Lacertae Objects Within A Few Hours

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h2g2 - Constellations: Lacerta 'the Lizard' - Edited Entry

    https://h2g2.com/edited_entry/A39787023#:~:text=This%20indicates%20that%20BL%20Lacertae%20is%20very%20small,which%20makes%20it%20smaller%20than%20our%20solar%20system.
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Optical and radio variability of the BL Lacertae object AO ...

    https://www.aanda.org/articles/aa/pdf/2001/38/aa1594.pdf
    uxes were detected, while short-term variability up to 0 :5 mag in a few hours and 1 :3mag in one day was observed in the optical band. The optical data also include the results of the Whole Earth Blazar Telescope (WEBT) rst-light campaign organized in November 1997, involving a dozen optical observatories. The

XTE observations of PKS 2155-304 - NASA/ADS

    https://ui.adsabs.harvard.edu/abs/1996AAS...189.3103S/abstract
    The preliminary PCA light curve appears to show short-term variability with flux changes of about a factor 2 within a few hours, superimposed on a longer-timescale variability trend. We present the results of the timing and spectral analysis of the first XTE observations of the bright BL Lacertae object PKS 2155-304 (z=0.116), which were performed in May 1996 as part of a 2 weeks …

Multiband optical polarimetry of BL Lacertae objects with ...

    https://www.aanda.org/articles/aa/pdf/2001/34/aa1002.pdf
    BL Lacertae objects: individual: 3C 66A { BL Lacertae objects: individual: PKS 0735+178 1. Introduction Synchrotron radiation from a relativistic jet pointing to-ward the observer is thought to produce the emission of BL Lac objects, from radio up to X-rays and some-times soft gamma rays. The maximum power output of the synchrotron component is ...

Microvariability in BL Lacertae: “Zooming” into the ...

    https://www.mdpi.com/2075-4434/6/1/2/htm
    In this work, we present the results of our multi-band microvariability study of the famous blazar BL Lac. We performed microvariablity observations of the source in the optical VRI bands for four nights in 2016. We studied the intranight flux and spectral variability of the source in detail with an objective to characterize microvariability in the blazars, a frequently observed phenomenon in ...

Astronomy c ESO 2002 Astrophysics

    https://www.aanda.org/articles/aa/pdf/2002/29/aa2449.pdf
    Lacertae objects,togetherwith the at-s pectrumradioquasars, ... 24 hours of the day, gaps due to daylight being, in theory, extremely small. In practice, limitations due to bad weather ... BL Lacertae The AGN BL Lacertae lies within an elliptical galaxy (Miller etal.1978),atadistance z = 0:0688 0:0002(Miller&Hawley

Rapid X-Ray and Optical Variability in the X-Ray--selected ...

    https://ui.adsabs.harvard.edu/abs/1986ApJ...303..596G/abstract
    Results from X-ray and optical observations of the X-ray-discovered BL Lac object 1E 1402.3 + 0416 are presented, where the X-ray measurements were carried out with the Channel Multiplier Array (CMA) and Medium Energy experiment (ME) detectors on board Exosat. These measurements revealed an intensity decrease by a factor of two on a time scale of a few hours.

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