Optical and near-UV spectroscopic properties of low-redshift jetted quasars in the main sequence context
| Title: | Optical and near-UV spectroscopic properties of low-redshift jetted quasars in the main sequence context |
|---|---|
| Authors: | Terefe, Shimeles, Del Olmo, Ascensión, Marziani, Paola, Pović, Mirjana, Martínez-Carballo, María Angeles, Perea, Jaime, Márquez, Isabel |
| Publication Year: | 2023 |
| Collection: | Astrophysics |
| Subject Terms: | Astrophysics - Astrophysics of Galaxies |
| More Details: | This paper presents new optical and near-UV spectra of 11 extremely powerful jetted quasars, with radio to optical flux density ratio $>$ 10$^3$, that concomitantly cover the low-ionization emission of \mgii\ and \hb\ as well as the \feii\ blends in the redshift range $0.35 \lesssim z \lesssim 1$. We aim to quantify broad emission line differences between radio-loud (RL) and radio-quiet (RQ) quasars by using the 4D eigenvector 1 parameter space and its Main Sequence (MS) and to check the effect of powerful radio ejection on the low ionization broad emission lines. The \hb\ and \mgii\ emission lines were measured by using non-linear multicomponent fittings as well as by analysing their full profile. We found that broad emission lines show large redward asymmetry both in \hb\ and \mgii. The location of our RL sources in a UV plane looks similar to the optical one, with weak \feiiuv\ emission and broad \mgii. We supplement the 11 sources with large samples from previous work to gain some general inferences. We found that, compared to RQ, our extreme RL quasars show larger median \hb\ full width at half maximum (FWHM), weaker \feii\ emission, larger \mbh, lower \lledd, and a restricted bf space occupation in the optical and UV MS planes. The differences are more elusive when the comparison is carried out by restricting the RQ population to the region of the MS occupied by RL sources, albeit an unbiased comparison matching \mbh\ and \lledd\ suggests that the most powerful RL quasars show the highest redward asymmetries in \hb. Comment: The paper has been accepted for publishing in MNRAS. Has 26 pages and 59 figures |
| Document Type: | Working Paper |
| Access URL: | http://arxiv.org/abs/2308.06080 |
| Accession Number: | edsarx.2308.06080 |
| Database: | arXiv |
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| Header | DbId: edsarx DbLabel: arXiv An: edsarx.2308.06080 RelevancyScore: 1065 AccessLevel: 3 PubType: Report PubTypeId: report PreciseRelevancyScore: 1065.24401855469 |
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| Items | – Name: Title Label: Title Group: Ti Data: Optical and near-UV spectroscopic properties of low-redshift jetted quasars in the main sequence context – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Terefe%2C+Shimeles%22">Terefe, Shimeles</searchLink><br /><searchLink fieldCode="AR" term="%22Del+Olmo%2C+Ascensión%22">Del Olmo, Ascensión</searchLink><br /><searchLink fieldCode="AR" term="%22Marziani%2C+Paola%22">Marziani, Paola</searchLink><br /><searchLink fieldCode="AR" term="%22Pović%2C+Mirjana%22">Pović, Mirjana</searchLink><br /><searchLink fieldCode="AR" term="%22Martínez-Carballo%2C+María+Angeles%22">Martínez-Carballo, María Angeles</searchLink><br /><searchLink fieldCode="AR" term="%22Perea%2C+Jaime%22">Perea, Jaime</searchLink><br /><searchLink fieldCode="AR" term="%22Márquez%2C+Isabel%22">Márquez, Isabel</searchLink> – Name: DatePubCY Label: Publication Year Group: Date Data: 2023 – Name: Subset Label: Collection Group: HoldingsInfo Data: Astrophysics – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Astrophysics+-+Astrophysics+of+Galaxies%22">Astrophysics - Astrophysics of Galaxies</searchLink> – Name: Abstract Label: Description Group: Ab Data: This paper presents new optical and near-UV spectra of 11 extremely powerful jetted quasars, with radio to optical flux density ratio $>$ 10$^3$, that concomitantly cover the low-ionization emission of \mgii\ and \hb\ as well as the \feii\ blends in the redshift range $0.35 \lesssim z \lesssim 1$. We aim to quantify broad emission line differences between radio-loud (RL) and radio-quiet (RQ) quasars by using the 4D eigenvector 1 parameter space and its Main Sequence (MS) and to check the effect of powerful radio ejection on the low ionization broad emission lines. The \hb\ and \mgii\ emission lines were measured by using non-linear multicomponent fittings as well as by analysing their full profile. We found that broad emission lines show large redward asymmetry both in \hb\ and \mgii. The location of our RL sources in a UV plane looks similar to the optical one, with weak \feiiuv\ emission and broad \mgii. We supplement the 11 sources with large samples from previous work to gain some general inferences. We found that, compared to RQ, our extreme RL quasars show larger median \hb\ full width at half maximum (FWHM), weaker \feii\ emission, larger \mbh, lower \lledd, and a restricted bf space occupation in the optical and UV MS planes. The differences are more elusive when the comparison is carried out by restricting the RQ population to the region of the MS occupied by RL sources, albeit an unbiased comparison matching \mbh\ and \lledd\ suggests that the most powerful RL quasars show the highest redward asymmetries in \hb.<br />Comment: The paper has been accepted for publishing in MNRAS. Has 26 pages and 59 figures – Name: TypeDocument Label: Document Type Group: TypDoc Data: Working Paper – Name: URL Label: Access URL Group: URL Data: <link linkTarget="URL" linkTerm="http://arxiv.org/abs/2308.06080" linkWindow="_blank">http://arxiv.org/abs/2308.06080</link> – Name: AN Label: Accession Number Group: ID Data: edsarx.2308.06080 |
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| RecordInfo | BibRecord: BibEntity: Subjects: – SubjectFull: Astrophysics - Astrophysics of Galaxies Type: general Titles: – TitleFull: Optical and near-UV spectroscopic properties of low-redshift jetted quasars in the main sequence context Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Terefe, Shimeles – PersonEntity: Name: NameFull: Del Olmo, Ascensión – PersonEntity: Name: NameFull: Marziani, Paola – PersonEntity: Name: NameFull: Pović, Mirjana – PersonEntity: Name: NameFull: Martínez-Carballo, María Angeles – PersonEntity: Name: NameFull: Perea, Jaime – PersonEntity: Name: NameFull: Márquez, Isabel IsPartOfRelationships: – BibEntity: Dates: – D: 11 M: 08 Type: published Y: 2023 |
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