J/ApJS/192/12 Photometry of the blazar PKS 0537-441 (Impiombato+, 2011)
Optical and infrared photometry of the blazar PKS 0537-441:
long and short timescale variability.
Impiombato D., Covino S., Treves A., Foschini L., Pian E., Tosti G.,
Fugazza D., Nicastro L., Ciprini S.
<Astrophys. J. Suppl. Ser., 192, 12 (2011)>
=2011ApJS..192...12I 2011ApJS..192...12I
ADC_Keywords: BL Lac objects ; Photometry, VRI ; Photometry, infrared ;
Active gal. nuclei
Keywords: BL Lacertae objects: individual (PKS 0537-441) - galaxies: active
Abstract:
We present a large collection of photometric data on the blazar
PKS 0537-441 in the VRIJHK bands taken in 2004-2009. At least three
flare-like episodes with months duration and >3mag amplitude are
apparent. The spectral energy distribution is consistent with a power
law, and no indication of a thermal component is found. We searched
for short timescale variability, and an interesting event was
identified in the J band, with a duration of ∼25 minutes.
Description:
The Rapid Eye Mount (REM) telescope is a 60cm fully robotic instrument
with cameras in NIR (REMIR) and optical (ROSS); located at the ESO
Cerro La Silla observatory (Chile). Both cameras have a field of view
of 10'x10' and imaging capabilities with the usual NIR (z', J, H, K)
and Johnson-Cousins VRI filters. The REM telescope has systematically
observed PKS 0537-441 for five years between 2004 December and 2009
March.
Objects:
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RA (2000) DE Designation(s)
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05 38 50.4 -44 05 09 PKS 0537-441 = QSO B0537-441
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 30 6365 Photometry of PKS0537-441 from December 2004 to
March 2009
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See also:
III/157 : An Ultraviolet Atlas of Quasar and Blazar Spectra (Kinney+, 1991)
J/A+A/520/A47 : Blazars in the Swift-BAT hard X-ray sky (Maselli+, 2010)
J/PASJ/60/161 : Multi-wave band emission from blazars (Yi+, 2008)
J/A+A/433/1163 : Spectral catalog of BeppoSAX blazars (Donato+, 2005)
J/A+A/436/799 : X- and gamma-ray fluxes of γ-ray-loud blazars (Fan+,
2005)
J/ApJ/537/101 : Optical Study for blazars. I. (Fan+, 2000)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 11 F11.5 d MJD Modified Julian Date of the observation
13- 15 I3 s Exp Exposure time
17 A1 --- Filt [JHKVRI] Filter used in the observation
19- 24 F6.3 mag mag Observed magnitude in Filt
26- 30 F5.3 mag e_mag Error in mag
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 30-Mar-2011