Results 81 to 90 of about 178,075 (291)

Pulsating star research from Antarctica

open access: yesEPJ Web of Conferences, 2017
This invited talk discusses the pulsating star research from the heart of Antarctica and the scientific polar challenges in the extreme environment of Antarctica, and how the new polar technology could cope with unresolved stellar pulsation enigmas and ...
Chadid Merieme
doaj   +1 more source

Mathematics and explanation in astronomy and astrophysics [PDF]

open access: yes, 2007
The purpose of this paper is to expound and clarify the mathematics and explanations commonly employed in certain notable areas of astronomy and astrophysics.
McCabe, Gordon
core   +2 more sources

Molecular astronomy of cool stars and sub-stellar objects

open access: yes, 2009
The optical and infrared spectra of a wide variety of `cool' astronomical objects including the Sun, sunspots, K-, M- and S-type stars, carbon stars, brown dwarfs and extrasolar planets are reviewed.
Aoki W   +32 more
core   +1 more source

2D Copper MOF Membranes with Precise Pores for Ionic Memory

open access: yesAdvanced Science, EarlyView.
 . ABSTRACT Biological ion channels play a critical role in the complex physiological processes of living organisms. Inspired by these natural systems, we demonstrate the fabrication of ultrathin 2D copper‐based metal‐organic framework (CuMOF) films and their application to mimic key functionalities of biological membranes. Using a liquid–air interface
Hiran Jyothilal   +9 more
wiley   +1 more source

TESS Subgiant and Lower-red-giant Asteroseismology in the Continuous Viewing Zones

open access: yesThe Astrophysical Journal
Asteroseismology, the study of stellar oscillations, and stellar modeling both offer profound insights into the fundamental properties and evolution of stars.
Sophia Grusnis   +2 more
doaj   +1 more source

Outlook for ultraviolet astronomy [PDF]

open access: yes
A brief overview of galactic and extragalactic research is given with emphasis on the problems of temperature determination, chemical abundance determination, and the question about the energy sources for the high temperature regions.
Boehm-Vitense, E.
core   +1 more source

An HSC view of the CMASS galaxy sample. Halo mass as a function of stellar mass, size and S\'ersic index

open access: yes, 2018
Aims. We wish to determine the distribution of dark matter halo masses as a function of the stellar mass and the stellar mass profile, for massive galaxies in the BOSS CMASS sample. Methods.
Bahcall, Neta   +2 more
core   +1 more source

Direct Photocurrent Detection of Optical Vortex Based on the Orbital Photo Galvanic Effect: Progress, Challenge, and Perspective

open access: yesAdvanced Science, EarlyView.
Direct orbital angular momentum (OAM) detection through the orbital photogalvanic effect offers a scalable route for integrated optoelectronics. This perspective evaluates symmetry‐driven material selection and demonstrates how electrode matrices enable the resolution of complex, mixed OAM modes.
Jinluo Cheng   +5 more
wiley   +1 more source

Circumstellar shells, the formation of grains, and radiation transfer [PDF]

open access: yes
Advances in infrared astronomy during the last decade have firmly established the presence of dust around a large number of cold giant and supergiant stars.
Lefevre, Jean
core   +1 more source

Chemical evolution of galaxies — challenges for stellar astronomy [PDF]

open access: yesSymposium - International Astronomical Union, 1997
I discuss several current problems in understanding the chemical evolution of galaxies which have particular relevance for fundamental stellar astronomy.
openaire   +1 more source

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