Search Results - "Jeltema, T. E"
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Searching for Dark Matter with X-Ray Observations of Local Dwarf Galaxies
Published in The Astrophysical journal (20-10-2008)“…A generic feature of weakly interacting massive particle (WIMP) dark matter models is the emission of photons over a broad energy band resulting from the…”
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Tools for Dissecting Supernova Remnants Observed with Chandra: Methods and Application to the Galactic Remnant W49B
Published in The Astrophysical journal (20-01-2009)“…We introduce methods to quantify the X-ray morphologies of supernova remnants (SNRs) observed with the Chandra X-ray Telescope. These include a power-ratio…”
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Typing Supernova Remnants Using X-Ray Line Emission Morphologies
Published in The Astrophysical journal (20-11-2009)“…We present a new observational method to type the explosions of young supernova remnants (SNRs). By measuring the morphology of the Chandra X-ray line emission…”
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The X-Ray Properties of Moderate-Redshift Galaxy Groups Selected by Association with Gravitational Lenses
Published in The Astrophysical journal (10-07-2008)“…We present results from a systematic investigation of the X-ray properties of a sample of moderate-redshift galaxy groups. These groups were selected not by…”
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Three Gravitational Lenses for the Price of One: Enhanced Strong Lensing through Galaxy Clustering
Published in The Astrophysical journal (10-11-2006)“…We report the serendipitous discovery of two strong gravitational lens candidates (ACS J160919+6532 and ACS J160910+6532) in deep images obtained with the…”
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Galaxy Clusters Associated with Short GRBs. I. The Fields of GRBs 050709, 050724, 050911, and 051221a
Published in The Astrophysical journal (01-05-2007)Get full text
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The Evolution of Galaxies in X-Ray-luminous Groups
Published in The Astrophysical journal (01-04-2007)“…We investigate the galaxy populations in seven X-ray-selected, intermediate-redshift groups (0.2 < z < 0.6). Overall, the galaxy populations in these systems…”
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X-Ray-selected Intermediate-Redshift Groups of Galaxies
Published in The Astrophysical journal (20-07-2006)“…We present spectroscopic confirmation of nine moderate-redshift galaxy groups and poor clusters selected from the ROSAT Deep Cluster Survey. The groups span…”
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X-Ray Properties of Intermediate-Redshift Groups of Galaxies
Published in The Astrophysical journal (01-10-2006)“…We have undertaken a multiwavelength project to study the relatively unknown properties of groups and poor clusters of galaxies at intermediate redshifts. In…”
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SEARCH FOR COSMIC-RAY-INDUCED GAMMA-RAY EMISSION IN GALAXY CLUSTERS
Published in The Astrophysical journal (20-05-2014)“…Current theories predict relativistic hadronic particle populations in clusters of galaxies in addition to the already observed relativistic leptons. In these…”
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SEARCH FOR EXTENDED GAMMA-RAY EMISSION FROM THE VIRGO GALAXY CLUSTER WITH FERMI-LAT
Published in The Astrophysical journal (20-10-2015)“…ABSTRACT Galaxy clusters are one of the prime sites to search for dark matter (DM) annihilation signals. Depending on the substructure of the DM halo of a…”
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Dark energy survey year 3 results: miscentring calibration and X-ray-richness scaling relations in redMaPPer clusters
Published in Monthly notices of the Royal Astronomical Society (01-09-2024)“…ABSTRACT We use Dark Energy Survey Year 3 (DES Y3) clusters with archival XMM–Newton and Chandra X-ray data to assess the centring performance of the redMaPPer…”
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Examining the self-interaction of dark matter through central cluster galaxy offsets
Published in Monthly notices of the Royal Astronomical Society (01-03-2024)“…ABSTRACT While collisionless cold dark matter models have been largely successful in explaining a wide range of observational data, some tensions still exist,…”
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The evolution of active galactic nuclei in clusters of galaxies from the Dark Energy Survey
Published in Monthly notices of the Royal Astronomical Society (01-03-2017)“…The correlation between active galactic nuclei (AGNs) and environment provides important clues to AGN fuelling and the relationship of black hole growth to…”
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The Evolution of Active Galactic Nuclei in Clusters of Galaxies from the Dark Energy Survey
Published 03-11-2016“…The correlation between active galactic nuclei (AGN) and environment provides important clues to AGN fueling and the relationship of black hole growth to…”
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The evolution of active galactic nuclei in clusters of galaxies from the Dark Energy Survey
Published in Monthly notices of the Royal Astronomical Society (13-12-2016)Get full text
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Dark Matter decay and annihilation in the Local Universe: CLUES from Fermi
Published 16-01-2012“…We present all-sky simulated Fermi maps of gamma-rays from dark matter decay and annihilation in the Local Universe. The dark matter distribution is obtained…”
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ERRATUM: DARK MATTER DECAY AND ANNIHILATION IN THE LOCAL UNIVERSE: CLUES FROM FERMI (2011, ApJ, 726, L6)
Published in The Astrophysical journal (2012)Get full text
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RXJ1648.7+6109: Witnessing the Formation of a Massive Group/Poor Cluster and its Brightest Galaxy
Published 02-06-2008“…Astrophys.J.685:138-146,2008 Using deep Chandra and optical spectroscopic observations, we investigate an intriguing, young massive group, RXJ1648.7+6109, at…”
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DARK MATTER DECAY AND ANNIHILATION IN THE LOCAL UNIVERSE: CLUES FROM FERMI
Published in The Astrophysical journal (2011)Get full text
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