Metal-rich globular clusters in the Galaxy. III - The 'X-ray' globular cluster NGC 6441. IV - A color-magnitude diagram for NGC 6304

Details Metal-rich globular clusters in the Galaxy. III - The 'X-ray' globular cluster NGC 6441. IV - A color-magnitude diagram for NGC 6304 Metal-rich globular clusters in the Galaxy. III - The 'X-ray' globular cluster NGC 6441. IV - A color-magnitude diagram for NGC 6304

Jan 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...203...97h&link_type=abstract

Astrophysical Journal, vol. 203, Jan. 1, 1976, pt. 1, p. 97-123.

Astronomy and Astrophysics

Astronomy

34

Abundance, Color-Magnitude Diagram, Globular Clusters, Milky Way Galaxy, Ubv Spectra, X Ray Sources, Cepheid Variables, Luminous Intensity, Star Distribution, Tables (Data), X Ray Astronomy

Scientific paper

Results are reported for UBV photoelectric and photographic observations of about 700 stars in the southern globular cluster NGC 6441 and of about 385 stars in or near the G2 globular cluster NGC 6304. Features in the color-magnitude diagrams of the clusters are found which indicate that NGC 6441 is one of the most metal-rich clusters known in the Galaxy and that NGC 6304 is a moderately metal-rich cluster. No unusual features in the color-magnitude diagram of NGC 6441 are detected that might account for its appearing in the error box of the X-ray source 3U 1746-37, except possibly the anomalous position of the variable star V6 in the diagram. Estimates are made of the foreground reddening, distance moduli, and integrated absolute visual magnitudes of both clusters. It is shown that NGC 6441 has a normal M/L ratio and is located at perigalacticon. NGC 6304 is shown to be located 450 pc above the galactic plane and possibly to contain two RR Lyrae variables.

Affiliated with

Also associated with

No associations

Rating

Metal-rich globular clusters in the Galaxy. III - The 'X-ray' globular cluster NGC 6441. IV - A color-magnitude diagram for NGC 6304 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 Metal-rich globular clusters in the Galaxy. III - The 'X-ray' globular cluster NGC 6441. IV - A color-magnitude diagram for NGC 6304, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal-rich globular clusters in the Galaxy. III - The 'X-ray' globular cluster NGC 6441. IV - A color-magnitude diagram for NGC 6304 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1571538