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| Query : 1998A&AS..132...83B |
1998A&AS..132...83B - Astron. Astrophys., Suppl. Ser., 132, 83-92 (1998/October-1)
The intraday variability in the radio-selected and X-ray-selected BL Lacertae objects.
BAI J.M., XIE G.Z., LI K.H., ZHANG X. and LIU W.W.
Abstract (from CDS):
Seven BL Lac objects have been photometrically observed in an effort to study the difference of optical intraday variability between the radio-selected BL Lac objects (RBLs) and X-ray-selected BL Lac objects (XBLs). The objects we observed are selected arbitrarily. They are four RBLs, PKS 0735+178, PKS 0754+101, OJ 287 and BL Lac, and three XBLs, H 0323+022, H 0548-322 and H 2154-304. During the observation all of them exhibited microvariation, and H 0323+022 and H 0548-322 sometimes showed brightness oscillation. PKS 0735+178 and BL Lac were in their faint states and not very active. It seems that RBLs do not show microvariability more frequently than XBLs.
Abstract Copyright: ∼
Journal keyword(s): BL Lacertae objects: general - galaxies: photometry
VizieR on-line data: <Available at CDS (J/A+AS/132/83): table2.dat>
Simbad objects: 7
| Number of rows : 7 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | QSO B0323+022 | BLL | 03 26 13.9481827296 | +02 25 14.675937708 | 17.05 | 16.55 | 15.3 | ~ | 242 | 1 | ||
| 2 | QSO B0548-322 | BLL | 05 50 40.5705144672 | -32 16 16.484718648 | 16.07 | 15.5 | ~ | 408 | 1 | |||
| 3 | QSO J0738+1742 | BLL | 07 38 07.39375312 | +17 42 18.9981506 | 16.76 | 16.22 | 15.78 | ~ | 992 | 1 | ||
| 4 | QSO B0754+10 | BLL | 07 57 06.64295154 | +09 56 34.8522544 | 15.43 | 15.00 | 15.99 | ~ | 439 | 1 | ||
| 5 | QSO J0854+2006 | BLL | 08 54 48.8749846272 | +20 06 30.639583620 | 15.91 | 15.43 | 15.56 | ~ | 2326 | 1 | ||
| 6 | QSO B2155-304 | BLL | 21 58 52.0652249880 | -30 13 32.118447792 | 13.36 | 13.09 | 12.62 | ~ | 1731 | 1 | ||
| 7 | NAME BL Lac | BLL | 22 02 43.2913536816 | +42 16 39.979416792 | 15.66 | 14.72 | ~ | 2258 | 1 |
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