Gemini Near Infrared Spectrograph-Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts

Autores
Matthews, Brandon M.; Dix, Cooper; Shemmer, Ohad; Brotherton, Michael S.; Myers, Adam D.; Andruchow, Ileana; Brandt, W. N.; Gallagher, S.C.; Green, Richard; Lira, Paulina; McLane, Jacob N.; Plotkin, Richard M.; Richards, Gordon T.; Runnoe, Jessie C.; Schneider, Donald P.; Strauss, Michael A.
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Quasars at z ≳ 1 most often have redshifts measured from rest-frame ultraviolet emission lines. One of the most common such lines, C iv λ1549, shows blueshifts up to ≈5000 km s-1 and in rare cases even higher. This blueshifting results in highly uncertain redshifts when compared to redshift determinations from rest-frame optical emission lines, e.g., from the narrow [O iii] λ5007 feature. We present spectroscopic measurements for 260 sources at 1.55 ≲ z ≲ 3.50 having -28.0 ≲ M i ≲ - 30.0 mag from the Gemini Near Infrared Spectrograph-Distant Quasar Survey (GNIRS-DQS) catalog, augmenting the previous iteration, which contained 226 of the 260 sources whose measurements are improved upon in this work. We obtain reliable systemic redshifts based on [O iii] λ5007 for a subset of 121 sources, which we use to calibrate prescriptions for correcting UV-based redshifts. These prescriptions are based on a regression analysis involving C iv full-width-at-half-maximum intensity and equivalent width, along with the UV continuum luminosity at a rest-frame wavelength of 1350 Å. Applying these corrections can improve the accuracy and the precision in the C iv-based redshift by up to ∼850 km s-1 and ∼150 km s-1, respectively, which correspond to ∼8.5 and ∼1.5 Mpc in comoving distance at z = 2.5. Our prescriptions also improve the accuracy of the best available multifeature redshift determination algorithm by ∼100 km s-1, indicating that the spectroscopic properties of the C iv emission line can provide robust redshift estimates for high-redshift quasars. We discuss the prospects of our prescriptions for cosmological and quasar studies utilizing upcoming large spectroscopic surveys.
Fil: Matthews, Brandon M.. University of North Texas; Estados Unidos
Fil: Dix, Cooper. University of North Texas; Estados Unidos
Fil: Shemmer, Ohad. University of North Texas; Estados Unidos
Fil: Brotherton, Michael S.. University Of Wyoming; Estados Unidos
Fil: Myers, Adam D.. University Of Wyoming; Estados Unidos
Fil: Andruchow, Ileana. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Brandt, W. N.. Eberly College Of Science; Estados Unidos. Pennsylvania State University; Estados Unidos
Fil: Gallagher, S.C.. Western University; Canadá
Fil: Green, Richard. University of Arizona; Estados Unidos
Fil: Lira, Paulina. Universidad de Chile; Chile
Fil: McLane, Jacob N.. University Of Wyoming; Estados Unidos
Fil: Plotkin, Richard M.. University of Nevada; Estados Unidos
Fil: Richards, Gordon T.. Drexel University; Estados Unidos
Fil: Runnoe, Jessie C.. Vanderbilt University; Estados Unidos
Fil: Schneider, Donald P.. Pennsylvania State University; Estados Unidos
Fil: Strauss, Michael A.. University of Princeton; Estados Unidos
Materia
QUASARS (1319)
SURVEYS (1671)
ACTIVE GALACTIC NUCLEI (16)
ASTROPHYSICS - ASTROPHYSICS OF GALAXIES
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/218055
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/218055
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Gemini Near Infrared Spectrograph-Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar RedshiftsMatthews, Brandon M.Dix, CooperShemmer, OhadBrotherton, Michael S.Myers, Adam D.Andruchow, IleanaBrandt, W. N.Gallagher, S.C.Green, RichardLira, PaulinaMcLane, Jacob N.Plotkin, Richard M.Richards, Gordon T.Runnoe, Jessie C.Schneider, Donald P.Strauss, Michael A.QUASARS (1319)SURVEYS (1671)ACTIVE GALACTIC NUCLEI (16)ASTROPHYSICS - ASTROPHYSICS OF GALAXIEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Quasars at z ≳ 1 most often have redshifts measured from rest-frame ultraviolet emission lines. One of the most common such lines, C iv λ1549, shows blueshifts up to ≈5000 km s-1 and in rare cases even higher. This blueshifting results in highly uncertain redshifts when compared to redshift determinations from rest-frame optical emission lines, e.g., from the narrow [O iii] λ5007 feature. We present spectroscopic measurements for 260 sources at 1.55 ≲ z ≲ 3.50 having -28.0 ≲ M i ≲ - 30.0 mag from the Gemini Near Infrared Spectrograph-Distant Quasar Survey (GNIRS-DQS) catalog, augmenting the previous iteration, which contained 226 of the 260 sources whose measurements are improved upon in this work. We obtain reliable systemic redshifts based on [O iii] λ5007 for a subset of 121 sources, which we use to calibrate prescriptions for correcting UV-based redshifts. These prescriptions are based on a regression analysis involving C iv full-width-at-half-maximum intensity and equivalent width, along with the UV continuum luminosity at a rest-frame wavelength of 1350 Å. Applying these corrections can improve the accuracy and the precision in the C iv-based redshift by up to ∼850 km s-1 and ∼150 km s-1, respectively, which correspond to ∼8.5 and ∼1.5 Mpc in comoving distance at z = 2.5. Our prescriptions also improve the accuracy of the best available multifeature redshift determination algorithm by ∼100 km s-1, indicating that the spectroscopic properties of the C iv emission line can provide robust redshift estimates for high-redshift quasars. We discuss the prospects of our prescriptions for cosmological and quasar studies utilizing upcoming large spectroscopic surveys.Fil: Matthews, Brandon M.. University of North Texas; Estados UnidosFil: Dix, Cooper. University of North Texas; Estados UnidosFil: Shemmer, Ohad. University of North Texas; Estados UnidosFil: Brotherton, Michael S.. University Of Wyoming; Estados UnidosFil: Myers, Adam D.. University Of Wyoming; Estados UnidosFil: Andruchow, Ileana. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Brandt, W. N.. Eberly College Of Science; Estados Unidos. Pennsylvania State University; Estados UnidosFil: Gallagher, S.C.. Western University; CanadáFil: Green, Richard. University of Arizona; Estados UnidosFil: Lira, Paulina. Universidad de Chile; ChileFil: McLane, Jacob N.. University Of Wyoming; Estados UnidosFil: Plotkin, Richard M.. University of Nevada; Estados UnidosFil: Richards, Gordon T.. Drexel University; Estados UnidosFil: Runnoe, Jessie C.. Vanderbilt University; Estados UnidosFil: Schneider, Donald P.. Pennsylvania State University; Estados UnidosFil: Strauss, Michael A.. University of Princeton; Estados UnidosIOP Publishing2023-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/218055Matthews, Brandon M.; Dix, Cooper; Shemmer, Ohad; Brotherton, Michael S.; Myers, Adam D.; et al.; Gemini Near Infrared Spectrograph-Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts; IOP Publishing; Astrophysical Journal; 950; 2; 6-2023; 1-150004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/acd04cinfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/acd04cinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:47:42Zoai:ri.conicet.gov.ar:11336/218055instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:47:43.177CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Gemini Near Infrared Spectrograph-Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts
title Gemini Near Infrared Spectrograph-Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts
spellingShingle Gemini Near Infrared Spectrograph-Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts
Matthews, Brandon M.
QUASARS (1319)
SURVEYS (1671)
ACTIVE GALACTIC NUCLEI (16)
ASTROPHYSICS - ASTROPHYSICS OF GALAXIES
title_short Gemini Near Infrared Spectrograph-Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts
title_full Gemini Near Infrared Spectrograph-Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts
title_fullStr Gemini Near Infrared Spectrograph-Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts
title_full_unstemmed Gemini Near Infrared Spectrograph-Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts
title_sort Gemini Near Infrared Spectrograph-Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts
dc.creator.none.fl_str_mv Matthews, Brandon M.
Dix, Cooper
Shemmer, Ohad
Brotherton, Michael S.
Myers, Adam D.
Andruchow, Ileana
Brandt, W. N.
Gallagher, S.C.
Green, Richard
Lira, Paulina
McLane, Jacob N.
Plotkin, Richard M.
Richards, Gordon T.
Runnoe, Jessie C.
Schneider, Donald P.
Strauss, Michael A.
author Matthews, Brandon M.
author_facet Matthews, Brandon M.
Dix, Cooper
Shemmer, Ohad
Brotherton, Michael S.
Myers, Adam D.
Andruchow, Ileana
Brandt, W. N.
Gallagher, S.C.
Green, Richard
Lira, Paulina
McLane, Jacob N.
Plotkin, Richard M.
Richards, Gordon T.
Runnoe, Jessie C.
Schneider, Donald P.
Strauss, Michael A.
author_role author
author2 Dix, Cooper
Shemmer, Ohad
Brotherton, Michael S.
Myers, Adam D.
Andruchow, Ileana
Brandt, W. N.
Gallagher, S.C.
Green, Richard
Lira, Paulina
McLane, Jacob N.
Plotkin, Richard M.
Richards, Gordon T.
Runnoe, Jessie C.
Schneider, Donald P.
Strauss, Michael A.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv QUASARS (1319)
SURVEYS (1671)
ACTIVE GALACTIC NUCLEI (16)
ASTROPHYSICS - ASTROPHYSICS OF GALAXIES
topic QUASARS (1319)
SURVEYS (1671)
ACTIVE GALACTIC NUCLEI (16)
ASTROPHYSICS - ASTROPHYSICS OF GALAXIES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Quasars at z ≳ 1 most often have redshifts measured from rest-frame ultraviolet emission lines. One of the most common such lines, C iv λ1549, shows blueshifts up to ≈5000 km s-1 and in rare cases even higher. This blueshifting results in highly uncertain redshifts when compared to redshift determinations from rest-frame optical emission lines, e.g., from the narrow [O iii] λ5007 feature. We present spectroscopic measurements for 260 sources at 1.55 ≲ z ≲ 3.50 having -28.0 ≲ M i ≲ - 30.0 mag from the Gemini Near Infrared Spectrograph-Distant Quasar Survey (GNIRS-DQS) catalog, augmenting the previous iteration, which contained 226 of the 260 sources whose measurements are improved upon in this work. We obtain reliable systemic redshifts based on [O iii] λ5007 for a subset of 121 sources, which we use to calibrate prescriptions for correcting UV-based redshifts. These prescriptions are based on a regression analysis involving C iv full-width-at-half-maximum intensity and equivalent width, along with the UV continuum luminosity at a rest-frame wavelength of 1350 Å. Applying these corrections can improve the accuracy and the precision in the C iv-based redshift by up to ∼850 km s-1 and ∼150 km s-1, respectively, which correspond to ∼8.5 and ∼1.5 Mpc in comoving distance at z = 2.5. Our prescriptions also improve the accuracy of the best available multifeature redshift determination algorithm by ∼100 km s-1, indicating that the spectroscopic properties of the C iv emission line can provide robust redshift estimates for high-redshift quasars. We discuss the prospects of our prescriptions for cosmological and quasar studies utilizing upcoming large spectroscopic surveys.
Fil: Matthews, Brandon M.. University of North Texas; Estados Unidos
Fil: Dix, Cooper. University of North Texas; Estados Unidos
Fil: Shemmer, Ohad. University of North Texas; Estados Unidos
Fil: Brotherton, Michael S.. University Of Wyoming; Estados Unidos
Fil: Myers, Adam D.. University Of Wyoming; Estados Unidos
Fil: Andruchow, Ileana. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Brandt, W. N.. Eberly College Of Science; Estados Unidos. Pennsylvania State University; Estados Unidos
Fil: Gallagher, S.C.. Western University; Canadá
Fil: Green, Richard. University of Arizona; Estados Unidos
Fil: Lira, Paulina. Universidad de Chile; Chile
Fil: McLane, Jacob N.. University Of Wyoming; Estados Unidos
Fil: Plotkin, Richard M.. University of Nevada; Estados Unidos
Fil: Richards, Gordon T.. Drexel University; Estados Unidos
Fil: Runnoe, Jessie C.. Vanderbilt University; Estados Unidos
Fil: Schneider, Donald P.. Pennsylvania State University; Estados Unidos
Fil: Strauss, Michael A.. University of Princeton; Estados Unidos
description Quasars at z ≳ 1 most often have redshifts measured from rest-frame ultraviolet emission lines. One of the most common such lines, C iv λ1549, shows blueshifts up to ≈5000 km s-1 and in rare cases even higher. This blueshifting results in highly uncertain redshifts when compared to redshift determinations from rest-frame optical emission lines, e.g., from the narrow [O iii] λ5007 feature. We present spectroscopic measurements for 260 sources at 1.55 ≲ z ≲ 3.50 having -28.0 ≲ M i ≲ - 30.0 mag from the Gemini Near Infrared Spectrograph-Distant Quasar Survey (GNIRS-DQS) catalog, augmenting the previous iteration, which contained 226 of the 260 sources whose measurements are improved upon in this work. We obtain reliable systemic redshifts based on [O iii] λ5007 for a subset of 121 sources, which we use to calibrate prescriptions for correcting UV-based redshifts. These prescriptions are based on a regression analysis involving C iv full-width-at-half-maximum intensity and equivalent width, along with the UV continuum luminosity at a rest-frame wavelength of 1350 Å. Applying these corrections can improve the accuracy and the precision in the C iv-based redshift by up to ∼850 km s-1 and ∼150 km s-1, respectively, which correspond to ∼8.5 and ∼1.5 Mpc in comoving distance at z = 2.5. Our prescriptions also improve the accuracy of the best available multifeature redshift determination algorithm by ∼100 km s-1, indicating that the spectroscopic properties of the C iv emission line can provide robust redshift estimates for high-redshift quasars. We discuss the prospects of our prescriptions for cosmological and quasar studies utilizing upcoming large spectroscopic surveys.
publishDate 2023
dc.date.none.fl_str_mv 2023-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/218055
Matthews, Brandon M.; Dix, Cooper; Shemmer, Ohad; Brotherton, Michael S.; Myers, Adam D.; et al.; Gemini Near Infrared Spectrograph-Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts; IOP Publishing; Astrophysical Journal; 950; 2; 6-2023; 1-15
0004-637X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/218055
identifier_str_mv Matthews, Brandon M.; Dix, Cooper; Shemmer, Ohad; Brotherton, Michael S.; Myers, Adam D.; et al.; Gemini Near Infrared Spectrograph-Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts; IOP Publishing; Astrophysical Journal; 950; 2; 6-2023; 1-15
0004-637X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/acd04c
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/acd04c
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.069144

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