Probing the interstellar medium of NGC1569 with Herschel

Abstract

NGC1569 has some of the most vigorous star formation among nearby galaxies. It hosts two super star clusters (SSCs) and has a higher star formation rate (SFR) per unit area than other starburst dwarf galaxies. Extended emission beyond the galaxy's optical body is observed in warm and hot ionised and atomic hydrogen gas; a cavity surrounds the SSCs. We aim to understand the impact of the massive star formation on the surrounding interstellar medium in NGC1569 through a study of its stellar and dust properties. We use Herschel and ancillary multiwavelength observations, from the ultraviolet to the submillimeter regime, to construct its spectral energy distribution, which we model with magphys on ~300pc scales at the SPIRE250 μm resolution. The multiwavelength morphology shows low levels of dust emission in the cavity, and a concentration of several dust knots in its periphery. The extended emission seen in the ionised and neutral hydrogen observations is also present in the far-infrared emission. The dust mass is higher in the periphery of the cavity, driven by ongoing star formation and dust emission knots. The SFR is highest in the central region, while the specific SFR is more sensitive to the ongoing star formation. The region encompassing the cavity and SSCs contains only 12 per cent of the dust mass of the central starburst, in accord with other tracers of the interstellar medium. The gas-to-dust mass ratio is lower in the cavity and fluctuates to higher values in its periphery.

arXiv commentMNRAS accepted; 22 pages, 13 figures, 5 tables

References in corpus (92)

• Astropy: A Community Python Package for Astronomy
• Stellar population synthesis at the resolution of 2003
• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• The Infrared Array Camera (IRAC) for the Spitzer Space Telescope
• Correcting for the Effects of Interstellar Extinction
• Star Formation in the Milky Way and Nearby Galaxies
• The Spitzer Space Telescope Mission
• The Galaxy Evolution Explorer: A Space Ultraviolet Survey Mission
• The Photodetector Array Camera and Spectrometer (PACS) on the Herschel Space Observatory
• The Herschel-SPIRE instrument and its in-flight performance
• Infrared Emission from Interstellar Dust. IV. The Silicate-Graphite-PAH Model in the Post-Spitzer Era
• The Star Formation Efficiency in Nearby Galaxies: Measuring Where Gas Forms Stars Effectively
• A Simple Model for the Absorption of Starlight by Dust in Galaxies
• A simple model to interpret the ultraviolet, optical and infrared emission from galaxies
• Analysis of galaxy SEDs from far-UV to far-IR with CIGALE: Studying a SINGS test sample
• What Shapes the Luminosity Function of Galaxies?
• The Wavelength Dependence of Interstellar Extinction from 1.25 to 8.0 microns Using GLIMPSE Data
• The GALEX Ultraviolet Atlas of Nearby Galaxies
• Gas-to-Dust mass ratios in local galaxies over a 2 dex metallicity range
• The CO-to-H2 Conversion Factor and Dust-to-Gas Ratio on Kiloparsec Scales in Nearby Galaxies
• Infrared Dark Clouds: precursors to star clusters
• Common-Resolution Convolution Kernels for Space- and Ground-Based Telescopes
• KINGFISH -- Key Insights on Nearby Galaxies: A Far-Infrared Survey with Herschel: Survey Description and Image Atlas
• Little Things
• The Metal Content of Dwarf Starburst Winds: Results from Chandra Observations of NGC 1569
• The Role of Dwarf Galaxy Interactions in Shaping the Magellanic System and Implications for Magellanic Irregulars
• The Impact of Star Formation on the Interstellar Medium in Dwarf Galaxies: II. The Formation of Galactic Winds
• The Starburst-Driven Molecular Wind in NGC 253 and the Suppression of Star Formation
• The Metallicity Dependence of the CO-to-H${}_2$ Conversion Factor from Observations of Local Group Galaxies
• The disruption of nearby galaxies by the Milky Way
• Low CO Luminosities in Dwarf Galaxies
• An Overview of the Dwarf Galaxy Survey
• Cluster Mass Functions in the Large and Small Magellanic Clouds: Fading and Size of Sample Effects
• A GALEX Ultraviolet Imaging Survey of Galaxies in the Local Volume
• Non-Standard Grain Properties, Dark Gas Reservoir, and Extended Submillimeter Excess, Probed by Herschel in the Large Magellanic Cloud
• Mid Infrared Properties of Low Metallicity Blue Compact Dwarf Galaxies From Spitzer/IRS
• Broad-Band Imaging of a Large Sample of Irregular Galaxies
• ISM Properties in Low-Metallicity Environments II. The Dust Spectral Energy Distribution of NGC 1569
• New insight into the relation between star formation activity and dust content in galaxies
• Revealing the cold dust in low-metallicity environments: I - Photometry analysis of the Dwarf Galaxy Survey with Herschel
• Dwarfs Gobbling Dwarfs: A Stellar Tidal Stream Around NGC 4449 and Hierarchical Galaxy Formation on Small Scales
• Formation of Isolated Dwarf Galaxies with Feedback
• Outside-in Shrinking of the Star-forming Disk of Dwarf Irregular Galaxies
• The Fine-Scale Structure of the neutral Interstellar Medium in nearby Galaxies
• GALEX Ultraviolet Imaging of Dwarf Galaxies and Star Formation
• Compact Star Clusters in Nearby Dwarf Irregular Galaxies
• MIPS 24-160 micron photometry for the Herschel-SPIRE Local Galaxies Guaranteed Time Programs
• Modeling Dust and Starlight in Galaxies Observed by Spitzer and Herschel: NGC 628 and NGC 6946
• The early stages of star formation in Infrared Dark Clouds: characterizing the core dust properties
• The molecular gas reservoir of 6 low-metallicity galaxies from the Herschel Dwarf Galaxy Survey: A ground-based follow-up survey of CO(1-0), CO(2-1), and CO(3-2)
• The Star Clusters in the Starburst Irregular Galaxy NGC 1569
• Spatially resolved optical IFU spectroscopy of the inner superwind of NGC 253
• Exploring the physical properties of local star-forming ULIRGs from the ultraviolet to the infrared
• (Sub)millimetre emission from NGC 1569: an abundance of very small grains
• The Herschel-ATLAS: The dust energy balance in the edge-on spiral galaxy UGC 4754
• Herschel Exploitation of Local Galaxy Andromeda (HELGA) III: The Star Formation Law in M31
• Star Cluster Formation and Evolution in the Dwarf Starburst Galaxy NGC 1569
• The Interstellar Medium of Star-forming Irregular Galaxies: The View with ISO
• CIGALEMC: Galaxy Parameter Estimation using a Markov Chain Monte Carlo Approach with Cigale
• The dust energy balance in the edge-on spiral galaxy NGC 4565
• Gemini GMOS/IFU spectroscopy of NGC 1569 - I: Mapping the properties of a young star cluster and its environment
• Extra-planar HI in the starburst galaxy NGC 253
• Anatomy of a Young Massive Star Cluster: NGC 1569-B
• Studying the galactic outflow in NGC 1569
• The Complex Star Formation History of NGC 1569
• The Stellar and Gas Kinematics of the LITTLE THINGS Dwarf Irregular Galaxy NGC 1569
• A New Hubble Space Telescope Distance to NGC 1569: Starburst Properties and IC 342 Group Membership
• Herschel/SPIRE Observations of the Dusty Disk of NGC 4244
• A mid-IR study of Hickson Compact Groups II. Multi-wavelength analysis of the complete GALEX-Spitzer Sample
• Gemini GMOS/IFU spectroscopy of NGC 1569 - II: Mapping the roots of the galactic outflow
• The extent of dust in NGC 891 from Herschel/SPIRE images
• The Dwarf Irregular/Wolf-Rayet Galaxy NGC4214: I. A New Distance, Stellar Content, and Global Parameters
• The red stellar population in NGC 1569
• Numerical Simulations of Bubble-Induced Star Formation in Dwarf Irregular Galaxies with a Novel Stellar Feedback Scheme
• Herschel observations of Hickson compact groups of galaxies: Unveiling the properties of cold dust
• From young massive star cluster to old globular: the L_V-sigma_0 relationship as a diagnostic tool
• Young and intermediate-age massive star clusters
• A Spitzer search for cold dust within globular clusters
• Constraining Stellar Feedback: Shock-ionized Gas in Nearby Starburst Galaxies
• Determining the Nature of the Extended HI Structure Around LITTLE THINGS Dwarf Galaxy NGC 1569
• Infrared Narrow-Band Tomography of the Local Starburst NGC 1569 with LBT/LUCIFER
• HST/ACS Photometry of Old Stars in NGC 1569: The Star Formation History of a Nearby Starburst
• Study of Dust and Ionized gas in Early-type Galaxies
• The impact of galaxy geometry and mass evolution on the survival of star clusters
• On the evolution of intra-cluster gas within Galactic globular clusters
• Observational Constraints on the Molecular Gas Content in Nearby Starburst Dwarf Galaxies
• Chemo-dynamical simulations of dwarf galaxy evolution
• Ongoing Massive Star Formation in NGC 604
• Distribution of extinction and star formation in NGC1569
• Quantified HI Morphology VII: star-formation and tidal influence on local dwarf HI morphology
• Population gradients and photometric metallicities in early- and transition-type dwarf galaxies: Clues from the Sculptor group
• Probing the Super Star Cluster Environment of NGC 1569 Using FISICA

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