Results 71 to 80 of about 10,468 (212)

Nation‐Building in the Wake of Empire: Identifying Patterns of Minority Policies in the Aftermath of Soviet Collapse

open access: yesNations and Nationalism, Volume 32, Issue 2, Page 386-401, April 2026.
ABSTRACT The collapse of the USSR forced newly independent states to forge national identities while grappling with imperial legacies. This study investigates nation‐building strategies in post‐Soviet states during 1990–1999, using the Nation‐Building Policies (NBP) dataset from the ETHNICGOODS project, which includes all socially and politically ...
Emre Amasyalı, Andrei Tarasov
wiley   +1 more source

The AH Pictoris Syndrome: Continuous Trains of Stunted Outbursts in Novalike Variables

open access: yesThe Astrophysical Journal
Novalike variables are a subgroup of cataclysmic variables (CVs) that—unlike dwarf novae—do not exhibit strong brightenings in their long-term light curves.
Albert Bruch
doaj   +1 more source

Development of a Period Analysis Algorithm for Detecting Variable Stars in Time-Series Observational Data

open access: yesJournal of Astronomy and Space Sciences, 2019
The purpose of this study was to develop a period analysis algorithm for detecting new variable stars in the time-series data observed by charge coupled device (CCD). We used the data from a variable star monitoring program of the CBNUO.
Kim, Dong-Heun   +3 more
doaj   +1 more source

A Construction of an Automatic Observation System for Bright and Long Period Variable Stars [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2006
An automatic observation system has been constructed at Chungbuk National University for the purpose of monitoring the bright and long period variable stars effectively.
Joh-Na Yoon   +3 more
doaj   +1 more source

A spectrophotometric survey of cataclysmic variable stars

open access: yesThe Astronomical Journal, 1982
A sample of dwarf novae and other cataclysmic variable stars were observed using the multichannel spectrophotometer on the 5-m Hale reflector. A preliminary qualitative description of the continuum distributions is given and a discussion of the Balmer emission-line fluxes is made.
J. B. Oke, R. A. Wade
openaire   +1 more source

Asian Precipitation Changes in the Past Millennium: Projection of Volcanic Forcing Onto Internal Mode

open access: yesGeophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Asian precipitation changes over multiple time scales have been extensively studied, yet the relative roles of external forcing and internal variability in shaping the large‐scale Asian precipitation pattern over the past millennium remain underexplored. Here, we demonstrate that the tripolar pattern of decadal precipitation variability across
Wenmin Man   +4 more
wiley   +1 more source

ASASSN-16dv: Superhumps in a Long-period X-Ray-luminous Dwarf Nova

open access: yesThe Astronomical Journal
Combining a long-term light curve, four-color rapid photometry, and spectroscopic and X-ray observations with a 27-day time base TESS light curve, we present the first dedicated study of ASASSN-16dv, detected as a transient in the All-Sky Automated ...
Albert Bruch   +5 more
doaj   +1 more source

2MASSJ22560844+5954299: the newly discovered cataclysmic star with the deepest eclipse

open access: yes, 2015
Context: The SW Sex stars are assumed to represent a distinguished stage in CV evolution, making it especially important to study them. Aims: We discovered a new cataclysmic star and carried out prolonged and precise photometric observations, as well as ...
Dimitrov, D.   +5 more
core   +1 more source

Characterization and Localization of Chemical Explosions and Lightning Flashes by a Flotilla of Stratospheric Balloons

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract On 3 August 2021, a flotilla of four Heliotrope solar hot air balloons was launched from central New Mexico (USA). The balloons, equipped with microbarometers, flew from sunrise to sunset at altitudes between 17 and 22 km. During the flight, eight chemical explosions ranging from 45 to 136 kg TNT equivalent and a thunderstorm occurred in the ...
T. Farges   +5 more
wiley   +1 more source

The nautre of dwarf novae and related systems [PDF]

open access: yes
The high energy emissions from cataclysmic variables (interacting binary systems containing an accreting white dwarf) and the relationship of the high energy emission of these stars to their optical properties were investigated.
Lampton, M.
core   +1 more source

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