1999A&AS..139..183R

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 Query : 1999A&AS..139..183R

1999A&AS..139..183R - Astron. Astrophys., Suppl. Ser., 139, 183-197 (1999/October-1)

The IUE INES System: Improved data extraction procedures for IUE.

RODRIGUEZ-PASCUAL P.M., GONZALEZ-RIESTRA R., SCHARTEL N. and WAMSTEKER W.

Abstract (from CDS):

We present the extraction and processing of the IUE Low Dispersion spectra within the framework of the ESA IUE Newly Extracted Spectra'' (INES) System. Weak points of SWET, the optimal extraction implementation to produce the NEWSIPS output products (extracted spectra) are discussed, and the procedures implemented in INES to solve these problems are outlined. The more relevant modifications are: 1) the use of a new noise model, 2) a more accurate representation of the spatial profile of the spectrum and 3) a more reliable determination of the background. The INES extraction also includes a correction for the contamination by solar light in long wavelength spectra. Examples showing the improvements obtained in INES with respect to SWET are described. Finally, the linearity and repeatability characteristics of INES data are evaluated and the validity of the errors provided in the extraction is discussed.

Journal keyword(s): methods: data analysis - space vehicles - techniques: image processing - ultraviolet: general

Full paper

 Number of rows : 6
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 HD 60753 * 07 33 27.3186651576 -50 35 03.315962580 6.02 6.587 6.680     B3IV 77 0
2 BD+75 325 HS* 08 10 49.4903003712 +74 57 57.931973676 8.002 9.23 9.50 9.698 9.884 sdO5 242 0
3 V* V351 Pup No* 08 11 38.3931386664 -35 07 30.288675216           ~ 120 0
4 V* AG Dra Sy* 16 01 41.0120557968 +66 48 10.135056672 11.50 11.06 9.74 8.52   K3IIIep 490 0
5 BD+28 4211 HS* 21 51 11.0221915656 +28 51 50.367627468 8.922 10.25 10.58 10.656 10.831 sdO2VIIIHe5 773 0
6 QSO B2155-304 BLL 21 58 52.0652249880 -30 13 32.118447792   13.36 13.09 12.62   ~ 1664 1

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2022.12.04-09:16:04