Home

Optical Blazars, Quasar time delays AGNs Monitoring of Blazars Blazar logical deduction Force of Coriolis Astronomical Observatory Gallery of images 1 Gallery of images 2 Gallery of images 3 Gallery of images 4 Photos of sun pillars Addresses of interest

Discovery of AO Tau Discovery of AF Cam


adolfodarriba@
observatoriolascasqueras.es




Castellano Ingles
Detection of the time delays in AGNs

In this study, I will mainly focus on finding a behavior pattern common to all AGNs. Each AAVSO light curve corresponds to 1,000 days.

Although I show the three types of explosions, as I have defined it in my previous article (it is the first link of this Web), Type III Explosions are the most energetic. Therefore, they are the ones that best adjust to secondary explosions. As their behavior are the least random, it is easier to find a pattern of behavior among them all.

As seen in the following light curves of the AAVSO, in most of them there is a time delay in the AGNs studied. The maximum brightness in the optician is the point that I consider as the Main Explosion, marked as 0 days. It is also observed that the maximum brightness in Gamma rays usually occurs about 3 days before.

The time delay in all subclasses of AGNs (Blazars, Quasars, Seyfert 2 galaxies, etc.) is the same. The only thing that is appreciable in its curves of light, is its lower light amplitude.

What is more difficult for me is to detect the exact moment of the main explosion and secondary explosions. As I gather more light curves, I will attach it and reduce the errors. That is, I want to further define the light curve and its time delay.

In the graph below, a light curve of an Explosion of Type III is theoretically represented, with a maximum brightness very marked in the 85 days, as bright as the main explosion. If the AGN were really a Type I Explosion, secondary explosions would not be detected in most cases. If it were an Explosion of Type II, the maximums in the secondary explosions would be more representative, but it would not have a maximum in the 85 days.




    • Basic concepts
    - The Blazares are still predictable. Light curves 1,000 days.

    - There are three types of main explosions. Type I, Type II and Type III.

    - At the time of a principal explosion, a cascade of stable elements is produced as radioactive.

    - The radioactive decays of the different elements cause secondary explosions.

    - Depending on the sharpness of the secondary explosions, the width of the jet can be known.

    - As radioactive elements behave like well-defined atomic clocks,
    when a delay occurs in secondary explosions, it is a clear indication of their time delay.
    That is, each Blazar has its own time delay.


    • Types of main explosions
    - Those of Type I, usually move near their minimum brightness, without large variations occurring
    when they reach their secondary explosions, although sometimes there is some significant increase.
    Its most important feature is that no explosions are detected between 60 and 100 days.
    Its trajectory is usually flat or even descending slightly.

    - Those of type II, have a greater movement within the light curve,
    detecting an increase in brightness at 75 and 90 days later.

    - Those of type III, are the most energetic explosions.
    A secondary explosion is detected at 85 days, almost as bright as the main one.
    They are the most predictable. Its movement within the light curve is similar to those of Type II.

    • Concept in Gamma flashes
    - In Gamma rays, the main explosion usually happens about 3 to 10 days before the optic.

    - In secondary explosions usually occurs with the same time delay as the optical
    or about 6 days later.

    - Occasionally, a Gamma flash is observed three or four weeks apart from the previous,
    which would correspond to a maximum of light in the optic.

    - This symmetry is produced because the two lobes are connected and we would be seeing the Gamma flash
    coming from the opposite lobe. That is, we would see a symmetry in the Gamma flash,
    not being the same in their detection, although physically they would be the same.

    - The time taken from the first Gamma flash to the second is the distance that the two lobes are separated.
    It is not strictly correct because space-time is dragged and this greatly influences this appreciation.

    - It is possible that the symmetry is produced by the precession of the two emitting lobes, when rotating.
    Hence, the symmetry of each blazar never occurs in a certain exact time.

    • Mathematic expression
    Each Blazar has its own time delay, so I apply a constant (D).
    In my theoretical model above, the constant could be: D = 0.010
    That is, when the maximum brightness occurs at 463 days (T), its time delay corresponds (Td):

    Td = T x D // Td = 463 x 0.010 // Td = 5 Days
    (The maximum would occur 5 days later)

    and when it reaches 735 days (T), it corresponds to:

    Td = T x D // Td = 735 x 0.010 // Td = 7 Days
    (The maximum would occur 7 days later)

    As can be seen, the time delay (Td) is proportional to the elapsed time (T).







  • Temporary Delay. Cadmium 109


    Outburst Type I
    Blazar
    BL LAC
    (22 02 43.29139 +42 16 39.9803) z=0.069















    Outburst Type I
    Seyfert 1 Galaxy
    3C 390.3
    (18 42 08.9899 +79 46 17.128) z=0.056159

















    Outburst Type I
    Quasar
    3C 454.3
    (22 53 57.74798 +16 08 53.5611) z=0.859001

















    Outburst Type I
    Quasar
    3C 279
    (12 56 11.16657 -05 47 21.5247) z=0.53620












    Light curve. NASA's Fermi Gamma-ray Space Telescope









    Outburst Type II
    Blazar
    S5 2007+77
    (20 05 31.004 +77 52 43.27) z=0.342
    The Astronomer’s Telegram. Nº 8635 Burst Gamma ray. 4 Feb 2016












    Light curve. NASA's Fermi Gamma-ray Space Telescope









    Outburst Type II
    Quasar
    PKS 0736+01
    (07 39 18.03390 +01 37 04.6179) z=0.191










    Light curve. NASA's Fermi Gamma-ray Space Telescope









    Outburst Type III
    Seyfert 1 Galaxy
    1RXS J190910.3+665222
    (19 09 10.8964 +66 52 21.373) z=0.191















    Outburst Type II
    Blazar
    PKS 0716+71
    (07 21 53.44846 +71 20 36.3634) z=0.300












    Light curve. NASA's Fermi Gamma-ray Space Telescope









    Outburst Type III
    Blazar
    OT 081
    (17 51 32.81855 +09 39 00.7288) z=0.322












    Light curve. NASA's Fermi Gamma-ray Space Telescope









    Outburst Type II
    Quasar
    S5 1044+71
    (10 48 27.6 +71 43 36) z=1.1500






    Light curve. NASA's Fermi Gamma-ray Space Telescope









    Outburst Type III
    Blazar
    S5 1803+78
    (18 00 45.684 +78 28 04.02) z=0.680
    The Astronomer’s Telegram. Nº 7933 Burst Gamma ray. 20 Aug 2015












    Light curve. NASA's Fermi Gamma-ray Space Telescope









    Outburst Type III
    Blazar
    S4 0954+65
    (09 58 47.24510 +65 33 54.8181) z=0.367












    Light curve. NASA's Fermi Gamma-ray Space Telescope









    Outburst Type III
    Seyfert 1 Galaxy
    S4 1030+61
    (10 33 51.42726 +60 51 07.3301) z=1.40095










    Light curve. NASA's Fermi Gamma-ray Space Telescope









    Outburst Type III
    Blazar
    OJ 287
    (08 54 48.87493 +20 06 30.6410) z=0.306
    The Astronomer’s Telegram. Nº 9489 Burst Gamma ray. 13 Sep 2016












    Light curve. NASA's Fermi Gamma-ray Space Telescope









    Outburst Type III
    Blazar
    S2 0109+224
    (01 12 05.82470 +22 44 38.7868) z=0.265















    Outburst Type I
    Blazar
    PKS 0048-09
    (00 50 41.31738756 -09 29 05.2102688) z=0.635















    Outburst Type II
    Blazar
    QSO B0506+056
    (05 09 25.9645434784 +05 41 35.333636817) z=0.3365















    Outburst Type I
    Quasar
    S4 1800+44
    (18 01 32.31481 +44 04 21.9004) z=0.663








    Light curve. NASA's Fermi Gamma-ray Space Telescope









    Outburst Type ?
    Quasar
    4C 29.45
    (11 59 31.83390975 +29 14 43.8268741) z=0.72475













    Outburst Type ?
    Quasar
    1ES 0806+52.4
    (08 09 49.18673 +52 18 58.2507) z=0.13710















    Outburst Type III
    Blazar
    PKS 0735+178
    (07 38 07.39376 +17 42 18.9983) z=0.424















    Outburst Type I
    Blazar
    QSO B1553+113
    (15 55 43.0440 +11 11 24.366) z=0.360













    Outburst Type ?
    Blazar
    NSV 19409
    (12 30 14.0894 +25 18 07.136) z=0.135













    Outburst Type ?
    Quasar
    PKS 1510-089
    (15 12 50.53292 -09 05 59.8296) z=0.360











    Outburst Type III
    Quasar
    B2 1420+32
    (14 22 30.37890 +32 23 10.4446) z=0.68144








    Light curve. NASA's Fermi Gamma-ray Space Telescope









    Outburst Type III
    Blazar
    S5 1803+78
    (18 00 45.684 +78 28 04.02) z=0.680













    Outburst Type III
    Blazar
    BL LAC
    (22 02 43.29139 +42 16 39.9803) z = 0.069











    Outburst Type ??
    Blazar
    S4 0954+65
    (09 58 47.24510 +65 33 54.8181) z=0.367











    Outburst Type ?
    Quasar
    4C 29.45
    (11 59 31.83390975 +29 14 43.8268741) z=0.72475











    Outburst Type III
    Blazar
    S4 1749+70
    (17 48 32.84043 +70 05 50.7684) z=0.770








    Light curve. NASA's Fermi Gamma-ray Space Telescope









    Explosión Tipo III
    Blazar
    OT 355
    (17 34 20.57853650 +38 57 51.4430945) z=0.975









    Light curve. NASA's Fermi Gamma-ray Space Telescope









    Outburst Type III
    Blazar
    PKS 0735+178
    (07 38 07.39376 +17 42 18.9983) z=0.424











    Outburst Type I
    Blazar
    B2 1147+24
    (11 50 19.2122083392 +24 17 53.834712576) z=0.2090











    Explosión Tipo III
    Blazar
    OJ 287
    (11 50 19.2122083392 +24 17 53.834712576) z=0.2090











    Explosión Tipo ?
    Blazar
    AU CVN
    (13 10 28.66385420 +32 20 43.7828340) z=0.99591











    Explosión Tipo ??
    Blazar
    4C 31.03
    (01 12 50.3328920232 +32 08 17.435303556) z=0.600











    • Conclusions
    • - The Blazars have a temporary delay. This indicates that the observed light is very close to the event horizon of the black hole.

      - They have a recognizable pattern. They are predictable.

      - Secondary explosions correspond to radioactive decays and are in direct proportion to the intensity emitted. By comparing the intensity of these secondary explosions, we can know their amount of heavy elements.

      - All AGNs have their maximum and minimum periods, equal. This confirms that all AGNs are the same objects, viewed from different perspectives.

      - Although the maximum brightness at different wavelengths is related, there is a time delay of a few days with respect to other types of wavelengths detected, so that light emission does not occur exactly in the same place. Even in the main explosion, the maximum brightness in Gamma rays usually happens about 3 days earlier than in the optic.

      - The higher the frequency detected, for example, in Gamma rays with respect to optics, the faster its brightness can change. This indicates that the gamma-ray emitting region is much smaller than in the optical region.

      - By comparing the degree of time delay with other astrophysical magnitudes, we could discover related concepts.

      - Depending on the Blazar, the main explosion as secondary explosions may be more acute or flattened, in the curves of light. We could know why the cone of the emitting Jet is narrower than others.



      • Gratefulness

    • I thank the AAVSO for permission to publish their light curves and the M1 Group for their important contribution. Also to all observers who have made these observations, without them, this work would not have been possible. To all of them, thank you very much.

      Especially my partner Diego Rodríguez from the M1 Group. Gianpiero Locatelli, Ramón Naves, David Cejudo, Jose Luis Martin, Jordi Berenguer and Fernando Huet Grondona from the Supernova Group. Also Dave Hinzel and Heinz-Bernd Eggenstein from the AAVSO. And to Daniel Mendicini from the LIADA Group.

      Also the NASA Fermi Group to authorize publish their light curves in gamma rays for a greater understanding of these objects.




      Home Ir arriba