Results 31 to 40 of about 5,483 (223)
A Strong Test of Electroweak Theory Using Pulsating DB White Dwarf Stars as Plasmon Neutrino Detectors [PDF]
The Astrophysical Journal, 2004 4 pages emulateapj, 3 figures, accepted for ApJ ...
Winget, D. E. +4 more
openaire +2 more sources
The asteroseismological potential of the pulsating DB white dwarf stars CBS 114 and PG 1456+103 [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 10 pages, 10 embedded figures, 3 embedded tables.
Handler, Gerald +2 more
openaire +3 more sources
Amplitude and frequency variations of oscillation modes in the pulsating DB white dwarf star KIC 08626021 [PDF]
Astronomy & Astrophysics, 2015 Aims. We use the Kepler data accumulated on the pulsating DB white dwarf KIC 08626021 to explore in detail the stability of its oscillation modes, searching in particular for evidences of nonlinear behaviors. Methods. We analyse nearly two years of uninterrupted short cadence data, concentrating in particular on identified triplets due to stellar ...
Zong, W. +4 more
openaire +2 more sources
Two new pulsating DB Stars from the EC survey, EC 04207−4748 and EC 05221−4725 [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 We report the discovery of pulsations in two DB stars found in the Edinburgh–Cape blue object survey. The light curve of EC 04207−4748 appears to be dominated by a strong variation at 2235 μHz (447 s) and its first overtone near 4475 μHz (223 s). Two other peaks appear in the periodograms of all three data sets for this star; near 2370 μHz (∼420 s) and
D. Kilkenny +4 more
openaire +1 more source
Detection Method for Space Dim and Weak Group Targets in Dense Star Fields [PDF]
Jisuanji gongchengThe high similarity between spatial targets and background features in dense star fields can easily lead to numerous false alarms during detection. In addition, space targets often exhibit weak and dim features under long-distance detection conditions ...
LI Yiran, NIE Hongbin, YANG Ziqian, BIAN Chunjiang
doaj +1 more source
Stark Broadening and White Dwarfs
Open Astronomy, 2011 White dwarf and pre-white dwarfs are the best types of stars for the application of Stark broadening research results in astrophysics, since in the atmospheres of these stars physical conditions are very favorable for this line broadening mechanism - in ...
Dimitrijević Milan S. +3 more
doaj +1 more source
A survey of pulsating DA and DB white dwarfs Observations with the Whole Earth Telescope
EPJ Web of Conferences, 2017 White dwarfs represent the end point of stellar evolution for the majority of stars. As such, they are excellent astrophysical laboratories. They are structurally simple, with electron degenerate cores surrounded by thin surface layers of helium and/or ...
Provencal J. L. +2 more
doaj +1 more source
Odessa Astronomical Publications, 2007 It has been shown quite recently (Morales-Rueda et al., 2003) that dB stars, extreme horisontal branch (EHB) objects in high probability all belong to binary systems.
V. -V. Pustynski, I. Pustylnik
doaj +1 more source
High-velocity Circumstellar Gas Orbiting a White Dwarf Star
The Astrophysical JournalNumerous white dwarf stars are known to be orbited by disks of gas and dust. To date, broad, ∼300 km s ^−1 wide, gaseous circumstellar absorption features have only been reported for the already iconic WD 1145+017, where one is witnessing the breakup of ...
B. Zuckerman +8 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Objectives The association between exposure to dinutuximab beta (DB) and event‐free survival (EFS) or overall survival (OS) of neuroblastoma patients was assessed using data collected during three clinical trials (five cohorts). Methods A systematic review (March 2026) was conducted to identify relevant studies (prospective; registered DB ...
Przemysław Holko +19 more
wiley +1 more source