Results 101 to 110 of about 6,898,231 (288)

Living with Neighbors. V. Better-aligned Spiral+Spiral Galaxy Pairs Show Stronger Star Formation

open access: yesThe Astrophysical Journal
Enhanced star formation (SF) with star-forming neighboring galaxies bolsters the hydrodynamical contributions during paired interactions. Although the relative spin orientation between interacting galaxies can influence this effect, it has not been ...
Woong-Bae G. Zee   +3 more
doaj   +1 more source

A new twist to an old story: HE 0450-2958, and the ULIRG$\to $(optically bright QSO) transition hypothesis

open access: yes, 2008
We report on interferometric imaging of the CO J=1--0 and J=3--2 line emission from the controversial QSO/galaxy pair HE 0450--2958. {\it The detected CO J=1--0 line emission is found associated with the disturbed companion galaxy not the luminous QSO ...
Alloin D.   +8 more
core   +1 more source

Sloshing in High‐Speed Galaxy Interactions [PDF]

open access: yesThe Astrophysical Journal, 2000
20 text pages, 3 tables, 24 figures. A gzipped postscripped version with higher resolution figures can be downloaded from http://butch.umephy.maine.edu/kickers/Research/Sloshing/ .
Zeltwanger, Thomas   +2 more
openaire   +2 more sources

A mid-IR study of Hickson compact groups - I. Probing the effects of environment in galaxy interactions [PDF]

open access: yes, 2010
Hickson compact groups (HCGs) are among the densest galaxy environments of the local universe. To examine the effects of the environment on the infrared properties of these systems, we present an analysis of Spitzer and ISO mid-infrared imaging, as well ...
T. Bitsakis   +12 more
semanticscholar   +1 more source

Repeating Nuclear Transients From Repeating Partial Tidal Disruption Events

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT Extragalactic nuclear transients that exhibit repeating outbursts can be modeled as the repeated dynamical interaction between bound stars and supermassive black holes (SMBHs). A subset of these transients, with recurrence timescales of months‐to‐years, have been explained as accretion flares from the repeated tidal stripping of a star by an ...
Ananya Bandopadhyay   +4 more
wiley   +1 more source

Discovery of a transparent sightline at {\rho} < 20 kpc from an interacting pair of galaxies

open access: yes, 2013
We report the discovery of a transparent sightline at projected distances of {\rho} < 20 kpc to an interacting pair of mature galaxies at z = 0.12. The sightline of the UV-bright quasar PG1522+101 at z = 1.328 passes at {\rho} = 11.5 kpc from the higher ...
Chen, Hsiao-Wen   +5 more
core   +1 more source

THE METALLICITY EVOLUTION OF INTERACTING GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2012
Nuclear inflows of metal-poor interstellar gas triggered by galaxy interactions can account for the systematically lower central oxygen abundances observed in local interacting galaxies. Here, we investigate the metallicity evolution of a large set of simulations of colliding galaxies.
Torrey, Paul   +3 more
openaire   +3 more sources

Massive star formation in Wolf-Rayet galaxies. V: Star formation rates, masses and the importance of galaxy interactions [PDF]

open access: yes, 2010
Aims. We performed a comprehensive analysis of a sample of 20 starburst galaxies that show a substantial population of very young massive stars, most of them classified as Wolf-Rayet galaxies. Methods.
Á. López-Sánchez
semanticscholar   +1 more source

Quantifying the Impact of Relativistic Precession on Tidal Disruption Event Light Curves

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT The tidal field of a black hole can turn a star into a gas stream whose orbit can precess, especially if the a black hole is rapidly spinning. In this work, we investigate the impact of precession on the light curves of tidal disruption events (TDE).
Diego Calderón   +4 more
wiley   +1 more source

FAST Reveals the Extended H i Halo and Accretion Signatures of NGC 2683

open access: yesThe Astrophysical Journal
We present the results of our recent H i observations conducted on the edge-on galaxy NGC 2683 using the Five-hundred-meter Aperture Spherical radio Telescope (FAST).
Qian Jiao   +7 more
doaj   +1 more source

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