Results 61 to 70 of about 646 (166)
Searching for strong lensing by late-type galaxies in UNIONS
Astronomy & AstrophysicsRecent wide-field galaxy surveys have led to an explosion in the number of galaxy-scale strong gravitational lens candidates. However, the vast majority of them feature massive luminous red galaxies as the main deflectors, with late-type galaxies being ...
Acevedo Barroso J. A. +10 more
doaj +1 more source
Late-type Stars in the Inner Galaxy
, 2004 Asymptotic Giant Branch (AGB) stars are good tracers of the Galactic structure. They are bright in the infrared and can therefore be detected even in the most obscured regions of the Galaxy. Maser emission from their circumstellar envelopes can be detected throughout the Galaxy, and reveals the stellar line-of-sight velocities with an accuracy of a few
openaire +2 more sources
The inner properties of late-type galaxies
, 2003 I review some recent results on the inner properties of disk galaxies, and highlight some issues that require either observational or theoretical clarification and that are important for constructing a consistent picture of the formation of the local disk galaxy population.
openaire +2 more sources
Bulge formation in very late-type galaxies
, 2002 The dynamical evolution of super star clusters (SSCs) moving in the background of a dark matter halo has been investigated as a possible event responsible for the formation of bulges in late-type spirals. The underlying physical processes include sinking of SSCs due to the dynamical friction and stripping of SSCs on their way to the center.
Fu, YanNing, Huang, JieHao, Deng, ZuGan
openaire +2 more sources
Models of Late-type Disk Galaxies: 1-D Versus 2-D
Open Astronomy, 2014 We investigate the effects of stochasticity on the observed galaxy parameters by comparing our stochastic star formation two-dimensional (2-D) galaxy evolution models with the commonly used one-dimensional (1-D) models with smooth star formation. The 2-D
Mineikis T., Vansevičius V.
doaj +1 more source
Uncovering an Excess of X-Ray Point Sources in the Halos of Virgo Late-type Galaxies
The Astrophysical JournalWe present a systematic search for extraplanar X-ray point sources around 19 late-type, highly inclined disk galaxies residing in the Virgo cluster, based on archival Chandra observations reaching a source detection sensitivity of L (0.5–8 keV) ∼ 10 ^38 ...
Zhensong Hu, Meicun Hou, Zhiyuan Li
doaj +1 more source
The Astrophysical Journal LettersWe present measurements of morphological parameters from fitting 53,885 galaxies detected to a magnitude limit of F356W < 28.5 in the CEERS NIRCam imaging with galfit in six broadband filters: F115W, F150W, F200W, F277W, F356W, and F444W.
Elizabeth J. McGrath +45 more
doaj +1 more source
Structural and Morphological Properties of Ultraluminous Infrared Galaxies at 1 < z < 3
Open Astronomy, 2015 Using the Hubble Space Telescope (HST)/Wide Field Camera 3 (WFC3) near-infrared high-resolution imaging from the 3D-HST survey, we analyze the morphology and structure of 502 ultraluminous infrared galaxies (ULIRGs; LIR > 1012L⊙) at 1 < z < 3. Their rest-
Fang Guanwen +3 more
doaj +1 more source
100 Proof: H i Observations of 100 Nearby Dwarf Galaxies with the 100 m Green Bank Telescope
The Astronomical JournalWe describe the results of observations with the 100 m Robert C. Byrd Green Bank Telescope in the H i line of 105 nearby dwarf galaxies, 60 of which were discovered recently in the DESI Legacy Imaging Surveys.
Aleksandra E. Nazarova +6 more
doaj +1 more source
Internal Extinction in the SDSS Late-Type Galaxies
, 2008 We study internal extinction of late-type galaxies in the Sloan Digital Sky Survey. We find that the degree of internal extinction depends on both the concentration index c and K_s-band absolute magnitude M_K. We give simple fitting functions for internal extinction. In particular, we present analytic formulae giving the extinction-corrected magnitudes
Cho, Jungyeon, Park, Changbom
openaire +2 more sources