Results 41 to 50 of about 480,960 (375)
The Astrophysical Journal, 2023 The host galaxies of tidal disruption events (TDEs) have been shown to possess peculiar properties, including high central light concentrations, unusual star formation histories, and “green” colors.
Erica Hammerstein +8 more
doaj +1 more source
Halo Spin from Primordial Inner Motions
The Open Journal of Astrophysics, 2020 The standard explanation for galaxy spin starts with the tidal-torque theory (TTT), in which an ellipsoidal dark-matter protohalo, which comes to host the galaxy, is torqued up by the tidal gravitational field around it.
Mark Neyrinck +4 more
doaj +1 more source
The Nearby Optical Galaxy Sample: The Local Galaxy Luminosity Function [PDF]
, 1999 In this paper we derive the galaxy luminosity function from the Nearby Optical Galaxy (NOG) sample, which is a nearly complete, magnitude-limited ...
Barbara Costantini +38 more
core +3 more sources
Searching for modified gravity: scale and redshift dependent constraints from galaxy peculiar velocities [PDF]
, 2015 We present measurements of both scale- and time-dependent deviations from the standard gravitational field equations. These late-time modifications are introduced separately for relativistic and non-relativistic particles, by way of the parameters G(k, z)
Andrew Johnson +5 more
semanticscholar +1 more source
ATCA HI observations of the peculiar galaxy IC 2554 [PDF]
, 2002 ATCA H I and radio continuum observations of the peculiar southern galaxy IC 2554 and its surroundings reveal typical signatures of an interacting galaxy group. We detected a large H I cloud between IC 2554 and the elliptical galaxy NGC 3136B.
B. Koribalski +3 more
semanticscholar +1 more source
Massive first star binaries as new tools for Galactic archaeology [PDF]
EPJ Web of Conferences, 2022 Binary systems are important probes of the origin of stars with peculiar chemical features through the interactions between two stars. We have studied the evolution of a metal-free massive binary after the collision of the supernova ejecta with a low ...
Suda Takuma +4 more
doaj +1 more source
The Molecule-rich Tail of the Peculiar Galaxy NGC 2782 (Arp 215) [PDF]
, 1998 We present the first detection of a large quantity of molecular gas in the extended tail of an interacting galaxy. Using the NRAO 12 m telescope, we have detected CO (1–0) at five locations in the eastern tail of the peculiar starburst galaxy NGC 2782 ...
Beverly J. Smith +3 more
semanticscholar +1 more source
ALMA Resolves the First Strongly Lensed Optical/Near-IR-dark Galaxy
The Astrophysical Journal, 2023 We present high-resolution (≲0.″1) Atacama Large Millimeter/submillimeter Array observations of the strongly lensed galaxy HATLASJ113526.2-01460 at redshift z ∼ 3.1, discovered in the GAMA 12th field of the Herschel-ATLAS survey.
Marika Giulietti +8 more
doaj +1 more source
Peculiar velocities of galaxies and clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 We present a simple model for the shape of the distribution function of galaxy peculiar velocities. We show how both nonlinear and linear theory terms combine to produce a distribution which has an approximately Gaussian core with exponential wings. The model is easily extended to study how the statistic depends on the type of particle used to trace ...
Sheth R. K., DIAFERIO, Antonaldo
openaire +2 more sources
A long-duration gamma-ray burst with a peculiar origin [PDF]
Nature, 2022 It is generally believed that long-duration gamma-ray bursts (GRBs) are associated with massive star core collapse1, whereas short-duration GRBs are associated with mergers of compact star binaries2.
J. Yang +9 more
semanticscholar +1 more source