Results 11 to 20 of about 1,181,220 (330)
The Instability Strip for Pre--Main-Sequence Stars [PDF]
The Astrophysical Journal, 1998 We investigate the pulsational properties of Pre--Main-Sequence (PMS) stars by means of linear and nonlinear calculations. The equilibrium models were taken from models evolved from the protostellar birthline to the ZAMS for masses in the range 1 to 4 ...
Baade D. +9 more
core +7 more sources
The ZZ Ceti instability strip revisited [PDF]
Open Astronomy, 2000 Koester D., Allard N. F.
doaj +3 more sources
A NEW MAPPING OF THE CEPHEID INSTABILITY STRIP
Odessa Astronomical Publications, 2017 Results are presented for a new mapping of the instability strip for Milky Way Cepheids based upon eld reddenings for 40 stars (mainly members of open clusters and associations), color excesses for 53 stars obtained from reddening-independent systems ...
David G. Turner
doaj +3 more sources
Empirical instability strip for classical Cepheids I. The Large Magellanic Cloud galaxy [PDF]
Astronomy & Astrophysics, 2023 The instability strip (IS) of classical Cepheids has been extensively studied theoretically. Comparing the theoretical IS edges with those obtained empirically, using the most recent Cepheids catalogs available, can provide us with insights into the ...
F. Espinoza-Arancibia +4 more
semanticscholar +5 more sources
Re-defining the Empirical ZZ Ceti Instability Strip [PDF]
The Astrophysical Journal, 2004 We use the new ZZ Ceti stars (hydrogen atmosphere white dwarf variables; DAVs) discovered within the Sloan Digital Sky Survey (Mukadam et al. 2004) to re-define the empirical ZZ Ceti instability strip.
A. F. M. Costa +8 more
core +4 more sources
Pulsating and Nonpulsating Components of Detached Eclipsing Binaries in the δ Scuti Instability Strip [PDF]
The Astronomical JournalPulsating detached eclipsing binary systems are crucial for studying the internal structure of oscillating stars. These systems are advantageous because binary effects on pulsations are minimal, allowing for more accurate determinations of fundamental ...
Filiz Kahraman Aliçavuş +5 more
doaj +2 more sources
ARE THE s-CEPHEIDS CROSSING THE INSTABILITY STRIP FOR THE FIRST TIME?
Odessa Astronomical Publications, 2012 Using the literature data on secular period changes reported for the small-amplitude Cepheids (s-Cepheids) it is shown that these stars are not crossing the instability strip for the first time. After correction of the observed pulsational chracteristics
S. M. Andrievsky +2 more
doaj +2 more sources
IS POLARIS LEAVING THE CEPHEID INSTABILITY STRIP?
Odessa Astronomical Publications, 2017 Although Polaris is generally regarded as an overtone pulsator that may soon switch to pulsation in the fundamental mode, it is argued that the variable is actually crossing the instability strip for the first time and is in the process of leaving the ...
D. G. Turner
doaj +2 more sources
Analysis of the abnormal wear of the pantograph contact strip through combined experimental and simulation approaches [PDF]
Scientific ReportsThe carbon contact strip of pantograph collects current from the overhead catenary to power the train, inevitably causing wear to the contact surface. This paper addresses the abnormal wear of the pantograph carbon contact strip, a challenged accident ...
Xingshuai Zhi +8 more
doaj +2 more sources
Non-variable stars inside the ZZ Ceti instability strip [PDF]
Open Astronomy, 1995 Kepler S. O. +4 more
doaj +2 more sources