Results 11 to 20 of about 1,317 (190)

[ITAL]J[/ITAL]-Band Spectroscopy of the [CLC][ITAL]z[/ITAL][/CLC] = 5.74 Broad Absorption Line Quasar SDSSp J104433.04−012502.2 [PDF]

open access: bronzeThe Astrophysical Journal, 2001
R. W. Goodrich   +10 more
semanticscholar   +3 more sources

Subaru High-Resolution Spectroscopy of Complex Metal Absorption Lines of the Quasar HS 1603+3820 [PDF]

open access: yesThe Astronomical Journal, 2003
35 pages, 11 figures, accepted for publication in the Astronomical ...
Misawa, Toru   +6 more
openaire   +4 more sources

Associated Absorption Lines in the Radio‐loud Quasar 3C 351: Far‐Ultraviolet Echelle Spectroscopy from theHubble Space Telescope [PDF]

open access: yesThe Astrophysical Journal, 2002
27 pages with 5 figures, accepted by ...
Yuan, Q.   +5 more
openaire   +4 more sources

An Extremely Metal-poor Lyα Emitter Candidate at z = 6 Revealed through Absorption Spectroscopy

open access: yesThe Astrophysical Journal Letters
We report the discovery of a Ly α emitter (LAE) candidate in the immediate foreground of the quasar PSO J158-14 at z _QSO = 6.0685 at a projected distance ∼29 pkpc that is associated with an extremely metal-poor absorption system.
Dominika Ďurovčíková   +12 more
doaj   +2 more sources

Galactic-scale Emission-line Outflow from the Radio-loud Quasar 3C 191

open access: yesThe Astrophysical Journal Supplement Series
Quasar feedback is routinely invoked as an indispensable ingredient in galaxy formation models. Galactic outflows are a crucial agent of quasar feedback that frequently manifest themselves in absorption and emission lines.
Qinyuan Zhao   +8 more
doaj   +2 more sources

DIISC-VI (COS-DIISC): Ultraviolet Metal Absorption Relative to the H i Disk of Galaxies

open access: yesThe Astrophysical Journal
As part of the Deciphering the Interplay between the Interstellar medium, Stars, and the Circumgalactic medium (DIISC) survey, we present the UV metal absorption features in the circumgalactic medium (CGM) near the H i gas disk (
Brad Koplitz   +7 more
doaj   +2 more sources

Low-ionization iron-rich Broad Absorption-Line Quasar SDSS J 1652+2650: Physical conditions in the ejected gas from excited Fe ii and metastable He i [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2023
We present high-resolution VLT/UVES spectroscopy and a detailed analysis of the unique Broad Absorption-Line system towards the quasar SDSS J 165252.67+265001.96.
Balashev S.A.   +6 more
semanticscholar   +1 more source

Synchrotron macro-ATR-FTIR: a powerful technique for analyzing changes in plant cell chemical composition after surfactant exposure. [PDF]

open access: yesPlant J
Significance Statement Studies on how surfactants affect plant leaf surfaces mainly focus on droplet behavior, while their impact on leaf chemistry remains unclear. Using synchrotron macro‐ATR‐FTIR, we provide a fast and non‐destructive advanced method for leaf surface analysis and chemical mapping.
Tran TLC   +6 more
europepmc   +2 more sources

Detecting and Characterizing Mg ii Absorption in DESI Survey Validation Quasar Spectra [PDF]

open access: yesAstronomical Journal, 2023
We present findings of the detection of Magnesium II (Mg ii, λ = 2796, 2803 Å) absorbers from the early data release of the Dark Energy Spectroscopic Instrument (DESI).
L. Napolitano   +35 more
semanticscholar   +1 more source

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