CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPEAGN. II. Host Bulge Properties and Black Hole Mass Estimates

dc.creatorVahram Chavushyan
dc.date2013-01-17
dc.date.accessioned2023-07-25T16:25:12Z
dc.date.available2023-07-25T16:25:12Z
dc.identifierhttp://inaoe.repositorioinstitucional.mx/jspui/handle/1009/2219
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7807400
dc.descriptionWe present a study of the host bulge properties and their relations with the blackhole mass on a sample of 10 intermediate-type active galactic nuclei (AGN). Our sample consists mainly of early type spirals, four of them hosting a bar. For 70⁺¹⁰₋₁₇% of thegalaxies we have been able to determine the type of the bulge, and find that these objects probably harbor a pseudobulge or a combination of classical bulge/ pseudobulge, suggesting that pseudobulges mightbe frequent in intermediate-typeAGN. In our sample, 50 ± 14% of the objects show double-peaked emission lines. Therefore, narrowdouble-peaked emission lines seem to be frequent in galaxies harboring a pseudobulgeor a combination of classical bulge/ pseudobulge. Depending on the bulge type, we estimated the black hole mass using the corresponding MBH -σ*relation and found them with a range of: 5.69±0.21 <log Mσ*BH <8.09±0.24. Comparing these Mσ*BH values with masses derived from the FWHM of Hβ and the continuum luminosity at 5100 Å from their SDSS-DR7 spectra (MBH) we find that eight out of ten (80⁺⁷₋₁₇%) galaxies have black hole masses that are compatible within a factor of 3.This result would support that MBH and Mσ*BH are the same for intermediate-typeAGN as has been found for type 1 AGN. However, when the type of the bulge istaken into account only 3 out of the 7 (43⁺¹⁸₋₁₅%) objects of the sample have their Mσ*BH and MBH compatible within 3-σ errors. We also find that estimations basedon the MBH–σ*relation for pseudobulges are not compatible in 50±20% of theobjects.
dc.formatapplication/pdf
dc.languageeng
dc.publisherThe Astrophysical Journal
dc.relationcitation:Benítez, Erika., et al., (2013). CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. II. Host Bulge Properties and Black Hole Mass Estimates, The Astrophysical Journal, Vol. 763(2):1-32
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectinfo:eu-repo/classification/Inspec/Galaxies: active
dc.subjectinfo:eu-repo/classification/Inspec/Galaxies: bulges
dc.subjectinfo:eu-repo/classification/Inspec/Galaxies: photometry
dc.subjectinfo:eu-repo/classification/cti/1
dc.subjectinfo:eu-repo/classification/cti/21
dc.subjectinfo:eu-repo/classification/cti/21
dc.titleCHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPEAGN. II. Host Bulge Properties and Black Hole Mass Estimates
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/acceptedVersion
dc.audiencestudents
dc.audienceresearchers
dc.audiencegeneralPublic


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