Results 51 to 60 of about 1,114,432 (235)

Symbiotic star candidates in Gaia Data Release 3

The Open Journal of Astrophysics
Symbiotic stars, binary pairs with a cool giant fueling accretion onto a hot compact companion, offer unique insights to our understanding of stellar evolution. Yet, only a few hundred symbiotic stars are confirmed.
Samantha E. Ball, Benjamin C Bromley, Scott J. Kenyon   +2 more
doaj   +1 more source

"INTER-LONGITUDE ASTRONOMY" (ILA) PROJECT: CURRENT HIGHLIGHTS AND PERSPECTIVES. I. MAGNETIC VS. NON-MAGNETIC INTERACTING BINARY STARS

Odessa Astronomical Publications, 2010
We present a review of highlights of our photometric and photo-polarimetric monitoring and mathematical modeling of interacting binary stars of different types classical, asynchronous, intermedi ate polars with 25 timescales corresponding to differ ent ...
I. L. Andronov, K. A. Antoniuk, A. V. Baklanov, V. V. Breus, V. Burwitz, L. L. Chinarova, D. Chochol, P. A. Dubovsky, W. Han, T. Hegedus, A. Henden, L. Hric, Chun-Hwey Kim, Yonggi Kim, S. V. Kolesnikov, I. Kudzej, A. Liakos, P. G. Niarchos, A. Oksanen, L. Patkos, K. Petrik, N. V. Pit', N. M. Shakhovskoy, N. A. Virnina, J. Yoon, S. Zola   +25 more
doaj   +1 more source

Greening the Bottom Line: Public Funding for Circular Economy Initiatives and Financial Stability

Business Strategy and the Environment, EarlyView.
ABSTRACT Public funding for circular economy (CE) initiatives plays a crucial role in shaping corporate financial performance, yet its effects remain underexplored. Grounded in the resource‐based view (RBV) of the firm, this study investigates the financial impact of CE funding on private firms, using Portugal as a case study. It analyses the financial
Rui Cruz, Marisa R. Ferreira, Carina Silva, María Isabel Sánchez‐Hernández   +3 more
wiley   +1 more source

Ultraviolet spectroscopy of old novae and symbiotic stars [PDF]

, 1981
The IUE spectra are presented for two old novae and for two of the symbiotic variables. Prominent emission line spectra are revealed as a continuum whose appearance is effected by the system inclination.
Ferland, G. J., Shields, G. A., Slovak, M. H., Lambert, D. L.   +3 more
core  

Widely separated binary systems of very low-mass stars

, 2005
In this paper we review some recent detections of wide binary brown dwarf systems and discuss them in the context of the multiplicity properties of very low-mass stars and brown ...
Phan-Bao, N., Reylé, C., Martín, E. L.
core   +2 more sources

An Indicator‐Based Decision Framework for Circular Bioeconomy Transition in the Steel Industry: Integrating Multiphase Learning and Cooperative Game Modelling

Business Strategy and the Environment, EarlyView.
ABSTRACT Despite growing attention to the circular bioeconomy (CBE), the steel industry currently lacks a standardised, sectoral measurement framework to facilitate a low‐carbon transition. In this study, a decision‐support framework for evaluating CBE performance in the steel industry is proposed.
Ali Zamani Babgohari, Mohammadreza Sadeghi‐Moghadam, Hannan Amoozad Mahdiraji   +2 more
wiley   +1 more source

Models of symbiotic stars [PDF]

, 1993
One of the most important features of symbiotic stars is the coexistence of a cool spectral component that is apparently very similar to the spectrum of a cool giant, with at least one hot continuum, and emission lines from very different stages of ...
Friedjung, Michael
core  

Discovery of Variable Polarization in the Hα Profile of the Symbiotic Star Y Gem: A Case for Orbital-phase-dependent Variation in Raman-scattered Lyβ Emission

The Astrophysical Journal
The geometry and morphology of symbiotic stars (SySts) are conducive to a variety of scattering phenomena. Among the most prominent is the Raman scattering of the O VI doublet λλ 1032, 1038, which often shows strongly polarized features in the visible ...
Arijit Maiti, Mudit K. Srivastava, Vipin Kumar   +2 more
doaj   +1 more source

When Nature Counts: Corporate Biodiversity Attention and Access to Bank Finance

Business Strategy and the Environment, EarlyView.
ABSTRACT This paper investigates whether corporate attention to biodiversity influences firms' access to bank loans, an overlooked question in the emerging biodiversity–finance literature. Using a novel, text‐based measure constructed from 446 biodiversity‐related keywords and applied to Chinese A‐share listed firms from 2000 to 2023, we show that ...
Ruxiao Li, Bo Zhang, Zhang‐Hangjian Chen, Hafiz Hoque   +3 more
wiley   +1 more source

New Symbiotic Stars from LAMOST DR10 Spectra and Multiband Photometry

The Astrophysical Journal
The Symbiotic star (SySt) is a long-period interacting binary system, typically consisting of a white dwarf (WD) and a red giant surrounded by a nebula. These systems are natural astrophysical laboratories for investigating binary star evolution. In this
Jing Chen, Liang Wang, Yin-Bi Li, Xiao-Xiao Ma, A-Li Luo, Zi-Chong Zhang, Ming-Yi Ding, Kai Zhang   +7 more
doaj   +1 more source