Results 61 to 70 of about 11,976,045 (293)

Galaxy and Mass Assembly (GAMA): variation in galaxy structure across the green valley [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
Using a sample of 472 local Universe (z < 0.06) galaxies in the stellar mass range 10.25 < logM*/M⊙ < 10.75, we explore the variation in galaxy structure as a function of morphology and galaxy colour. Our sample of galaxies is subdivided into red, green, and blue colour groups and into elliptical and non-elliptical (disk-type) morphologies ...
Kelvin, Lee S   +32 more
openaire   +10 more sources

MegaMorph – multiwavelength measurement of galaxy structure. Sérsic profile fits to galaxies near and far [PDF]

open access: yes, 2013
We demonstrate a new multiwavelength technique for two-dimensional parametric modelling of galaxy surface-brightness profiles, which we have incorporated into the widely used software galfit.
M. Vika   +5 more
semanticscholar   +1 more source

Machine Learning‐Augmented Loop‐Mediated Isothermal Amplification‐Enabled Point‐of‐Care for Mpox‐Specific Detection

open access: yesAdvanced Intelligent Systems, EarlyView.
A low‐cost, portable point‐of‐care platform for rapid Mpox detection using loop‐mediated isothermal amplification is reported. The device integrates fluorescence readout and mobile monitoring. A machine‐learning model analyzes temperature data and correlates thermal changes with DNA concentration, enabling sensitive and reliable molecular diagnosis in ...
Nazente Atceken   +4 more
wiley   +1 more source

Structure of the Galaxy [PDF]

open access: yesSymposium - International Astronomical Union, 1964
The title which the organizers of the Symposium have suggested for this introductory report covers an enormous domain. Even if one limits oneself, as I intend to do, to the large-scale structure, it is impossible to summarize this adequately in one communication.
openaire   +1 more source

SDSS-IV MaNGA : stellar angular momentum of about 2300 galaxies: unveiling the bimodality of massive galaxy properties [PDF]

open access: yes, 2018
We measure λRe, a proxy for galaxy specific stellar angular momentum within one effective radius, and the ellipticity, e, for about 2300 galaxies of all morphological types observed with integral field spectroscopy as part of the MaNGA survey, the ...
M. Graham   +16 more
semanticscholar   +1 more source

Discovery and Initial Investigation of a New Low Surface Brightness Planetary Nebula Candidate at High Galactic Latitude

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik   +12 more
wiley   +1 more source

The Stellar Structures Around Disk Galaxies [PDF]

open access: yes, 2008
To appear in the proceedings for the IAUS 241 'Stellar Populations as Building Blocks of Galaxies' held in La Palma, Spain, December 10-16 ...
Igor Drozdovsky   +9 more
openaire   +2 more sources

The VPOS: a vast polar structure of satellite galaxies, globular clusters and streams around the Milky Way [PDF]

open access: yes, 2012
It has been known for a long time that the satellite galaxies of the Milky Way (MW) show a significant amount of phase-space correlation, they are distributed in a highly inclined Disc of Satellites (DoS). We have extended the previous studies on the DoS
M. Pawlowski   +2 more
semanticscholar   +1 more source

The THESEUS Space Mission and the Infrared Telescope Calibration Unit

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT The Transient High‐Energy Sky and Early Universe Surveyor (THESEUS) is an ESA M7 mission concept currently in Phase A, designed to exploit gamma‐ray bursts to probe the early Universe while advancing multi‐messenger and time‐domain astrophysics. To achieve its ambitious goals, THESEUS will combine wide‐band x‐ray and gamma‐ray monitors with an
András Péter Joó   +9 more
wiley   +1 more source

Unusual Gas Structure in an Otherwise Normal Spiral Galaxy Hosting GRB 171205A/SN 2017iuk [PDF]

open access: gold, 2022
M. Arabsalmani   +6 more
openalex   +1 more source

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