Results 101 to 110 of about 35,842 (270)

Silicates in Ultraluminous Infrared Galaxies

The Astrophysical Journal, 2008
We analyze the mid-infrared (MIR) spectra of ultraluminous infrared galaxies (ULIRGs) observed with the Spitzer Space Telescope's Infrared Spectrograph. Dust emission dominates the MIR spectra of ULIRGs, and the reprocessed radiation that emerges is independent of the underlying heating spectrum.
Sirocky, M. M., Levenson, N. A., Elitzur, M., Spoon, H. W. W., Armus, L.   +4 more
openaire   +6 more sources

Clusters, Clumps, Dust, and Gas (CCDG) in NGC 1614: Benchmarking Cluster Demographics in Extreme Systems

The Astronomical Journal
Observations of young star clusters in a variety of galaxies have been used to constrain basic properties related to star formation, such as the fraction of stars found in clusters (Γ) and the shape of the cluster mass function (CMF).
Miranda Caputo, Rupali Chandar, Angus Mok, Sean Linden, Paul Goudfrooij, Bradley C. Whitmore   +5 more
doaj   +1 more source

GOALS-JWST: Mid-infrared Molecular Gas Excitation Probes the Local Conditions of Nuclear Star Clusters and the Active Galactic Nucleus in the LIRG VV 114

The Astrophysical Journal
The enormous increase in mid-IR sensitivity and spatial and spectral resolution provided by the JWST spectrographs enables, for the first time, detailed extragalactic studies of molecular vibrational bands. This opens an entirely new window for the study
Victorine A. Buiten, Paul P. van der Werf, Serena Viti, Lee Armus, Andrew G. Barr, Loreto Barcos-Muñoz, Aaron S. Evans, Hanae Inami, Sean T. Linden, George C. Privon, Yiqing Song, Jeffrey A. Rich, Susanne Aalto, Philip N. Appleton, Torsten Böker, Vassilis Charmandaris, Tanio Diaz-Santos, Christopher C. Hayward, Thomas S.-Y. Lai, Anne M. Medling, Claudio Ricci, Vivian U   +21 more
doaj   +1 more source

Outflows in Infrared-Luminous Starbursts at z < 0.5. II. Analysis and Discussion

, 2005
We have performed an absorption-line survey of outflowing gas in 78 starburst-dominated, infrared-luminous galaxies. This is the largest study of superwinds at z < 3. Superwinds are found in almost all infrared-luminous galaxies, and changes in detection
Rupke, David S., Sanders, D. B., Veilleux, Sylvain   +2 more
core   +1 more source

Pairing statistics for infrared-luminous galaxies

The Astronomical Journal, 1993
A knowledge of the pairing fraction of IR-selected galaxies is important in understanding the role of interactions in star formation and nuclear activity. It is clear that interactions are extremely common among the most IR-luminous systems, but results have been inconsistent for less luminous systems; this may result from using peculiar morphology as ...
J. F. Gallimore, William C. Keel
openaire   +2 more sources

Ultraluminous Infrared Galaxies: QSOs in Formation? [PDF]

The Astrophysical Journal, 2002
accepted to be published in ApJ, 7 ...
Tacconi, L, Genzel, R, Lutz, D, Rigopoulou, D, Baker, A, Iserlohe, C, Tecza, M   +6 more
openaire   +3 more sources

A Complete 16 μm Selected Galaxy Sample at z ∼ 1. II. Morphological Analysis

The Astrophysical Journal
We present a morphological analysis of the 16 μ m flux-density-limited galaxy sample at 0.8 < z < 1.3 from Huang et al. (2021). At the targeted redshift, the 16 μ m emission corresponds to the polycyclic aromatic hydrocarbon feature from intense star ...
Piaoran Liang, Y. Sophia Dai, Jia-Sheng Huang, Cheng Cheng, Yaru Shi   +4 more
doaj   +1 more source

GOALS-JWST: Small Neutral Grains and Enhanced 3.3 μm PAH Emission in the Seyfert Galaxy NGC 7469

The Astrophysical Journal Letters, 2023
We present James Webb Space Telescope (JWST) Near Infrared Spectrograph (NIRSpec) integral field spectroscopy of the nearby luminous infrared galaxy NGC 7469.
Thomas S.-Y. Lai, Lee Armus, Marina Bianchin, Tanio Díaz-Santos, Sean T. Linden, George C. Privon, Hanae Inami, Vivian U, Thomas Bohn, Aaron S. Evans, Kirsten L. Larson, Brandon S. Hensley, J.-D. T. Smith, Matthew A. Malkan, Yiqing Song, Sabrina Stierwalt, Paul P. van der Werf, Jed McKinney, Susanne Aalto, Victorine A. Buiten, Jeff Rich, Vassilis Charmandaris, Philip Appleton, Loreto Barcos-Muñoz, Torsten Böker, Luke Finnerty, Justin A. Kader, David R. Law, Anne M. Medling, Michael J. I. Brown, Christopher C. Hayward, Justin Howell, Kazushi Iwasawa, Francisca Kemper, Jason Marshall, Joseph M. Mazzarella, Francisco Müller-Sánchez, Eric J. Murphy, David Sanders, Jason Surace   +39 more
doaj   +1 more source

Characterising Nearby Luminous Infrared Galaxies

, 2017
Luminous InfraRed Galaxies (LIRGs) in the local universe are known to be highly interacting galaxies with strong star-formation in obscured environments. LIRGs have diversity in terms of morphology and mode and location of SF, while their even more energetic counterparts, the Ultra-Luminous IR galaxies, ULIRGs, (LIR ≥ 10^12 Lsol ) are normally ...
Petri Väisänen, R. Ramphul, K. Van der Heyden   +2 more
openaire   +2 more sources

Spitzer/IRS Mapping of Local Luminous Infrared Galaxies [PDF]

, 2010
We present results of our program Spitzer/IRS Mapping of local Luminous Infrared Galaxies (LIRGs). The maps cover the central 20"x20" or 30"x 30" regions of the galaxies, and use all four IRS modules to cover the full 5-38 microns spectral range. We have built spectral maps of the main mid-IR emission lines, continuum and PAH features, and extracted 1D
Almudena Alonso-Herrero, Almudena Alonso-Herrero, Miguel Pereira-Santaella, Miguel Pereira-Santaella, Luis Colina, Luis Colina, George H. Rieke, George H. Rieke   +7 more
openaire   +4 more sources