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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Observations in the near- and mid-ultraviolet (NUV: 2000--3500$\AA$)performed with the NASA Swift UVOT instrument have revealed thatoptically-normal SNe Ia feature NUV-optical color evolution that can be dividedinto NUV-blue and NUV-red groups, with roughly one-third of the observed eventsexhibiting NUV-blue color curves. Combined with an apparent correlation betweenNUV-blue events and the detection of unburned carbon in the optical spectra,the grouping might point to a fundamental difference within the normal SN Iaclassfication. Recognizing the dramatic temporal evolution of the NUV-opticalcolors for all SNe Ia, as well as the existence of this sub-division, isimportant for studies that compare nearby SNe Ia with intermediate or high-$z$events, for the purpose of the cosmological utilization of SNe Ia. SN 2011fe isshown to be of the NUV-blue groups, which will be useful towards interpretationof the gamma-ray line results from the INTEGRAL SPI campaign on SN 2011fe.

Studying Supernovae in the Near-Ultraviolet with the NASA Swift UVOT Instrument