Results 91 to 100 of about 833,501 (156)

Deep Submillimeter and Radio Observations of the SSA22 Field. IV. Spectral Energy Distributions, Star Formation Histories, and the Infrared–Radio Correlation of the 850 μm–selected Submillimeter Galaxies

The Astrophysical Journal
We analyze the spectral energy distributions (SEDs), star formation histories, and infrared–radio correlation (IRRC) of 221 850 μ m–selected submillimeter galaxies (SMGs) in the SSA22 deep field, including both field and protocluster SMGs.
Xin Zeng, Yiping Ao, Ken Mawatari, Hideki Umehata   +3 more
doaj   +1 more source

Origin of Radio Emission in Three Nearby Ultraluminous Infrared Galaxies with Signatures of Luminous Buried Active Galactic Nuclei

The Astrophysical Journal
We report multifrequency Very Long Baseline Array (VLBA) observations at 2.3 and 8.4 GHz of three nearby ultraluminous infrared galaxies, identified via mid-infrared spectroscopic analyses as hosting deeply embedded active galactic nuclei (AGNs ...
Takayuki J. Hayashi, Yoshiaki Hagiwara, Masatoshi Imanishi   +2 more
doaj   +1 more source

Formation of Quasar Nuclei in the Hearts of Ultraluminous Infrared Galaxies

The Astrophysical Journal, 1999
6 pages, no figure.
Taniguchi, Yoshiaki, Satoru, Ikeuchi, Shioya, Yasuhiro   +3 more
openaire   +2 more sources

Resolving the Multiphase Outflow, Shock Signatures, and PAHs in the AGN-starburst Composite ULIRG F10565+2448 with JWST MIRI/MRS

The Astrophysical Journal
We present new James Webb Space Telescope Mid-Infrared Instrument Medium-Resolution Spectrometer observations of the nearby ultraluminous infrared galaxy F10565+2448.
Kylie Yui Dan, Jerome Seebeck, Sylvain Veilleux, David Rupke, Eduardo Gonzalez-Alfonso, Ismael Garcia-Bernete, Weizhe Liu, Dieter Lutz, Marcio Melendez, Miguel Pereira Santaella, Eckhard Sturm, Francesco Tombesi   +11 more
doaj   +1 more source

An ISO survey of PAH features in Ultraluminous Infrared Galaxies

, 1999
We have obtained ISOPHOT-S low resolution mid-infrared spectra of a sample of 60 Ultraluminous Infrared Galaxies (ULIRGs). We use the strength of the 'PAH' mid-infrared features as a discriminator between starburst and AGN activity, and to probe for ...
Moorwood, AFM, Genzel, R, Spoon, HWW, Rigopoulou, Dimitra, Tran, D, Lutz, D, Rigopoulou, D   +6 more
core  

Analysis of the two degree field galaxy redshift survey [PDF]

, 2001
In this Thesis we analyse in detail the Anglo-Australian 2 degree Field Galaxy Redshift Survey (2dFGRS). The goal of this survey is to measure all galaxy redshifts for the 250 000 galaxies brighter than b(_J) = 19.45 spread over ~ 2000 square degrees. At
Norberg, Iohn Peder Ragnar
core  

Spectroscopic Constraints on the Mid-infrared Attenuation Curve. I. Attenuation Model Using Polycyclic Aromatic Hydrocarbon Emission

The Astrophysical Journal
We introduce a novel model to spectroscopically constrain the mid-infrared (MIR) extinction/attenuation curve from 3–17 μ m, using polycyclic aromatic hydrocarbon (PAH) emission drawn from an AKARI–Spitzer extragalactic cross-archival data set. Currently
Thomas S.-Y. Lai, J. D. T. Smith, Els Peeters, Henrik W. W. Spoon, Shunsuke Baba, Masatoshi Imanishi, Takao Nakagawa   +6 more
doaj   +1 more source

Halo Mass of ULIRGs at Cosmic Noon

The Astrophysical Journal
We present a clustering analysis of ∼3000 ultraluminous infrared galaxies (ULIRGs) at z  ∼ 2, uniformly selected by 24 μ m flux and IRAC colors in the COSMOS and BOOTES fields. We measure the angular correlation functions of ULIRGs in both fields and fit
Jun Pan, Ming Li, Cheng Cheng, Jiasheng Huang   +3 more
doaj   +1 more source

Spectrally and Spatially Resolved (Sub)Millimeter HCN-to-HCO+ Flux Ratios in Nearby Ultraluminous Infrared Galaxies

The Astrophysical Journal
We present the results of our investigations of spectrally and spatially resolved (sub)millimeter HCN-to-HCO ^+ flux ratios at J = 2–1, J = 3–2, and/or J = 4–3 in 18 nearby ( z  3 σ detections for both molecular lines) in position-position-velocity (PPV)
Masatoshi Imanishi, Yuri Nishimura, Shunsuke Baba, Kouichiro Nakanishi, Takuma Izumi   +4 more
doaj   +1 more source

JADES: Resolving the Stellar Component and Filamentary Overdense Environment of Hubble Space Telescope (HST)-dark Submillimeter Galaxy HDF850.1 at z = 5.18

The Astrophysical Journal
HDF850.1 is the brightest submillimeter galaxy (SMG) in the Hubble Deep Field. It is known as a heavily dust-obscured star-forming galaxy embedded in an overdense environment at z = 5.18.
Fengwu Sun, Jakob M. Helton, Eiichi Egami, Kevin N. Hainline, George H. Rieke, Christopher N. A. Willmer, Daniel J. Eisenstein, Benjamin D. Johnson, Marcia J. Rieke, Brant Robertson, Sandro Tacchella, Stacey Alberts, William M. Baker, Rachana Bhatawdekar, Kristan Boyett, Andrew J. Bunker, Stephane Charlot, Zuyi Chen, Jacopo Chevallard, Emma Curtis-Lake, A. Lola Danhaive, Christa DeCoursey, Zhiyuan Ji, Jianwei Lyu, Roberto Maiolino, Wiphu Rujopakarn, Lester Sandles, Irene Shivaei, Hannah Übler, Chris Willott, Joris Witstok   +30 more
doaj   +1 more source