Results 111 to 120 of about 36,025 (222)

Extended Star Formation in Luminous Infrared Galaxies at z ∼ 1 in the SMILES Field

The Astrophysical Journal
Luminous infrared galaxies (LIRGs) and ultraluminous infrared galaxies (ULIRGs) in the local Universe are highly centrally concentrated in the mid-infrared (MIR) and substantially more likely than non-(U)LIRGs to be involved in mergers.
Michael K. Florian, George H. Rieke, Stacey Alberts, Irene Shivaei, Jakob M. Helton, Jianwei Lyu, Kevin N. Hainline, Zhiyuan Ji   +7 more
doaj   +1 more source

Comparison of dust-to-gas ratios in luminous, ultraluminous, and hyperluminous infrared galaxies

, 2007
The dust-to-gas ratios in three different samples of luminous, ultraluminous, and hyperluminous infrared galaxies are calculated by modelling their radio to soft X-ray spectral energy distributions using composite models which account for the ...
Contini, M., Contini, T.
core   +3 more sources

What powers luminous infrared galaxies?

Astronomy & Astrophysics, 1996
Based on the initial data sets taken with the ISO short wavelength spectrometer (SWS) we present a first discussion of the source of luminosity of (ultra-)luminous infrared galaxies (ULIRGs). By comparison of observations of 2.5-45 mu m lines to classical starbursts and active galactic nuclei and by modelling of the line emission we show that three key
Lutz, D, Genzel, R, Sternberg, A, Netzer, H, Kunze, D, Rigopoulou, D, Sturm, E, Egami, E, Feuchtgruber, H, Moorwood, A, deGraauw, T   +10 more
openaire   +2 more sources

The Role of Starburst-AGN composites in Luminous Infrared Galaxy Mergers: Insights from the New Optical Classification Scheme

, 2009
We investigate the fraction of starbursts, starburst-AGN composites, Seyferts, and LINERs as a function of infrared luminosity (L_IR) and merger progress for ~500 infrared-selected galaxies. Using the new optical classifications afforded by the extremely
Kewley, L. J., Sanders, D. B., Yuan, T. -T.   +2 more
core   +1 more source

PEARLS: Discovery of Point-source Features within Galaxies in the North Ecliptic Pole Time Domain Field

The Astrophysical Journal
The first public 0.9–4.4 μ m NIRCam images of the North Ecliptic Pole Time Domain Field uncovered galaxies displaying point-source features in their cores as seen in the longer-wavelength filters. We visually identified a sample of 66 galaxies (∼1 galaxy
Rafael Ortiz III, Rogier A. Windhorst, Seth H. Cohen, Steven P. Willner, Rolf A. Jansen, Timothy Carleton, Patrick S. Kamieneski, Michael J. Rutkowski, Brent M. Smith, Jake Summers, Cheng Cheng, Dan Coe, Christopher J. Conselice, Jose M. Diego, Simon P. Driver, Jordan C. J. D’Silva, Brenda L. Frye, Hansung B. Gim, Norman A. Grogin, Heidi B. Hammel, Nimish P. Hathi, Benne W. Holwerda, Minhee Hyun, Myungshin Im, William C. Keel, Anton M. Koekemoer, Juno Li, Madeline A. Marshall, Tyler J. McCabe, Noah J. McLeod, Stefanie N. Milam, Rosalia O’Brien, Nor Pirzkal, Aaron S. G. Robotham, Russell E. Ryan Jr., Christopher N. A. Willmer, Haojing Yan, Min S. Yun, Adi Zitrin   +38 more
doaj   +1 more source

$^{13}CO(J = 1 -- 0)$ Depression in Luminous Starburst Mergers

, 1998
It is known that the class of luminous starburst galaxies tends to have higher $R =^{12}CO(J=1--0)/^{13}CO(J=1--0)$ integrated line intensity ratios ($R>20$) than normal spiral galaxies ($R \sim 10$). Since most previous studies investigated only $R$, it
Aalto S., Aalto S., Becker R., Casoli F., Casoli F., Casoli F., Freeman K. C., Garay G., Henkel C., Henkel C., Henkel C., Sage L. J., Wiklind T., Yoshiaki Taniguchi, Youichi Ohyama   +14 more
core   +1 more source

Calibrating Mid-infrared Emission Features as Diagnostics of Star Formation in Infrared-luminous Galaxies via Radiative Transfer Modeling

The Astrophysical Journal
Luminous infrared (IR) galaxies are key sites of obscured stellar mass assembly at z > 0.5. Their star formation rates (SFRs) are often estimated using the luminosities of the 6.2 and 11.2 μ m polycyclic aromatic hydrocarbon (PAH) features or those of ...
Loren Robinson, Duncan Farrah, Andreas Efstathiou, Athena Engholm, Evanthia Hatziminaoglou, Maya Joyce, Vianney Lebouteiller, Sara Petty, L. Kate Pitchford, José Afonso, Dave L. Clements, Mark Lacy, Chris Pearson, Dimitra Rigopoulou, Michael Rowan-Robinson, Lingyu Wang   +15 more
doaj   +1 more source

Statistics of associations among IR galaxies [PDF]

In the course of expanding the search of Kleinmann et. al. (1988) for distant, infrared-luminous objects, the authors noticed (as is often remarked) that a large number of infrared-selected galaxies have close neighbors or show merger characteristics (e ...
Gallimore, Jack F., Keel, William C.
core   +1 more source

The role of the most luminous, obscured AGN in galaxy assembly at z~2

, 2017
We present HST WFC3 F160W imaging and infrared spectral energy distributions for twelve extremely luminous, obscured AGN at $1 ...
Assef, Roberto, Benford, Dominic, Blain, Andrew, Bridge, Carrie, Connolly, Brian, Efstathiou, Andreas, Eisenhardt, Peter, Farrah, Duncan, Jarrett, Tom, Jones, Suzy, Lacy, Mark, Lake, Sean, Moustakas, Leonidas, Petty, Sara, Stern, Daniel, Tsai, Chao-Wei, Wu, Jingwen   +16 more
core   +1 more source

Major Mergers Host the Most Luminous Red Quasars at z ~ 2: A Hubble Space Telescope WFC3/IR Study

, 2015
We used the Hubble Space Telescope WFC3 near-infrared camera to image the host galaxies of a sample of eleven luminous, dust-reddened quasars at z ~ 2 -- the peak epoch of black hole growth and star formation in the Universe -- to test the merger-driven ...
Glikman, Eilat, Lacy, M., Mailly, Madeline, Schawinski, Kevin, Simmons, Brooke, Urry, C. M.   +5 more
core   +1 more source