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相关论文: A Flaring AGN In a ULIRG candidate in Stripe 82

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We present a comprehensive study of Ultraluminous Infrared Galaxies (ULIRGs), leveraging data from the IRAS Faint Source Catalogue (FSC) and the spectroscopic catalog in the Sloan Digital Sky Survey (SDSS) DR16. Our meticulous…

星系天体物理 · 物理学 2024-07-09 Shaohua Zhang , Zhijian Luo , Xiheng Shi , Chenggan Shu , Hubing Xiao , Hongyan Zhou

We use mid-infrared variability in galaxies to search for active galactic nuclei (AGN) in the local universe. We use a sample of 10,220 galaxies from the Mapping Nearby Galaxies at APO (MaNGA) survey, part of the Sloan Digital Sky Survey…

星系天体物理 · 物理学 2024-12-09 Aashay Pai , Michael R. Blanton , John Moustakas

We present the results of our multifrequency observations for 10 ultraluminous infrared galaxies (ULIRGs) made by the Karl G. Jansky Very Large Array at 1.4, 5.5, 9.0, and 14.0 GHz. Our sample is selected from ULIRGs whose active galactic…

星系天体物理 · 物理学 2021-05-12 Takayuki J. Hayashi , Yoshiaki Hagiwara , Masatoshi Imanishi

We present integral field spectroscopy observations, covering the [O III]4959,5007 emission-line doublet of eight high-redshift (z=1.4-3.4) ultra-luminous infrared galaxies (ULIRGs) that host Active Galactic Nuclei (AGN) activity, including…

The aim of this work is to characterize physical properties of Ultra Luminous Infrared Galaxies (ULIRGs) and Luminous Infrared Galaxies (LIRGs) detected in the far-infrared (FIR) 90um band in the AKARI Deep Field-South (ADF-S) survey. In…

星系天体物理 · 物理学 2017-01-25 K. Małek , M. Bankowicz , A. Pollo , V. Buat , T. T. Takeuchi , D. Burgarella , T. Goto , M. Malkan , H. Matsuhara

(Abridged) We examine the power source of 41 local Ultraluminous Infrared Galaxies using archival infrared and optical photometry. We fit the observed Spectral Energy Distributions (SEDs) with starburst and AGN components; each component…

天体物理学 · 物理学 2008-11-26 D. Farrah , J. Afonso , A. Efstathiou , M. Rowan-Robinson , M. Fox , D. Clements

We present a 5-8 micron analysis of the Spitzer-IRS spectra of 71 ultraluminous infrared galaxies (ULIRGs) with redshift z < 0.15, devoted to the study of the role of active galactic nuclei (AGN) and starbursts (SB) as the power source of…

宇宙学与河外天体物理 · 物理学 2015-05-13 E. Nardini , G. Risaliti , M. Salvati , E. Sani , Y. Watabe , A. Marconi , R. Maiolino

We aim to determine the intrinsic far-Infrared (far-IR) emission of X-ray-luminous quasars over cosmic time. Using a 16 deg^2 region of the Stripe 82 field surveyed by XMM-Newton and Herschel Space Observatory, we identify 2905 X-ray…

We have assembled the largest sample of ultra hard X-ray selected (14-195 keV) AGN with host galaxy optical data to date, with 185 nearby (z<0.05), moderate luminosity AGN from the Swift BAT sample. The BAT AGN host galaxies have…

宇宙学与河外天体物理 · 物理学 2011-09-21 Michael Koss , Richard Mushotzky , Sylvain Veilleux , Lisa M. Winter , Wayne Baumgartner , Jack Tueller , Neil Gehrels , Lynne Valencic

This paper reports the latest results from a near-infrared search for hidden broad-line regions (BLRs: FWHM >~ 2,000 km/s) in ultraluminous infrared galaxies (ULIGs). The new sample contains thirty-nine ULIGs from the 1-Jy sample selected…

天体物理学 · 物理学 2009-08-21 S. Veilleux , D. B. Sanders , D. -C. Kim

We employ UV and optical photometry, from the GALEX and SDSS surveys respectively, to study the star formation histories of 561 luminous infrared galaxies (LIRGs) in the nearby Universe. A small fraction (~4%) of these galaxies have…

天体物理学 · 物理学 2009-11-13 Sugata Kaviraj

We study the properties of 975 active galactic nuclei (AGN) selected by variability in the Pan-STARRS1 Medium-Deep Survey. Using complementary multi wavelength data from the ultraviolet to the far-infrared, we use SED fitting to determine…

星系天体物理 · 物理学 2016-07-27 S. Heinis , S. Gezari , S. Kumar , W. S. Burgett , H. Flewelling , M. E. Huber , N. Kaiser , R. J. Wainscoat , C. Waters

We visually and quantitatively determine the host galaxy morphologies of 94 intermediate redshift (0.2 < z < 1.2) active galactic nuclei (AGN), selected using Chandra X-ray and Spitzer mid-infrared data in the Extended Groth Strip. Using…

In this work, we use 8 years of deep near-infrared imaging to select and study a new set of 601 active galaxies identified through long-term near-infrared (NIR) variability in the UKIDSS Ultra Deep Survey (UDS). These objects are compared…

星系天体物理 · 物理学 2024-05-24 K. Green , E. Elmer , D. T. Maltby , O. Almaini , M. Merrifield , W. G. Hartley

Some high-z active galactic nuclei (AGNs) are found to reside in extreme star-forming galaxies, such as hyper-luminous infrared galaxies (HyLIRGs), with AGN-removed $L_{\rm{IR}}$ of $>10^{13} L_{\rm{\odot}}$. In this paper, we report NOEMA…

We present a large robust sample of 1503 reliable and unconfused 70microm selected sources from the multiwavelength data set of the Cosmic Evolution Survey (COSMOS). Using the Spitzer IRAC and MIPS photometry, we estimate the total infrared…

We discuss a sample of 29 AGN (16 narrow-lined and 13 broad-lined) discovered in a spectroscopic survey of ~1000 star-forming Lyman-break galaxies (LBGs) at z~3. Reaching apparent magnitudes of R_{AB}=25.5, the sample includes broad-lined…

天体物理学 · 物理学 2009-11-07 C. Steidel , M. Hunt , A. Shapley , K. Adelberger , M. Pettini , M. Dickinson , M. Giavalisco

Detecting active black holes in dwarf galaxies has proven to be a challenge due to their small size and weak electromagnetic signatures. Mid-infrared variability has emerged as a promising tool that can be used to detect active low-mass…

星系天体物理 · 物理学 2024-08-02 Archana Aravindan , Gabriela Canalizo , Nathan Secrest , Shobita Satyapal , Thomas Bohn

We present low resolution near-infrared spectroscopy of an unbiased sample of 24 ultraluminous infrared galaxies (ULIRGs), selected from samples previously observed spectroscopically in the mid-infrared with the Infrared Space Observatory…

天体物理学 · 物理学 2009-11-11 H. Dannerbauer , D. Rigopoulou , D. Lutz , R. Genzel , E. Sturm , A. F. M. Moorwood

Increasing observational evidence supports a picture for a close link among AGN phenomenum, star-formation processes and galaxy formation. Since the physical phenomena related to the onset of both AGN and star formation are very likely…

天体物理学 · 物理学 2007-05-23 Paola Andreani
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