Results 31 to 40 of about 3,339,915 (332)

Confronting uncertainties in stellar physics II. exploring differences in main-sequence stellar evolution tracks [PDF]

open access: yes, 2016
We assess the systematic uncertainties in stellar evolutionary calculations for low- to intermediate-mass, main-sequence stars. We compare published stellar tracks from several different evolution codes with our own tracks computed using the stellar ...
R. Stancliffe   +3 more
semanticscholar   +1 more source

Formation Channels of Single and Binary Stellar-Mass Black Holes [PDF]

open access: yesHandbook of Gravitational Wave Astronomy, 2021
These are exciting times for binary black hole (BBH) research. LIGO and Virgo detections are progressively drawing a spectacular fresco of BBH masses, spins and merger rates.
M. Mapelli
semanticscholar   +1 more source

Radiative stellar feedback in galaxy formation: Methods and physics [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
Radiative feedback (RFB) from stars plays a key role in galaxies, but remains poorly understood. We explore this using high-resolution, multifrequency radiation-hydrodynamics (RHD) simulations from the Feedback In Realistic Environments (FIRE) project.
P. Hopkins   +7 more
semanticscholar   +1 more source

Galaxy And Mass Assembly (GAMA) : galaxy close pairs, mergers and the future fate of stellar mass [PDF]

open access: yes, 2014
ASGR acknowledges STFC and SUPA funding that were used to do this work. GAMA is funded by the STFC (UK), the ARC (Australia), the AAO and the participating institutions.We use a highly complete subset of the Galaxy And Mass Assembly II (GAMA-II) redshift
De Propris, R.   +130 more
core   +1 more source

Confronting uncertainties in stellar physics: calibrating convective overshooting with eclipsing binaries [PDF]

open access: yes, 2015
As part of a larger program aimed at better quantifying the uncertainties in stellar computations, we attempt to calibrate the extent of convective overshooting in low to intermediate mass stars by means of eclipsing binary systems.
R. Stancliffe   +3 more
semanticscholar   +1 more source

Constraining planet structure from stellar chemistry : the cases of CoRoT-7, Kepler-10, and Kepler-93 [PDF]

open access: yes, 2015
This work was supported by Fundação para a Ciência e a Tecnologia (FCT) through the research grant UID/FIS/04434/2013. P.F., N.C.S., and S.G.S. also acknowledge support from FCT through Investigador FCT contracts of reference IF/01037/2013, IF/00169/2012,
Mortier, Annelies   +31 more
core   +3 more sources

Hot super-Earths stripped by their host stars

open access: yesNature Communications, 2016
Theory predicts a deficit of super-Earth sized planets, which orbit close to their host star. Here, Lundkvist et al. use data from the NASA Kepler mission to show that this deficit is also seen in observations, thereby providing new insight into ...
M. S. Lundkvist   +28 more
doaj   +1 more source

Databases of Publications and Observations as a Part of the Crimean Astronomical Virtual Observatory

open access: yesOpen Astronomy, 2015
We describe the main principles of formation of databases (DBs) with information about astronomical objects and their physical characteristics derived from observations obtained at the Crimean Astrophysical Observatory (CrAO) and published in the ...
Shlyapnikov A.   +2 more
doaj   +1 more source

The stellar atmosphere physical system I. Phenomenological definition and representation of a stellar atmosphere [PDF]

open access: yesSerbian Astronomical Journal, 2018
This paper is the first in a series of two that deals with the physical and numerical grounds of stellar atmosphere modelling. After a phenomenological definition of a star and stellar atmosphere, the physics that shapes the stellar atmosphere ...
Crivellari Lucio
doaj   +1 more source

Stellar population gradients in galaxy discs from the CALIFA survey : the influence of bars [PDF]

open access: yes, 2014
We acknowledge financial support from the research projects under grants AYA2010-21887-C04-03, AYA2010-21322-C03-03 and AYA2010-15081 by the Spanish Ministerio de Ciencia e Innovación.While studies of gas-phase metallicity gradients in disc galaxies are ...
Wisotzki, L.   +73 more
core   +1 more source

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