Far-infrared line imaging of the starburst ring in NGC 1097 with the Herschel/PACS spectrometer

P. Beirão; L. Armus; P. N. Appleton; J. D.T. Smith; K. V. Croxall; E. J. Murphy; D. A. Dale; G. Helou; R. C. Kennicutt; D. Calzetti; A. D. Bolatto; B. R. Brandl; A. F. Crocker; B. T. Draine; G. Dumas; C. W. Engelbracht; A. Gil De Paz; K. D. Gordon; B. Groves; C. N. Hao; J. L. Hinz; L. K. Hunt; B. D. Johnson; J. Koda; O. Krause; A. K. Leroy; S. E. Meidt; J. Richer; H. W. Rix; N. Rahman; H. Roussel; K. M. Sandstrom; M. Sauvage; E. Schinnerer; R. A. Skibba; S. Srinivasan; F. Walter; B. E. Warren; C. D. Wilson; M. G. Wolfire; S. Zibetti

doi:10.1051/0004-6361/201014592

Far-infrared line imaging of the starburst ring in NGC 1097 with the Herschel/PACS spectrometer

P. Beirão, L. Armus, P. N. Appleton, J. D.T. Smith, K. V. Croxall, E. J. Murphy, D. A. Dale, G. Helou, R. C. Kennicutt, D. Calzetti, A. D. Bolatto, B. R. Brandl, A. F. Crocker, B. T. Draine, G. Dumas, C. W. Engelbracht, A. Gil De Paz, K. D. Gordon, B. Groves, C. N. HaoJ. L. Hinz, L. K. Hunt, B. D. Johnson, J. Koda, O. Krause, A. K. Leroy, S. E. Meidt, J. Richer, H. W. Rix, N. Rahman, H. Roussel, K. M. Sandstrom, M. Sauvage, E. Schinnerer, R. A. Skibba, S. Srinivasan, F. Walter, B. E. Warren, C. D. Wilson, M. G. Wolfire, S. Zibetti

Multiple Mirror Telescope Observatory

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

24 Scopus citations

Abstract

NGC 1097 is a nearby SBb galaxy with a Seyfert nucleus and a bright starburst ring. We study the physical properties of the interstellar medium (ISM) in the ring using spatially resolved far-infrared spectral maps of the circumnuclear starburst ring of NGC 1097, obtained with the PACS spectrometer on board the Herschel Space Observatory. In particular, we map the important ISM cooling and diagnostic emission lines of [OI] 63 μm, [OIII] 88 μm, [NII] 122 μm, [CII] 158 μm and [NII] 205 μm. We observe that in the [OI] 63 μm, [OIII] 88 μm, and [NII] 122 μm line maps, the emission is enhanced in clumps along the NE part of the ring. We observe evidence of rapid rotation in the circumnuclear ring, with a rotation velocity of ∼220 km s ^-1 (inclination uncorrected) measured in all lines. The [OI] 63 μm/[CII] 158 μm ratio varies smoothly throughout the central region, and is enhanced on the northeastern part of the ring, which may indicate a stronger radiation field. This enhancement coincides with peaks in the [OI] 63 μm and [OIII] 88 μm maps. Variations of the [NII] 122 μm/[NII] 205 μm ratio correspond to a range in the ionized gas density between 150 and 400 cm ^-3.

Original language	English (US)
Article number	L60
Journal	Astronomy and astrophysics
Volume	518
Issue number	4
DOIs	https://doi.org/10.1051/0004-6361/201014592
State	Published - 2010

Keywords

galaxies: Seyfert
galaxies: individual: NGC 1097
galaxies: starburst
infrared: galaxies
photon-dominated region
techniques: imaging spectroscopy

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1051/0004-6361/201014592

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Beirão, P., Armus, L., Appleton, P. N., Smith, J. D. T., Croxall, K. V., Murphy, E. J., Dale, D. A., Helou, G., Kennicutt, R. C., Calzetti, D., Bolatto, A. D., Brandl, B. R., Crocker, A. F., Draine, B. T., Dumas, G., Engelbracht, C. W., Gil De Paz, A., Gordon, K. D., Groves, B., ... Zibetti, S. (2010). Far-infrared line imaging of the starburst ring in NGC 1097 with the Herschel/PACS spectrometer. Astronomy and astrophysics, 518(4), Article L60. https://doi.org/10.1051/0004-6361/201014592

Beirão, P, Armus, L, Appleton, PN, Smith, JDT, Croxall, KV, Murphy, EJ, Dale, DA, Helou, G, Kennicutt, RC, Calzetti, D, Bolatto, AD, Brandl, BR, Crocker, AF, Draine, BT, Dumas, G, Engelbracht, CW, Gil De Paz, A, Gordon, KD, Groves, B, Hao, CN, Hinz, JL, Hunt, LK, Johnson, BD, Koda, J, Krause, O, Leroy, AK, Meidt, SE, Richer, J, Rix, HW, Rahman, N, Roussel, H, Sandstrom, KM, Sauvage, M, Schinnerer, E, Skibba, RA, Srinivasan, S, Walter, F, Warren, BE, Wilson, CD, Wolfire, MG & Zibetti, S 2010, 'Far-infrared line imaging of the starburst ring in NGC 1097 with the Herschel/PACS spectrometer', Astronomy and astrophysics, vol. 518, no. 4, L60. https://doi.org/10.1051/0004-6361/201014592

@article{316a4401bece46cd8cbaaf63d1f917d4,

title = "Far-infrared line imaging of the starburst ring in NGC 1097 with the Herschel/PACS spectrometer",

abstract = "NGC 1097 is a nearby SBb galaxy with a Seyfert nucleus and a bright starburst ring. We study the physical properties of the interstellar medium (ISM) in the ring using spatially resolved far-infrared spectral maps of the circumnuclear starburst ring of NGC 1097, obtained with the PACS spectrometer on board the Herschel Space Observatory. In particular, we map the important ISM cooling and diagnostic emission lines of [OI] 63 μm, [OIII] 88 μm, [NII] 122 μm, [CII] 158 μm and [NII] 205 μm. We observe that in the [OI] 63 μm, [OIII] 88 μm, and [NII] 122 μm line maps, the emission is enhanced in clumps along the NE part of the ring. We observe evidence of rapid rotation in the circumnuclear ring, with a rotation velocity of ∼220 km s -1 (inclination uncorrected) measured in all lines. The [OI] 63 μm/[CII] 158 μm ratio varies smoothly throughout the central region, and is enhanced on the northeastern part of the ring, which may indicate a stronger radiation field. This enhancement coincides with peaks in the [OI] 63 μm and [OIII] 88 μm maps. Variations of the [NII] 122 μm/[NII] 205 μm ratio correspond to a range in the ionized gas density between 150 and 400 cm -3.",

keywords = "galaxies: Seyfert, galaxies: individual: NGC 1097, galaxies: starburst, infrared: galaxies, photon-dominated region, techniques: imaging spectroscopy",

author = "P. Beir{\~a}o and L. Armus and Appleton, {P. N.} and Smith, {J. D.T.} and Croxall, {K. V.} and Murphy, {E. J.} and Dale, {D. A.} and G. Helou and Kennicutt, {R. C.} and D. Calzetti and Bolatto, {A. D.} and Brandl, {B. R.} and Crocker, {A. F.} and Draine, {B. T.} and G. Dumas and Engelbracht, {C. W.} and {Gil De Paz}, A. and Gordon, {K. D.} and B. Groves and Hao, {C. N.} and Hinz, {J. L.} and Hunt, {L. K.} and Johnson, {B. D.} and J. Koda and O. Krause and Leroy, {A. K.} and Meidt, {S. E.} and J. Richer and Rix, {H. W.} and N. Rahman and H. Roussel and Sandstrom, {K. M.} and M. Sauvage and E. Schinnerer and Skibba, {R. A.} and S. Srinivasan and F. Walter and Warren, {B. E.} and Wilson, {C. D.} and Wolfire, {M. G.} and S. Zibetti",

year = "2010",

doi = "10.1051/0004-6361/201014592",

language = "English (US)",

volume = "518",

journal = "Astronomy and astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

number = "4",

}

TY - JOUR

T1 - Far-infrared line imaging of the starburst ring in NGC 1097 with the Herschel/PACS spectrometer

AU - Beirão, P.

AU - Armus, L.

AU - Appleton, P. N.

AU - Smith, J. D.T.

AU - Croxall, K. V.

AU - Murphy, E. J.

AU - Dale, D. A.

AU - Helou, G.

AU - Kennicutt, R. C.

AU - Calzetti, D.

AU - Bolatto, A. D.

AU - Brandl, B. R.

AU - Crocker, A. F.

AU - Draine, B. T.

AU - Dumas, G.

AU - Engelbracht, C. W.

AU - Gil De Paz, A.

AU - Gordon, K. D.

AU - Groves, B.

AU - Hao, C. N.

AU - Hinz, J. L.

AU - Hunt, L. K.

AU - Johnson, B. D.

AU - Koda, J.

AU - Krause, O.

AU - Leroy, A. K.

AU - Meidt, S. E.

AU - Richer, J.

AU - Rix, H. W.

AU - Rahman, N.

AU - Roussel, H.

AU - Sandstrom, K. M.

AU - Sauvage, M.

AU - Schinnerer, E.

AU - Skibba, R. A.

AU - Srinivasan, S.

AU - Walter, F.

AU - Warren, B. E.

AU - Wilson, C. D.

AU - Wolfire, M. G.

AU - Zibetti, S.

PY - 2010

Y1 - 2010

N2 - NGC 1097 is a nearby SBb galaxy with a Seyfert nucleus and a bright starburst ring. We study the physical properties of the interstellar medium (ISM) in the ring using spatially resolved far-infrared spectral maps of the circumnuclear starburst ring of NGC 1097, obtained with the PACS spectrometer on board the Herschel Space Observatory. In particular, we map the important ISM cooling and diagnostic emission lines of [OI] 63 μm, [OIII] 88 μm, [NII] 122 μm, [CII] 158 μm and [NII] 205 μm. We observe that in the [OI] 63 μm, [OIII] 88 μm, and [NII] 122 μm line maps, the emission is enhanced in clumps along the NE part of the ring. We observe evidence of rapid rotation in the circumnuclear ring, with a rotation velocity of ∼220 km s -1 (inclination uncorrected) measured in all lines. The [OI] 63 μm/[CII] 158 μm ratio varies smoothly throughout the central region, and is enhanced on the northeastern part of the ring, which may indicate a stronger radiation field. This enhancement coincides with peaks in the [OI] 63 μm and [OIII] 88 μm maps. Variations of the [NII] 122 μm/[NII] 205 μm ratio correspond to a range in the ionized gas density between 150 and 400 cm -3.

AB - NGC 1097 is a nearby SBb galaxy with a Seyfert nucleus and a bright starburst ring. We study the physical properties of the interstellar medium (ISM) in the ring using spatially resolved far-infrared spectral maps of the circumnuclear starburst ring of NGC 1097, obtained with the PACS spectrometer on board the Herschel Space Observatory. In particular, we map the important ISM cooling and diagnostic emission lines of [OI] 63 μm, [OIII] 88 μm, [NII] 122 μm, [CII] 158 μm and [NII] 205 μm. We observe that in the [OI] 63 μm, [OIII] 88 μm, and [NII] 122 μm line maps, the emission is enhanced in clumps along the NE part of the ring. We observe evidence of rapid rotation in the circumnuclear ring, with a rotation velocity of ∼220 km s -1 (inclination uncorrected) measured in all lines. The [OI] 63 μm/[CII] 158 μm ratio varies smoothly throughout the central region, and is enhanced on the northeastern part of the ring, which may indicate a stronger radiation field. This enhancement coincides with peaks in the [OI] 63 μm and [OIII] 88 μm maps. Variations of the [NII] 122 μm/[NII] 205 μm ratio correspond to a range in the ionized gas density between 150 and 400 cm -3.

KW - galaxies: Seyfert

KW - galaxies: individual: NGC 1097

KW - galaxies: starburst

KW - infrared: galaxies

KW - photon-dominated region

KW - techniques: imaging spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=77957830052&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77957830052&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201014592

DO - 10.1051/0004-6361/201014592

M3 - Article

AN - SCOPUS:77957830052

SN - 0004-6361

VL - 518

JO - Astronomy and astrophysics

JF - Astronomy and astrophysics

IS - 4

M1 - L60

ER -

Far-infrared line imaging of the starburst ring in NGC 1097 with the Herschel/PACS spectrometer

Abstract

Keywords

ASJC Scopus subject areas

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