AVA AGN Variability Archive

Mrk 817

AVA #2

Simbad | NED | Bentz DB

RA (h:m:s)    DEC (d:m:s)  J2000:
14:36:22   58:47:39

Basic Information

Redshift 0.03146
E(B-V) 0.007 Schlafly & Finkbeiner (2011)
Black Hole Mass 7.6 M
L5000 44.9 (erg/s)
Comments: AGN STORM 2

Photometric Data Summary

Facility Cadence
(days)
Start
(MJD)
End
(MJD)
Swift 1.26 2009-06-14 2021-07-06
LCO 0.98 2020-06-24 2021-09-11 --

Spectroscopic Data Summary

Facility Cadence
(days)
Epochs Start
(MJD)
End
(MJD)
LCO 1.88 199 2020-06-06 2021-09-28 --

Data Citation

  • Kara et al. 2021, ApJ, in press

  • Please use this reference if you use the this object data.

    Photometry breakdown

    • LCO B V u g r i z -- --
      #Epochs 366 363 338 840 732 711 792 -- --
      Mean Mag (AB)
      Last 10 days
      14.54 14.01 14.43 14.54 13.72 13.79 13.96 -- --
    • Swift X-rays UVW2 UVM2 UVW1 U B V -- --
      #Epochs 0 181 361 167 168 166 171 -- --
      Mean Mag (AB)
      Last 10 days
      0.00 14.90 14.82 14.59 14.33 14.47 14.32 -- --