Broadband Spectral Energy Distributions of SDSS-selected Quasars and of Their Host Galaxies: Intense Activity at the Onset of AGN Feedback. Bianchini, F., Fabbian, G., Lapi, A., Gonzalez-Nuevo, J., Gilli, R., & Baccigalupi, C. The Astrophysical Journal, 871:136, February, 2019. ![Broadband Spectral Energy Distributions of SDSS-selected Quasars and of Their Host Galaxies: Intense Activity at the Onset of AGN Feedback [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex We present the mean spectral energy distribution (SED) of a sample of optically selected quasars (QSOs) at redshifts of 1 ≤ z ≤ 5. To derive it, we exploit photometric information from the Sloan Digital Sky Survey, UKIRT Infrared Deep Sky Survey, and Wide-field Infrared Survey Explorer surveys in combination with a stacking analysis of Herschel, AKARI, and Planck maps at the location of the QSOs. The near-UV and optical parts of the reconstructed mean rest-frame SED are similar to those found in other studies. However, the SED shows an excess at 1-2 μm (when compared to the aforementioned SEDs normalized in the near UV) and a prominent bump around 4-6 μm, followed by a decrease out to ∼20 μm and a subsequent far-IR bump. From the fitted SEDs, we estimate the average active galactic nucleus (AGN) luminosity L AGN and star formation rate (SFR) as a function of cosmic time, finding typical \Lp̌hantom\\AGN\∼ \10\46\–\\10\47 erg s-1 and SFR ∼50-1000 M ⊙ yr-1. We develop mid-IR-based criteria to split the QSO sample, finding that these allow us to move along the average relationship in the SFR versus L AGN diagram toward increasing AGN luminosities. When interpreted in the context of the in situ coevolution scenario presented by Lapi et al., our results suggest that the detection in the far-IR band is an effective criterion to select objects where the star formation is on the verge of being affected by energy/momentum feedback from the central AGN.
@article{bianchini_broadband_2019,
title = {Broadband {Spectral} {Energy} {Distributions} of {SDSS}-selected {Quasars} and of {Their} {Host} {Galaxies}: {Intense} {Activity} at the {Onset} of {AGN} {Feedback}},
volume = {871},
shorttitle = {Broadband {Spectral} {Energy} {Distributions} of {SDSS}-selected {Quasars} and of {Their} {Host} {Galaxies}},
url = {http://adsabs.harvard.edu/abs/2019ApJ...871..136B},
doi = {10.3847/1538-4357/aaf86b},
abstract = {We present the mean spectral energy distribution (SED) of a sample of
optically selected quasars (QSOs) at redshifts of 1 ≤ z ≤ 5. To
derive it, we exploit photometric information from the Sloan Digital Sky
Survey, UKIRT Infrared Deep Sky Survey, and Wide-field Infrared Survey
Explorer surveys in combination with a stacking analysis of Herschel,
AKARI, and Planck maps at the location of the QSOs. The near-UV and
optical parts of the reconstructed mean rest-frame SED are similar to
those found in other studies. However, the SED shows an excess at 1-2
μm (when compared to the aforementioned SEDs normalized in the near
UV) and a prominent bump around 4-6 μm, followed by a decrease out to
∼20 μm and a subsequent far-IR bump. From the fitted SEDs, we
estimate the average active galactic nucleus (AGN) luminosity L
AGN and star formation rate (SFR) as a function of cosmic
time, finding typical \{L\vphantom{\{}\}AGN\}∼
\{10\}46\{--\}\{10\}47 erg s-1 and SFR
∼50-1000 M ⊙ yr-1. We develop mid-IR-based
criteria to split the QSO sample, finding that these allow us to move
along the average relationship in the SFR versus L AGN
diagram toward increasing AGN luminosities. When interpreted in the
context of the in situ coevolution scenario presented by Lapi et al.,
our results suggest that the detection in the far-IR band is an
effective criterion to select objects where the star formation is on the
verge of being affected by energy/momentum feedback from the central
AGN.},
urldate = {2020-10-07},
journal = {The Astrophysical Journal},
author = {Bianchini, Federico and Fabbian, Giulio and Lapi, Andrea and Gonzalez-Nuevo, Joaquin and Gilli, Roberto and Baccigalupi, Carlo},
month = feb,
year = {2019},
keywords = {galaxies: active, infrared: galaxies, quasars: general},
pages = {136},
}
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To derive it, we exploit photometric information from the Sloan Digital Sky Survey, UKIRT Infrared Deep Sky Survey, and Wide-field Infrared Survey Explorer surveys in combination with a stacking analysis of Herschel, AKARI, and Planck maps at the location of the QSOs. The near-UV and optical parts of the reconstructed mean rest-frame SED are similar to those found in other studies. However, the SED shows an excess at 1-2 μm (when compared to the aforementioned SEDs normalized in the near UV) and a prominent bump around 4-6 μm, followed by a decrease out to ∼20 μm and a subsequent far-IR bump. From the fitted SEDs, we estimate the average active galactic nucleus (AGN) luminosity L AGN and star formation rate (SFR) as a function of cosmic time, finding typical \\Lp̌hantom\\\\AGN\\∼ \\10\\46\\–\\\\10\\47 erg s-1 and SFR ∼50-1000 M ⊙ yr-1. We develop mid-IR-based criteria to split the QSO sample, finding that these allow us to move along the average relationship in the SFR versus L AGN diagram toward increasing AGN luminosities. When interpreted in the context of the in situ coevolution scenario presented by Lapi et al., our results suggest that the detection in the far-IR band is an effective criterion to select objects where the star formation is on the verge of being affected by energy/momentum feedback from the central AGN.","urldate":"2020-10-07","journal":"The Astrophysical Journal","author":[{"propositions":[],"lastnames":["Bianchini"],"firstnames":["Federico"],"suffixes":[]},{"propositions":[],"lastnames":["Fabbian"],"firstnames":["Giulio"],"suffixes":[]},{"propositions":[],"lastnames":["Lapi"],"firstnames":["Andrea"],"suffixes":[]},{"propositions":[],"lastnames":["Gonzalez-Nuevo"],"firstnames":["Joaquin"],"suffixes":[]},{"propositions":[],"lastnames":["Gilli"],"firstnames":["Roberto"],"suffixes":[]},{"propositions":[],"lastnames":["Baccigalupi"],"firstnames":["Carlo"],"suffixes":[]}],"month":"February","year":"2019","keywords":"galaxies: active, infrared: galaxies, quasars: general","pages":"136","bibtex":"@article{bianchini_broadband_2019,\n\ttitle = {Broadband {Spectral} {Energy} {Distributions} of {SDSS}-selected {Quasars} and of {Their} {Host} {Galaxies}: {Intense} {Activity} at the {Onset} of {AGN} {Feedback}},\n\tvolume = {871},\n\tshorttitle = {Broadband {Spectral} {Energy} {Distributions} of {SDSS}-selected {Quasars} and of {Their} {Host} {Galaxies}},\n\turl = {http://adsabs.harvard.edu/abs/2019ApJ...871..136B},\n\tdoi = {10.3847/1538-4357/aaf86b},\n\tabstract = {We present the mean spectral energy distribution (SED) of a sample of \noptically selected quasars (QSOs) at redshifts of 1 ≤ z ≤ 5. To\nderive it, we exploit photometric information from the Sloan Digital Sky\nSurvey, UKIRT Infrared Deep Sky Survey, and Wide-field Infrared Survey\nExplorer surveys in combination with a stacking analysis of Herschel,\nAKARI, and Planck maps at the location of the QSOs. The near-UV and\noptical parts of the reconstructed mean rest-frame SED are similar to\nthose found in other studies. However, the SED shows an excess at 1-2\nμm (when compared to the aforementioned SEDs normalized in the near\nUV) and a prominent bump around 4-6 μm, followed by a decrease out to\n∼20 μm and a subsequent far-IR bump. From the fitted SEDs, we\nestimate the average active galactic nucleus (AGN) luminosity L\nAGN and star formation rate (SFR) as a function of cosmic\ntime, finding typical \\{L\\vphantom{\\{}\\}AGN\\}∼\n\\{10\\}46\\{--\\}\\{10\\}47 erg s-1 and SFR\n∼50-1000 M ⊙ yr-1. We develop mid-IR-based\ncriteria to split the QSO sample, finding that these allow us to move\nalong the average relationship in the SFR versus L AGN\ndiagram toward increasing AGN luminosities. When interpreted in the\ncontext of the in situ coevolution scenario presented by Lapi et al.,\nour results suggest that the detection in the far-IR band is an\neffective criterion to select objects where the star formation is on the\nverge of being affected by energy/momentum feedback from the central\nAGN.},\n\turldate = {2020-10-07},\n\tjournal = {The Astrophysical Journal},\n\tauthor = {Bianchini, Federico and Fabbian, Giulio and Lapi, Andrea and Gonzalez-Nuevo, Joaquin and Gilli, Roberto and Baccigalupi, Carlo},\n\tmonth = feb,\n\tyear = {2019},\n\tkeywords = {galaxies: active, infrared: galaxies, quasars: general},\n\tpages = {136},\n}\n\n","author_short":["Bianchini, F.","Fabbian, G.","Lapi, A.","Gonzalez-Nuevo, J.","Gilli, R.","Baccigalupi, C."],"key":"bianchini_broadband_2019","id":"bianchini_broadband_2019","bibbaseid":"bianchini-fabbian-lapi-gonzaleznuevo-gilli-baccigalupi-broadbandspectralenergydistributionsofsdssselectedquasarsandoftheirhostgalaxiesintenseactivityattheonsetofagnfeedback-2019","role":"author","urls":{"Paper":"http://adsabs.harvard.edu/abs/2019ApJ...871..136B"},"keyword":["galaxies: active","infrared: galaxies","quasars: general"],"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/polyphant","dataSources":["7gvjSdWrEu7z5vjjj"],"keywords":["galaxies: active","infrared: galaxies","quasars: general"],"search_terms":["broadband","spectral","energy","distributions","sdss","selected","quasars","host","galaxies","intense","activity","onset","agn","feedback","bianchini","fabbian","lapi","gonzalez-nuevo","gilli","baccigalupi"],"title":"Broadband Spectral Energy Distributions of SDSS-selected Quasars and of Their Host Galaxies: Intense Activity at the Onset of AGN Feedback","year":2019}