2000A&AS..144..481V


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.01CET00:58:01

2000A&AS..144..481V - Astron. Astrophys., Suppl. Ser., 144, 481-485 (2000/June-2)

Optical observations of five X-ray selected BL Lacertae objects.

VILLATA M., RAITERI C.M., POPESCU M.D., SOBRITO G., DE FRANCESCO G., LANTERI L. and OSTORERO L.

Abstract (from CDS):

We present optical data obtained with the 1.05 m telescope of the Torino Astronomical Observatory for five X-ray selected BL Lacertae objects. The data are in the Johnson's B, V, and Cousins' R bands. As the observing periods include the pointings of the Satellite per Astronomia X ``Beppo'' (BeppoSAX), our optical information will be comparable with the X-ray observations for a better understanding of the properties of these objects. The present data also provide optical information on sources that have been rarely observed in the optical band. Variability on short time scales (a few days) was found only for 1ES 1959+650.

Abstract Copyright:

Journal keyword(s): BL Lacertae objects: general - BL Lacertae objects: individual: 1ES 0145+138, 1ES 0323+022, 1ES 1028+511, 1ES 1118+424, 1ES 1959+650

VizieR on-line data: <Available at CDS (J/A+AS/144/481): tab2-6.dat>

Simbad objects: 5

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Number of rows : 5

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 QSO B0145+138 BLL 01 48 29.7009147811 +14 02 17.852183006     17.90 16.7   ~ 45 0
2 QSO B0323+022 BLL 03 26 13.9474696478 +02 25 14.675022985   17.05 16.55 15.3   ~ 222 1
3 QSO B1028+511 BLL 10 31 18.5251431722 +50 53 35.821637845   17.25 16.98 16.3   ~ 153 1
4 9Y-MST J1120+4212 BLL 11 20 48.0622899025 +42 12 12.469811109   17.55 17.11 16.9   ~ 98 1
5 QSO B1959+650 BLL 19 59 59.8525497024 +65 08 54.651170114     12.8 11.21   ~ 510 2

    Equat.    Gal    SGal    Ecl

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2020.12.01-00:58:01

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