Results 101 to 110 of about 35,402 (267)

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

The Magellan M2FS Spectroscopic Survey of High-redshift Galaxies: The Brightest Lyman-break Galaxies at z ∼ 6

The Astrophysical Journal
We present a study of a sample of 45 spectroscopically confirmed, UV luminous galaxies at z ∼ 6. They were selected as bright Lyman-break galaxies (LBGs) using deep multiband optical images in more than 2 deg ^2 of the sky, and subsequently identified ...
Shuqi Fu, Linhua Jiang, Yuanhang Ning, Weiyang Liu, Zhiwei Pan   +4 more
doaj   +1 more source

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

Building on the Archives: Connecting the CN/CO Intensity Ratio with Global Galaxy Properties in Nearby U/LIRGs

The Astrophysical Journal
We use the CN/CO intensity ratio to obtain the dense gas fraction, f _dense , for a sample of 16 ultraluminous and luminous infrared (IR) galaxies and compare f _dense with a suite of global galaxy properties.
Blake Ledger, Christine D. Wilson, Osvald Klimi, Núria Torres-Albà, Toshiki Saito   +4 more
doaj   +1 more source

A Comprehensive Study of Galaxies at z ∼ 9–16 Found in the Early JWST Data: Ultraviolet Luminosity Functions and Cosmic Star Formation History at the Pre-reionization Epoch

The Astrophysical Journal Supplement Series, 2023
We conduct a comprehensive study on dropout galaxy candidates at z ∼ 9–16 using the first 90 arcmin ^2 James Webb Space Telescope (JWST) Near Infrared Camera images taken by the early release observations (ERO) and early release science programs.
Yuichi Harikane, Masami Ouchi, Masamune Oguri, Yoshiaki Ono, Kimihiko Nakajima, Yuki Isobe, Hiroya Umeda, Ken Mawatari, Yechi Zhang   +8 more
doaj   +1 more source

Decomposing Star Formation and Active Galactic Nucleus with Spitzer Mid-Infrared Spectra: Luminosity Functions and Co-Evolution [PDF]

, 2010
We present Spitzer 7-38um spectra for a 24um flux limited sample of galaxies at z~0.7 in the COSMOS field. The detailed high-quality spectra allow us to cleanly separate star formation (SF) and active galactic nucleus (AGN) in individual galaxies.
Armus, Arnouts, Bell, Bennert, Boissier, Brusa, Capak, Caputi, Caputi, Chapman, Chary, D. B. Sanders, D. T. Frayer, Daddi, Daddi, Dai, Dale, Dey, E. Le Floc'h, Elbaz, Elvis, Fadda, Fiore, Fiore, Frayer, Fu, Genzel, H. Aussel, Hai Fu, Hao, Hasinger, Hickox, Hopkins, Hopkins, Hopkins, Houck, Huang, Häring, Ilbert, Ilbert, J. S. Kartaltepe, Jahnke, K. Sheth, Kartaltepe, Lawrence, Le Floc'h, Le Floc'h, Lee, Lilly, Lin Yan, M. Salvato, Mainieri, Markwardt, Martin, N. Z. Scoville, Netzer, Nikutta, Noeske, O. Ilbert, P. Capak, Pope, Pozzi, Pérez-González, Reddy, Richards, Rieke, Rieke, Sacchi, Sajina, Salvato, Sanders, Sanders, Sargent, Saunders, Schinnerer, Scoville, Scoville, Shankar, Silverman, Sirocky, Smith, Stern, Trump, Ueda, Veilleux, Wu, Xu, Y. Taniguchi, Yun, Zheng, Zheng, Zheng   +91 more
core   +2 more sources

GALAXY-WIDE SHOCKS IN LATE-MERGER STAGE LUMINOUS INFRARED GALAXIES [PDF]

The Astrophysical Journal, 2011
We present an integral field spectroscopic study of two nearby Luminous Infrared Galaxies (LIRGs) that exhibit evidence of widespread shock excitation induced by ongoing merger activity, IC 1623 and NGC 3256. We show the importance of carefully separating excitation due to shocks vs.
Lisa J. Kewley, Michael A. Dopita, Michael A. Dopita, Jeffrey A. Rich   +3 more
openaire   +5 more sources

MAMMOTH-Subaru. II. Diverse Populations of Circumgalactic Lyα Nebulae at Cosmic Noon

The Astrophysical Journal Supplement Series
Circumgalactic Ly α nebulae are gaseous halos around galaxies exhibiting luminous extended Ly α emission. This work investigates Ly α nebulae from deep imaging of ∼12 deg ^2 sky, targeted by the MAMMOTH-Subaru survey.
Mingyu Li, Haibin Zhang, Zheng Cai, Yongming Liang, Nobunari Kashikawa, Ke Ma, Xiaohui Fan, J. Xavier Prochaska, Bjorn H. C. Emonts, Xin Wang, Yunjing Wu, Shiwu Zhang, Qiong Li, Sean D. Johnson, Minghao Yue, Fabrizio Arrigoni Battaia, Sebastiano Cantalupo, Joseph F. Hennawi, Satoshi Kikuta, Yuanhang Ning, Masami Ouchi, Rhythm Shimakawa, Ben Wang, Weichen Wang, Zheng Zheng, Zhen-Ya Zheng   +25 more
doaj   +1 more source

The differential magnification of high-redshift ultraluminous infrared galaxies [PDF]

, 1998
A class of extremely luminous high-redshift galaxies has recently been detected in unbiased submillimetre-wave surveys using the Submillimetre Common-User Bolometer Array (SCUBA) camera at the James Clerk Maxwell Telescope.
Blain, Andrew W.
core   +5 more sources

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