588 datasets found

Keywords: ultraviolet astronomy

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  • Gas and star formation in Galaxy satellites

    We have imaged the entirety of eight (plus one partial) Milky Way (MW)-like satellite systems, a total of 42 (45) satellites, from the Satellites Around Galactic Analogs II...
  • Characterizing extreme em. line gal. II. COS & LBT

    Observations of high-redshift galaxies (z>5) have shown that these galaxies have extreme emission lines with equivalent widths much larger than their local star-forming...
  • Swift Master Catalog

    This table records high-level information for each Swift observation and provides access to the data archive. Each record is associated with a single observation that contains...
  • Gamma-ray spectra of globular clusters in MW

    Millisecond pulsars are very likely the main source of gamma-ray emission from globular clusters. However, the relative contributions of two separate emission processes -...
  • Quasars as standard candles. VI.

    A sample of quasars has been recently assembled to investigate the non-linear relation between their monochromatic luminosities at 2500{AA}, and 2keV and to exploit quasars as a...
  • Abundances in eight bulge stars

    The abundances of the {alpha}-elements are key for understanding the early chemical enrichment of the Galactic bulge. The elements of interest present lines in different...
  • +150 OB stars in Sextans A

    Local Group (LG) very metal-poor massive stars are the best proxy for the First Stars of the Universe and fundamental to modelling the evolution of early galaxies. These stars...
  • Chemistry of globular cluster NGC6388

    We present the homogeneous abundance analysis for a combined sample of 185 giants in the bulge globular cluster (GC) NGC 6388. Our results are used to describe the multiple...
  • Connecting galaxy structure and star formation

    In this work, we investigate the reason behind the increased occurrence of S0 galaxies in high-density environments. Our sample comprises of ~2500 spiral and ~2000 S0 galaxies...
  • Broad-line velocity shifts in 1.5<z<7.5 quasars

    We present the results of a model-independent investigation of the rest-frame UV spectra from a comprehensive sample of 394 quasars in the redshift range 1.5=<z=<7.5. We...
  • 2<zobs<4 quasars stacked spectrum

    We investigate the metal species associated with the Ly{alpha} forest in eBOSS quasar spectra. Metal absorption lines are revealed in stacked spectra from cross-correlating the...
  • UV and optical spectra of type IIP SN2021yja

    We present three epochs of early-time ultraviolet (UV) and optical HST/STIS spectroscopy of the young, nearby Type IIP supernova (SN) 2021yja. We complement the HST data with...
  • Multiwavelength observations of GD 394

    We present new Hubble Space Telescope (HST) ultraviolet and ground-based optical observations of the hot, metal-rich white dwarf GD 394. Extreme-ultraviolet (EUV) observations...
  • Catalog of Ly{alpha} emitters

    We present a measurement of the fraction of Lyman {alpha} (Ly{alpha}) emitters (X_Ly{alpha}) amongst HST continuum-selected galaxies at 3<z<6 with the Multi-Unit...
  • Candidate LAEs at z=5.7 and z=6.6

    We present spectroscopic follow-up of candidate luminous Ly{alpha} emitters (LAEs) at z=5.7-6.6 in the SA22 field with VLT/X-SHOOTER. We confirm two new luminous LAEs at z=5.676...
  • Damped Lyman Alpha systems equivalent width

    We derive the statistical properties of neutral gas at redshifts 0.11<z<1.65 from ultraviolet (UV) measurements of quasar Ly{alpha} absorption lines corresponding to 369...
  • LAE among star-forming galaxies at z=2.5

    We conducted a deep narrow-band imaging survey with the Subaru Prime Focus Camera on the Subaru Telescope and constructed a sample of Ly{alpha} emitters (LAEs) at z=2.53 in the...
  • Stellar loci. VII. FGK stars from GALEX and Gaia

    We combine photometric data from GALEX GR6+7 All-Sky Imaging Survey and Gaia Early Data Release 3 with stellar parameters from the SAGA and PASTEL catalogs to construct...
  • Broad- and narrow-line Seyfert 1 galaxies

    We report here our comparative analysis of the active galactic nucleus (AGN) and star formation (SF) characteristics of a sample of narrow-line Seyfert 1 (NLS1) and broad-line...
  • CV eROSITA-enhanced multi-wavelength cat.

    Cataclysmic variables with degenerate donors which have evolved past the period minimum, also known as period-bouncers, are predicted to make up a great portion of the...
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