1999A&AS..134...89T


C.D.S. - SIMBAD4 rel 1.7 - 2021.06.12CEST16:59:46

1999A&AS..134...89T - Astron. Astrophys., Suppl. Ser., 134, 89-101 (1999/January-1)

30 years of multi-wavelength observations of 3C 273.

TUERLER M., PALTANI S., COURVOISIER T.J.-L., ALLER M.F., ALLER H.D., BLECHA A., BOUCHET P., LAINELA M., McHARDY I.M., ROBSON E.I., STEVENS J.A., TERAESRANTA H., TORNIKOSKI M., ULRICH M.-H., WALTMAN E.B., WAMSTEKER W. and WRIGHT M.C.H.

Abstract (from CDS):

We present a wide multi-wavelength database of most observations of the quasar c obtained during the last 30 years. This database is the most complete set of observations available for an active galactic nucleus (AGN). It contains nearly 20000 observations grouped together into 70 light curves covering 16 orders of magnitude in frequency from the radio to the γ-ray domain. The database is constituted of many previously unpublished observations and of most publicly available data gathered in the literature and on the World Wide Web (WWW). It is complete to the best of our knowledge, except in the optical (UBV) domain where we chose not to add all observations from the literature. In addition to the photometric data, we present the spectra of c obtained by the International Ultraviolet Explorer (IUE) satellite. In the X-ray domain, we used the spectral fit parameters from the literature to construct the light curves. Apart from describing the data, we show the most representative light curves and the average spectrum of c. The database is available on the WWW in a homogeneous and clear form and we wish to update it regularly by adding new observations.

Abstract Copyright:

Journal keyword(s): astronomical data bases: miscellaneous - quasars: general - quasars: individual: 3C 273 - radio continuum: galaxies - ultraviolet: galaxies - X-rays: galaxies

Simbad objects: 3

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Number of rows : 3

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5451 1
2 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6422 3
3 GRS G081.70 +00.50 SFR 20 39 01.6 +42 19 38           O4.5 972 0

    Equat.    Gal    SGal    Ecl

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