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- W2889451462 abstract "Motivated by the recent discovery of rare Enormous Lyman-Alpha Nebulae (ELAN) around z~2 quasars, we have initiated a long-term observational campaign with the MUSE instrument to directly uncover the astrophysics of the gas around quasars. We present here the first 61 targets of our effort under the acronym QSO MUSEUM (Quasar Snapshot Observations with MUse: Search for Extended Ultraviolet eMission). These quasars have a median redshfit of z=3.17, absolute $i$ magnitude in the range $-29.67leq M_i(z=2)leq-27.03$, and different levels of radio-loudness. This sample unveils diverse specimens of Ly$alpha$ nebulosities extending for tens of kiloparsecs around these quasars (on average out to a maximum projected distance of 80 kpc) above a surface brightness SB$>8.8times10^{-19}$ erg s$^{-1}$ cm$^{-2}$ arcsec$^{-2}$ ($2sigma$). The bulk of the extended Ly$alpha$ emission is within R<50 kpc, and is characterized by relatively quiescent kinematics, with average velocity dispersions of $langle sigma_{rm Lyalpha}rangle < 400$~km~s$^{-1}$. Therefore, the motions within all these Ly$alpha$ nebulosities have amplitudes consistent with gravitational motions expected in dark matter halos hosting quasars at these redshifts, possibly reflecting the complexity in propagating a fast wind on large scales. Our current data suggest a combination of photoionization and resonant scattering as powering mechanisms of the Ly$alpha$ emission. We discover the first $zsim3$ ELAN, which confirms a very low probability ($sim1%$) of occurrence of such extreme systems at these cosmic epochs. Finally, we discuss the redshift evolution currently seen in extended Ly$alpha$ emission around radio-quiet quasars from $zsim3$ to $zsim2$, concluding that it is possibly linked to a decrease of cool gas mass within the quasars' CGM from $zsim3$ to $zsim2$, and thus to the balance of cool vs hot media." @default.
- W2889451462 created "2018-09-07" @default.
- W2889451462 creator A5018266021 @default.
- W2889451462 creator A5021153233 @default.
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- W2889451462 creator A5065902238 @default.
- W2889451462 creator A5081177387 @default.
- W2889451462 creator A5083337878 @default.
- W2889451462 creator A5085250575 @default.
- W2889451462 date "2018-10-22" @default.
- W2889451462 modified "2023-10-18" @default.
- W2889451462 title "QSO MUSEUM I: a sample of 61 extended Ly α-emission nebulae surrounding<i>z</i>∼ 3 quasars" @default.
- W2889451462 cites W1492824386 @default.
- W2889451462 cites W1522221211 @default.
- W2889451462 cites W1531680348 @default.
- W2889451462 cites W1596682656 @default.
- W2889451462 cites W1674032221 @default.
- W2889451462 cites W1762019482 @default.
- W2889451462 cites W1839676125 @default.
- W2889451462 cites W1855526937 @default.
- W2889451462 cites W1858484946 @default.
- W2889451462 cites W1872782597 @default.
- W2889451462 cites W1895670736 @default.
- W2889451462 cites W1926369493 @default.
- W2889451462 cites W1943306457 @default.
- W2889451462 cites W1966667130 @default.
- W2889451462 cites W1966834396 @default.
- W2889451462 cites W1969206417 @default.
- W2889451462 cites W1970893391 @default.
- W2889451462 cites W1972992203 @default.
- W2889451462 cites W1977583522 @default.
- W2889451462 cites W1984632044 @default.
- W2889451462 cites W1985500852 @default.
- W2889451462 cites W1986058774 @default.
- W2889451462 cites W1990067933 @default.
- W2889451462 cites W1995234910 @default.
- W2889451462 cites W1997535447 @default.
- W2889451462 cites W2007714429 @default.
- W2889451462 cites W2012886609 @default.
- W2889451462 cites W2014559378 @default.
- W2889451462 cites W2017431276 @default.
- W2889451462 cites W2023106241 @default.
- W2889451462 cites W2028062388 @default.
- W2889451462 cites W2029343094 @default.
- W2889451462 cites W2032317739 @default.
- W2889451462 cites W2032531787 @default.
- W2889451462 cites W2042598102 @default.
- W2889451462 cites W2044093857 @default.
- W2889451462 cites W2045798320 @default.
- W2889451462 cites W2045838268 @default.
- W2889451462 cites W2047806989 @default.
- W2889451462 cites W2053647613 @default.
- W2889451462 cites W2054103046 @default.
- W2889451462 cites W2054498809 @default.
- W2889451462 cites W2061616354 @default.
- W2889451462 cites W2062713883 @default.
- W2889451462 cites W2062720427 @default.
- W2889451462 cites W2063386796 @default.
- W2889451462 cites W2067080837 @default.
- W2889451462 cites W2069520239 @default.
- W2889451462 cites W2071736157 @default.
- W2889451462 cites W2074132764 @default.
- W2889451462 cites W2076051966 @default.
- W2889451462 cites W2080871773 @default.
- W2889451462 cites W2081148707 @default.
- W2889451462 cites W2081660240 @default.
- W2889451462 cites W2088198344 @default.
- W2889451462 cites W2088302283 @default.
- W2889451462 cites W2089436442 @default.
- W2889451462 cites W2090436090 @default.
- W2889451462 cites W2091737889 @default.
- W2889451462 cites W2096245028 @default.
- W2889451462 cites W2101300883 @default.
- W2889451462 cites W2107953345 @default.
- W2889451462 cites W2109510044 @default.
- W2889451462 cites W2111817932 @default.
- W2889451462 cites W2112213929 @default.
- W2889451462 cites W2114682529 @default.
- W2889451462 cites W2114907309 @default.
- W2889451462 cites W2115601889 @default.
- W2889451462 cites W2116945130 @default.
- W2889451462 cites W2121478389 @default.
- W2889451462 cites W2124929923 @default.
- W2889451462 cites W2132899834 @default.
- W2889451462 cites W2136076204 @default.
- W2889451462 cites W2141864201 @default.
- W2889451462 cites W2153161644 @default.
- W2889451462 cites W2155974120 @default.
- W2889451462 cites W2162475780 @default.
- W2889451462 cites W2171262111 @default.
- W2889451462 cites W2255006479 @default.
- W2889451462 cites W2267241973 @default.
- W2889451462 cites W2286633221 @default.
- W2889451462 cites W2398976513 @default.
- W2889451462 cites W2465000883 @default.
- W2889451462 cites W2501507907 @default.
- W2889451462 cites W2518816384 @default.
- W2889451462 cites W2528817462 @default.