NEAR-INFRARED SPECTRA AND INTRINSIC LUMINOSITIES OF CANDIDATE TYPE II QUASARS AT 2 < z < 3.4

被引：21

作者：

Greene, Jenny E. ^{[1
]}

Alexandroff, Rachael ^{[2
]}

Strauss, Michael A. ^{[1
]}

Zakamska, Nadia L. ^{[2
]}

Lang, Dustin ^{[3
]}

Liu, Guilin ^{[2
]}

Pattarakijwanich, Petchara ^{[1
]}

Hamann, Frederick ^{[4
]}

Ross, Nicholas P. ^{[5
]}

Myers, Adam D. ^{[6
]}

Brandt, W. Niel ^{[7
,8
]}

York, Donald ^{[9
,10
]}

Schneider, Donald P. ^{[7
,8
]}

机构：

[1] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[2] Johns Hopkins Univ, Dept Phys & Astron, Ctr Astrophys Sci, Baltimore, MD 21218 USA

[3] Carnegie Mellon Univ, Dept Phys, McWilliams Ctr Cosmol, Pittsburgh, PA 15213 USA

[4] Univ Florida, Dept Astron, Gainesville, FL 32611 USA

[5] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA

[6] Univ Wyoming, Dept Phys & Astron, Laramie, WY 82071 USA

[7] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

[8] Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA

[9] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA

[10] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

来源：

ASTROPHYSICAL JOURNAL | 2014年 / 788卷 / 01期

基金：

美国国家科学基金会; 美国安德鲁·梅隆基金会;

关键词：

quasars: emission lines; quasars: general; quasars: supermassive black holes; ACTIVE GALACTIC NUCLEI; DIGITAL-SKY-SURVEY; BLACK-HOLE MASSES; OSCILLATION SPECTROSCOPIC SURVEY; AGN MONITORING PROJECT; EMISSION-LINE LUMINOSITY; RADIO-QUIET QUASARS; XMM DEEP SURVEY; HOST GALAXIES; DATA RELEASE;

D O I：

10.1088/0004-637X/788/1/91

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present JHK near-infrared (NIR) spectroscopy of 25 candidate Type II quasars selected from the Sloan Digital Sky Survey (SDSS), using Triplespec on the Apache Point Observatory 3.5 m telescope, the Folded-port InfraRed Echellette at the Magellan/Baade 6.5 m telescope, and the Gemini Near-Infrared Spectrograph on Gemini. At redshifts of 2 < z < 3.4, our NIR spectra probe the rest-frame optical region of these targets, which were initially selected to have strong lines of Civ and Ly alpha, with FWHM < 2000 km s(-1) from the SDSS pipeline. We use the [O III] lambda 5007 line shape as a model for the narrow-line region emission and find that Ha consistently requires a broad component with FWHMs ranging from 1000 to 7500 km s(-1). Interestingly, the Civ lines also require broad bases, but with considerably narrower widths of 1000-4500 km s(-1). Estimating the extinction using the Balmer decrement and also the relationship in lower-z quasars between rest equivalent width and luminosity in the [Oiii] line, we find typical AV values of 0-2 mag, which naturally explains the attenuated C iv lines relative to Ha. We propose that our targets are moderately obscured quasars. We also describe one unusual object with three distinct velocity peaks in its [O III] spectrum.

引用

页数：18

共 156 条

[1] THE NINTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEY: FIRST SPECTROSCOPIC DATA FROM THE SDSS-III BARYON OSCILLATION SPECTROSCOPIC SURVEY [J].

Ahn, Christopher P. ;

Alexandroff, Rachael ;

Prieto, Carlos Allende ;

Anderson, Scott F. ;

Anderton, Timothy ;

Andrews, Brett H. ;

Aubourg, Eric ;

Bailey, Stephen ;

Balbinot, Eduardo ;

Barnes, Rory ;

Bautista, Julian ;

Beers, Timothy C. ;

Beifiori, Alessandra ;

Berlind, Andreas A. ;

Bhardwaj, Vaishali ;

Bizyaev, Dmitry ;

Blake, Cullen H. ;

Blanton, Michael R. ;

Blomqvist, Michael ;

Bochanski, John J. ;

Bolton, Adam S. ;

Borde, Arnaud ;

Bovy, Jo ;

Brandt, W. N. ;

Brinkmann, J. ;

Brown, Peter J. ;

Brownstein, Joel R. ;

Bundy, Kevin ;

Busca, N. G. ;

Carithers, William ;

Carnero, Aurelio R. ;

Carr, Michael A. ;

Casetti-Dinescu, Dana I. ;

Chen, Yanmei ;

Chiappini, Cristina ;

Comparat, Johan ;

Connolly, Natalia ;

Crepp, Justin R. ;

Cristiani, Stefano ;

Croft, Rupert A. C. ;

Cuesta, Antonio J. ;

da Costa, Luiz N. ;

Davenport, James R. A. ;

Dawson, Kyle S. ;

de Putter, Roland ;

De Lee, Nathan ;

Delubac, Timothee ;

Dhital, Saurav ;

Ealet, Anne ;

Ebelke, Garrett L. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2012, 203 (02)

[2] Candidate type II quasars at 2 < z < 4.3 in the Sloan Digital Sky Survey III [J].

Alexandroff, Rachael ;

Strauss, Michael A. ;

Greene, Jenny E. ;

Zakamska, Nadia L. ;

Ross, Nicholas P. ;

Brandt, W. N. ;

Liu, Guilin ;

Smith, Paul S. ;

Ge, Jian ;

Hamann, Fred ;

Myers, Adam D. ;

Petitjean, Patrick ;

Schneider, Donald P. ;

Yesuf, Hassen ;

York, Donald G. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2013, 435 (04) :3306-3325

[3]

ALMAINI O, 1995, MON NOT R ASTRON SOC, V277, pL31

[4] UNIFIED MODELS FOR ACTIVE GALACTIC NUCLEI AND QUASARS [J].

ANTONUCCI, R .

ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, 1993, 31 :473-521

[5] SPECTROPOLARIMETRY AND THE NATURE OF NGC-1068 [J].

ANTONUCCI, RRJ ;

MILLER, JS .

ASTROPHYSICAL JOURNAL, 1985, 297 (02) :621-632

[6] MID-INFRARED SELECTION OF ACTIVE GALACTIC NUCLEI WITH THE WIDE-FIELD INFRARED SURVEY EXPLORER. II. PROPERTIES OF WISE-SELECTED ACTIVE GALACTIC NUCLEI IN THE NDWFS BOOTES FIELD [J].

Assef, R. J. ;

Stern, D. ;

Kochanek, C. S. ;

Blain, A. W. ;

Brodwin, M. ;

Brown, M. J. I. ;

Donoso, E. ;

Eisenhardt, P. R. M. ;

Jannuzi, B. T. ;

Jarrett, T. H. ;

Stanford, S. A. ;

Tsai, C. -W. ;

Wu, J. ;

Yan, L. .

ASTROPHYSICAL JOURNAL, 2013, 772 (01)

[7] BLACK HOLE MASS ESTIMATES BASED ON CIV ARE CONSISTENT WITH THOSE BASED ON THE BALMER LINES [J].

Assef, R. J. ;

Denney, K. D. ;

Kochanek, C. S. ;

Peterson, B. M. ;

Kozeowski, S. ;

Ageorges, N. ;

Barrows, R. S. ;

Buschkamp, P. ;

Dietrich, M. ;

Falco, E. ;

Feiz, C. ;

Gemperlein, H. ;

Germeroth, A. ;

Grier, C. J. ;

Hofmann, R. ;

Juette, M. ;

Khan, R. ;

Kilic, M. ;

Knierim, V. ;

Laun, W. ;

Lederer, R. ;

Lehmitz, M. ;

Lenzen, R. ;

Mall, U. ;

Madsen, K. K. ;

Mandel, H. ;

Martini, P. ;

Mathur, S. ;

Mogren, K. ;

Mueller, P. ;

Naranjo, V. ;

Pasquali, A. ;

Polsterer, K. ;

Pogge, R. W. ;

Quirrenbach, A. ;

Seifert, W. ;

Stern, D. ;

Shappee, B. ;

Storz, C. ;

Van Saders, J. ;

Weiser, P. ;

Zhang, D. .

ASTROPHYSICAL JOURNAL, 2011, 742 (02)

[8] Hyperluminous reddened broad-line quasars at z ∼ 2 from the VISTA Hemisphere Survey and WISE all-sky survey [J].

Banerji, Manda ;

McMahon, Richard G. ;

Hewett, Paul C. ;

Gonzalez-Solares, Eduardo ;

Koposov, Sergey E. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2013, 429 (01) :L55-L59

[9] Heavily reddened quasars at z ∼ 2 in the UKIDSS Large Area Survey: a transitional phase in AGN evolution [J].

Banerji, Manda ;

McMahon, Richard G. ;

Hewett, Paul C. ;

Alaghband-Zadeh, Susannah ;

Gonzalez-Solares, Eduardo ;

Venemans, Bram P. ;

Hawthorn, Melanie J. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2012, 427 (03) :2275-2291

[10] Optical and infrared properties of the 2 Ms Chandra Deep Field North X-ray sources [J].

Barger, AJ ;

Cowie, LL ;

Capak, P ;

Alexander, DM ;

Bauer, FE ;

Fernandez, E ;

Brandt, WN ;

Garmire, GP ;

Hornschemeier, AE .

ASTRONOMICAL JOURNAL, 2003, 126 (02) :632-665

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NEAR-INFRARED SPECTRA AND INTRINSIC LUMINOSITIES OF CANDIDATE TYPE II QUASARS AT 2 &lt; z &lt; 3.4

NEAR-INFRARED SPECTRA AND INTRINSIC LUMINOSITIES OF CANDIDATE TYPE II QUASARS AT 2 < z < 3.4