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 derive the entire dust extinction (Av) map for the Large Magellanic Cloud(LMC) estimated from the color excess at near-infrared wavelengths. Using thepercentile method we recently adopted to evaluate Av distribution along theline of sight, we derive the three-dimensional(3D)Av maps of the three massivestar forming regions of N44, N79 and N11 based on the IRSF/SIRIUS point sourcecatalog. The 3D AV maps are compared with the hydrogen column densities N(H) ofthree different velocity components where one is of the LMC disk velocity andthe other two are of velocities lower than the disk velocity. As a result, weobtain 3D dust geometry suggesting that gas collision is on-going between thedifferent velocity components. We also find difference in the timing of the gascollision between the massive star forming regions, which indicates that thegas collision in N44, N79 and N11 occurred later than that in 30 Doradus. Inaddition, difference by a factor of two in Av/N(H) is found between thevelocity components for N44, while significant difference is not found for N79and N11. From the 3D geometry and Av/N(H) in each star forming region, wesuggest that the massive star formation in N44 was induced by an externaltrigger of tidal interaction between the LMC and the SMC, while that in N79 andN11 is likely to have been induced by internal triggers such as gas convergingfrom the galactic spiral arm and expansion of a supershell although thepossibility of tidal interaction cannot be ruled out.

Three-dimensional geometry and dust/gas ratios in massive star forming regions over the entire LMC as revealed by IRSF/SIRIUS survey