
semanticscholar   +1 more source

Classification of Variable Star Light Curves with Convolutional Neural Network

open access: yesGalaxies
The classification of variable stars is essential for understanding stellar evolution and dynamics. With the growing volume of light curve data from extensive surveys, there is a need for automated and accurate classification methods. Traditional methods
Almat Akhmetali   +6 more
doaj   +1 more source

DISCOVERY OF A STRONGLY PHASE-VARIABLE SPECTRAL FEATURE IN THE ISOLATED NEUTRON STAR RX J0720.4–3125 [PDF]

open access: yes, 2015
We present the discovery of a strongly phase-variable absorption feature in the X-ray spectrum of the nearby, thermally emitting, isolated neutron star RX J0720.4–3125.
A. Borghese   +4 more
semanticscholar   +1 more source

V. P. TSESEVICH AND MOSCOW VARIABLE-STAR ASTRONOMERS

open access: yesOdessa Astronomical Publications, 2007
This paper is a brief account of the variety of ties between V.P. Tsesevich and the Moscow variable-star team: publications in co-authorship (mainly in the form of collective monographs), Tsesevich's work in the Moscow plate stacks, conferences ...
N. N. Samus
doaj   +1 more source

Synchronizability of multilayer star-ring networks with variable coupling strength

open access: yesElectronic Research Archive, 2023
We investigate the synchronizability of multilayer star-ring networks. Two types of multilayer networks, including aggregated coupling and divergent coupling, are established based on the connections between the hub node and the leaf nodes in the ...
Shuang Liu   +3 more
doaj   +1 more source

A Quality Improvement Initiative to Standardize Pneumocystis jirovecii Pneumonia Prophylaxis in Pediatric Patients With Solid Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar   +8 more
wiley   +1 more source

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis   +9 more
wiley   +1 more source

THE CHROMOSPHERE-LIKE ENVELOPE OF THE VARIABLE STAR T TAU

open access: yesOdessa Astronomical Publications, 2017
The emission measure of the near-star chromosphere-like envelope of variable star T Tau with various mechanisms of radiation is computed. The normalization on the observed distribution of energy in continuum spectrum is carried out.
I. V. Shpychka, N. V. Virun
doaj   +1 more source

CCD Photometry Using Multiple Comparison Stars [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2004
The accuracy of CCD observations obtained at the Korean 1.8 m telescope has been studied. Seventeen comparison stars in the vicinity of the cataclysmic variable BG CMi have been measured.
Yonggi Kim   +2 more
doaj   +1 more source

Outage Probability Analysis of STAR-RIS Assisted NOMA Network With Correlated Channels

open access: yesIEEE Communications Letters, 2022
In this letter, we investigate the outage probability of a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted downlink non-orthogonal multiple access (NOMA) network over spatially correlated channels.
Tianxiong Wang   +3 more
semanticscholar   +1 more source

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