2010ApJ...722.1685M -
Astrophys. J., 722, 1685-1690 (2010/October-3)
Intermediate-velocity molecular gas at high northern galactic latitudes.
MAGNANI L. and SMITH A.J.
Abstract (from CDS):
We surveyed the CO(1-0) transition in 16 regions at Galactic latitudes >45° which contain compact dust cores less than half a degree in size with E(B - V) values ∼ 0.1 mag. We discovered three new intermediate-velocity molecular clouds and two high-latitude molecular clouds with more typical local standard of rest velocity (∼0 km/s). The three intermediate-velocity molecular clouds (detected in CO emission in 11 lines of sight) nearly double the number of previously known, CO-emitting clouds. In order to detect the CO(1-0) line, N(H2) values of at least 1019/cm2 are necessary, implying that the molecular/atomic fraction of these objects is significant and is in contrast to the primarily atomic lines of sight with log N(H2) < 17.3 detected in absorption by FUSE. The three molecular clouds are projected on and likely associated with a previously known intermediate-velocity H I feature known as the Intermediate Velocity Spur that may extend to the Galactic halo.
Abstract Copyright:
∼
Journal keyword(s):
ISM: clouds - ISM: kinematics and dynamics - ISM: molecules
Nomenclature:
Fig. 4, Table 1: [MS2010] GLLL.l+BB.b N=5.
Simbad objects:
9
View the references in ADS