Tidal Tails in Interacting Galaxies: Formation of Compact Stellar Structures (2009)
Mullan, B., Charlton, J. C., Konstantopoulos, I. S., Bastian, N., Chandar, R., Durrell, P. R., ...
We have used V- and I- band images from the Hubble Space Telescope (HST) to identify compact stellar clusters within the tidal tails of twelve different interacting galaxies. The seventeen tails...
ESO 381-47, an early-type galaxy with extended HI and a star forming ring (2009)
Donovan, Jennifer L., Serra, Paolo, Van Gorkom, J. H., Trager, S. C., Oosterloo, Tom, Hibbard, J. E., ...
ESO 381-47 is an early type galaxy with an extended HI disk. GALEX and very deep optical images reveal a distinct stellar ring far outside the optical body with a diameter of ~30 kpc, which has...
J. E. Hibbard, M. P. Rupen, M. E. Putman
Abstract. Significant numbers of high-velocity Hi clouds (HVCs) have now been detected in Hff, with a subset seen in low ionization lines (e.g. [NII]). It was originally hoped that the observed Hff...
A 180 Kpc Tidal Tail In The Luminous Infrared Merger Arp 299 (2007)
Hibbard National Radio, J. E. Hibbard, M. S. Yun
We present VLA H i observations and UH88 00 deep optical B- and R-band observations of the IR luminous merger Arp 299 (= NGC 3690 + IC 694). These data reveal a gas-rich (MHI = 3:3 \Theta 10 9 M fi )...
A 180 Kpc Tidal Tail In The Luminous Infrared Merger Arp 299 (2007)
Hibbard National Radio, J. E. Hibbard, M. S. Yun
We present VLA H i observations and UH88 00 deep optical B- and R-band observations of the IR luminous merger Arp 299 (= NGC 3690 + IC 694). These data reveal a gas-rich (MHI = 3:3 \Theta 10 9 M fi )...
Luminosity Profiles Of Merger Remnants (2007)
Hibbard National Radio, J. E. Hibbard, Min S. Yun
Using published luminosity and molecular gas profiles of the late-stage mergers NGC 3921, NGC 7252, and Arp 220, we examine the expected luminosity profiles of the evolved merger remnants, especially...
Radio Agns Among Luminous Infrared Galaxies (2007)
M. S. Yun, J. E. Hibbard, J. J. Condon, Naveen Reddy, W Hz
. An analysis of radio and FIR emission in over 1500 IRAS selected galaxies produces a good linear correlation between radio and FIR luminosity, indicating that star formation in normal field...
Poster No, M. Kohring, J. E. Hibbard, J. E. Hibbard, ...
[3.] \A ROSAT Image of the Merger NGC 7252", J.E. Hibbard, J.H. van Gorkom, & F. Schweizer,
We present high-quality aperture synthesis observations of the neutral hydrogen distribution in a sample of five galactic systems believed to be involved in progressive stages of merging: Arp 295,...
The Revealing Dust: Mid-Infrared Activity in Hickson Compact Group Galaxy Nuclei (2007)
Gallagher, S. C., Johnson, K. E., Hornschemeier, A. E., Charlton, J. C., Hibbard, J. E.
We present a sample of 46 galaxy nuclei from 12 nearby (z
An HI Threshold for Star Cluster Formation in Tidal Debris (2007)
Maybhate, A., Masiero, J., Hibbard, J. E., Charlton, J. C., Palma, C., Knierman, K. A., ...
Super star clusters are young, compact star clusters found in the central regions of interacting galaxies. Recently, they have also been reported to preferentially form in certain tidal tails, but...
Near-UV Merger Signatures in Early-Type Galaxies (2007)
Martin, Jodie R., O'Connell, Robert W., Hibbard, J. E.
Hierarchical assembly of early-type galaxies (Es and S0s) over an extended period of time will result in mixed-generation stellar populations. Here we look for signatures of composite populations in...
The Infrared Properties of Hickson Compact Groups (2007)
Johnson, K. E., Hibbard, J. E., Gallagher, S. C., Charlton, J. C., Hornschemeier, A. E., Jarrett, T. H., ...
Compact groups of galaxies provide a unique environment to study the mechanisms by which star formation occurs amid continuous gravitational encounters. We present 2MASS (JHK), Spitzer IRAC (3.5-8...
How Dry Are Red Mergers? (2007)
Donovan, Jennifer L., Hibbard, J. E., Van Gorkom, J. H.
The focus of current research in galaxy evolution has increasingly turned to understanding the effect that mergers have on the evolution of systems on the red sequence. For those interactions...
UV Morphology and Star Formation in the Tidal Tails of NGC 4038/39 (2005)
Hibbard, J. E., Bianchi, L., Thilker, D. A., Rich, R. M., Team, The GALEX Science
We present GALEX FUV (1530 A) and NUV (2310 A) observations of the archetypal merging system NGC 4038/39, ``The Antennae\". Both tails are relatively bright in the UV, especially in the vicinity of...
UV Morphology and Star Formation in the Tidal Tails of NGC 4038/39 (2004)
Hibbard, J. E., Bianchi, L., Thilker, D. A., Rich, R. M., Team, The GALEX Science
We present GALEX FUV (1530 A) and NUV (2310 A) observations of the archetypal merging system NGC 4038/39, ``The Antennae". Both tails are relatively bright in the UV, especially in the vicinity of...
Laine, S., Van Der Marel, R. P., Rossa, J., Hibbard, J. E., Mihos, J. C., Boker, T., ...
We report on the properties of nuclear regions in the Toomre sequence of merging galaxies, based on imaging data gathered with the Hubble Space Telescope WFPC2 camera.
UV Morphology and Star Formation in the Tidal Tails of NGC 4038/39 (2004)
Hibbard, J. E., Bianchi, L., Thilker, D. A., Rich, R. M., Team, The GALEX Science
We present GALEX FUV (1530 A) and NUV (2310 A) observations of the archetypal merging system NGC 4038/39, ``The Antennae\". Both tails are relatively bright in the UV, especially in the vicinity of...
UV Morphology and Star Formation in the Tidal Tails of NGC 4038/39 (2004)
Hibbard, J. E., Bianchi, L., Thilker, D. A., Rich, R. M., Team, The GALEX Science
We present GALEX FUV (1530 A) and NUV (2310 A) observations of the archetypal merging system NGC 4038/39, ``The Antennae\". Both tails are relatively bright in the UV, especially in the vicinity of...
Knierman, Karen, Gallagher, Sarah, Charlton, Jane, Hunsberger, Sally, Whitmore, Bradley, Kundu, Arunav, ...
Using V and I images obtained with WFPC2/HST, we investigate compact stellar structures within tidal tails. Six regions of tidal debris in the four classic ``Toomre Sequence'' mergers: NGC 4038/39...
A Search for HI in Five Ellipticals with Fine Structure (2002)
We report on VLA HI spectral line observations of five early-type galaxies classified as optically peculiar due to the presence of jets, ripples or other optical "fine structure". We detect HI within...
Hibbard, J. E., Van Gorkom, J. H., Rupen, M. P., Schiminovich, D.
We have begun a compilation of HI maps of peculiar galaxies kindly contributed by individual investigators, many as part of the ``Gas & Galaxy Evolution'' conference. In this gallery we present...
Hibbard, J. E., Van Der Hulst, J. M., Barnes, J. E., Rich, R. M.
We present new VLA C+D-array HI observations and optical and NIR imaging of the well known interacting system NGC 4038/9, ``The Antennae''. The radio data reveal a wealth of gaseous sub-structure...
HST Observations of the Nuclear Regions of the Toomre Sequence of Merging Galaxies (2001)
Laine, S., Van Der Marel, R. P., Boeker, T., Mihos, J. C., Hibbard, J. E., Zabludoff, A. I.
We present first results from an HST WFPC2 imaging and STIS spectroscopy program to investigate the structural and star forming properties in the nuclear regions of the Toomre Sequence of merging...
The Cold and Hot Gas Content of Fine-Structure E and S0 Galaxies (2000)
Sansom, A. E., Hibbard, J. E., Schweizer, Francois
We investigate trends of the cold and hot gas content of early-type galaxies with the presence of optical morphological peculiarities, as measured by the fine-structure index (Sigma). HI mapping...
J. E. Hibbard, W. D. Vacca, M. S. Yun
As part of several H i synthesis mapping studies of merging galaxies, we have mapped the tidal gas in the three disk-disk merger systems Arp 157 (NGC 520), Arp 220, and Arp 299 (NGC 3690). These...
J. E. Hibbard, W. D. Vagga, W. D. Vacca, M. S. Yun
As part of several H i synthesis mapping studies of merging galaxies, we have mapped the tidal gas in the three disk-disk merger systems Arp 157 (NGC 520), Arp 220, and Arp 299 (NGC 3690). These...
Hibbard, J. E., Vacca, W. D., Yun, M. S.
We have mapped the neutral atomic gas (HI) in the three disk-disk merger systems NGC 520, Arp 220, and Arp 299. These systems differ from the majority of the mergers mapped in HI, in that their...
Mergers of Galaxies from an HI Perspective (1999)
HI spectral line mapping studies are a unique probe of morphologically peculiar systems. Not only does HI imaging often reveal peculiarities that are totally unsuspected at optical wavelengths, but...
Luminosity Profiles of Merger Remnants (1999)
Using published luminosity and molecular gas profiles of the late-stage mergers NGC 3921, NGC 7252 and Arp 220, we examine the expected luminosity profiles of the evolved merger remnants, especially...
Molecular Gas in Optically Selected Mergers (1999)
We have mapped the 2.6 mm CO (1-0) emission in three optically selected "Toomre Sequence" mergers (NGC 520, NGC 3921, NGC 4676). The molecular gas distribution is well resolved by the observations....
A 180 Kpc Tidal Tail in the Luminous Infrared Merger Arp 299 (1999)
We present VLA HI observations and UH88 deep optical B- and R-band observations of the IR luminous merger Arp 299 (= NGC 3690 + IC 694). These data reveal a gas-rich, optically faint tidal tail with...
Ohyama, Youichi, Taniguchi, Yoshiaki, Hibbard, J. E., Vacca, William D.
We present redshift measurements of four faint galaxies around the archetypal ultraluminous infrared galaxy Arp 220. These galaxies have significantly higher redshifts ($z \sim$ 0.036 -- 0.091) than...
A 180 Kiloparsec Tidal Tail In The Luminous Infrared Merger Arp 299 (1999)
We present VLA H I observations and University of Hawaii 88 inch (2.2 m) deep optical B- and R-band observations of the IR-luminous merger Arp 299 (\NGC 3690 ] IC 694). These data reveal a gas-rich...
J. E. Hibbard, W. D. Vacca, M. S. Yun
As part of several H I synthesis-mapping studies of merging galaxies, we have mapped the tidal gas in the three disk-disk merger systems Arp 157 (NGC 520), Arp 220, and Arp 299 (NGC 3690). These...
The Apparent Morphology of Peculiar Galaxies at Intermediate to High Redshifts (1997)
We use rest frame ultraviolet (UV), B, and V band images of five nearby (z1.5 images fail to recover the true global properties of the underlying systems. This is because the high-z observations are...
Mergers, Interactions, and The Fueling of Starbursts (1997)
The most active starbursts are found in galaxies with the highest IR luminosities, with peak star formation rates and efficiencies that are over an order of magnitude higher than in normal disk...
H I, H II, and R-Band Observations of a Galactic Merger Sequence (1995)
Hibbard, J. E., Van Gorkom, J. H.
We present high-quality aperture synthesis observations of the neutral hydrogen distribution in a sample of five galactic systems believed to be involved in progressive stages of merging: Arp295,...
An H, An H, J. E. Hibbard, Michael P. Rupen, David Schiminovich
Abstract. We have begun a compilation of H i maps of peculiar galaxies kindly contributed by individual investigators, many as part of the \Gas & Galaxy Evolution " conference. In this...