11,333 datasets found

Keywords: galactic and extragalactic astronomy

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  • [Fe/H] dependence of the wide-binary fraction

    The metallicity dependence of the wide-binary fraction (WBF) IN stellar populations plays a critical role in resolving the open question of wide-binary formation. In this paper,...
  • ALMA/NOEMA high-z star-forming galaxies

    We have used ALMA and NOEMA to study the molecular gas reservoirs in 61 ALMA-identified submillimetre galaxies (SMGs) in the COSMOS, UDS, and ECDFS fields. We detect ^12^CO...
  • GALAH unresolved triple Sun-like star

    The latest Gaia data release enables us to accurately identify stars that are more luminous than would be expected on the basis of their spectral type and distance. During an...
  • Hot corona properties of Swift/BAT-detected AGNs

    Using a sample of 208 broad-line active galactic nuclei (AGNs) from the Swift/BAT AGN Spectroscopic Survey in the ultra-hard X-ray band (14-195keV), the hot corona properties...
  • Distances and ages of 150 open clusters

    We investigate a sample of open cluster candidates with no previous age determination using astrometric and photometric data from the Gaia DR2 catalogue. Using proper motions...
  • Distances for 2062 nearby spiral galaxies

    We present the final distance measurements for the 2MASS Tully-Fisher (2MTF) survey. The final 2MTF catalogue contains 2062 nearby spiral galaxies in the CMB frame velocity...
  • MIR spectra of AGNs heating molecular gas

    We analyse 2015 mid-infrared (MIR) spectra of galaxies observed with Spitzer's Infrared Spectrograph, including objects with growing supermassive black holes (SMBHs) and objects...
  • The metal-rich halo tail extended in z

    We report an analysis of the metal-rich tail ([Fe/H]>-0.75) of stars located at distances from the Galactic plane up to |z|~10kpc, observed by the Apache Point Observatory...
  • Spiral structure as revealed by O and B stars

    We investigate the morphology and kinematics of the Galactic spiral structure based on a new sample of O- and early B-type stars. We select 6858 highly confident OB star...
  • Dark matter halo and stellar stream asymmetry

    We study the effect of dynamical friction on globular clusters (GCs) and on the stars evaporated from the GCs (stellar streams) moving in the Galactic halo. Due to dynamical...
  • 80 young open clusters from Gaia DR2

    In this work we revisit the issue of the rotation speed of the spiral arms and the location of the corotation radius of our Galaxy. This research was performed using homogeneous...
  • Hubble Frontier Fields clusters lensing

    We present free-form gravitational lensing models derived with the WSLAP+ code for the six Hubble Frontier Fields clusters using the latest data available from the Frontier...
  • Chemical compositions of Galactic bulge stars

    This work explores the detailed chemistry of the Milky Way bulge using the HERMES spectrograph on the Anglo-Australian Telescope. Here, we present the abundance ratios of 13...
  • Offset discs and bars in SDSS galaxies

    We use multiwavelength Sloan Digital Sky Survey (SDSS) images and Galaxy Zoo morphologies to identify a sample of ~270 late-type galaxies with an off-centre bar. We measure...
  • SDSS quasars with PV broad absorption

    Broad absorption lines (BALs) found in a significant fraction of quasar spectra identify high-velocity outflows that might be present in all quasars and could be a major factor...
  • Properties of BAL quasars

    We investigate broad absorption line (BAL) disappearance and emergence using a 470 BAL-quasar sample over <=0.10-5.25 rest-frame years with at least three spectroscopic...
  • New classification of CALIFA galaxies

    We present a galaxy classification system for 238 (E1-Sdm) CALIFA (Calar Alto Legacy Integral Field Area) galaxies based on the shapes and amplitudes of their circular velocity...
  • JCMT Plane Survey. first complete data release

    We present the first data release of the James Clerk Maxwell Telescope Plane Survey (JPS), the JPS Public Release 1. JPS is an 850-{mu}m continuum survey of six fields in the...
  • Mass-metallicity relation revisited with CALIFA

    We present an updated version of the mass-metallicity (MZ) relation using integral field spectroscopy data obtained from 734 galaxies observed by the CALIFA survey. These...
  • White dwarf population from the SDSS DR12

    We use the Sloan Digital Sky Survey Data Release 12, which is the largest available white dwarf catalogue to date, to study the evolution of the kinematical properties of the...
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