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

The slope of the interstellar reddening line in the J-H vs. H-Ks diagram ofthe 2MASS survey in the direction of the North America and Pelican nebulae, theL935 dust cloud and the Cyg OB2 association is determined. The MK types wereeither classified by C. J. Corbally or collected from the literature. The ratioE(J-H)/E(H-Ks) = 2.0 is obtained by taking the average for the four groups ofspectral classes: O3--B1, B2--B6, B7--B9.5 and red clump giants. The obtainedratio is larger than the `typical' value, 1.7-1.8.

2MASS Two-color Interstellar Reddening Line in the Direction of the North America and Pelican Nebulae and the Cyg OB2 Association