A5100743037- Galaxies: Formation, Evolution, Phenomena
- Astrophysical Phenomena and Observations
- Astronomy and Astrophysical Research
- Astrophysics and Cosmic Phenomena
- Stellar, planetary, and galactic studies
- Astrophysics and Star Formation Studies
- Gamma-ray bursts and supernovae
- Astronomical Observations and Instrumentation
- Radio Astronomy Observations and Technology
- Forensic Anthropology and Bioarchaeology Studies
- Paleopathology and ancient diseases
- Archaeology and ancient environmental studies
- Adaptive optics and wavefront sensing
- Spectroscopy and Laser Applications
- Forensic and Genetic Research
- Particle Accelerators and Free-Electron Lasers
- Forensic Entomology and Diptera Studies
- History and Developments in Astronomy
- Atomic and Molecular Physics
- Cultural Heritage Materials Analysis
- 3D Surveying and Cultural Heritage
- Pulsars and Gravitational Waves Research
- Genetic factors in colorectal cancer
- Archaeological Research and Protection
- Colorectal Cancer Treatments and Studies
Silicon Austria Labs (Austria)
2024
Science Oxford
2024
University of Oxford
2024
Government of Victoria
2024
Columbia University
2024
University of Bradford
2013-2023
Honeywell (Canada)
2023
Kitware (United States)
2022-2023
Johns Hopkins Medicine
2023
Johns Hopkins University
2023
We report here the genome sequence of an ancient human. Obtained from ∼4,000-year-old permafrost-preserved hair, represents a male individual first known culture to settle in Greenland. Sequenced average depth 20×, we recover 79% diploid genome, amount close practical limit current sequencing technologies. identify 353,151 high-confidence single-nucleotide polymorphisms (SNPs), which 6.8% have not been reported previously. estimate raw read contamination be no higher than 0.8%. use...
In a biomechanical and morphological study of cadaver knees clinical end-result fifty patients with tears the anterior cruciate ligament, structure function mechanism injury, results various forms therapy were analyzed. It was concluded that tension ligament varies during knee motion, being least at from 40 to 50 degrees flexion; there are adequate intraligamentous blood vessels nerves for healing occur; isolated do occur (probably as result internal-rotation displacement tibia respect...
Abstract Ancient human mobility at the individual level is conventionally studied by diverse application of suitable techniques (e.g. aDNA, radiogenic strontium isotopes, as well oxygen and lead isotopes) to either hard and/or soft tissues. However, limited preservation coexisting tissues hampers possibilities investigating high-resolution diachronic periods in life a single individual. Here, we present results multidisciplinary study an exceptionally preserved circa 3.400-year old Danish...
view Abstract Citations (391) References (55) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Difference between Radio-loud and Radio-quiet Active Galaxies Wilson, A. S. ; Colbert, E. J. M. recent development of unified theories active galactic nuclei (AGNs) has indicated that there are two physically distinct classes these objects-radio-loud radio-quiet. primary observational distinctions the types following. (1) radio-loud objects produce large-scale...
Chandra X-ray observations of the giant elliptical galaxy M87 resolve thermal state hot interstellar medium into accretion (Bondi) radius its central 3 × 109 M☉ black hole. We measure gas temperature and density profiles calculate Bondi rate, ~ 0.1 yr-1. The luminosity active nucleus observed with is LX,0.5-7 keV 7 1040 ergs s-1. This value much less than predicted nuclear luminosity, LBondi 5 1044 s-1, for at rate a canonical radiative efficiency 10%. If hole in accretes this it must do so...
view Abstract Citations (414) References (66) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Radio structures of Seyfert galaxies. VI. VLA observations a nearby sample. Ulvestad, J. S. ; Wilson, A. The radio properties distance-limited sample 25 and relatively narrow line X-ray galaxies (NLXGs) having recession velocities less than 3100 km/s with respect to the centroid Local Group are studied using maps. Previous conclusions that sources in type 2 Seyferts...
Although the application of sequencing-by-synthesis techniques to DNA extracted from bones has revolutionized study ancient DNA, it been plagued by large fractions contaminating environmental DNA. The genetic analyses hair shafts could be a solution: We present 10 previously unexamined Siberian mammoth (Mammuthus primigenius) mitochondrial genomes, sequenced with up 48-fold coverage. observed levels damage-derived sequencing errors were lower than those in published frozen bone samples, even...
There have been many suggestions that starbursts may play an important role in Seyfert galaxies. Recent analyses of the UV, optical, and near-IR "featureless continuum" (FC) type 2 nuclei provided indirect evidence FC be produced by a compact starburst this provide power source for pronounced far-IR excess In present paper, we discuss Hubble Space Telescope (HST) images UV spectrum plus new ground-based near-UV through spectra Mrk 477 (=I Zw 92). This object is arguably most powerful nucleus...
view Abstract Citations (229) References (67) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Multiwavelength Tests of the Dusty Torus Model for Seyfert Galaxies Mulchaey, John S. ; Koratkar, Anuradha Ward, Martin J. Wilson, Andrew Whittle, Mark Antonucci, Robert R. Kinney, Anne L. Hurt, Todd We present a compilation emission properties sample 116 galaxies based on both previously unpublished data and measurements available in literature. These include fluxes...
view Abstract Citations (250) References (33) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Radio Structures of Seyfert Galaxies. VII. Extension a Distance-limited Sample Ulvestad, James S. ; Wilson, Andrew The VLA has been used at 6 and 20 cm to observe 27 galaxies with recessional velocities less than 4600 km s^-1^ that had not mapped previously. Observational results are presented for these galaxies. All 57 objects known be as mid-1983 recession δ >=...
Four recently discovered frozen child mummies from two of the highest peaks in south central Andes now yield tantalizing evidence preparatory stages leading to Inca ritual killing as represented by unique capacocha rite. Our interdisciplinary study examined hair obtain detailed genetic and diachronic isotopic information. This approach has allowed us reconstruct aspects individual identity diet, make inferences concerning social background, gain insight on hitherto unknown processes which...
The Ariel V Sky Survey Instrument has detected X-ray emission from 13 Seyfert galaxies (11 of which have not been previously at wavelengths), bringing the total number in this waveband to 15. Two these were known be Seyferts prior observations and discovered by obtaining optical spectra inside error boxes previous unidentified sources. In paper we give a detailed description identifications, both statistical individual points view, discussion implications results. are brightest, wavelengths,...
Human identification from biological material is largely dependent on the ability to characterize genetic polymorphisms in DNA. Unfortunately, DNA can degrade environment, sometimes below level at which it be amplified by PCR. Protein however chemically more robust than and persist for longer periods. also contains variation form of single amino acid polymorphisms. These used infer status non-synonymous nucleotide polymorphism alleles. To demonstrate this, we mass spectrometry-based shotgun...
We present HST/WFPC2 images, in narrowband filters containing the [O III] λ5007 and Hα + [N II] emission lines their adjacent continua, of a sample seven Seyfert 2 galaxies selected because they possess either extended emission-line regions ground-based observations or hidden broad-line region polarized light. Six have also been observed with VLA order to obtain radio maps better quality angular resolution than those literature. find detailed correspondences between features clearly...
We have observed the narrow-line regions (NLRs) of seven brightest radio-quiet Palomar-Green (or Bright Quasar Survey) quasars (z < 0.5) with Wide Field Planetary Camera 2 on board Hubble Space Telescope (HST). Linear-ramp filters were used to image [O III] λ5007 line emission 00455-01 pixel resolution. find that NLRs are very compact typical extents 2''-4''. Two show filamentary structures similar Seyfert NLRs. They may be related radio outflows. Most interestingly, when including a sample...
We present and discuss Hubble Space Telescope (HST) (WFPC2 FOC) images ultraviolet (GHRS) spectra plus ground-based optical of three Seyfert 2 nuclei (NGC 7130, NGC 5135 IC 3639). These galaxies, together with Mrk 477 (Heckman et al.), were selected on the basis brightness from a bigger sample that comprises 20 brightest nuclei, goal studying starburst-active galactic nucleus (AGN) connection origin so-called "featureless continuum" in nuclei. The data provide direct evidence existence...
LINER nuclei, which are present in many nearby galactic bulges, may be the manifestation of low-rate or low-radiative-efficiency accretion onto supermassive central black holes. However, it has been unclear whether compact UV nuclear sources LINERs clusters massive stars, rather than being directly related to process. We have used Hubble Space Telescope monitor variability a sample 17 galaxies with nuclei and sources. Fifteen were observed more once, two five epochs per galaxy, spanning up...
The VLA has been used at 3.6 and 20 cm to image a sample of about 50 early-type Seyfert galaxies with recessional velocities less than 7,000 km/s total visual magnitude 14.5. nuclear radio structures 2.0's in the tend be aligned [OIII] Halpha+[NII] even though extents are smaller by factor ~2->5. This alignment, previously known for individual Seyferts `linear' sources, is here shown characteristic as class. also show significant alignment between emission-line ([OIII] Halpha+[NII]) axes...