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

Interstellar absorption lines up to   J ″= 10  in the  (2, 0)  band and up to   J ″= 6  in the  (3, 0)  band of the C  2   A  1 Π u – X  1 Σ +  g   system are detected toward star Cernis 52 (BD +31°640) in the Perseus molecular complex. The star lies in a reddened line of sight where various experiments have detected anomalous microwave emission spatially correlated with dust thermal emission. The inferred total C 2  column density of   N (C 2 ) = (10.5 ± 0.2) × 10 13  cm −2   is well correlated with that of CH, as expected from theoretical models, and is among the highest reported for translucent clouds with similar extinction. The observed rotational C 2  lines constrain the gas kinetic temperature  T  and the density   n = n (H) + n (H 2 )  of the intervening cloud to   T = 40 ± 10  K and   n = 250 ± 50 cm −3  , respectively. This is the first determination of the gas kinetic temperature and particle density of a cloud with known anomalous microwave emission.

Interstellar C 2 in the Perseus molecular complex: excitation temperature and density of a molecular cloud with anomalous microwave emission