The 1 < z < 5 Infrared Luminosity Function of Type I Quasars, Michael J. I. Brown, Kate Brand, Arjun Dey, Buell T. Jannuzi, Richard Cool, Emeric Le Floc'h, Christopher S. Kochanek, Lee Armus, Chao Bian, James L. Higdon, Sarah J.U. Higdon, Casey Papovich, George Rieke, Marcia Rieke, J. D. Smith, B. T. Soifer, Dan Weedman
James L. Higdon

Redshifts from Spitzer Spectra for Optically Faint, Radio-Selected Infrared Sources, D. W. Weedman, Emeric Le Floc'h, Sarah J.U. Higdon, James L. Higdon, J. R. Houck
James L. Higdon

Spitzer Infrared Spectrograph Survey of Warm Molecular Hydrogen in Ultra-luminous Infrared Galaxies, Sarah J.U. Higdon, L. Armus, James L. Higdon, B. T. Soifer, Henrik Spoon
James L. Higdon

Spitzer IRS Spectra of Optically Faint Infrared Sources with Weak Spectral Features, D. W. Weedman, B. T. Soifer, Sarah J.U. Higdon, James L. Higdon, J. R. Houck, Emeric Le Floc'h, M. J. I. Brown, A. Dey, B. T. Jannuzi, M. Rieke, V. Desai, C. Bian, D. Thompson, L. Armus, P. Eisenhardt, S. P. Willner
James L. Higdon

MIPS J142824.0+352619: A Hyper-luminous Starburst Galaxy at z = 1.325, C. Borys, A.W. Blain, A. Dey, Emeric Le Floc'h, B. T. Jannuzi, C. Bian, M. Brodwin, K. Menéndez-Delmestre, D. Thompson, K. Brand, M. J. I. Brown, C. D. Dowell, P. Eisenhardt, Duncan Farrah, D T. Frayer, James L. Higdon, Sarah J.U. Higdon, T. Phillips, B. T. Soifer, D. Stern, D. W. Weedman
James L. Higdon

First Detection of PAHs and Warm Molecular Hydrogen in Candidate Tidal Dwarf Galaxies, James L. Higdon, Sarah J.U. Higdon, J. Marshall
James L. Higdon

IRS Spectra of Two Ultraluminous Infrared Galaxies at z = 1.3, V. Desai, L. Armus, B. T. Soifer, D. W. Weedman, Sarah J.U. Higdon, C. Bian, C. Borys, H. W. W. Spoon, V. Charmandaris, K. Brand, M. J. I. Brown, A. Dey, James L. Higdon, J. R. Houck, B. T. Jannuzi, Emeric Le Floc'h, M. L. N. Ashby, H. A. Smith
James L. Higdon

Radio Observations of the Hubble Deep Field-South Region. I. Survey Description and Initial Results, Ray P. Norris, Minh T. Huynh, Carole A. Jackson, Brian J. Boyle, Ronald D. Ekers, Daniel A. Mitchell, Mark H. Wieringa, Robert E. Williams, Andrew M. Hopkins, James L. Higdon
James L. Higdon

Unveiling ‘Invisible’ Galaxies with the Spitzer Space Telescope, James L. Higdon
James L. Higdon

Spectroscopic Redshifts to z > 2 for Optically Obscured Sources Discovered with the Spitzer Space Telescope, J. R. Houck, B. T. Soifer, D. W. Weedman, Sarah J.U. Higdon, James L. Higdon, T. Herter, M. J. I. Brown, A. Dey, B. T. Jannuzi, Emeric Le Floc'h, M. Rieke, L. Armus, V. Charmandaris, B. R. Brandl, H.I. Teplitz
James L. Higdon

Spitzer Observations of Optically "Invisible" Radio and X-Ray Sources: High-Redshift Active Galactic Nuclei, James L. Higdon, Sarah J.U. Higdon, D. W. Weedman, J. R. Houck, Emeric Le Floc'h, M. J. I. Brown, A. Dey, B. T. Jannuzi, B. T. Soifer, M. J. Rieke
James L. Higdon

Investigating Galaxy Clusters In the Infrared, James L. Higdon, Sarah J.U. Higdon, T. L. Herter
James L. Higdon

Infrared Observations Of The Z=2.3 Coup Fourre’ Galaxy Cluster, James L. Higdon
James L. Higdon

A Starburst/AGN Diagnostic For The Spitzer Space Telescope, V. Charmandaris, L. Armus, J. R. Houck, B. T. Soifer, D. W. Weedman, H. W. W. Spoon, Sarah J.U. Higdon, B. R. Brandl, P. N. Appleton, H.I. Teplitz, Lei Hao, D. Devost, James L. Higdon, C. Lawrence
James L. Higdon

The Nature of Optically Invisible Radio Sources In The NOAO Deep Wide Field In Bootes, James L. Higdon, Sarah J.U. Higdon, D. W. Weedman, M. Brown, Emeric Le Floc'h, A. Dey, B. T. Jannuzi, M. Rieke, B. T. Soifer, J. R. Houck
James L. Higdon

Exploring Galaxy Clusters In The Infrared, James L. Higdon
James L. Higdon

The In-Flight Performance of the Infrared Spectrograph, J. R. Houck, J. E. Van Cleve, T. L. Roellig, B. R. Brandl, J. Marriott, M. Huisjen, J. Troeltzsch, T.L. Herter, G.E. Gull, D.M. Watson, K.I. Uchida, D.J. Barry, V. Charmandaris, D. Devost, W.J. Forrest, P. Hall, Sarah J.U. Higdon, James L. Higdon, C.R. Lawrence, K. Matthews, H. J. Reitsema, G.C. Sloan, B. T. Soifer, D. W. Weedman, Lee Armus, P. Morris, C. J. Grillmair, P. N. Appleton, H.I. Teplitz, B. Unruh, J. Winghart
James L. Higdon

First SIRTF-IRS Extragalactic Results, B. R. Brandl, D. W. Weedman, V. Charmandaris, B. T. Soifer, Lee Armus, T. L. Herter, D. Devost, Sarah J.U. Higdon, James L. Higdon, C.R. Lawrence, P. N. Appleton, H.I. Teplitz, J. R. Houck
James L. Higdon

The Use of the Infrared Spectrograph (IRS), Including Its Peak-Up Function, K.I. Uchida, J. E. Van Cleve, J. R. Houck, T. L. Roellig, B. R. Brandl, H.I. Teplitz, V. Charmandaris, J. Troeltzsch, L. Armus, C. J. Grillmair, P. W. Morris, J. G. Ingalls, S. B. Fajardo-Acosta, M. J. Burgdorf, P. N. Appleton, D. Devost, G. C. Sloan, D. J. Barry, P. Hall, B. Unruh, J. Winghart, Sarah J.U. Higdon, James L. Higdon
James L. Higdon

Observations of Ultraluminous Infrared Galaxies with the Infrared Spectrograph (IRS) on the Spitzer Space Telescope: Early Results on Markarian 1014, Markarian 463, and UGC 5101, Lee Armus, V. Charmandaris, H. W. W. Spoon, J. R. Houck, B. T. Soifer, B. R. Brandl, P. N. Appleton, H.I. Teplitz, Sarah J.U. Higdon, D. W. Weedman, D. Devost, P. W. Morris, K. I. Uchida, J. van Cleve, D. J. Barry, G. C. Sloan, C. J. Grillmair, M. J. Burgdorf, S. B. Fajardo-Acosta, J. G. Ingalls, James L. Higdon, L. Hao, J. Bernard-Salas, T. L. Herter, J. Troeltzsch, B. Unruh, M. Winghart
James L. Higdon

First Mid-Infrared Spectrum of a Faint High-z Galaxy with the Infrared Spectrograph on the Spitzer Space Telescope, Sarah J.U. Higdon, D. W. Weedman, James L. Higdon, T. L. Herter, V. Charmandaris, J. R. Houck, B. T. Soifer, B. R. Brandl, Lee Armus, L. Hao
James L. Higdon

The SMART Data Analysis Package for the Infrared Spectrograph on the Spitzer Space Telescope, Sarah J.U. Higdon, D. Devost, James L. Higdon, B. R. Brandl, J. R. Houck, P. Hall, D. Berry, V. Charmandaris, J. D. T. Smith, G. C. Sloan, J. Green
James L. Higdon

Imaging of High-Redshift Submillimeter Galaxies at 16 and 22 microns with the Spitzer Infrared Spectrograph (IRS)* Peak-up Cameras: Revealing a population at z > 2.5 **, Vassilis Charmandaris, K. I. Uchida, D. W. Weedman, T. L. Herter, J. R. Houck, H.I. Teplitz, Lee Armus, B. R. Brandl, S. J. U. Higdon, B. T. Soifer, P. N. Appleton, J. van Cleve, James L. Higdon
James L. Higdon

Exploring the Distant Universe With the Spitzer Space Telescope, Sarah J.U. Higdon, James L. Higdon, D. W. Weedman, J. R. Houck, B. T. Soifer, Lee Armus, V. Charmandaris, T. L. Herter
James L. Higdon

Massive Star Formation and the Neutral ISM in Ring galaxies, James L. Higdon, J. F. Wallin, R. J. Rand, Lister Staveley-Smith, L. M. Simon
James L. Higdon

Spitzer Infrared Spectrograph (IRS) Observations of the Redshift 3.91 Quasar APM 08279+5255, B. T. Soifer, Vassilis Charmandaris, B. R. Brandl, Lee Armus, P. N. Appleton, M. J. Burgdorf, D. Devost, T. L. Herter, Sarah J.U. Higdon, James L. Higdon, J. R. Houck, C. R. Lawrence, P. W. Morris, H.I. Teplitz, K. I. Uchida, J. van Cleve, D. W. Weedman
James L. Higdon

Infrared Space Observatory Long-Wavelength Spectrometer Spectroscopy of Star-forming Regions in M33, Sarah J.U. Higdon, James L. Higdon, J. M. van der Hulst, G. J. Stacey
James L. Higdon

Centimetre Continuum Emission from Young Stellar Objects in Cederblad 110, K. Lehtinen, J. Harju, S. Kontinen, James L. Higdon
James L. Higdon

A Minor-Merger Interpretation for NGC 1097's Optical Jets, James L. Higdon, John F. Wallin
James L. Higdon

Centimeter Wavelength Continuum Observations of Young Stellar Objects in the Dark Cloud DC 303.8-14.2, K. Lehtinen, James L. Higdon
James L. Higdon

Photometric Analysis of Star Clusters in the Cartwheel's Disk and Inner-Ring, James L. Higdon, Sarah J.U. Higdon
James L. Higdon

Did VV~29 collide with a dark Dark-Matter halo?, F. H. Briggs, O. Möller, James L. Higdon, N. Trentham, E. Ramirez-Ruiz
James L. Higdon

ISO-LWS Spectroscopy of M 33, S. J. Unger, James L. Higdon, J. M. van der Hulst
James L. Higdon

The Molecular & Atomic ISM In The Starburst Ring Galaxy AM0644-741, James L. Higdon, R. J. Rand, M. Nord
James L. Higdon

Peculiar Galaxies, James L. Higdon
James L. Higdon

An HI and Hα Atlas of Ring Galaxies: Probing the Neutral ISM/Starburst Connection, James L. Higdon, J. Wallin, L. Stavely-Smith, R. Rand, M. Yun
James L. Higdon

Imaging of Protostars in Corona Australis with the ATCA, J. Harju, James L. Higdon, K. Lehtinen, M. M. Juvela
James L. Higdon

Measuring the ISM Pressure in M33's Disk, James L. Higdon, J. M. van der Hulst, P. van der Werf, F. Israel
James L. Higdon

Radio Observations of the Hubble Deep Field South: A New Class of Radio-Luminous Galaxies?, Ray P. Norris, A. Hopkins, Robert John Sault, R. D. Ekers, J. Ekers, F. Badia, James L. Higdon, M. H. Wieringa, B. J. Boyle, R. E. Williams
James L. Higdon

Plasma and Warm Dust in the Collisional Ring Galaxy VIIZw466 from VLA and ISO Observations, P. N. Appleton, V. Charmandaris, Cathy Horellou, I. F. Mirabel, F. Ghigo, James L. Higdon, S. Lard
James L. Higdon

The Eastern Arm of M83 Revisited: High-Resolution Mapping of 12 CO(1-0) Emission, Richard J. Rand, James L. Higdon, Steven D. Lord
James L. Higdon

Radio emission from the unusual supernova 1998bw and its association with the γ-ray burst of 25 April 1998, Shri R. Kulkarni, D. A. Frail, M. H. Wieringa, R. D. Ekers, E. M. Sadler, R. M. Wark, James L. Higdon, E.S. Phinney, J. S. Bloom
James L. Higdon

An HI Atlas of Ring Galaxies, James L. Higdon, J. F. Wallin
James L. Higdon

The Eastern Arm of M83 Revisited: A High-Resolution Comparison of CO and Other Spiral Tracers, James L. Higdon
James L. Higdon

An Optical and H I Study of NGC 5850: Victim of a High-Speed Encounter?, James L. Higdon, Ronald J. Buta, Guy B. Purcell
James L. Higdon

The Detection of Massive Molecular Complexes in the Ring Galaxy System Arp 143, James L. Higdon, Richard J. Rand, Steven D. Lord
James L. Higdon

Gas Thresholds and Massive Star Formation in the Magic Mushroom Ring Galaxy, James L. Higdon, J. F. Wallin, L. Staveley-Smith, R. Rand, S. Lord
James L. Higdon

The Ionized ISM of the Cartwheel, James L. Higdon, G. Cecil, S. Lord
James L. Higdon

The Hα Structure and Kinematics of the Cartwheel Ring Galaxy, James L. Higdon, G. Cecil, J. Bland-Hawthorn
James L. Higdon

Wheels of Fire: III. Massive Star Formation in the `Double-Ringed' Ring Galaxy AM0644-741, James L. Higdon, John F. Wallin
James L. Higdon

The Distribution and Origin of Ionized Gas Throughout The Cartwheel Ring Galaxy, James L. Higdon, S. D. Lord, G. Cecil
James L. Higdon

The Neutral ISM-Massive Star Formation Connection in Ring Galaxies, James L. Higdon, J. F. Wallin, S. D. Lord, R. J. Rand, L. Staveley-Smith
James L. Higdon

Wheels of Fire: II. Neutral Hydrogen in the Cartwheel Ring Galaxy, James L. Higdon
James L. Higdon

Dynamically Induced Star Formation in Galaxies from the Passage of Globular Clusters, John F. Wallin, James L. Higdon, Lister Staveley-Smith
James L. Higdon

The Distribution of Atomic Hydrogen in the Interacting Barred Spiral Galaxy NGC 5850, James L. Higdon, R. Buta
James L. Higdon

Optical Monitoring of Luminous AGNs: I. Radio-loud Quasars, Hagai Netzer, Ana Heller, Friedel Loinger, Tal Alexander, J. A. Baldwin, Beverley J. Wills, Mingsheng Han, Marian Frueh, James L. Higdon
James L. Higdon

Wheels of Fire: I. Massive Star Formation in the Cartwheel Ring Galaxy, James L. Higdon
James L. Higdon

Massive Star Formation and Gas Threshold Effects in Ring Galaxies: The Cartwheel and AM0644-741, James L. Higdon, J.F. Wallin, Lister Staveley-Smith, S. D. Lord
James L. Higdon

The Detection of Molecular Gas in the Ring Galaxy ARP 143, James L. Higdon, Beverly J. Smith, Steven D. Lord, Richard J. Rand
James L. Higdon

A Search for CO(1-0) Emission from the Tidal Structures in Interacting and Merging Galaxies, Beverly J. Smith, James L. Higdon
James L. Higdon

NGC 4314 II. HST I-Band Surface Photometry of the Nuclear Region, G. F. Benedict, James L. Higdon, W. H. Jefferys, R. Duncombe, P. D. Hemenway, P. J. Shelus, A. L. Whipple, E. Nelan, D. Story, B. McArthur, J. McCartney, O. G. Franz, L. W. Fredrick, W. F. van Altena
James L. Higdon

Hydrodynamic Models of the Cartwheel Ring Galaxy, Curtis Struck-Marcell, James L. Higdon
James L. Higdon

Large Infrared and Optical Color Gradients in the Cartwheel Ring Galaxy: Evidence for the First Epoch of Star Formation in the Wake of an Expanding Ring, P.M. Marcum, P.N. Appleton, James L. Higdon
James L. Higdon

NGC 4314. I. Visible and Short-Wavelength Infrared Surface Photomentry of the Nucleus and Bar, G. F. Benedict, James L. Higdon, E. V. Tollestrup, J. M. Hahn, P. Harvey
James L. Higdon

A Spatially Resolved Sequence of Stellar Evolution Within the Cartwheel Ring Galaxy, P.M. Marcum, P. N. Appleton, James L. Higdon
James L. Higdon

High Resolution I-band Surface Photometry of the Nuclear Ring in NGC 4314 Obtained with HST, G. F. Benedict, James L. Higdon, W.H. Jeffries, R. Duncombe, P. D. Hemenway, P. J. Shelus, A. L. Whipple, E. Nelan, A. D. Story, B. McArthur, J. McCartney, O. G. Franz, L. W. Fredrick, W. F. van Altena
James L. Higdon

The Optical and Radio Structure of the Cartwheel Ring Galaxy, James L. Higdon
James L. Higdon

BVRIJHK Surface Photometry of the Barred Galaxy NGC 4314, G. F. Benedict, James L. Higdon, E. V. Tollestrup, J. M. Hahn
James L. Higdon

Multipass Prism Monochrometer for Coherent Raman Spectroscopy, Thomas L. Gaussiran, Roger H. Taylor, James L. Higdon, J. W. Keto
James L. Higdon

Neutral Hydrogen Observations of Arp144, James L. Higdon
James L. Higdon

HI Observations of Arp 144 (NGC 7828/29), James L. Higdon
James L. Higdon

The Genesis of the Ring Galaxy ARP 144 (NGC 7828/29), Marshall Joy, H. B. Ellis Jr, E. V. Tollestrup, D. Brock, James L. Higdon, P. Harvey
James L. Higdon