Deep Near-Infrared Imaging and Photometry of the Antennae Galaxies with WIRC

Abstract

We present deep near-infrared images of the Antennae galaxies, taken with the Palomar Wide-Field Infrared Camera WIRC. The images cover a 4.33' x 4.33' (24.7kpc x 24.7kpc) area around the galaxy interaction zone. We derive J and K_s band photometric fluxes for 172 infrared star clusters, and discuss details of the two galactic nuclei and the overlap region. We also discuss the properties of a subset of 27 sources which have been detected with WIRC, HST and the VLA. The sources in common are young clusters of less than 10 Myr, which show no correlation between their infrared colors and 6 cm radio properties. These clusters cover a wide range in infrared color due to extinction and evolution. The average extinction is about A_V~2 mag while the reddest clusters may be reddened by up to 10 magnitudes.

Accepted for publication in ApJ; a version at higher resolution can be obtained from http://www.strw.leidenuniv.nl/~brandl/Antennae_WIRC.ps.gz

References in corpus (11)

• Starburst99: Synthesis Models for Galaxies with Active Star Formation
• The Luminosity Function of Young Star Clusters In "The Antennae" Galaxies (NGC 4038/4039)
• A Multi-Wavelength Study of the Young Star Clusters and Interstellar Medium in the Antennae Galaxies (NGC 4038/9)
• High-Resolution Imaging of Molecular Gas and Dust in the Antennae (NGC 4038/39): Super Giant Molecular Complexes
• Dynamical Masses of Young Star Clusters in NGC 4038/4039
• The Off-nuclear Starbursts In NGC 4038/4039 (The Antennae Galaxies)
• What Fraction of the Young Clusters in the Antennae Galaxies are "Missing"?
• The Stellar Content of the Southern Tail of NGC 4038/9 and a Revised Distance
• Chandra Observations of "The Antennae" Galaxies (NGC 4038/39): II. Detection and Analysis of Galaxian X-ray source
• Infrared Spectroscopy of a Massive Obscured Star Cluster in the Antennae Galaxies (NGC 4038/4039) with NIRSPEC
• Stellar Populations in NGC 4038/39 (The Antennae): Exploring A Galaxy Merger Pixel-by-Pixel

Cited by in corpus (21)

• The Antennae Galaxies (NGC 4038/4039) Revisited: ACS and NICMOS Observations of a Prototypical Merger
• Mid-infrared diagnostics of starburst galaxies: clumpy, dense structures in star-forming regions in the Antennae (NGC 4038/4039)
• On the Origin of Diffuse Ionized Gas in the Antennae Galaxy
• Spitzer-IRS Study of the Antennae Galaxies NGC 4038/39
• A new red giant-based distance modulus of 13.3 Mpc to the Antennae galaxies and its consequences
• Simulating magnetic fields in the Antennae galaxies
• The interstellar medium of the Antennae Galaxies
• External Mass Accumulation onto Core Potentials: Implications for Star Clusters, Galaxies and Galaxy Clusters
• Water Masers Associated with Star Formation in the Antennae Galaxies
• Bondi-Hoyle-Lyttleton Accretion onto Star Clusters
• Two physical regimes for the Giant HII Regions and Giant Molecular Clouds in the Antennae Galaxies
• Multi-wavelength Study of Young Massive Star Clusters in the Interacting Galaxy ARP 24
• Diffuse interstellar bands λ5780 and λ5797 in the Antennae Galaxy as seen by MUSE
• Dust Attenuation in Clumpy, Star-Forming Galaxies at 0.07 < z < 0.14
• Subarcsecond Resolution Mid-Infrared Observations of Super Star Clusters in the Antennae (NGC4038/4039)
• Star Formation History of a Young Super-Star Cluster in NGC 4038/39: Direct Detection of Low Mass Pre-Main Sequence Stars
• Towards an accurate model for the Antennae Galaxies
• Gas Accretion by Star Clusters and the Formation of Ultraluminous X-ray Sources from Cusps of Compact Remnants
• Multiwavelength Study of Chandra X-Ray Sources in the Antennae
• Infrared Counterparts to Chandra X-Ray Sources in the Antennae
• A First Estimate Of The X-Ray Binary Frequency As A Function Of Star Cluster Mass In A Single Galactic System