SDSS-IV eBOSS Spectroscopy of X-Ray and WISE AGNs in Stripe 82X: Overview of the Demographics of X-Ray- and Mid-infrared-selected Active Galactic Nuclei

被引：39

作者：

LaMassa, Stephanie M. ^{[1
]}

Georgakakis, Antonis ^{[2
]}

Vivek, M. ^{[3
,4
]}

Salvato, Mara ^{[5
]}

Ananna, Tonima Tasnim ^{[6
,7
]}

Urry, C. Meg ^{[6
,7
]}

MacLeod, Chelsea ^{[8
]}

Ross, Nicholas ^{[9
]}

机构：

[1] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21210 USA

[2] Natl Observ Athens, Vas Pavlou & I Metaxa, Penteli 15236, Greece

[3] Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA

[4] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA

[5] Max Planck Inst Extraterr Phys, Garching, Germany

[6] Yale Univ, Dept Phys, POB 201820, New Haven, CT 06520 USA

[7] Yale Ctr Astron & Astrophys, POB 208121, New Haven, CT 06520 USA

[8] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02183 USA

[9] Univ Edinburgh, Inst Astron, Royal Observ, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland

来源：

ASTROPHYSICAL JOURNAL | 2019年 / 876卷 / 01期

基金：

美国安德鲁·梅隆基金会;

关键词：

catalogs; galaxies: active; surveys; WIDE-FIELD SURVEY; DIGITAL SKY SURVEY; XMM-NEWTON; COSMOS FIELD; MULTIWAVELENGTH PROPERTIES; MIDINFRARED PROPERTIES; EMISSION; GALAXIES; SAMPLE; IDENTIFICATION;

D O I：

10.3847/1538-4357/ab108b

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the results of a Sloan Digital Sky Survey IV eBOSS program to target X-ray sources and mid-infraredselected Wide-field Infrared Survey Explorer (WISE) active galactic nucleus (AGN) candidates in a 36.8 deg(2) region of Stripe 82. About half this survey (15.6 deg(2)) covers the largest contiguous portion of the Stripe 82 X-ray survey. This program represents the largest spectroscopic survey of AGN candidates selected solely by their WISE colors. We combine this sample with X-ray and WISE AGNs in the field identified via other sources of spectroscopy, producing a catalog of 4847 sources that is 82% complete to r similar to 22. Based on X-ray luminosities or WISE colors, 4730 of these sources are AGNs, with a median sample redshift of z similar to 1. About 30% of the AGNs are optically obscured (i.e., lack broad lines in their optical spectra). BPT analysis, however, indicates that 50% of the WISE AGNs at z < 0.5 have emission line ratios consistent with star-forming galaxies, so whether they are buried AGNs or star-forming galaxy contaminants is currently unclear. We find that 61% of X-ray AGNs are not selected as mid-infrared AGNs, with 22% of X-ray AGNs undetected by WISE. Most of these latter AGNs have high X-ray luminosities (L-x > 10(44) erg s(-1)), indicating that mid-infrared selection misses a sizable fraction of the highest luminosity AGNs, as well as lower luminosity sources where AGN-heated dust is not dominating the midinfrared emission. Conversely, similar to 58% of WISE AGNs are undetected by X-rays, though we do not find that they are preferentially redder than the X-ray-detected WISE AGNs.

引用

页数：19

共 116 条

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共 116 条

[1] THE SEVENTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEY [J].

Abazajian, Kevork N. ;

Adelman-McCarthy, Jennifer K. ;

Agueros, Marcel A. ;

Allam, Sahar S. ;

Prieto, Carlos Allende ;

An, Deokkeun ;

Anderson, Kurt S. J. ;

Anderson, Scott F. ;

Annis, James ;

Bahcall, Neta A. ;

Bailer-Jones, C. A. L. ;

Barentine, J. C. ;

Bassett, Bruce A. ;

Becker, Andrew C. ;

Beers, Timothy C. ;

Bell, Eric F. ;

Belokurov, Vasily ;

Berlind, Andreas A. ;

Berman, Eileen F. ;

Bernardi, Mariangela ;

Bickerton, Steven J. ;

Bizyaev, Dmitry ;

Blakeslee, John P. ;

Blanton, Michael R. ;

Bochanski, John J. ;

Boroski, William N. ;

Brewington, Howard J. ;

Brinchmann, Jarle ;

Brinkmann, J. ;

Brunner, Robert J. ;

Budavari, Tamas ;

Carey, Larry N. ;

Carliles, Samuel ;

Carr, Michael A. ;

Castander, Francisco J. ;

Cinabro, David ;

Connolly, A. J. ;

Csabai, Istvan ;

Cunha, Carlos E. ;

Czarapata, Paul C. ;

Davenport, James R. A. ;

de Haas, Ernst ;

Dilday, Ben ;

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Eisenstein, Daniel J. ;

Evans, Michael L. ;

Evans, N. W. ;

Fan, Xiaohui ;

Friedman, Scott D. ;

Frieman, Joshua A. .

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Abolfathi, Bela ;

Aguado, D. S. ;

Aguilar, Gabriela ;

Prieto, Carlos Allende ;

Almeida, Andres ;

Ananna, Tonima Tasnim ;

Anders, Friedrich ;

Anderson, Scott F. ;

Andrews, Brett H. ;

Anguiano, Borja ;

Aragon-Salamanca, Alfonso ;

Argudo-Fernandez, Maria ;

Armengaud, Eric ;

Ata, Metin ;

Aubourg, Eric ;

Avila-Reese, Vladimir ;

Badenes, Carles ;

Bailey, Stephen ;

Balland, Christophe ;

Barger, Kathleen A. ;

Barrera-Ballesteros, Jorge ;

Bartosz, Curtis ;

Bastien, Fabienne ;

Bates, Dominic ;

Baumgarten, Falk ;

Bautista, Julian ;

Beaton, Rachael ;

Beers, Timothy C. ;

Belfiore, Francesco ;

Bender, Chad F. ;

Bernardi, Mariangela ;

Bershady, Matthew A. ;

Beutler, Florian ;

Bird, Jonathan C. ;

Bizyaev, Dmitry ;

Blanc, Guillermo A. ;

Blanton, Michael R. ;

Blomqvist, Michael ;

Bolton, Adam S. ;

Boquien, Mederic ;

Borissova, Jura ;

Bovy, Jo ;

Diaz, Christian Andres Bradna ;

Brandt, William Nielsen ;

Brinkmann, Jonathan ;

Brownstein, Joel R. ;

Bundy, Kevin ;

Burgasser, Adam J. ;

Burtin, Etienne ;

Busca, Nicolas G. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2018, 235 (02)

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Atrio-Barandela, F. ;

Aumont, J. ;

Baccigalupi, C. ;

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Barreiro, R. B. ;

Bartlett, J. G. ;

Battaner, E. ;

Benabed, K. ;

Benoit, A. ;

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Bersanelli, M. ;

Bielewicz, P. ;

Bobin, J. ;

Bock, J. J. ;

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Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Bridges, M. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

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Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

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Chen, X. ;

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Church, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. ;

Couchot, F. ;

Coulais, A. ;

Crill, B. P. ;

Curto, A. ;

Cuttaia, F. ;

Danese, L. ;

Davies, R. D. .

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Bickerton, Steven J. ;

Bizyaev, Dmitry ;

Blanton, Michael R. ;

Bochanski, John J. ;

Bolton, Adam S. ;

Bovy, Jo ;

Brandt, W. N. ;

Brinkmann, J. ;

Brown, Peter J. ;

Brownstein, Joel R. ;

Busca, Nicolas G. ;

Campbell, Heather ;

Carr, Michael A. ;

Chen, Yanmei ;

Chiappini, Cristina ;

Comparat, Johan ;

Connolly, Natalia ;

Cortes, Marina ;

Croft, Rupert A. C. ;

Cuesta, Antonio J. ;

da Costa, Luiz N. ;

Davenport, James R. A. ;

Dawson, Kyle ;

Dhital, Saurav ;

Ealet, Anne ;

Ebelke, Garrett L. ;

Edmondson, Edward M. ;

Eisenstein, Daniel J. ;

Escoffier, Stephanie ;

Esposito, Massimiliano ;

Evans, Michael L. ;

Fan, Xiaohui ;

Femenia Castella, Bruno ;

Font-Ribera, Andreu ;

Frinchaboy, Peter M. ;

Ge, Jian ;

Gillespie, Bruce A. ;

Gilmore, G. ;

Gonzalez Hernandez, Jonay I. ;

Gott, J. Richard ;

Gould, Andrew ;

Grebel, Eva K. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2011, 193 (02)

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Alam, Shadab ;

Albareti, Franco D. ;

Allende Prieto, Carlos ;

Anders, F. ;

Anderson, Scott F. ;

Anderton, Timothy ;

Andrews, Brett H. ;

Armengaud, Eric ;

Aubourg, Eric ;

Bailey, Stephen ;

Basu, Sarbani ;

Bautista, Julian E. ;

Beaton, Rachael L. ;

Beers, Timothy C. ;

Bender, Chad F. ;

Berlind, Andreas A. ;

Beutler, Florian ;

Bhardwaj, Vaishali ;

Bird, Jonathan C. ;

Bizyaev, Dmitry ;

Blake, Cullen H. ;

Blanton, Michael R. ;

Blomqvist, Michael ;

Bochanski, John J. ;

Bolton, Adam S. ;

Bovy, Jo ;

Bradley, A. Shelden ;

Brandt, W. N. ;

Brauer, D. E. ;

Brinkmann, J. ;

Brown, Peter J. ;

Brownstein, Joel R. ;

Burden, Angela ;

Burtin, Etienne ;

Busca, Nicolas G. ;

Cai, Zheng ;

Capozzi, Diego ;

Rosell, Aurelio Carnero ;

Carr, Michael A. ;

Carrera, Ricardo ;

Chambers, K. C. ;

Chaplin, William James ;

Chen, Yen-Chi ;

Chiappini, Cristina ;

Chojnowski, S. Drew ;

Chuang, Chia-Hsun ;

Clerc, Nicolas ;

Comparat, Johan ;

Covey, Kevin ;

Croft, Rupert A. C. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2015, 219 (01)

[6] The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory [J].

Albareti, Franco D. ;

Allende Prieto, Carlos ;

Almeida, Andres ;

Anders, Friedrich ;

Anderson, Scott ;

Andrews, Brett H. ;

Aragon-Salamanca, Alfonso ;

Argudo-Fernandez, Maria ;

Armengaud, Eric ;

Aubourg, Eric ;

Avila-Reese, Vladimir ;

Badenes, Carles ;

Bailey, Stephen ;

Barbuy, Beatriz ;

Barger, Kat ;

Barrera-Ballesteros, Jorge ;

Bartosz, Curtis ;

Basu, Sarbani ;

Bates, Dominic ;

Battaglia, Giuseppina ;

Baumgarten, Falk ;

Baur, Julien ;

Bautista, Julian ;

Beers, Timothy C. ;

Belfiore, Francesco ;

Bershady, Matthew ;

Bertran de Lis, Sara ;

Bird, Jonathan C. ;

Bizyaev, Dmitry ;

Blanc, Guillermo A. ;

Blanton, Michael ;

Blomqvist, Michael ;

Bolton, Adam S. ;

Borissova, J. ;

Bovy, Jo ;

Brandt, William Nielsen ;

Brinkmann, Jonathan ;

Brownstein, Joel R. ;

Bundy, Kevin ;

Burtin, Etienne ;

Busca, Nicolas G. ;

Camacho Chavez, Hugo Orlando ;

Diaz, M. Cano ;

Cappellari, Michele ;

Carrera, Ricardo ;

Chen, Yanping ;

Cherinka, Brian ;

Cheung, Edmond ;

Chiappini, Cristina ;

Chojnowski, Drew .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2017, 233 (02)

[7] The Chandra Deep Field North survey. XIII. 2 Ms point-source catalogs [J].

Alexander, DM ;

Bauer, FE ;

Brandt, WN ;

Schneider, DP ;

Hornschemeier, AE ;

Vignali, C ;

Barger, AJ ;

Broos, PS ;

Cowie, LL ;

Garmire, GP ;

Townsley, LK ;

Bautz, MW ;

Chartas, G ;

Sargent, WLW .

ASTRONOMICAL JOURNAL, 2003, 126 (02) :539-574

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