Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...336..315k&link_type=abstract
Astronomy and Astrophysics, v.336, p.315-328 (1998)
Astronomy and Astrophysics
Astrophysics
8
Ism: Atoms, Ism: Clouds, Ism: Structure, Globular Clusters: Individual: Ngc 6541
Scientific paper
Observations are presented of high resolution interstellar Na I D and K I (lambda 7699 Angstroms) line profiles towards 7 stars in the globular cluster NGC 6541 and 3 field stars within 3°\ of the cluster. It is seen that the gas in this general direction (l, b ~ 350°, -11°) shows a complex structure, having the greatest number of components yet identified in one of our cluster sightlines, with absorption components detected over an LSR velocity range ~ -100 to +100 km s(-1) . We consider, as far as possible, the identification of the observed gas components. In the low-velocity gas we identify the extensive and nearby diffuse gas which contains the cold, dark and molecular clouds observed closer to the Galactic plane. Components are tentatively identified with both positive and negative peculiar velocity gas components produced by outlying gas in the Sagittarius arm, with gas in the Scutum-Crux and the 3 kpc arms, with an H I filament detected in radio mapping and with shell-like structures expanding from the Sco-Cen association. From the cluster star spectra some variability in the fine scale gas structure is seen on a scale of a few arcsecs.
Bates Brandon
Kemp Simon N.
Kennedy Dallas C.
No associations
LandOfFree
The structure of the interstellar gas towards stars in the globular cluster NGC 6541 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The structure of the interstellar gas towards stars in the globular cluster NGC 6541, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The structure of the interstellar gas towards stars in the globular cluster NGC 6541 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1573648