Results 81 to 90 of about 31,062 (274)
The Astrophysical JournalAn accurate estimation of the continuum excess emission from accretion spots and inner circumstellar disk regions is crucial for a proper derivation of fundamental stellar parameters in accreting systems.
Facundo Pérez Paolino +4 more
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A LAMOST Spectroscopic Study of T Tauri Stars in the Orion OB1a Subassociation
The Astronomical Journal, 2023 We present a spectroscopic analysis of T Tauri stars (TTSs) observed with the wide-field multifiber spectrograph LAMOST in the substellar associations Ori OB1a located in the Orion Star-forming Complex.
Jesús Hernández +11 more
doaj +1 more source
Line-dependent veiling in very active T Tauri Stars [PDF]
, 2017 The T Tauri stars with active accretion disks show veiled photospheric spectra. This is supposedly due to non-photospheric continuum radiated by hot spots beneath the accretion shocks at stellar surface and/or chromospheric emission lines radiated by the
Ana C. Rei, P. Petrov, J. Gameiro
semanticscholar +1 more source
The Journal of American Culture, EarlyView.ABSTRACT Tim Burton's Christmas trilogy, Batman Returns, The Nightmare Before Christmas and Edward Scissorhands are all characterized by his trademark features. These include characters with ambiguous identities, apparently “normal” worlds adjacent to spaces associated with difference and exclusion, and the inevitable intrusion of the latter into the ...
Fran Pheasant‐Kelly
wiley +1 more source
ABYSS. III. Observing Accretion Activity in Young Stars Through Empirical Veiling Measurements
The Astronomical JournalStellar accretion plays an important role in the early stages of stellar evolution, particularly in Classical T Tauri Stars (CTTSs). Accretion of a CTTS can be related to different physical parameters such as effective temperature ( T _eff ), age ...
Serat Saad +7 more
doaj +1 more source
ARE T TAURI STARS GAMMA-RAY EMITTERS? [PDF]
The Astrophysical Journal, 2011 7 pages, 10 ...
Valle, María Victoria del +4 more
openaire +3 more sources
Higher Objectives of Islamic Law (Maqāṣid al‐Sharīʿa) in Substantiating Justice in Land Tax
The Muslim World, EarlyView.Abstract This article discusses the relationship between the systemization of kharāj (land tax) and the higher objective of Islamic law or Maqāṣid al‐Sharīʿa. After the conquest of Sawād region (located in modern‐day southern Iraq), the First Caliph ʿUmar (634 ‐ 644 CE) introduced a new approach to the distribution of ghanīmah (spoils of war), leaving ...
Öznur Özdemir, Mehmet Asutay
wiley +1 more source
Noûs, EarlyView.ABSTRACT It is a truism of mathematics that differences between isomorphic number systems are irrelevant to arithmetic. This truism is deeply rooted in the modern axiomatic method and underlies most strands of arithmetical structuralism, the view that arithmetic is about some abstract number structure.
Balthasar Grabmayr
wiley +1 more source
Oscillations of the Boundary Layer and High-frequency QPOs
EPJ Web of Conferences, 2014 We observed persistent high-frequency oscillations of the boundary layer near an accreting, weakly-magnetized star in global 3D MHD simulations. The tilted dipole magnetic field is not strong enough to open a gap between the star and the disk.
Blinova A. A. +2 more
doaj +1 more source
Plant Biotechnology Journal, EarlyView.ABSTRACT Microalgae are increasingly recognised as powerful platforms for the sustainable production of lipids and terpenoids, with expanding applications in the food, fuel and biomanufacturing industries. In this updated review, we consolidate and critically assess the most recent advances in synthetic biology and metabolic engineering of key ...
Ty Shitanaka +6 more
wiley +1 more source