J/A+A/593/A91 Mrk 421 multi-wavelength variability, 2007-2009 (Ahnen+, 2016)
Long-term multi-wavelength variability and correlation study of Markarian 421
from 2007 to 2009.
Ahnen M.L., Ansoldi S., Antonelli L.A., Antoranz P., Babic A., Banerjee B.,
Bangale P., Barres de Almeida U., Barrio J.A., Becerra Gonzalez J.,
Bednarek W., Bernardini E., Biasuzzi B., Biland A., Blanch O., Bonnefoy S.,
Bonnoli G., Borracci F., Bretz T., Buson S., Carosi A., Chatterjee A.,
Clavero R., Colin P., Colombo E., Contreras J.L., Cortina J., Covino S.,
Da Vela P., Dazzi F., De Angelis A., De Lotto B., de Ona Wilhelmi E.,
Di Pierro F., Dominguez A., Dominis Prester D., Dorner D., Doro M.,
Einecke S., Eisenacher Glawion D., Elsaesser D., Fernandez-Barral A.,
Fidalgo D., Fonseca M.V., Font L., Frantzen K., Fruck C., Galindo D.,
Garcia Lopez R.J., Garczarczyk M., Garrido Terrats D., Gaug M.,
Giammaria P., Godinovic N., Gonzalez Munoz A., Gora D., Guberman D.,
Hadasch D., Hahn A., Hanabata Y., Hayashida M., Herrera J., Hose J.,
Hrupec D., Hughes G., Idec W., Kodani K., Konno Y., Kubo H., Kushida J.,
La Barbera A., Lelas D., Lindfors E., Lombardi S., Longo F., Lopez M.,
Lopez-Coto R., Majumdar P., Makariev M., Mallot K., Maneva G.,
Manganaro M., Mannheim K., Maraschi L., Marcote B., Mariotti M.,
Martinez M., Mazin D., Menzel U., Miranda J.M., Mirzoyan R., Moralejo A.,
Moretti E., Nakajima D., Neustroev V., Niedzwiecki A., Nievas Rosillo M.,
Nilsson K., Nishijima K., Noda K., Nogues L., Orito R., Overkemping A.,
Paiano S., Palacio J., Palatiello M., Paneque D., Paoletti R., Paredes J.M.,
Paredes-Fortuny X., Pedaletti G., Perri L., Persic M., Poutanen J.,
Prada Moroni P.G., Prandini E., Puljak I., Rhode W., Ribo M., Rico J.,
Rodriguez Garcia J., Saito T., Satalecka K., Schultz C., Schweizer T.,
Shore S.N., Sillanpaa A., Sitarek J., Snidaric I., Sobczynska D.,
Stamerra A., Steinbring T., Strzys M., Takalo L., Takami H., Tavecchio F.,
Temnikov P., Terzic T., Tescaro D., Teshima M., Thaele J., Torres D.F.,
Toyama T., Treves A., Verguilov V., Vovk I., Ward J.E., Will M., Wu M.H.,
Zanin R. (The MAGIC Collaboration), Blinov D.A., Chen W.P., Efimova N.V.,
Forne E., Grishina T.S., Hovatta T., Jordan B., Kimeridze G.N.,
Kopatskaya E.N., Koptelova E., Kurtanidze O.M., Kurtanidze S.O.,
Lahteenmaki A., Larionov V.M., Larionova E.G., Larionova L.V.,
Ligustri R., Lin H.C. McBreen B., Morozova D.A., Nikolashvili M.G.,
Raiteri C.M., Ros J.A., Sadun A.C., Sigua L.A., Tornikoski M.,
Troitsky I.S., Villata M.
<Astron. Astrophys. 593, A91 (2016)>
=2016A&A...593A..91A 2016A&A...593A..91A (SIMBAD/NED BibCode)
ADC_Keywords: BL Lac objects ; Galaxies, Markarian ; Gamma rays ; Radio sources
Keywords: astroparticle physics -
BL Lacertae objects: individual: Markarian 421 -
radiation mechanisms: non-thermal
Abstract:
We perform an extensive multi-band variability and correlation study
of the TeV blazar Mrk 421 on year time scales, which can bring
additional insight on the processes responsible for its broadband
emission. We observed Mrk 421 in the very high energy gamma-ray range
with the Cherenkov telescope MAGIC-I from March 2007 to June 2009. The
2.3-year long MAGIC light curve is complemented with data from the
Swift/BAT and RXTE/ASM satellites and the KVA, GASP-WEBT, OVRO, and
Metsahovi telescopes from February 2007 to July 2009, allowing for an
excellent characterisation of the multi-band variability and
correlations over year time scales.
Description:
Data of Mrk 421 are presented for the following instruments and bands
from radio to very high energy gamma-rays: Metsahovi (37GHz), OVRO
(15GHz), GASP (R band), RXTE/ASM (2-10keV), Swift/BAT(15-50keV),
MAGIC (>400 GeV). The observation period is from 10th February 2007
(MJD 54141) to 23rd July 2009 (MJD 55035). Figure 2 includes the light
curves of the above mentioned instruments. Figure 3 and 4 show the
fractional variability F_var for these light curves of the above
mentioned light curves for the whole time span (Fig. 3) and for the
separate time spans P1, P2, P3 (Fig. 4).
Objects:
----------------------------------------------------
RA (2000) DE Designation(s)
----------------------------------------------------
11 04 27.31 +38 12 31.8 Mrk 421 = QSO B1101+384
----------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tabfig2.dat 112 1750 Light curves of Mrk 421 from radio to VHE from
MJD 54141 to MJD 55035
tabfig3.dat 77 10 Fractional variabilities of Mrk 421 from radio
to VHE from MJD 54141 to MJD 55035
tabfig4.dat 69 12 Fractional variabilities of Mrk 421 from radio
to VHE for MJD 54167-54233, MJD 54438-54625
and MJD 54800-54997
--------------------------------------------------------------------------------
See also:
J/A+A/545/A117 : Monitoring of Mrk 421 at 15 and 24 GHz (Lico+, 2012)
J/A+A/559/A75 : 43GHz observation of the blazar Mrk 421 (Blasi+, 2013)
J/A+A/576/A126 : The 2009 multiwavelength campaign on Mrk 421 (Aleksic+, 2015)
J/A+A/578/A22 : Mrk 421 in March 2010 (Aleksic+, 2015)
J/ApJS/222/6 : 4.5yr obs. of Mrk 421 with ARGO-YBJ + Fermi (Bartoli+, 2016)
Byte-by-byte Description of file: tabfig2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 15 A15 --- Inst Instrument
17- 25 A9 --- Band Band/energy range
27- 38 E12.6 Hz bFreq band frequency, lower boundary
40- 51 E12.6 Hz BFreq band frequency, upper boundary
53- 64 F12.6 d MJDSt Modified Julian Date, observation (time bin)
start
66- 77 F12.6 d MJDEnd Modified Julian Date, observation (time bin)
end
79- 86 A8 --- x_Flux Flux unit
88- 99 E12.6 --- Flux Flux
101-112 E12.6 --- e_Flux Flux error
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tabfig3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 15 A15 --- Inst Instrument
17- 25 A9 --- Band Band/energy range
27- 40 A14 --- Selec Date selection, all data or simultaneous (1)
42- 50 F9.6 [Hz] logFreq Frequency
52- 59 F8.6 [Hz] e_logFreq Frequency error
61- 68 F8.6 --- Fvar Fractional variability (2)
70- 77 F8.6 --- e_Fvar Fractional variability error
--------------------------------------------------------------------------------
Note (1): Date selection defines for the calculation of Fvar if all data from
the light curves from X-ray to radio is used (as shown in Figure 2) or if
only simultaneous data to the MAGIC light curve is selected. Of the MAGIC
light curve all data is selected.
Note (2): If the fractional variability is 0 or negative, the resulting value is
not given in the table. Then either no variablity is given or the instrument
is not sensitive enough to detect it.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tabfig4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 15 A15 --- Inst Instrument
17- 25 A9 --- Band Band/energy range
27- 38 F12.6 d MJDSt Modified Julian Date, observation (time bin)
start (1)
40- 51 F12.6 d MJDEnd Modified Julian Date, observation (time bin)
end (1)
53- 60 F8.6 --- Fvar Fractional variability (2)
62- 69 F8.6 --- e_Fvar Fractional variability error
--------------------------------------------------------------------------------
Note (1): Time range of light curve for calculation of Fvar.
Note (2): If the fractional variability is 0 or negative, the resulting value is
not given in the table. Then either no variablity is given or the instrument
is not sensitive enough to detect it.
--------------------------------------------------------------------------------
Acknowledgements:
Ann-Kristin Overkemping Edelhoff, ann-kristin.overkemping(at)tu-dortmund.de
(End) A.-K. Overkemping Edelhoff [TU Dortmund], P. Vannier [CDS] 02-Jun-2016