Blue Compact Dwarf Galaxies with Spitzer: The Infrared/Radio Properties

Abstract

We study the correlation between the radio, mid-infrared and far-infrared properties for a sample of 28 blue compact dwarf (BCD) and low metallicity star-forming galaxies observed by Spitzer. We find that these sources extend the same far-infrared to radio correlation typical of star forming late type alaxies to lower luminosities. In BCDs, the 24um (or 22um) mid-infrared to radio correlation is similar to starburst galaxies, though there is somewhat larger dispersion in their q_24 parameter compared to their q_FIR. No strong correlations between the q parameter and galaxy metallicity or effective dust temperature have been detected, though there is a hint of decreasing q_24 at low metallicities. The two lowest metallicity dwarfs in our sample, IZw18 and SBS0335-052E, despite their similar chemical abundance, deviate from the average q${}_{24}$ ratio in opposite manners, displaying an apparent radio excess and dust excess respectively.

arXiv comment8 pages, 4 figures, accepted by ApJ

References in corpus (49)

• Star Formation in Galaxies Along the Hubble Sequence
• The Spitzer Space Telescope Mission
• Stellar mass-to-light ratios and the Tully-Fisher relation
• The Infrared Spectrograph on the Spitzer Space Telescope
• The IRAS Revised Bright Galaxy Sample (RBGS)
• The 'Forbidden' Abundance of Oxygen in the Sun
• The Calibration of Mid-Infrared Star Formation Rate Indicators
• Radio Properties of Infrared Selected Galaxies in the IRAS 2 Jy Sample
• Estimating Star Formation Rates from Infrared and Radio Luminosities: The Origin of the Radio-Infrared Correlation
• The Spitzer Legacy Survey of the HST-ACS 2 sq. deg. COSMOS Field: survey strategy and first analysis
• Heavy element abundances in blue compact galaxies
• The Mid-IR Properties of Starburst Galaxies from Spitzer-IRS Spectroscopy
• The Bulk of the Cosmic Infrared Background Resolved by ISOCAM
• Metallicity Effects on Mid-Infrared Colors and the 8 micron PAH Emission in Galaxies
• An Integrated Spectrophotometric Survey of Nearby Star-Forming Galaxies
• The Far- and Mid-Infrared/Radio Correlations in the Spitzer Extragalactic First Look Survey
• The Ultraviolet Spectroscopic Properties of Local Starbursts: Implications at High-Redshift
• Pah and Mid-IR Luminosities as Measures of Star-Formation Rate in Spitzer First Look Survey Galaxies
• Mid Infrared Properties of Low Metallicity Blue Compact Dwarf Galaxies From Spitzer/IRS
• A Spectroscopic Study of a Large Sample of Wolf-Rayet Galaxies
• High-Ionization Emission in Metal-Deficient Blue Compact Dwarf Galaxies
• The Molecular ISM of Dwarf Galaxies on Kiloparsec Scales: A New Survey for CO in Northern, IRAS-detected Dwarf Galaxies
• Signatures of the Youngest Starbursts: Optically-thick Thermal Bremsstrahlung Radio Sources in Henize 2-10
• User Manual for DUSTY
• Mid-Infrared Spectral Diagnostics of Nuclear and Extra-Nuclear Regions in Nearby Galaxies
• I Zw 18 revisited with HST/ACS and Cepheids: New Distance and Age
• The Extraordinary Mid-infrared Spectrum of the Blue Compact Dwarf Galaxy SBS0335-052
• The FIR/Radio correlation of high redshift galaxies in the HDF-N
• Deep Hubble Space Telescope/ACS Observations of I Zw 18: a Young Galaxy in Formation
• HST observations of the blue compact dwarf SBS 0335-052: a probable young galaxy
• Dust and Atomic Gas in Dwarf Irregular Galaxies of the M81 Group: The SINGS and THINGS view
• The optical-to-radio spectral energy distributions of low-metallicity blue compact dwarf galaxies
• An Initial Look at the Far Infrared-Radio Correlation within Nearby Star-forming Galaxies using the Spitzer Space Telescope
• Spectroscopic study of blue compact galaxies V. oxygen abundance and the metallicity-luminosity relation
• Star-Formation Rates of Local Blue Compact Dwarf Galaxies I: 1.4 GHz and 60 um luminosities
• The Effect of Star Formation on the Far-Infrared--Radio Correlation within Galaxies
• The opaque nascent starburst in NGC 1377: Spitzer SINGS observations
• The Diverse Infrared Properties of a Complete Sample of Star-Forming Dwarf Galaxies
• Spitzer-IRS Spectroscopy of the Prototypical Starburst Galaxy NGC7714
• Multiwavelength Observations of the Low Metallicity Blue Compact Dwarf Galaxy SBS 0335-052
• Extending the infrared radio correlation
• The Radio/Mid-Infrared Correlation and the Contribution of 15-micron Galaxies to the 1.4-GHz Source Counts
• The Radio Continuum of the Metal-Deficient Blue Compact Dwarf Galaxy SBS0335-052
• A spectrophotometric catalogue of HII galaxies
• The Far-Infrared/Radio Correlation in Nearby Abell Clusters
• Dust in the Extremely Metal-Poor Blue Compact Dwarf Galaxy IZw18: The Spitzer Mid-Infrared View
• Dust Properties and Star-Formation Rates in Star-Forming Dwarf Galaxies
• Elemental Abundances of Blue Compact Dwarfs from mid-IR Spectroscopy with Spitzer
• The Nature Of Radio Continuum Emission At Very Low Metallicity: Very Large Array Observations of I Zw 18

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• LOFAR/H-ATLAS: The low-frequency radio luminosity - star-formation rate relation
• The infrared-radio correlation of star-forming galaxies is strongly M${}_{\star }$-dependent but nearly redshift-invariant since z$\sim$4
• X-rays from Blue Compact Dwarf Galaxies
• WISE Discovery of Low Metallicity Blue Compact Dwarf Galaxies
• Probing the Excitation of Extreme Starbursts: High Resolution Mid-IR Spectroscopy of Blue Compact Dwarfs
• Spitzer Analysis of HII Region Complexes in the Magellanic Clouds: Determining a Suitable Monochromatic Obscured Star Formation Indicator
• Neutral gas heating by X-rays in primitive galaxies: Infrared observations of IZw18 with Herschel
• Stars and gas in the most metal-poor galaxies I: COS and MUSE observations of SBS 0335-052E
• The far-infrared - radio correlation in dwarf galaxies
• The Mid-Infrared [SIV]/[NeII] versus [NeIII]/[NeII] Correlation
• Planetary Nebulae Detected in the Spitzer Space Telescope GLIMPSE II Legacy Survey
• Tests of star formation metrics in the low metallicity galaxy NGC 5253 using ALMA observations of H30$\alpha$ line emission
• Modeling the physical properties in the ISM of the low-metallicity galaxy NGC4214
• Global Correlations Between the Radio Continuum, Infrared and CO Emission in Dwarf Galaxies
• Local Volume HI Survey: the far-infrared radio correlation
• Properties of free-free, dust, and CO emissions in the starbursts of blue compact dwarf galaxies
• The dependence of the IR-radio correlation on the metallicity
• Central free-free-dominated 880 $\micron$ emission in II Zw 40
• A Complete 16 micron-Selected Galaxy Sample at $z\sim 1$: Mid-infrared Spectral Energy Distributions
• Characterizing the outer disk of eXtended-UV galaxies in the optical domain with deep surveys
• The Mid-Infrared Properties of Blue Compact Dwarf Galaxies