Results 111 to 120 of about 5,389 (174)

Halpha Velocity Mapping of Ultraluminous Infrared Galaxies

open access: yes, 1997
We use imaging Fabry-Perot observations to explore the dynamical conditions in four southern ultraluminous (L_IR > 10^12 L_sun) infrared galaxies. These galaxies all show morphological and kinematic features indicative of a major merger, but span a wide range of inferred dynamical ages: the youngest system is just past the first encounter, while the
Mihos, Chris, Bothun, Greg
openaire   +2 more sources

Implication of Galaxy-scale Negative Feedback by One of the Most Powerful Multiphase Outflows in a Hyperluminous Infrared Galaxy at Intermediate Redshift

open access: yesThe Astrophysical Journal
Powerful galactic outflows driven by active galactic nuclei (AGNs) are commonly considered as one of the main mechanisms to regulate star formation in massive galaxies.
Xiaoyang Chen   +14 more
doaj   +1 more source

The SUPERCOLD-CGM Survey. II. [C i](1–0) Emission and the Physical Conditions of Cold Gas in Enormous Lyα Nebulae at z ∼ 2

open access: yesThe Astrophysical Journal
We report Atacama Large Millimeter/submillimeter Array and Atacama Compact Array observations of atomic carbon ([C i ](1–0)) and dust continuum in 10 enormous Ly α nebulae hosting ultraluminous Type-I QSOs at z = 2.2–2.5, as part of the Survey of ...
Jianan Li   +15 more
doaj   +1 more source

Local Ultraluminous Infrared Galaxies and Quasars

open access: yes, 2006
This paper reviews the recent results from a comprehensive investigation of the most luminous mergers in the local universe, the ultraluminous infrared galaxies (ULIRGs) and the quasars. First, the frequency of occurrence and importance of black hole driven nuclear activity in ULIRGs are discussed using the latest sets of optical, near-infrared, mid ...
openaire   +2 more sources

Discovery of Powerful Multivelocity Ultrafast Outflows in the Starburst Merger Galaxy IRAS 05189–2524 with XRISM

open access: yesThe Astrophysical Journal Letters
We observed the X-ray-bright ultraluminous infrared galaxy IRAS 05189−2524 with XRISM during its performance verification phase. The unprecedented energy resolution of the onboard X-ray microcalorimeter revealed complex spectral features at ∼7–9 keV ...
Hirofumi Noda   +19 more
doaj   +1 more source

A catalog to unite them all: REGALADE, a revised galaxy compilation for the advanced detector era

open access: yesAstronomy & Astrophysics
Context. Many applications in transient science, gravitational wave follow-up, and galaxy population studies require all-sky galaxy catalogs with reliable distances, extents, and stellar masses.
Tranin Hugo   +12 more
doaj   +1 more source

Evidence of a Forming Nucleus in the Fourcade–Figueroa Galaxy

open access: yesThe Astrophysical Journal
We analyze data from the IRAS, Wide-field Infrared Survey Explorer, and Planck satellites, revealing an unresolved dust condensation at the center of the Fourcade–Figueroa galaxy (ESO270-G017), which may correspond to a forming nucleus.
H. Dottori, R. J. Díaz
doaj   +1 more source

Spitzer Mid-Infrared Imaging of Nearby Ultraluminous Infrared Galaxies

open access: yes, 2005
We have observed 14 nearby (z<0.16) Ultraluminous Infrared Galaxies (ULIRGs) with Spitzer at 3.6-24 microns. The underlying host galaxies are well-detected, in addition to the luminous nuclear cores. While the spatial resolution of Spitzer is poor, the great sensitivity of the data reveals the underlying galaxy merger remnant, and provides the first
Surace, J. A.   +6 more
openaire   +2 more sources

Suzaku Observations of Local Ultraluminous Infrared Galaxies

open access: yes, 2008
37 pages including 4 tables and 10 figures. Accepted for publication in ApJ.
Teng, Stacy H.   +9 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy