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

Giant low surface brightness galaxies (gLSBGs) with the disk radii of up to130 kpc represent a challenge for currently accepted theories of galaxyformation and evolution, because it is difficult to build-up such largedynamically cold systems via mergers preserving extended disks. We summarizethe in-depth study of the sample of 7 gLSBGs based on the results of theperformed spectral long-slit observations at the Russian 6-m BTA telescope ofSAO RAS, surface photometry and HI data available in literature. Our studyrevealed that most gLSBGs do not deviate from the Tully-Fisher relation. Wediscovered compact elliptical (cE) satellites in 2 out of these 7 galaxies.Provided the low statistical frequencies of gLSBGs and cEs, the chancealignment is improbable, so it can indicate that gLSBGs and cE are evolutionaryconnected and gives evidence in favor of the major merger formation scenario.Other formation paths of gLSBGs are also discussed.

Observational insights on the formation scenarios of giant low surface brightness galaxies