Matches in SemOpenAlex for { <https://semopenalex.org/work/W2024734482> ?p ?o ?g. }
- W2024734482 endingPage "90" @default.
- W2024734482 startingPage "90" @default.
- W2024734482 abstract "We present optical spectroscopy of a sample of 38 post-starburst quasars (PSQs) at z ∼ 0.3, 29 of which have morphological classifications based on Hubble Space Telescope imaging. These broad-lined active galactic nuclei (AGNs) possess the spectral signatures of massive intermediate-aged stellar populations, making them potentially useful for studying connections between nuclear activity and host galaxy evolution. We model the spectra in order to determine the ages and masses of the host stellar populations, and the black hole masses and Eddington fractions of the AGNs. Our model components include an instantaneous starburst, a power law, and emission lines. We find that the PSQs have MBH ∼ 108 M☉ accreting at a few percent of Eddington luminosity and host ∼1010.5 M☉ stellar populations which are several hundred Myr to a few Gyr old. We investigate relationships among these derived properties, spectral properties, and morphologies. We find that PSQs hosted in spiral galaxies have significantly weaker AGN luminosities, older starburst ages, and narrow emission-line ratios diagnostic of ongoing star formation when compared to their early-type counterparts. We conclude that the early-type PSQs are likely the result of major mergers and were likely luminous infrared galaxies in the past, while spiral PSQs with more complex star formation histories are triggered by less dramatic events (e.g., harassment, bars). We provide diagnostics to distinguish the early-type and spiral hosts when high spatial resolution imaging is not available." @default.
- W2024734482 created "2016-06-24" @default.
- W2024734482 creator A5008752570 @default.
- W2024734482 creator A5022017895 @default.
- W2024734482 creator A5041189613 @default.
- W2024734482 creator A5056839648 @default.
- W2024734482 creator A5063140041 @default.
- W2024734482 creator A5066447364 @default.
- W2024734482 creator A5066592371 @default.
- W2024734482 creator A5068604713 @default.
- W2024734482 creator A5077281560 @default.
- W2024734482 creator A5077595649 @default.
- W2024734482 creator A5083544515 @default.
- W2024734482 date "2012-12-19" @default.
- W2024734482 modified "2023-09-27" @default.
- W2024734482 title "THE PROPERTIES OF POST-STARBURST QUASARS BASED ON OPTICAL SPECTROSCOPY" @default.
- W2024734482 cites W1945771489 @default.
- W2024734482 cites W1967876247 @default.
- W2024734482 cites W1972218288 @default.
- W2024734482 cites W1974174849 @default.
- W2024734482 cites W1984644267 @default.
- W2024734482 cites W1986644900 @default.
- W2024734482 cites W1997529816 @default.
- W2024734482 cites W1999519547 @default.
- W2024734482 cites W2000865644 @default.
- W2024734482 cites W2002044265 @default.
- W2024734482 cites W2005501750 @default.
- W2024734482 cites W2016832194 @default.
- W2024734482 cites W2030114922 @default.
- W2024734482 cites W2036435136 @default.
- W2024734482 cites W2044093857 @default.
- W2024734482 cites W2060367466 @default.
- W2024734482 cites W2069520812 @default.
- W2024734482 cites W2081248194 @default.
- W2024734482 cites W2092504858 @default.
- W2024734482 cites W2095090441 @default.
- W2024734482 cites W2111817932 @default.
- W2024734482 cites W2112028701 @default.
- W2024734482 cites W2120684453 @default.
- W2024734482 cites W2120760861 @default.
- W2024734482 cites W2123023495 @default.
- W2024734482 cites W2128089313 @default.
- W2024734482 cites W2129278048 @default.
- W2024734482 cites W2130795121 @default.
- W2024734482 cites W2135894620 @default.
- W2024734482 cites W2145024951 @default.
- W2024734482 cites W2146942797 @default.
- W2024734482 cites W2154955582 @default.
- W2024734482 cites W2159393931 @default.
- W2024734482 cites W2163212281 @default.
- W2024734482 cites W2164550895 @default.
- W2024734482 cites W2166498162 @default.
- W2024734482 cites W2167635287 @default.
- W2024734482 cites W2168495929 @default.
- W2024734482 cites W2169224160 @default.
- W2024734482 cites W3098208149 @default.
- W2024734482 cites W3098248831 @default.
- W2024734482 cites W3098784892 @default.
- W2024734482 cites W3098855090 @default.
- W2024734482 cites W3099110966 @default.
- W2024734482 cites W3099344743 @default.
- W2024734482 cites W3099700849 @default.
- W2024734482 cites W3099902829 @default.
- W2024734482 cites W3100024326 @default.
- W2024734482 cites W3100638611 @default.
- W2024734482 cites W3100679294 @default.
- W2024734482 cites W3102222309 @default.
- W2024734482 cites W3103707630 @default.
- W2024734482 cites W3105075980 @default.
- W2024734482 cites W3105593360 @default.
- W2024734482 cites W3105878870 @default.
- W2024734482 cites W3106486045 @default.
- W2024734482 cites W4235039856 @default.
- W2024734482 cites W4299527096 @default.
- W2024734482 doi "https://doi.org/10.1088/0004-637x/762/2/90" @default.
- W2024734482 hasPublicationYear "2012" @default.
- W2024734482 type Work @default.
- W2024734482 sameAs 2024734482 @default.
- W2024734482 citedByCount "40" @default.
- W2024734482 countsByYear W20247344822013 @default.
- W2024734482 countsByYear W20247344822014 @default.
- W2024734482 countsByYear W20247344822015 @default.
- W2024734482 countsByYear W20247344822016 @default.
- W2024734482 countsByYear W20247344822017 @default.
- W2024734482 countsByYear W20247344822018 @default.
- W2024734482 countsByYear W20247344822019 @default.
- W2024734482 countsByYear W20247344822020 @default.
- W2024734482 countsByYear W20247344822021 @default.
- W2024734482 countsByYear W20247344822022 @default.
- W2024734482 countsByYear W20247344822023 @default.
- W2024734482 crossrefType "journal-article" @default.
- W2024734482 hasAuthorship W2024734482A5008752570 @default.
- W2024734482 hasAuthorship W2024734482A5022017895 @default.
- W2024734482 hasAuthorship W2024734482A5041189613 @default.
- W2024734482 hasAuthorship W2024734482A5056839648 @default.
- W2024734482 hasAuthorship W2024734482A5063140041 @default.
- W2024734482 hasAuthorship W2024734482A5066447364 @default.
- W2024734482 hasAuthorship W2024734482A5066592371 @default.