Results 91 to 100 of about 1,424,303 (245)

Dust from asymptotic giant branch stars: relevant factors and modelling uncertainties [PDF]

open access: yes, 2014
The dust formation process in the winds of Asymptotic Giant Branch stars is discussed, based on full evolutionary models of stars with mass in the range 1M⊙ 6M6 8M⊙, and metallicities 0.001 < Z < 0.008. Dust grains are assumed to form in an isotropically
P. Ventura   +7 more
semanticscholar   +1 more source

First giant branch and asymptotic giant branch stars in nearby aggregates

open access: yesThe Astronomical Journal, 1991
The properties of the brightest red stars in several aggregates in the Galaxy are compared with theoretical models. 22 asymptotic giant branch (AGB) stars are identified, four of which are in the thermally pulsing AGB (TPAGB) phase and four of which are TPAGB carbon stars.
Olin J. Eggen, Icko, Jr. Iben
openaire   +1 more source

Photoelectron Spectroscopy of the Phosphorus Monosulfide (PS) and Phosphorus Monoxide (PO) Radicals

open access: yesSmall Structures, Volume 7, Issue 1, January 2026.
Sketch of the experiment to measure the photo electron spectrum of the PS radical produced in situ with a mixture of PH3, H2S and F atoms. PO and PS radicals are the smallest units of phosphorus oxides and phosphorus sulfides, respectively, two rich families of refractory compounds widely employed in industrial and technological applications. These two
Pedro Recio   +10 more
wiley   +1 more source

The Isaac Newton Telescope Monitoring project: Stellar population in the IC 10 dwarf irregular galaxy [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2019
We have conducted an optical monitoring survey of IC 10 dwarf irregular galaxy in the Local Group, using the Isaac Newton Telescope (INT) with the wide-field camera (WFC), to identify the Asymptotic Giant Branch stars (AGBs).
Mahtab Gholami, Mohammad Taghi Mirtorabi
doaj   +1 more source

Parameterising the Third Dredge-up in Asymptotic Giant Branch Stars [PDF]

open access: yesPublications Astronomical Society of Australia, 2002
We present new evolutionary sequences for low and intermediate mass stars (1−6M ⊙) for three different metallicities, Z = 0.02, 0.008, and 0.004. We evolve the models from the pre-main sequence to the thermally-pulsing asymptotic giant branch phase.
A. Karakas, J. Lattanzio, O. Pols
semanticscholar   +1 more source

North American crayfish: A quest for the biggest catch

open access: yes
Ecology, Volume 107, Issue 9, September 2026.
Caitlin C. Bloomer   +12 more
wiley   +1 more source

Random planar trees and the Jacobian conjecture

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract We develop a probabilistic approach to the celebrated Jacobian conjecture, which states that any Keller map (i.e. any polynomial mapping F:Cn→Cn$F\colon \mathbb {C}^n \rightarrow \mathbb {C}^n$ whose Jacobian determinant is a non‐zero constant) has a compositional inverse which is also a polynomial. The Jacobian conjecture may be formulated in
Elia Bisi   +5 more
wiley   +1 more source

Population II Distance Indicators: RR Lyrae Variables, Tip of the Red Giant Branch (TRGB) Stars and J-Branch Asymptotic Giant Branch (JAGB/Carbon) Stars

open access: yes, 2023
We review the theoretical underpinnings, evolutionary status, calibrations and current applications of three bright Population II extragalactic distance indicators: Tip of the Red Giant Branch (TRGB) stars, RR Lyrae variables and J-Branch Asymptotic ...
Madore, Barry F., Freedman, Wendy L.
core  

Thermally-pulsing asymptotic giant branch stars in the Magellanic Clouds [PDF]

open access: yes, 2009
We present the latest results of a theoretical project aimed at investigating the properties of thermally-pulsing asymptotic giant branch (TP-AGB) stars in different host systems.
GRANATO GIAN LUIGI   +6 more
core   +1 more source

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