Search Results - "Masters, Karen"
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Spirals in Galaxies
Published in Annual review of astronomy and astrophysics (18-08-2022)“…Spirals in galaxies have long been thought to be caused by gravitational instability in the stellar component of the disk, but discerning the precise mechanism…”
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Galaxy Zoo DECaLS: Detailed visual morphology measurements from volunteers and deep learning for 314 000 galaxies
Published in Monthly notices of the Royal Astronomical Society (01-01-2022)“…ABSTRACT We present Galaxy Zoo DECaLS: detailed visual morphological classifications for Dark Energy Camera Legacy Survey images of galaxies within the SDSS…”
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The green valley is a red herring: Galaxy Zoo reveals two evolutionary pathways towards quenching of star formation in early- and late-type galaxies
Published in Monthly notices of the Royal Astronomical Society (01-05-2014)“…We use SDSS+GALEX+Galaxy Zoo data to study the quenching of star formation in low-redshift galaxies. We show that the green valley between the blue cloud of…”
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A precise extragalactic test of General Relativity
Published in Science (American Association for the Advancement of Science) (22-06-2018)“…Einstein's theory of gravity, General Relativity, has been precisely tested on Solar System scales, but the long-range nature of gravity is still poorly…”
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SDSS-IV MaNGA: evidence of the importance of AGN feedback in low-mass galaxies
Published in Monthly notices of the Royal Astronomical Society (01-05-2018)“…Abstract We present new evidence for AGN feedback in a subset of 69 quenched low-mass galaxies (M⋆ ≲ 5 × 109 M⊙, Mr > −19) selected from the first 2 yr of the…”
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Galaxy Zoo 2: detailed morphological classifications for 304 122 galaxies from the Sloan Digital Sky Survey
Published in Monthly notices of the Royal Astronomical Society (11-11-2013)“…We present the data release for Galaxy Zoo 2 (GZ2), a citizen science project with more than 16 million morphological classifications of 304 122 galaxies drawn…”
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Local gravity versus local velocity: solutions for β and non-linear bias
Published in Monthly notices of the Royal Astronomical Society (01-06-2011)“…We perform a reconstruction of the cosmological large-scale flows in the nearby Universe using two complementary observational sets. The first, the SFI++…”
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Galaxy Zoo: bar lengths in local disc galaxies
Published in Monthly notices of the Royal Astronomical Society (01-08-2011)“…We present an analysis of bar length measurements of 3150 local galaxies in a volume-limited sample of low-redshift (z < 0.06) disc galaxies. Barred galaxies…”
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Galaxy Zoo: comparing the demographics of spiral arm number and a new method for correcting redshift bias
Published in Monthly notices of the Royal Astronomical Society (01-10-2016)“…The majority of galaxies in the local Universe exhibit spiral structure with a variety of forms. Many galaxies possess two prominent spiral arms, some have…”
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SDSS IV MaNGA – spatially resolved diagnostic diagrams: a proof that many galaxies are LIERs
Published in Monthly notices of the Royal Astronomical Society (21-09-2016)“…We study the spatially resolved excitation properties of the ionized gas in a sample of 646 galaxies using integral field spectroscopy data from the Sloan…”
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Galaxy Zoo: secular evolution of barred galaxies from structural decomposition of multiband images
Published in Monthly notices of the Royal Astronomical Society (01-02-2018)“…AbstractWe present the results of two-component (disc+bar) and three-component (disc+bar+bulge) multiwavelength 2D photometric decompositions of barred…”
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H i-MaNGA: tracing the physics of the neutral and ionized ISM with the second data release
Published in Monthly notices of the Royal Astronomical Society (01-05-2021)“…ABSTRACT We present the second data release for the H i-MaNGA programme of H i follow-up observations for the SDSS-IV MaNGA survey. This release contains…”
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Galaxy zoo builder: Morphological dependence of spiral galaxy pitch angle
Published in Monthly notices of the Royal Astronomical Society (01-07-2021)“…ABSTRACT Spiral structure is ubiquitous in the Universe, and the pitch angle of arms in spiral galaxies provide an important observable in efforts to…”
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Galaxy zoo: stronger bars facilitate quenching in star-forming galaxies
Published in Monthly notices of the Royal Astronomical Society (01-11-2021)“…ABSTRACT We have used Galaxy Zoo DECaLS (GZD) to study strong and weak bars in disc galaxies. Out of the 314 000 galaxies in GZD, we created a volume-limited…”
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Galaxy Zoo: kinematics of strongly and weakly barred galaxies
Published in Monthly notices of the Royal Astronomical Society (01-05-2023)“…ABSTRACT We study the bar pattern speeds and corotation radii of 225 barred galaxies, using integral field unit data from MaNGA and the Tremaine–Weinberg…”
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A comparison of the baryonic Tully–Fisher relation in MaNGA and IllustrisTNG
Published in Monthly notices of the Royal Astronomical Society (15-02-2023)“…ABSTRACT We compare an observed baryonic Tully–Fisher relation (BTFR) from the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) and HI-MaNGA surveys…”
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The H i morphology and stellar properties of strongly barred galaxies: support for bar quenching in massive spirals
Published in Monthly notices of the Royal Astronomical Society (11-03-2020)“…ABSTRACT Galactic bars are able to affect the evolution of galaxies by redistributing their gas, possibly contributing to the cessation of star formation…”
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Stellar masses of SDSS-III/BOSS galaxies at z ∼ 0.5 and constraints to galaxy formation models
Published in Monthly notices of the Royal Astronomical Society (11-11-2013)“…We calculate stellar masses for ∼400 000 massive luminous galaxies at redshift ∼0.2-0.7 using the first two years of data from the Baryon Oscillation…”
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Galactic conformity in both star formation and morphological properties
Published in Monthly notices of the Royal Astronomical Society (01-02-2020)“…ABSTRACT We investigate one-halo galactic conformity (the tendency for satellite galaxies to mirror the properties of their central) in both star formation and…”
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Suppressing star formation in quiescent galaxies with supermassive black hole winds
Published in Nature (London) (26-05-2016)“…In order for quiescent galaxies to maintain their low-to-non-existent star formation, there must be a mechanism to remove or heat gas that would otherwise cool…”
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