Other
Scientific paper
Dec 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.265..867n&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Vol. 265, NO. 4/DEC15, P. 867, 1993
Other
17
Scientific paper
The form of the galaxy angular correlation function derived from the Edinburgh-Durham Southern Galaxy Catalogue (EDSGC) has strong theoretical consequences for models of structure formation. In this paper, we investigate the effects of Galactic extinction close to the South Galactic Pole and plate-to-plate matching errors. These represent the most probable systematic errors within the EDSGC which could affect the angular correlation function. The distribution of extinction within the EDSGC area is obtained using the Stark et al. Hi map and the IRAS 100- micron flux map. We find that the amplitude of the whole EDSGC correlation function varies by less than δW = 0.003 for reddening ratios R_V_ in the range 3.25-6. This corresponds to a range in average extinction of A_B_ = 0.12-0.24. Simulations are carried out to assess the contribution to the correlation function from correlated and uncorrelated plate magnitude errors. The only simulation that affects the large-scale power seen in w(θ) is for correlated plate errors with a systematic plate-to-plate offset of {DELTA}m = 0.02. This represents an overall 0.4- mag difference between the ends of the EDSGC, which is inconsistent with checks carried out with external photometry. All other simulations have an insignificant effect on the large-scale form of the correlation function. These tests suggest that the large-scale power seen in the EDSGC correlation function is due to intrinsic clustering, and is not an artefact of the construction or location of the catalogue. A final, corrected w(θ) is presented at the end of this paper and represents the best estimate of this function from the EDSGC.
Collins Charles Aloysius
Nichol Robert C.
No associations
LandOfFree
The Edinburgh-Durham Southern Galaxy Catalogue - Part Six - the Stability of W/0 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 Edinburgh-Durham Southern Galaxy Catalogue - Part Six - the Stability of W/0, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Edinburgh-Durham Southern Galaxy Catalogue - Part Six - the Stability of W/0 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1300548