Results 51 to 60 of about 72,131 (316)

The Role of AGN in Luminous Infrared Galaxies from the Multiwavelength Perspective

Universe, 2022
Galaxy mergers provide a mechanism for galaxies to effectively funnel gas and materials toward their nuclei and fuel the central starbursts and accretion of supermassive black holes.
Vivian U
doaj   +1 more source

An ISOCAM survey through gravitationally lensing galaxy clusters. III. New results from mid-infrared observations of th e cluster Abell 2219 [PDF]

, 2004
The massive cluster of galaxies Abell 2219 (z = 0.228) was observed at 14.3 $\mu$m with the Infrared Space Observatory and results were published by Barvainis et al. (1999). These observations have been reanalyzed using a method specifically designed for
A. Biviano, Abell, Allen, Altieri, Andreon, Aussel, B. Altieri, B. McBreen, B. O'Halloran, Bacchi, Bahcall, Balogh, Barvainis, Bertin, Boschin, Boselli, Boselli, Burke, Böhringer, C. Sanchez-Fernandez, Carlberg, Cesarsky, Contursi, Coulais, Czoske, Czoske, D. Coia, Dole, Duc, Elbaz, Elbaz, Fadda, Franceschini, Genzel, Gladders, I. Smail, J.-P. Kneib, Kennicutt, Kessler, L. Metcalfe, Lari, Lémonon, Mann, Mellier, Metcalfe, Oemler, Oliver, Ott, Pierre, Pozzi, Rieke, Rizza, S. McBreen, Sato, Schuecker, Serjeant, Silva, Smail, Smail, Smail, Smith, Smith, Soucail, Stanford, Yamada   +64 more
core   +2 more sources

ALMA HCN and HCO+ J=3-2 observations of optical Seyfert and luminous infrared galaxies -- Confirmation of elevated HCN-to-HCO+ flux ratios in AGNs -- [PDF]

, 2016
We present the results of our ALMA observations of three AGN-dominated nuclei in optical Seyfert 1 galaxies (NGC 7469, I Zw 1, and IC 4329 A) and eleven luminous infrared galaxies (LIRGs) with various levels of infrared estimated energetic contributions ...
M. Imanishi, K. Nakanishi, Takuma Izumi SubaruNAOJ, Naoj, U. Tokyo   +4 more
semanticscholar   +1 more source

Evolution of the ISM in luminous infrared galaxies [PDF]

Astronomy and Astrophysics, 2010
Aims. Molecules that trace the high-density regions of the interstellar medium may be used to evaluate the changing physical and chemical environment during the ongoing nuclear activity in (ultra-) luminous infrared galaxies (ULIRGs).Methods. The changing ratios of the HCN (1-0), HNC (1-0), HCO(+) (1-0), CN (1-0) and CN (2-1), and CS (3-2) transitions ...
Baan, W. A., Loenen, A. F., Spaans, M.
openaire   +2 more sources

Spitzer Mid-Infrared Spectroscopy of 70um-Selected Distant Luminous Infrared Galaxies [PDF]

, 2007
We present mid-infrared spectroscopy obtained with the Spitzer Space Telescope of a sample of 11 optically faint, infrared luminous galaxies selected from a Spitzer MIPS 70um imaging survey of the NDWFS Bootes field.
Arjun Dey, B. T. Soifer, Buell T. Jannuzi, Dan W. Weedman, Emeric Le Floc’h, Howard A. Smith, Jim R. Houck, Kate Brand, Lee Armus, Saunders W., Sturm E., Vandana Desai   +11 more
core   +2 more sources

Star formation histories in mergers: the spatially resolved properties of the early-stage merger luminous infrared galaxies IC 1623 and NGC 6090 [PDF]

, 2017
The role of major mergers in galaxy evolution is investigated through a detailed characterization of the stellar populations, ionized gas properties and star formation rates (SFR) in the early-stage merger luminous infrared galaxies (LIRGs) IC 1623 W and
C. Cortijo-Ferrero, R. Delgado, E. Perez, R. C. Fernandes, Sebastián F. Sánchez, A. Amorim, P. Matteo, R. García-Benito, E. Lacerda, R. Fern'andez, C. Tadhunter   +10 more
semanticscholar   +1 more source

GOALS-JWST: NIRCam and MIRI Imaging of the Circumnuclear Starburst Ring in NGC 7469

The Astrophysical Journal Letters, 2023
We present James Webb Space Telescope (JWST) imaging of NGC 7469 with the Near-Infrared Camera and the Mid-InfraRed Instrument. NGC 7469 is a nearby, z = 0.01627, luminous infrared galaxy that hosts both a Seyfert Type-1.5 nucleus and a circumnuclear ...
Thomas Bohn, Hanae Inami, Tanio Diaz-Santos, Lee Armus, S. T. Linden, Vivian U, Jason Surace, Kirsten L. Larson, Aaron S. Evans, Shunshi Hoshioka, Thomas Lai, Yiqing Song, Joseph M. Mazzarella, Loreto Barcos-Munoz, Vassilis Charmandaris, Justin H. Howell, Anne M. Medling, George C. Privon, Jeffrey A. Rich, Sabrina Stierwalt, Susanne Aalto, Torsten Böker, Michael J. I. Brown, Kazushi Iwasawa, Matthew A. Malkan, Paul P. van der Werf, Philip Appleton, Christopher C. Hayward, Francisca Kemper, David Law, Jason Marshall, Eric J. Murphy, David Sanders   +32 more
doaj   +1 more source

Quasars and Ultraluminous Infrared Galaxies: At the Limit? [PDF]

, 1998
We have detected the host galaxies of 16 nearby, radio-quiet quasars using images obtained with the Near-Infrared Camera and Multi-Object Spectrometer (NICMOS).
Cristiani S., G. H. Rieke, Haehnelt M. G., K. K. McLeod, Kormendy J., L. J. Storrie-Lombardi, Ronnback J., Sanders D. B., Soltan A., Taylor G. L.   +9 more
core   +3 more sources

Buried AGNs and Starbursts in Luminous and Ultra-Luminous Infrared Galaxies [PDF]

Proceedings of the International Astronomical Union, 2009
AbstractWe present the first results of a Spitzer Space Telescope survey of 28 LIRGs and ULIRGs. We used infrared emission lines to separeate AGN and starburst powered systems. We find strong evidence that the incidence of nuclear activity increases with infrared luminosity.
João Rodrigo Souza Leão, Patrícia Hepp, Claus Leitherer   +2 more
openalex   +2 more sources

Star formation and AGN activity in a sample of local luminous infrared galaxies through multiwavelength characterization [PDF]

, 2017
Nuclear starbursts and AGN activity are the main heating processes in luminous infrared galaxies (LIRGs) and their relationship is fundamental to understand galaxy evolution.
R. Herrero-Illana, M. P'erez-Torres, Z. Randriamanakoto, A. Alberdi, A. Efstathiou, P. Vaisanen, E. Kankare, E. Kool, S. Mattila, R. Ramphul, S. Ryder   +10 more
semanticscholar   +1 more source