English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A surprisingly large fraction (70%) of hot, carbon dominated atmosphere (DQ)white dwarfs are magnetic and/or photometrically variable on short timescalesup to ~1000 s. However, here we show that the hot DQ magnetic white dwarf SDSSJ000555.90-100213.5 is photometrically variable by 11% on a longer timescale,with a period of 2.110 +/- 0.045 days. We find no evidence of the targetfluctuating on short timescales at an amplitude of <+/-0.5%. Short period hotDQ white dwarfs have been interpreted as non-radial pulsators, but in the caseof SDSS J0005-1002, it is more likely that the variability is due to themagnetic hot DQ white dwarf rotating. We suggest that some hot DQ white dwarfs,varying on short timescales, should be more carefully examined to ascertainwhether the variability is due to rotation rather than pulsation. All hot DQsshould be monitored for long period modulations as an indicator of rotation andmagnetism.

SDSS J000555.90-100213.5: a hot, magnetic carbon-atmosphere WD rotating with a 2.1 day period