Results 71 to 80 of about 56,835 (159)

A imagem na popularização das ciências: a astronomia popular de Camille Flammarion/The image in the science´s popularization: the popular astronomy of Camille Flammarion

ETD: Educação Temática Digital, 2008
Na prática científica, não existe a imagem pela imagem. A imagem é sempre considerada um processo, o resultado de uma teoria ou a representação de um raciocínio ou modelo. Neste artigo introduzirei a discussão sobre o funcionamento de imagens em uma obra
Silvania Sousa do Nascimento
doaj  

The bulk metal content of WASP-80 b from joint interior-atmosphere retrievals

Astronomy & Astrophysics
The atmospheres of warm gas giants can be readily characterized through transmission and emission spectroscopy. WASP-80 b is one such exoplanet, with an unusually low density that is in tension with the metal-rich composition expected for a planet of ...
Acuña-Aguirre L., Kreidberg L., Mollière P., Bachmann N.   +3 more
doaj   +1 more source

The demographics of core-collapse supernovae

Astronomy & Astrophysics
Context. The observational properties of core-collapse supernovae are shaped by the envelopes of their progenitors. In massive binary systems, mass-transfer drastically alters the pre-supernova structures compared to single stars, which leads to a ...
Ercolino Andrea, Jin Harim, Langer Norbert, Gal-Yam Avishay, Schootemeijer Abel, Mannes Caroline   +5 more
doaj   +1 more source

SIMTERFERE: An optical interferometry simulator for quantifying the coherent flux stability of VLTI/GRAVITY+

Astronomy & Astrophysics
The implementation of the GRAVITY+ Adaptive Optics (GPAO) system at VLTI enables unprecedented sensitivity and stability in optical interferometry. This allows high-precision characterization of directly imaged exoplanets at medium spectral resolution ...
Sauter J. R., von Stauffenberg A., Bourdarot G., Brandner W., Eisenhauer F., Kreidberg L., Labadie L., Scheithauer S., Trevascus D., van Boekel R.   +9 more
doaj   +1 more source

A method to derive self-consistent NLTE astrophysical parameters for four million high-resolution 4MOST stellar spectra in half a day with invertible neural networks

Astronomy & Astrophysics
Context. Modern spectroscopic surveys have the capacity to obtain the spectra of millions of stars. However, classical spectroscopic methods can often be computationally expensive, rendering them impractical for the analysis of large datasets. Aims.
Ksoll Victor F., Storm Nicholas, Bergemann Maria, Lee Katherine, Klessen Ralf S., Albarracín R., Guiglion Guillaume, Tautvaišienė Gražina   +7 more
doaj   +1 more source

STUDIUL STELELOR VARIABILE ÎN CADRUL ACTIVITĂȚILOR EXTRAȘCOLARE DE ASTRONOMIE

Studia Universitatis Moldaviae: Stiinte ale Educatiei
Această lucrare prezintă impactul activităților extrașcolare de astronomie, cu un accent special pe studiul stelelor variabile, asupra dezvoltării competenței investigaționale a elevilor.
USM ADMIN
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Magnetic fields in the intracluster medium with TNG-Cluster: Properties, morphology, and tangential anisotropy

Astronomy & Astrophysics
We characterized the magnetic field properties of 352 massive galaxy clusters from the TNG-Cluster magnetohydrodynamical (MHD) cosmological simulation with a focus on central magnetic field morphology in cool-core (CC) versus non-cool-core (NCC) clusters.
Lehle Katrin, Ruszkowski Mateusz, Nelson Dylan, Prunier Marine, Pillepich Annalisa   +4 more
doaj   +1 more source

Pulsation of EE Cam

, 2007
EE Cam is a previously little studied Delta Scuti pulsator with amplitudes between those of the HADS (High-Amplitude Delta Scuti stars) group and the average low-amplitude pulsators.
Breger M., Hog E., M. Breger, Olson E. H., P. Reegen, S. M. Rucinski   +5 more
core   +1 more source

Symposium: "Schule und Weltraum" 2024

Medienimpulse
Die IAU/NAEC Initiative, gemeinsam mit ESERO Austria und der Österreichischen Gesellschaft für Astronomie & Astrophysik laden erneut zum Symposium „Schule und Weltraum“ mit nationalen und internationalen Gästen ein – dieses mal auf der VEGA Sternwarte ...
Katharina Kaiser-Müller
doaj  

A comprehensive grid of massive binary evolution models for the Galaxy: Surface properties of post-mass-transfer stars

Astronomy & Astrophysics
Context. Massive stars often evolve in binary systems, and the interactions of these systems significantly affect their evolution. Massive stars in the Galaxy serve as valuable test beds for such interactions due to their proximity. Aims. We computed the
Jin Harim, Langer Norbert, Ercolino Andrea, de Mink Selma E.   +3 more
doaj   +1 more source