Monitoring of the optical and 2.5 – 11.7 µm spectrum and mid-IR imaging of the Seyfert 1 galaxy Mrk 279 with ISO
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Author
Santos-Lleó, M.
Clavel, J.
Schulz, B.
Altieri, B.
Barr, P.
Alloin, D.
Bertram, R.
Crenshaw, D. M.
Edelson, R. A.
Giveon, U.
Horne, K.
Huchra, J. P.
Kaspi, S.
Kriss, G. A.
Krolik, J. H.
Malkan, M. A.
Malkov, Yu. F.
Netzer, H.
O, P. T.
Peterson, B. M.
Pogge, R. W.
Pronik, V. I.
Qian, B.-C.
Reichert, G. A.
Rodríguez-Pascual, P. M.
Sergeev, S. G.
Tao, J.
Tokarz, S.
Wagner, R. M.
Wamsteker, W.
Note: Order does not necessarily reflect citation order of authors.
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https://doi.org/10.1051/0004-6361:20010103Metadata
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Santos-Lleó, M., J. Clavel, B. Schulz, B. Altieri, P. Barr, D. Alloin, P. Berlind, et al. 2001. “Monitoring of the optical and 2.5 – 11.7 µm spectrum and mid-IR imaging of the Seyfert 1 galaxy Mrk 279 with ISO.” Astronomy and Astrophysics 369 (1) (April): 57–64. doi:10.1051/0004-6361:20010103.Abstract
Mid-infrared images of the Seyfert 1 galaxy Mrk 279 obtained with the ISO satellite are presented together with the results of a one-year monitoring campaign of the 2.5-11.7 micron spectrum. Contemporaneous optical photometric and spectrophotometric observations are also presented. The galaxy appears as a point-like source at the resolution of the ISOCAM instrument, 4-5". The 2.5-11.7 micron average spectrum of the nucleus in Mrk 279 shows a strong power law continuum with a spectral index alpha = -0.80+/-0.05 and weak PAH emission features. The Mrk 279 spectral energy distribution shows a mid-IR bump, which extends from 2 to 15-20 micron . The mid-IR bump is consistent with thermal emission from dust grains at a distance of >= 100 light-days. No significant variations of the mid-IR flux have been detected during our observing campaign, consistent with the relatively low amplitude (~10 % rms) of the optical variability during the campaign. The time delay for the Hbeta line emission in response to the optical continuum variations is 16.7 +5.3/5.6 days, consistent with previous measurements.Other Sources
https://arxiv.org/abs/astro-ph/0102356Terms of Use
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