Search Results - "Tyson, J Anthony"
-
1
Constraints on Cosmology and Baryonic Feedback with the Deep Lens Survey Using Galaxy-Galaxy and Galaxy-Mass Power Spectra
Published in The Astrophysical journal (10-01-2019)“…We present cosmological parameter measurements from the Deep Lens Survey (DLS) using galaxy-mass and galaxy-galaxy power spectra in the multipole range =…”
Get full text
Journal Article -
2
Satellite Optical Brightness
Published in The Astronomical journal (01-08-2023)“…The apparent brightness of satellites is calculated as a function of satellite position as seen by a ground-based observer in darkness. Both direct…”
Get full text
Journal Article -
3
COSMIC SHEAR RESULTS FROM THE DEEP LENS SURVEY. II. FULL COSMOLOGICAL PARAMETER CONSTRAINTS FROM TOMOGRAPHY
Published in The Astrophysical journal (20-06-2016)“…ABSTRACT We present a tomographic cosmic shear study from the Deep Lens Survey (DLS), which, providing a limiting magnitude ( ), is designed as a precursor…”
Get full text
Journal Article -
4
THE ELLIPTICITY DISTRIBUTION OF AMBIGUOUSLY BLENDED OBJECTS
Published in The Astrophysical journal (01-01-2016)“…ABSTRACT Using overlapping fields with space-based Hubble Space Telescope and ground-based Subaru Telescope imaging we identify a population of blended…”
Get full text
Journal Article -
5
Expected Impact of Glints from Space Debris in the LSST
Published in Astrophysical journal. Letters (01-05-2024)“…We examine the simple model put forth in a recent note by Loeb regarding the brightness of space debris in the size range of 1–10 cm and their impact on the…”
Get full text
Journal Article -
6
Toward Precision LSST Weak-Lensing Measurement. I. Impacts of Atmospheric Turbulence and Optical Aberration
Published in Publications of the Astronomical Society of the Pacific (01-05-2011)“…The weak-lensing science of the Large Synoptic Survey Telescope (LSST) project drives the need to carefully model and separate the instrumental artifacts from…”
Get full text
Journal Article -
7
Characterizing and Propagating Modeling Uncertainties in Photometrically Derived Redshift Distributions
Published in The Astrophysical journal (10-06-2011)“…The uncertainty in the redshift distributions of galaxies has a significant potential impact on the cosmological parameter values inferred from multi-band…”
Get full text
Journal Article -
8
Dark Matter Structures in the Deep Lens Survey
Published in The Astrophysical journal (10-09-2009)“…We present a regularized maximum likelihood weak-lensing reconstruction of the Deep Lens Survey F2 field (4 deg2). High signal-to-noise ratio peaks in our…”
Get full text
Journal Article -
9
Detection of weak gravitational lensing distortions of distant galaxies by cosmic dark matter at large scales
Published in Nature (London) (11-05-2000)“…Most of the matter in the Universe is not luminous, and can be observed only through its gravitational influence on the appearance of luminous matter. Weak…”
Get full text
Journal Article -
10
Sky subtraction in an era of low surface brightness astronomy
Published in Monthly notices of the Royal Astronomical Society (07-02-2023)“…ABSTRACT The Vera C. Rubin Observatory Wide-Fast Deep sky survey will reach unprecedented surface brightness depths over tens of thousands of square degrees…”
Get full text
Journal Article -
11
Shear-selected Clusters from the Deep Lens Survey. III. Masses from Weak Lensing
Published in The Astrophysical journal (2009)“…We present weak lensing mass estimates of seven shear-selected galaxy cluster candidates from the deep lens survey. The clusters were previously identified as…”
Get full text
Journal Article -
12
The impact of tomographic redshift bin width errors on cosmological probes
Published in Monthly notices of the Royal Astronomical Society (04-02-2022)“…Systematic errors in the galaxy redshift distribution n(z) can propagate to systematic errors in the derived cosmology. We characterize how the degenerate…”
Get full text
Journal Article -
13
Estimating Sky Level
Published in Publications of the Astronomical Society of the Pacific (01-08-2018)“…We develop an improved sky background estimator which employs optimal filters for both spatial and pixel intensity distributions. It incorporates growth of…”
Get full text
Journal Article -
14
Galaxy blending effects in deep imaging cosmic shear probes of cosmology
Published in Monthly notices of the Royal Astronomical Society (13-07-2022)“…ABSTRACT Upcoming deep imaging surveys such as the Vera C. Rubin Observatory Legacy Survey of Space and Time will be confronted with challenges that come with…”
Get full text
Journal Article -
15
Deep lensing with a twist: E and B modes in a field with multiple lenses
Published in Monthly notices of the Royal Astronomical Society (01-01-2019)Get full text
Journal Article -
16
Optimizing LSST observing strategy for weak lensing systematics
Published in Monthly notices of the Royal Astronomical Society (01-11-2020)“…ABSTRACT The Legacy Survey of Space and Time (LSST) survey will provide unprecedented statistical power for measurements of dark energy. Consequently,…”
Get full text
Journal Article -
17
Spectroscopic needs for imaging dark energy experiments
Published in Astroparticle physics (15-03-2015)“…Ongoing and near-future imaging-based dark energy experiments are critically dependent upon photometric redshifts (a.k.a. photo-z’s): i.e., estimates of the…”
Get full text
Journal Article -
18
Distance, Growth Factor, and Dark Energy Constraints from Photometric Baryon Acoustic Oscillation and Weak Lensing Measurements
Published in The Astrophysical journal (01-01-2009)“…Baryon acoustic oscillations (BAOs) and weak lensing (WL) are complementary probes of cosmology. We explore the distance and growth factor measurements from…”
Get full text
Journal Article -
19
Dark Matter in the Galaxy Cluster CL J1226+3332 at z = 0.89
Published in The Astrophysical journal (01-02-2009)“…We present a weak-lensing analysis of the galaxy cluster CL J1226+3332 at z 0.89 using Hubble Space Telescope Advanced Camera for Surveys images. The cluster…”
Get full text
Journal Article -
20
Gravity tested on cosmic scales
Published in Nature (London) (11-03-2010)“…Einstein's theory of general relativity has been tested — and confirmed — on scales far beyond those of our Solar System. But the results don't exclude all…”
Get full text
Journal Article