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10 papers · 2 filters
Intragroup and Galaxy-Linked Diffuse X-ray Emission in Hickson Compact Groups
Tyler D. Desjardins, Sarah C. Gallagher, Panayiotis Tzanavaris +9
Isolated compact groups of galaxies (CGs) present a range of dynamical states, group velocity dispersions, and galaxy morphologies with which to study galaxy evolution, particularl…
The Imprint of The Extragalactic Background Light in the Gamma-Ray Spectra of Blazars
LAT Collaboration
The light emitted by stars and accreting compact objects through the history of the Universe is encoded in the intensity of the extragalactic background light (EBL). Knowledge of t…
The high-redshift (z>3) AGN population in the 4 Ms Chandra Deep Field South
F. Vito, C. Vignali, R. Gilli +10
We present results from a spectral analysis of a sample of high-redshift (z>3) X-ray selected AGN in the 4 Ms Chandra Deep Field South (CDF-S), the deepest X-ray survey to date. Th…
Submillimeter Follow-up of WISE-Selected Hyperluminous Galaxies
Jingwen Wu, Chao-Wei Tsai, Jack Sayers +20
We have used the Caltech Submillimeter Observatory (CSO) to follow-up a sample of WISE-selected, hyperluminous galaxies, so called W1W2-dropout galaxies. This is a rare (~ 1000 all…
The First Hyper-Luminous Infrared Galaxy Discovered by WISE
Peter R. M. Eisenhardt, Jingwen Wu, Chao-Wei Tsai +21
We report the discovery by the Wide-field Infrared Survey Explorer of the z = 2.452 source WISE J181417.29+341224.9, the first hyperluminous source found in the WISE survey. WISE 1…
A 200-s Quasi-Periodicity Following the Tidal Disruption of a Star by a Dormant Black Hole
R. C. Reis, J. M. Miller, M. T. Reynolds +4
Supermassive black holes (SMBHs; $M\gtrsim10^5\msun$) are known to exist at the centre of most galaxies with sufficient stellar mass. In the local Universe, it is possible to infer…