RGU-photometry of a starfield close to M 67 and space density behaviour in the anticentre-northern galactic meridian

Details RGU-photometry of a starfield close to M 67 and space density behaviour in the anticentre-northern galactic meridian RGU-photometry of a starfield close to M 67 and space density behaviour in the anticentre-northern galactic meridian

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26as...57..419f&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 57, Sept. 1984, p. 419-425. Research supported by the Schwei

Astronomy and Astrophysics

Astrophysics

7

Astronomical Photometry, Galactic Structure, Space Density, Astrometry, Giant Stars, Late Stars, Main Sequence Stars

Scientific paper

A photographic three-colour photometry in the RGU system in a starfield near M 67 (ι = 210°.6, b = + 32?2) of 1.70 square degrees containing 759 stars down to the limiting magnitude of G = l6m.5, with no interstellar absorption, led to logarithmic space density functions for the photometrically separable populations of late- type giants and main-sequence stars of populations I and II (Tables II, III and IV; Figs. 3, 4 and 5). They are all compared with the corresponding functions in Karaali's (1984) Praesepe field (ι = 205°.9, b = + 32°.4), and have, in both fields, practically the same zero-points and about the same (negative) gradients, with the exception of the giant- functions, where differences appear, as expected from corresponding differences in the apparent densities present in the G-fractioned two-colour diagrams of figures 2. The present field was investigated with the purpose to check the gradually more detalled isodensity pattern in the anticentre-northern quarter of the galactic meridian, given by drawing the lines connecting the three (logarithmic) isodensity points D* (= log D + 10) = 5, 5.5 and 6 for the stars with 4m < M(G) <5m of population II on the solar vectors to : SA 51 and SA 57 ; SA 51, SA 54 and 57 ; SA 51, Praesepe, SA 54 and SA 57 (solid; dashed ; dotted lines in Fig. 1, respectively). The results are shown in figure 6, containing : (i) the mean isodensity pattern given by, and (ii) the z-scale height of the (4m

Affiliated with

Also associated with

No associations

Rating

RGU-photometry of a starfield close to M 67 and space density behaviour in the anticentre-northern galactic meridian 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 RGU-photometry of a starfield close to M 67 and space density behaviour in the anticentre-northern galactic meridian, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and RGU-photometry of a starfield close to M 67 and space density behaviour in the anticentre-northern galactic meridian will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1389548