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PōNIUā’ENA: A LUMINOUS Z = 7.5 QUASAR HOSTING A 1.5 BILLION SOLAR MASS BLACK HOLE

Redazione
(AGENPARL) – GARCHING (GERMANY), sab 08 agosto 2020 First Author: Yang, JinyiInstruments: ALMA_Band_6, ALMA_BandsProgramIDs: 2019.1.01025.SBibCode: 2020ApJ…897L..14Y We report the discovery of a luminous quasar, J1007+2115 at z = 7.515 (“Pōniuā’ena”), from our wide-field reionization-era quasar survey. J1007+2115 is the second quasar now known at z > 7.5, deep into the......
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PROBING BLACK HOLE/GALAXY CO-EVOLUTION AT COSMIC DAWN IN HIGH DEFINITION WITH A GRAVITATIONALLY LENSED QUASAR

Redazione
(AGENPARL) – LOW EARTH ORBIT, mer 29 luglio 2020 Probing Black Hole/Galaxy Co-Evolution at Cosmic Dawn in High Definition with a Gravitationally Lensed QuasarHST Proposal 15829 Jinyi Yang (publications @ ADS)University of Arizona Cycle: 27Category: Massive Black Holes And Their Host GalaxiesProposal type: GOStatus: implementation HST Proposal Information: about this......
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A THIRTY-FOUR BILLION SOLAR MASS BLACK HOLE IN SMSS J2157─3602, THE MOST LUMINOUS KNOWN QUASAR

Redazione
(AGENPARL) – GARCHING (GERMANY), sab 25 luglio 2020 First Author: Onken, Christopher A.Instruments: VIRCAM, XSHOOTERProgramIDs: 0104.A-0410, 179.A-2010BibCode: 2020MNRAS.496.2309O From near-infrared spectroscopic measurements of the Mg II emission line doublet, we estimate the black hole (BH) mass of the quasar, SMSS J215728.21─360215.1, as being (3.4 ± 0.6) × 1010 M☉ and......
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A MICROLENSING ACCRETION DISK SIZE MEASUREMENT IN THE LENSED QUASAR WFI 2026-4536

Redazione
(AGENPARL) – GARCHING (GERMANY), sab 18 luglio 2020 First Author: Cornachione, Matthew A.Instruments: FORS1ProgramIDs: 074.A-0563, 075.A-0377BibCode: 2020ApJ…895..125C We use 13 seasons of R-band photometry from the 1.2 m Leonard Euler Swiss Telescope at La Silla to examine microlensing variability in the quadruply imaged lensed quasar WFI 2026-4536. The lightcurves exhibit......
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THE STRONG LENSING INSIGHTS INTO THE DARK ENERGY SURVEY (STRIDES) 2017/2018 FOLLOW-UP CAMPAIGN: DISCOVERY OF 10 LENSED QUASARS AND 10 QUASAR PAIRS

Redazione
(AGENPARL) – GARCHING (GERMANY), ven 10 luglio 2020 First Author: Lemon, C.Instruments: EFOSC2ProgramIDs: 0100.A-0297BibCode: 2020MNRAS.494.3491L We report the results of the STRong lensing Insights into the Dark Energy Survey (STRIDES) follow-up campaign of the late 2017/early 2018 season. We obtained spectra of 65 lensed quasar candidates with ESO Faint Object......
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THE WISSH QUASARS PROJECT. VIII. OUTFLOWS AND METALS IN THE CIRCUM-GALACTIC MEDIUM AROUND THE HYPER-LUMINOUS Z ∼ 3.6 QUASAR J1538+08

Redazione
(AGENPARL) – GARCHING (GERMANY), ven 26 giugno 2020 First Author: Travascio, A.Instruments: MUSEProgramIDs: 099.A-0316BibCode: 2020A&A…635A.157T Context. In recent years, Lyα nebulae have been routinely detected around high redshift, radio-quiet quasars thanks to the advent of the highly sensitive integral field spectrographs. Constraining the physical properties of the Lyα nebulae is......
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FOCUS: POSSIBLE FLARE FROM BLACK HOLE MERGER

Redazione
(AGENPARL) – WASHINGTON (D.C.), gio 25 giugno 2020 June 25, 2020• Physics 13, 101 Astronomers have detected a brightening of a distant quasar that coincided with a potential gravitational-wave signature of a pair of merging black holes. Caltech/R. Hurt (IPAC) A flashy encounter. In this drawing, a pair of black......

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