Results 81 to 90 of about 1,202 (206)
EPJ Web of Conferences, 2013 The recognition that planets may survive the late stages of stellar evolution, and the prospects for finding them around White Dwarfs, are growing. We discuss two aspects governing planetary survival through stellar evolution to the White Dwarf stage ...
Bonsor Amy +4 more
doaj +1 more source
Odessa Astronomical Publications, 2012 The modern review of the stars which are located at the position of asymptotic giant branch at the HRdiagram is presented. The most interesting problems connected to these objects are noted, as well as attention is paid to classification and to the ...
L. S. Kudashkina
doaj +1 more source
Heterochrony and Oophagy Underlie the Evolution of Giant Filter‐Feeding Lamniform Sharks
Evolution &Development, Volume 27, Issue 1, March 2025.Retention of juvenile craniofacial characteristics by paedomorphosis (heterochrony) may have facilitated the evolution of gigantism in filter‐feeding lamniform sharks, by increasing the efficiency of prey acquisition. ABSTRACT Evolutionary transitions toward gigantic body sizes have profound consequences for the structure and dynamics of ecological ...
Joel H. Gayford +3 more
wiley +1 more source
Pulsations of intermediate–mass stars on the asymptotic giant branch [PDF]
Astronomy Letters, 2017 26 pages, 10 figures, 2 tables, accepted to Astronomy ...
openaire +3 more sources
Revisiting Variable Stars Near Globular Clusters South of −29° Declination
Astronomische Nachrichten, Volume 346, Issue 2, February 2025.ABSTRACT We review an often‐cited but seldom‐accessed catalogue by Fourcade and Laborde (1966) of 785 variable stars near 47 southern Galactic globular clusters, and recover the locations of 85 stars that were not incorporated into subsequent variable star catalogues and hence have become “lost” to the literature.
Andrew C. Layden +7 more
wiley +1 more source
Systematic Search for Water Fountain Candidates Using the Databases of Circumstellar Maser Sources
The Astrophysical Journal Supplement SeriesWater fountains (WFs) are thought to be objects in the morphological evolution of the circumstellar envelopes of low- and intermediate-mass evolved stars, transitioning from spherically symmetric to asymmetric shapes.
Haichen Fan +8 more
doaj +1 more source
Pulsating post-asymptotic giant branch stars [PDF]
Monthly Notices of the Royal Astronomical Society, 1993 Numerical stability analyses of envelopes of post-asymptotic giant branch stars show instabilities towards radial pulsations over a broad range of effective temperatures, although only stars with sufficiently high luminosity-to-mass ratios and high enough iron abundances are excited.
Alfred Gautschy, Alfred Gautschy
openaire +2 more sources
White Dwarf Stars in the Big Data Era
Astronomische Nachrichten, Volume 346, Issue 1, January 2025.ABSTRACT White dwarf stars are the most common endpoint of stellar evolution. Therefore, these old, numerous and compact objects provide valuable information on the late stages of stellar evolution, the physics of dense plasma and the structure and evolution of our Galaxy.
Maria Camisassa
wiley +1 more source
Dynamic Random Intersection Graph: Dynamic Local Convergence and Giant Structure
Random Structures &Algorithms, Volume 66, Issue 1, January 2025.ABSTRACT Random intersection graphs containing an underlying community structure are a popular choice for modeling real‐world networks. Given the group memberships, the classical random intersection graph is obtained by connecting individuals when they share at least one group.
Marta Milewska +2 more
wiley +1 more source