1998AJ....116.1074L

Query : 1998AJ....116.1074L

1998AJ....116.1074L - Astron. J., 116, 1074-1081 (1998/September-0)

An optical multicolor system for measuring galaxy redshifts and spectral types.

LIU C.T. and GREEN R.F.

Abstract (from CDS):

A method of obtaining approximate redshifts and spectral types of galaxies using a photometric system of six broad-bandpass filters is developed. The technique utilizes a smallest maximum difference approach rather than a least-squares approach, and does not consider a galaxy's apparent magnitude in the determination of its redshift. In an evalution of its accuracy using two distinct galaxy samples, the photometric redshifts are found to have a root mean square deviation of ±0.05 from spectroscopically determined redshifts. Possible systematic errors of the method are investigated, including the effects of post-starburst (``E+A'') galaxies and attempts to measure redshifts with incomplete color information. Applications of the technique are discussed.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Distances and Redshifts - Galaxies: Fundamental Parameters - Galaxies: Stellar Content

Simbad objects: 8

goto Full paper

goto View the references in ADS

Number of rows : 8
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ACO 963 ClG 10 17 03.4 +39 02 56           ~ 414 0
2 NGC 4449 EmG 12 28 11.118 +44 05 36.81 10.11 9.98 9.64 9.45   ~ 1192 1
3 NGC 5248 G 13 37 32.0145074088 +08 53 06.496982448   11.4       ~ 554 0
4 ZwCl 1358+6245 ClG 13 59 54.3 +62 30 36     18.5     ~ 370 0
5 3C 295 Sy1 14 11 20.6 +52 12 09   22.34 20.80 18.54   ~ 1021 4
6 ClG J1411+5211 ClG 14 11 24.4 +52 12 38     20.11     ~ 122 3
7 ClG 1601+42 ClG 16 03 13.800 +42 45 36.00           ~ 50 0
8 NGC 6181 H2G 16 32 20.96927 +19 49 35.7710   12.7       ~ 258 1

To bookmark this query, right click on this link: simbad:objects in 1998AJ....116.1074L and select 'bookmark this link' or equivalent in the popup menu