Monitoring of the optical and 2.5-11.7 μm spectrum and mid-IR imaging of the Seyfert 1 galaxy Mrk 279 with ISO

M. Santos-Lleó; J. Clavel; B. Schulz; B. Altieri; P. Barr; D. Alloin; P. Berlind; R. Bertram; D. M. Crenshaw; R. A. Edelson; U. Giveon; K. Horne; J. P. Huchra; S. Kaspi; G. A. Kriss; J. H. Krolik; M. A. Malkan; Yu F. Malkov; H. Netzer; P. T. O'Brien; B. M. Peterson; R. W. Pogge; V. I. Pronik; B. C. Qian; G. A. Reichert; P. M. Rodríguez-Pascual; S. G. Sergeev; J. Tao; S. Tokarz; R. M. Wagner; W. Wamsteker; B. J. Wilkes

doi:10.1051/0004-6361:20010103

Monitoring of the optical and 2.5-11.7 μm spectrum and mid-IR imaging of the Seyfert 1 galaxy Mrk 279 with ISO

M. Santos-Lleó^*
, J. Clavel
, B. Schulz
, B. Altieri
, P. Barr
, D. Alloin
, P. Berlind
, R. Bertram
, D. M. Crenshaw
, R. A. Edelson
, U. Giveon
, K. Horne
, J. P. Huchra
, S. Kaspi
, G. A. Kriss
, J. H. Krolik
, M. A. Malkan
, Yu F. Malkov
, H. Netzer
, P. T. O'Brien

B. M. Peterson, R. W. Pogge, V. I. Pronik, B. C. Qian, G. A. Reichert, P. M. Rodríguez-Pascual, S. G. Sergeev, J. Tao, S. Tokarz, R. M. Wagner, W. Wamsteker, B. J. Wilkes

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

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 μm 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 μm average spectrum of the nucleus in Mrk 279 shows a strong power law continuum with α = -0.80 ± 0.05 (F_v ∝ v^α) and weak PAH emission features. The Mrk 279 spectral energy distribution shows a mid-IR bump, which extends from 2 to 15-20 μm. The mid-IR bump is consistent with thermal emission from dust grains at a distance of ≳ 100 lt-d. 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 Hβ line emission in response to the optical continuum variations is τ = 16.7_-5.6^+5.3 days, consistent with previous measurements.

Original language	English
Pages (from-to)	57-64
Number of pages	8
Journal	Astronomy and Astrophysics
Volume	369
Issue number	1
DOIs	https://doi.org/10.1051/0004-6361:20010103
State	Published - 2001

Funding

Funders	Funder number
National Science Foundation	9420080

Keywords

Galaxies: Seyfert
Galaxies: active
Galaxies: individual: Mrk 279
Galaxies: nuclei
Infrared: galaxies

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10.1051/0004-6361:20010103

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Santos-Lleó, M., Clavel, J., Schulz, B., Altieri, B., Barr, P., Alloin, D., Berlind, P., 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, Y. F., Netzer, H., ... Wilkes, B. J. (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), 57-64. https://doi.org/10.1051/0004-6361:20010103

@article{a74875fd76a64ec8869ea728b5f2d539,

title = "Monitoring of the optical and 2.5-11.7 μm spectrum and mid-IR imaging of the Seyfert 1 galaxy Mrk 279 with ISO",

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 μm 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 μm average spectrum of the nucleus in Mrk 279 shows a strong power law continuum with α = -0.80 ± 0.05 (Fv ∝ vα) and weak PAH emission features. The Mrk 279 spectral energy distribution shows a mid-IR bump, which extends from 2 to 15-20 μm. The mid-IR bump is consistent with thermal emission from dust grains at a distance of ≳ 100 lt-d. 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 Hβ line emission in response to the optical continuum variations is τ = 16.7-5.6+5.3 days, consistent with previous measurements.",

keywords = "Galaxies: Seyfert, Galaxies: active, Galaxies: individual: Mrk 279, Galaxies: nuclei, Infrared: galaxies",

author = "M. Santos-Lle{\'o} and J. Clavel and B. Schulz and B. Altieri and P. Barr and D. Alloin and P. Berlind and R. Bertram and Crenshaw, \{D. M.\} and Edelson, \{R. A.\} and U. Giveon and K. Horne and Huchra, \{J. P.\} and S. Kaspi and Kriss, \{G. A.\} and Krolik, \{J. H.\} and Malkan, \{M. A.\} and Malkov, \{Yu F.\} and H. Netzer and O'Brien, \{P. T.\} and Peterson, \{B. M.\} and Pogge, \{R. W.\} and Pronik, \{V. I.\} and Qian, \{B. C.\} and Reichert, \{G. A.\} and Rodr{\'i}guez-Pascual, \{P. M.\} and Sergeev, \{S. G.\} and J. Tao and S. Tokarz and Wagner, \{R. M.\} and W. Wamsteker and Wilkes, \{B. J.\}",

year = "2001",

doi = "10.1051/0004-6361:20010103",

language = "אנגלית",

volume = "369",

pages = "57--64",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

number = "1",

}

Santos-Lleó, M, Clavel, J, Schulz, B, Altieri, B, Barr, P, Alloin, D, Berlind, P, Bertram, R, Crenshaw, DM, Edelson, RA, Giveon, U, Horne, K, Huchra, JP, Kaspi, S, Kriss, GA, Krolik, JH, Malkan, MA, Malkov, YF, Netzer, H, O'Brien, PT, Peterson, BM, Pogge, RW, Pronik, VI, Qian, BC, Reichert, GA, Rodríguez-Pascual, PM, Sergeev, SG, Tao, J, Tokarz, S, Wagner, RM, Wamsteker, W & Wilkes, BJ 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, vol. 369, no. 1, pp. 57-64. https://doi.org/10.1051/0004-6361:20010103

TY - JOUR

T1 - Monitoring of the optical and 2.5-11.7 μm spectrum and mid-IR imaging of the Seyfert 1 galaxy Mrk 279 with ISO

AU - Santos-Lleó, M.

AU - Clavel, J.

AU - Schulz, B.

AU - Altieri, B.

AU - Barr, P.

AU - Alloin, D.

AU - Berlind, P.

AU - Bertram, R.

AU - Crenshaw, D. M.

AU - Edelson, R. A.

AU - Giveon, U.

AU - Horne, K.

AU - Huchra, J. P.

AU - Kaspi, S.

AU - Kriss, G. A.

AU - Krolik, J. H.

AU - Malkan, M. A.

AU - Malkov, Yu F.

AU - Netzer, H.

AU - O'Brien, P. T.

AU - Peterson, B. M.

AU - Pogge, R. W.

AU - Pronik, V. I.

AU - Qian, B. C.

AU - Reichert, G. A.

AU - Rodríguez-Pascual, P. M.

AU - Sergeev, S. G.

AU - Tao, J.

AU - Tokarz, S.

AU - Wagner, R. M.

AU - Wamsteker, W.

AU - Wilkes, B. J.

PY - 2001

Y1 - 2001

N2 - 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 μm 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 μm average spectrum of the nucleus in Mrk 279 shows a strong power law continuum with α = -0.80 ± 0.05 (Fv ∝ vα) and weak PAH emission features. The Mrk 279 spectral energy distribution shows a mid-IR bump, which extends from 2 to 15-20 μm. The mid-IR bump is consistent with thermal emission from dust grains at a distance of ≳ 100 lt-d. 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 Hβ line emission in response to the optical continuum variations is τ = 16.7-5.6+5.3 days, consistent with previous measurements.

AB - 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 μm 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 μm average spectrum of the nucleus in Mrk 279 shows a strong power law continuum with α = -0.80 ± 0.05 (Fv ∝ vα) and weak PAH emission features. The Mrk 279 spectral energy distribution shows a mid-IR bump, which extends from 2 to 15-20 μm. The mid-IR bump is consistent with thermal emission from dust grains at a distance of ≳ 100 lt-d. 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 Hβ line emission in response to the optical continuum variations is τ = 16.7-5.6+5.3 days, consistent with previous measurements.

KW - Galaxies: Seyfert

KW - Galaxies: active

KW - Galaxies: individual: Mrk 279

KW - Galaxies: nuclei

KW - Infrared: galaxies

UR - https://www.scopus.com/pages/publications/0035298181

U2 - 10.1051/0004-6361:20010103

DO - 10.1051/0004-6361:20010103

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:0035298181

SN - 0004-6361

VL - 369

SP - 57

EP - 64

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 1

ER -

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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Keywords

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