Results 61 to 70 of about 825 (231)

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

Astronomische Nachrichten, EarlyView.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth, Paško Roje, Stella Vješnica, Stefan Cikota, Alex J. Brown, Mike Kretlow, Marco Azzaro, Santiago Reinhart, Jesús Aceituno, Harry Dawson, Carsten Denker, Torsten Enßlin, Stephan Geier, Thomas Granzer, Thomas Kupfer, Gianluca Li Causi, Samaya Nissanke, José Luis Ortiz, Fernando Pedichini, Katja Poppenhäger, Axel Schwope   +20 more
wiley   +1 more source

Eclipsing Millisecond Pulsars with He Star Companions

The Astrophysical Journal
Eclipsing millisecond pulsars (MSPs) are a type of pulsar binaries with close orbits (≲1.0 day). They are important objects for studying the accretion history of neutron stars (NSs), pulsar winds, and the origin of isolated MSPs, etc.
Yunlang Guo, Bo Wang, Xiangdong Li, Dongdong Liu, Wenshi Tang   +4 more
doaj   +1 more source

Under-Developed and Under-Utilized Eclipsing Binary Model Capabilities [PDF]

Journal of Astronomy and Space Sciences, 2012
Existing but largely unused binary star model capabilities are examined. An easily implemented scheme is parameterization of starspot growth and decay that can stimulate work on outer convection zones and their dynamos.
R. E. Wilson
doaj   +1 more source

Revisiting Variable Stars Toward the Globular Cluster NGC 6496 With ATLAS and Gaia Photometry

Astronomische Nachrichten, EarlyView.
ABSTRACT We revisit 13 variable stars in the field of the metal‐rich globular cluster NGC 6496, discovered by Abbas et al. (2015; Astronomical Journal 149:40) (hereafter referred to as “MA15”) via time‐series data, spanning 2 years. We improve upon the MA15 characterization of the variables using ATLAS time‐series photometry data, spanning 8 years, in ...
Madison E. Martin, Andrew Layden, Andrew McNeill   +2 more
wiley   +1 more source

Do Governance Structures Drive Green Building Adoption? A Machine Learning Approach With Random Forests

Business Strategy and the Environment, EarlyView.
ABSTRACT This study examines the determinants of firms' propensity to adopt green buildings in the Euro Stoxx 300 and the S&P 500 indices, during 2012–2023. Using random forest binary classifiers, we assess the relative importance of financial, sectoral, geographic, and climate governance predictors and uncover nonlinear relationships often overlooked ...
María del Carmen Valls Martínez, José Manuel Santos‐Jaén, María Estefanía Sánchez Pacheco, Fernando José Zambrano Farías   +3 more
wiley   +1 more source

The Phenomenological Classification of TESS Eclipsing Binaries

The Astrophysical Journal Supplement Series
Eclipsing binaries are crucial astrophysical laboratories for studying stellar parameters and evolutionary processes. In this study, we constructed a machine learning–based model for systematic phenomenological classification of eclipsing binaries.
Shi-Qi Liu, Kai Li, Xiao-Dian Chen, Li-Heng Wang   +3 more
doaj   +1 more source

The Influence of Ethical Ideologies on Corporate Social Performance in Small and Medium‐Sized Enterprises in the United Kingdom

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Research addressing the microfoundations of corporate social performance (CSP) in small and medium‐sized enterprises (SMEs) remains sparse. This paper aims to investigate how SME managers' ethical ideology affects CSP and examines the mediating role of their CSR orientation (CSRO): economic, legal, ethical, and philanthropic.
Sarah Mohammad Suleiman Alsyoof, Vasa László, Tamás Sneider   +2 more
wiley   +1 more source

A Photometric and Spectroscopic Investigation of 11 TESS Eclipsing Contact Binaries

The Astrophysical Journal
By cross-matching the eclipsing binary catalog provided by A. Prša et al. with Large Sky Area Multi-Object Fiber Spectroscopic Telescope medium-resolution spectra, we obtained 11 targets.
Yani Guo, Kai Li, Yanke Tang, Xiang Gao, Qiqi Xia, Liheng Wang, Meng Guo   +6 more
doaj   +1 more source

Extragalactic eclipsing binaries: astrophysical laboratories [PDF]

New Astronomy Reviews, 2004
Eclipsing binaries (EBs) have long been known for providing accurate stellar fundamental properties, such as masses and radii. These are obtained from the modeling of light and radial velocity curves and, with input data of good quality, uncertainties of a few percent in the components’ physical properties are now routinely achieved.
openaire   +1 more source

Seizure forecasting: The long and winding road to clinical translation

Epilepsia, EarlyView.
Abstract Seizure forecasting has progressed from theoretical aspiration to a rapidly advancing research domain, yet clinical translation remains limited. Over the past decades, advances in algorithm development, chronic electroencephalography (EEG), wearable sensors, and the characterization of seizure cycles have demonstrated that seizure risk is not ...
Philippa J. Karoly, Rachel E. Stirling, Mark J. Cook, Daniel M. Goldenholz, Maxime O. Baud, Vikram R. Rao, Solveig Vieluf, Benjamin H. Brinkmann   +7 more
wiley   +1 more source