Advanced search
1 file | 2.10 MB Add to list

A far-IR view of the starburst-driven superwind in NGC 2146

Author
Organization
Abstract
NGC 2146, a nearby luminous infrared galaxy, presents evidence for outflows along the disk minor axis in all gas phases (ionized, neutral atomic, and molecular). We present an analysis of the multi-phase, starburst-driven superwind in the central 5 kpc as traced in spatially resolved spectral line observations, using far-IR Herschel PACS spectroscopy, to probe the effects on the atomic and ionized gas, and optical integral field spectroscopy to examine the ionized gas through diagnostic line ratios. We observe an increased similar to 250 km s(-1) velocity dispersion in the [O I] 63 mu m, [O III] 88 mu m, [N II] 122 mu m, and [C II] 158 mu m fine-structure lines that is spatially coincident with high excitation gas above and below the disk. We model this with a slow similar to 200 km s(-1) shock and trace the superwind to the edge of our field of view 2.5 kpc above the disk. We present new SOFIA 37 mu m observations to explore the warm dust distribution, and detect no clear dust entrainment in the outflow. The stellar kinematics appear decoupled from the regular disk rotation seen in all gas phases, consistent with a recent merger event disrupting the system. We consider the role of the superwind in the evolution of NGC 2146 and speculate on the evolutionary future of the system. Our observations of NGC 2146 in the far-IR allow an unobscured view of the wind, crucial for tracing the superwind to the launching region at the disk center, and provide a local analog for future ALMA observations of outflows in high-redshift systems.
Keywords
STAR-FORMING GALAXIES, ULTRALUMINOUS INFRARED GALAXIES, INTEGRAL FIELD, SPECTROSCOPY, POTSDAM MULTIAPERTURE SPECTROPHOTOMETER, MOLECULAR, OUTFLOWS, INTERSTELLAR CARBON, ELLIPTIC GALAXIES, NEARBY GALAXIES, QUASAR FEEDBACK, SPITZER VIEW, dust, extinction, galaxies: individual (NGC 2146), galaxies: starburst, infrared: ISM, ISM: kinematics and dynamics

Downloads

  • A Far-IR View of the Starburst-driven Superwind in NGC 2146.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 2.10 MB

Citation

Please use this url to cite or link to this publication:

MLA
Kreckel, K., et al. “A Far-IR View of the Starburst-Driven Superwind in NGC 2146.” ASTROPHYSICAL JOURNAL, vol. 790, no. 1, 2014.
APA
Kreckel, K., Armus, L., Groves, B., Lyubenova, M., Diaz-Santos, T., Schinnerer, E., … Walter, F. (2014). A far-IR view of the starburst-driven superwind in NGC 2146. ASTROPHYSICAL JOURNAL, 790(1).
Chicago author-date
Kreckel, K, L Armus, B Groves, M Lyubenova, T Diaz-Santos, E Schinnerer, P Appleton, et al. 2014. “A Far-IR View of the Starburst-Driven Superwind in NGC 2146.” ASTROPHYSICAL JOURNAL 790 (1).
Chicago author-date (all authors)
Kreckel, K, L Armus, B Groves, M Lyubenova, T Diaz-Santos, E Schinnerer, P Appleton, KV Croxall, DA Dale, LK Hunt, P Beirao, AD Bolatto, D Calzetti, J Donovan Meyer, BT Draine, J Hinz, RC Kennicutt, Sharon Meidt van der Wel, EJ Murphy, JDT Smith, FS Tabatabaei, and F Walter. 2014. “A Far-IR View of the Starburst-Driven Superwind in NGC 2146.” ASTROPHYSICAL JOURNAL 790 (1).
Vancouver
1.
Kreckel K, Armus L, Groves B, Lyubenova M, Diaz-Santos T, Schinnerer E, et al. A far-IR view of the starburst-driven superwind in NGC 2146. ASTROPHYSICAL JOURNAL. 2014;790(1).
IEEE
[1]
K. Kreckel et al., “A far-IR view of the starburst-driven superwind in NGC 2146,” ASTROPHYSICAL JOURNAL, vol. 790, no. 1, 2014.
@article{8622304,
  abstract     = {NGC 2146, a nearby luminous infrared galaxy, presents evidence for outflows along the disk minor axis in all gas phases (ionized, neutral atomic, and molecular). We present an analysis of the multi-phase, starburst-driven superwind in the central 5 kpc as traced in spatially resolved spectral line observations, using far-IR Herschel PACS spectroscopy, to probe the effects on the atomic and ionized gas, and optical integral field spectroscopy to examine the ionized gas through diagnostic line ratios. We observe an increased similar to 250 km s(-1) velocity dispersion in the [O I] 63 mu m, [O III] 88 mu m, [N II] 122 mu m, and [C II] 158 mu m fine-structure lines that is spatially coincident with high excitation gas above and below the disk. We model this with a slow similar to 200 km s(-1) shock and trace the superwind to the edge of our field of view 2.5 kpc above the disk. We present new SOFIA 37 mu m observations to explore the warm dust distribution, and detect no clear dust entrainment in the outflow. The stellar kinematics appear decoupled from the regular disk rotation seen in all gas phases, consistent with a recent merger event disrupting the system. We consider the role of the superwind in the evolution of NGC 2146 and speculate on the evolutionary future of the system. Our observations of NGC 2146 in the far-IR allow an unobscured view of the wind, crucial for tracing the superwind to the launching region at the disk center, and provide a local analog for future ALMA observations of outflows in high-redshift systems.},
  articleno    = {26},
  author       = {Kreckel, K and Armus, L and Groves, B and Lyubenova, M and Diaz-Santos, T and Schinnerer, E and Appleton, P and Croxall, KV and Dale, DA and Hunt, LK and Beirao, P and Bolatto, AD and Calzetti, D and Donovan Meyer, J and Draine, BT and Hinz, J and Kennicutt, RC and van der Wel, Sharon Meidt and Murphy, EJ and Smith, JDT and Tabatabaei, FS and Walter, F},
  issn         = {0004-637X},
  journal      = {ASTROPHYSICAL JOURNAL},
  keywords     = {STAR-FORMING GALAXIES,ULTRALUMINOUS INFRARED GALAXIES,INTEGRAL FIELD,SPECTROSCOPY,POTSDAM MULTIAPERTURE SPECTROPHOTOMETER,MOLECULAR,OUTFLOWS,INTERSTELLAR CARBON,ELLIPTIC GALAXIES,NEARBY GALAXIES,QUASAR FEEDBACK,SPITZER VIEW,dust,extinction,galaxies: individual (NGC 2146),galaxies: starburst,infrared: ISM,ISM: kinematics and dynamics},
  language     = {eng},
  number       = {1},
  pages        = {15},
  title        = {A far-IR view of the starburst-driven superwind in NGC 2146},
  url          = {http://dx.doi.org/10.1088/0004-637X/790/1/26},
  volume       = {790},
  year         = {2014},
}

Altmetric
View in Altmetric
Web of Science
Times cited: