CCD Δa-photometry of NGC 1866 (Maitzen+, 2001)

Details CCD Δa-photometry of NGC 1866 (Maitzen+, 2001) CCD Δa-photometry of NGC 1866 (Maitzen+, 2001)

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ycat..33719005m&link_type=abstract

VizieR On-line Data Catalog: J/A+A/371/L5. Originally published in: 2001A&A...371...L5M

Physics

Magellanic Clouds, Photometry: Narrow-Band, Stars: Peculiar

Scientific paper

We report on the detection of the first extragalactic, classical chemically peculiar (CP) stars more than 100 years after the discovery of this group. Using the tool of CCD Δa-photometry, eight definite positive detections in the globular-like stellar cluster NGC 1866 and its surrounding in the Large Magellanic Cloud were made. More than 1950 objects within a radius of 9.5' of the cluster center down to 20.5 magnitude were observed in this three filter, narrow band photometric system. Averaging more than 70 individual frames for all three filters yielded a 3σ detection limit of 0.015mag for stars with V=20mag. Furthermore we found three objects with significantly negative Δa-values indicating either an Ae/shell or λ Bootis nature. The overall percentage of chemically peculiar stars for NGC 1866 (1.5%) seems lower than for the majority of open clusters in our Milky Way whereas the incidence within the LMC field is decisively less (0.3%).
For a description of the Δa photometric system, see e.g.
(2 data files).

Affiliated with

Also associated with

No associations

Rating

CCD Δa-photometry of NGC 1866 (Maitzen+, 2001) 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 CCD Δa-photometry of NGC 1866 (Maitzen+, 2001), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CCD Δa-photometry of NGC 1866 (Maitzen+, 2001) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-949475