2014AJ....147...19B


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.31CET12:50:18

2014AJ....147...19B - Astron. J., 147, 19 (2014/January-0)

All-weather calibration of wide-field optical and NIR surveys.

BURKE D.L., SAHA A., CLAVER J., AXELROD T., CLAVER C., DEPOY D., IVEZIC Z., JONES L., SMITH R.C. and STUBBS C.W.

Abstract (from CDS):

The science goals for ground-based large-area surveys, such as the Dark Energy Survey, Pan-STARRS, and the Large Synoptic Survey Telescope, require calibration of broadband photometry that is stable in time and uniform over the sky to precisions of a percent or better. This performance will need to be achieved with data taken over the course of many years, and often in less than ideal conditions. This paper describes a strategy to achieve precise internal calibration of imaging survey data taken in less than "photometric" conditions, and reports results of an observational study of the techniques needed to implement this strategy. We find that images of celestial fields used in this case study with stellar densities ∼1/arcmin2 and taken through cloudless skies can be calibrated with relative precision ∼0.5% (reproducibility). We report measurements of spatial structure functions of cloud absorption observed over a range of atmospheric conditions, and find it possible to achieve photometric measurements that are reproducible to 1% in images that were taken through cloud layers that transmit as little as 25% of the incident optical flux (1.5 magnitudes of extinction). We find, however, that photometric precision below 1% is impeded by the thinnest detectable cloud layers. We comment on implications of these results for the observing strategies of future surveys.

Abstract Copyright:

Journal keyword(s): atmospheric effects - methods: observational - surveys - techniques: photometric

Simbad objects: 10

goto Full paper

goto View the reference in ADS

Number of rows : 10

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 CD-35 534 * 01 32 04.1450391401 -34 29 14.801652492   10.43 10.03     F 3 0
2 CD-32 9927 * 14 11 46.3240134300 -33 03 14.379335532   10.793 10.444 10.12 10.106 A4 85 0
3 CD-44 12736 PM* 18 36 25.9487430436 -44 18 36.919462094   10.83 10.22     G0 196 0
4 HD 189910 * 20 03 18.3242262502 -25 08 44.489089377   10.04 9.63     F0V 4 0
5 SDSS J210330.85-002446.4 WD* 21 03 30.8418692742 -00 24 46.250397502           DC 4 0
6 HD 207474 * 21 49 10.3523208303 -02 02 24.108094098   10.00 9.51     F3V 4 0
7 PB 5113 WD* 22 14 58.3722540833 -00 25 11.904811813   18       DA 17 0
8 LP 877-23 PM* 22 52 41.0353308036 -20 35 32.995847106   13.02 11.90     ~ 104 0
9 Feige 110 HS* 23 19 58.3995050606 -05 09 56.170282845 10.360 11.45 11.50 11.970 12.145 sdO8VIIIHe5 560 1
10 LP 642-79 WD* 23 30 40.5211580385 +01 00 47.656508272   18.0   16.7   DA 11 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2014AJ....147...19B and select 'bookmark this link' or equivalent in the popup menu


2020.10.31-12:50:18

© Université de Strasbourg/CNRS

    • Contact