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'BrienB. 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

36 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
Directorate for Mathematical and Physical Sciences	9420080

Keywords

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

Access to Document

10.1051/0004-6361:20010103

Cite this

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 - http://www.scopus.com/inward/record.url?scp=0035298181&partnerID=8YFLogxK

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

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this