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Host galaxy subtraction of TeV candidate BL Lacertae objects

K. Nilsson, M. Pasanen, L. O. Takalo, E. Lindfors, A. Berdyugin, S. Ciprini, J. Pforr
2007 Astronomy and Astrophysics  

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2007 pre-print
arXiv:0709.2533v1 fatcat:7sdxlq6ttnfz5hgll3shhai36i
2007 accepted
arXiv:0709.2533v2 fatcat:ug7cpkkkhfeqjmbs2qgcfkiskq
We have derived R-band host galaxy fluxes of 20 TeV candidate BL Lacertae objects as a function of aperture radius and FWHM. The results are given as correction tables, that list the fluxes (in mJy) of all "contaminating" sources (host galaxy + significant nearby objects) as a function of aperture radius and FWHM. We found that the derived fluxes depend strongly on aperture radius, but the FWHM has only a minor effect (a few percent). We also discuss the implications of our findings to optical
more » ... onitoring programs and potential sources of error in our derived fluxes. During this work we have also constructed new calibration star sequences for 9 objects and present the finding charts and calibrated magnitudes.
doi:10.1051/0004-6361:20077624 fatcat:vkboizrq6ndkxm3scccjadbhha
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K. Nilsson, M. Pasanen, L. O. Takalo, E. Lindfors, A. Berdyugin, S. Ciprini, J. Pforr. "Host galaxy subtraction of TeV candidate BL Lacertae objects." Astronomy and Astrophysics 475.1 (2007) 199-207