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| Query : 2021A&A...655A..93A |
2021A&A...655A..93A - Astronomy and Astrophysics, volume 655A93-93 (2021/11-1)
Long-term multi-band photometric monitoring of Mrk 501.
ARBET-ENGELS A., BAACK D., BALBO M., BILAND A., BRETZ T., BUSS J., DORNER D., EISENBERGER L., ELSAESSER D., HILDEBRAND D., IOTOV R., KALENSKI A., MANNHEIM K., MITCHELL A., NEISE D., NOETHE M., PARAVAC A., RHODE W., SCHLEICHER B., SLIUSAR V. and WALTER R.
Abstract (from CDS):
Aims. Radio-to-TeV observations of the bright nearby (z = 0.034) blazar Markarian 501 (Mrk 501), performed from December 2012 to April 2018, are used to study the emission mechanisms in its relativistic jet.
Methods. We examined the multi-wavelength variability and the correlations of the light curves obtained by eight different instruments, including the First G-APD Cherenkov Telescope (FACT), observing Mrk 501 in very high-energy (VHE) gamma-rays at TeV energies. We identified individual TeV and X-ray flares and found a sub-day lag between variability in these two bands.
Results. Simultaneous TeV and X-ray variations with almost zero lag are consistent with synchrotron self-Compton (SSC) emission, where TeV photons are produced through inverse Compton scattering. The characteristic time interval of 5-25 days between TeV flares is consistent with them being driven by Lense-Thirring precession.
Abstract Copyright: © ESO 2021
Journal keyword(s): BL Lacertae objects: individual: Mrk 501 - radiation mechanisms: non-thermal - radiative transfer - galaxies: active
VizieR on-line data: <Available at CDS (J/A+A/655/A93): fig1bat.dat fig1xrts.dat fig1xrth.dat fig1vban.dat fig1uvot.dat fig1ferm.dat fig1fact.dat fig1radi.dat>
Simbad objects: 3
| Number of rows : 3 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | M 1 | SNR | 05 34 31.8 | +22 01 03 | ~ | 6516 | 1 | |||||
| 2 | Z 184-50 | BLL | 11 04 27.3140835504 | +38 12 31.798495872 | 13.50 | 12.90 | 8.31 | ~ | 2841 | 1 | ||
| 3 | Z 225-7 | BLL | 16 53 52.21668403 | +39 45 36.6088754 | 14.09 | 14.15 | 13.29 | 8.26 | ~ | 2304 | 2 |
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