Results 101 to 110 of about 36,025 (222)

The temperatures of dust-enshrouded AGNs [PDF]

, 2000
A high density of massive dark objects (MDOs), probably supermassive black holes, in the centres of nearby galaxies has been inferred from recent observations.
Blain, A. W., Trentham, Neil
core   +2 more sources

Recent Star Formation in Very Luminous Infrared Galaxies [PDF]

, 2001
Among star forming galaxies, a spectral combination of a strong Hdelta line in absorption and a moderate [OII] emission has been suggested to be a useful method to identify dusty starburst galaxies at any redshift, on the basis of optical data alone.
Bressan, A., Poggianti, B., Franceschini, A.   +2 more
openaire   +2 more sources

Obscured AGN at z < 1.5: X-Ray to Far-infrared SEDs and Host Galaxy Morphologies in the GOODS Fields

The Astrophysical Journal
We present an analysis of spectral energy distributions (SEDs), galaxy light profiles, and visual morphological classifications for 194 X-ray luminous active galactic nuclei (AGN) (intrinsic absorption-corrected $\mathrm{log}({L}_{{\rm{X}},0.5-7\,{\rm ...
William W.H. Jarvis, Connor Auge, David Sanders, Xuheng Ding, Jeana Kim-Bolt, C. Megan Urry, Eric Hooper, Alessandro Peca, Aritra Ghosh, Chuan Tian, Tonima T. Ananna, Md Mahmudunnobe   +11 more
doaj   +1 more source

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

A bias in optical observations of high redshift luminous infrared galaxies

, 2003
We present evidence for the dramatically different morphology between the rest frame UV and 7micron mid-IR emission of VV114 and Arp299, two nearby (z~0) violently interacting infrared luminous galaxies (LIRGs).
Abraham R. G., Arp H. A., E. Le Floc'h, Glazebrook K., I. F. Mirabel, Laurent O., Mirabel I. F., Rieke M. J., V. Charmandaris   +8 more
core   +3 more sources

Linking the X-ray and infrared properties of star-forming galaxies at z < 1.5 [PDF]

, 2014
We present the most complete study to date of the X-ray emission from star formation in high-redshift (median z = 0.7; z −3 in both hard and soft X-ray bands.
Bock, J, Bonzini, M, Buat, V, Farrah, D, Franceschini, A, Georgakakis, A, Ibar, E, Lutz, D, Magdis, G, Magnelli, B, Oliver, S J, Page, M J, Pannella, M, Paolillo, M, Rosario, D, Roseboom, I G, Symeonidis, M, Vaccari, M, Villforth, C   +18 more
core   +7 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

Infrared emission from z ∼ 6.5 quasar host galaxies: a direct estimate of dust physical properties

Astronomy & Astrophysics
Quasars at the dawn of cosmic time (z > 6) are fundamental probes for investigating the early coevolution of supermassive black holes and their host galaxy.
Costa M., Decarli R., Pozzi F., Cox P., Meyer R. A., Pensabene A., Venemans B. P., Walter F., Xu F.   +8 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
Pereira-Santaella, Miguel, Alonso-Herrero, A., Rieke, George H., Colina, Luis   +3 more
openaire   +3 more sources

Measuring the Interstellar Medium Content of Nearby, Luminous, Type 1 and Type 2 QSOs through CO and [C ii]

The Astrophysical Journal
We present observations of CO(1–0) and CO(2–1) lines from the Institut de radioastronomie millimétrique 30 m telescope toward 20 nearby, optically luminous type 2 quasars (QSO2s) and observations of the [C ii ] 158 μ m line from the Stratospheric ...
Yuanze Luo, A. O. Petric, R. M. J. Janssen, D. Fadda, N. Flagey, A. Omont, A. M. Jacob, K. Rowlands, K. Alatalo, N. Billot, T. Heckman, B. Husemann, D. Kakkad, M. Lacy, J. Marshall, R. Minchin, R. Minsley, N. Nesvadba, J. A. Otter, P. Patil, T. Urrutia   +20 more
doaj   +1 more source