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

We have discovered two molecular features at radial velocities of -35 km/sand 0 km/s toward the infrared Double Helix Nebula (DHN) in the Galactic centerwith NANTEN2. The two features show good spatial correspondence with the DHN.We have also found two elongated molecular ridges at these two velocitiesdistributed vertically to the Galactic plane over 0.8 degree. The two ridgesare linked by broad features in velocity and are likely connected physicallywith each other. The ratio between the 12CO J=2-1 and J=1-0 transitions is 0.8in the ridges which is larger than the average value 0.5 in the foreground gas,suggesting the two ridges are in the Galactic center. An examination of the Kband extinction reveals a good coincidence with the CO 0 km/s ridge and isconsistent with a distance of 8 +/-2 kpc. We discuss the possibility that theDHN was created by a magnetic phenomenon incorporating torsional Alfv\'en waveslaunched from the circumnuclear disk (Morris, Uchida & Do 2006) and present afirst estimate of the mass and energy involved in the DHN.

Discovery of possible molecular counterparts to the infrared Double Helix Nebula in the Galactic center