Optical Spectra of Candidate International Celestial Reference Frame (ICRF) Flat-spectrum Radio Sources. III

被引：5

作者：

Titov, O. ^{[1
]}

Pursimo, T. ^{[2
]}

Johnston, Helen M. ^{[3
]}

Stanford, Laura M. ^{[1
]}

Hunstead, Richard W. ^{[3
]}

Jauncey, David L. ^{[4
]}

Zenere, Katrina A. ^{[5
]}

机构：

[1] Geosci Australia, POB 378, Canberra, ACT 2601, Australia

[2] Nord Opt Telescope, Nord Opt Telescope Apartado 474E-38700, Santa Cruz De La Palma, Santa Cruz De T, Spain

[3] Univ Sydney, Sydney Inst Astron, Sch Phys, Sydney, NSW 2006, Australia

[4] CSIRO Astron & Space Sci, ATNF & Mt Stromlo Observ, Cotter Rd, Weston, ACT 2611, Australia

[5] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia

来源：

ASTRONOMICAL JOURNAL | 2017年 / 153卷 / 04期

基金：

美国安德鲁·梅隆基金会; 美国国家科学基金会;

关键词：

BL Lacertae objects: general; galaxies: active; quasars: emission lines; radio continuum: general; reference systems; KILOMETER ARRAY PATHFINDER; BASE-LINE INTERFEROMETRY; DIGITAL-SKY-SURVEY; PROPER MOTIONS; ASTROMETRY; ABSORPTION; GALAXY;

D O I：

10.3847/1538-3881/aa61fd

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In extending our spectroscopic program, which targets sources drawn from the International Celestial Reference Frame ( ICRF) Catalog, we have obtained spectra for similar to 160 compact, flat-spectrum radio sources and determined redshifts for 112 quasars and radio galaxies. A further 14 sources with featureless spectra have been classified as BL Lac objects. Spectra were obtained at three telescopes: the 3.58m European Southern Observatory New Technology Telescope, and the two 8.2m Gemini telescopes in Hawaii and Chile. While most of the sources are powerful quasars, a significant fraction of radio galaxies is also included from the list of non-defining ICRF radio sources.

引用

页数：8

共 6 条

[1] OPTICAL SPECTRA OF CANDIDATE INTERNATIONAL CELESTIAL REFERENCE FRAME (ICRF) FLAT-SPECTRUM RADIO SOURCES
Titov, O.
Stanford, Laura M.
Johnston, Helen M.
Pursimo, T.
Hunstead, Richard W.
Jauncey, David L.
Maslennikov, K.
Boldycheva, A.
ASTRONOMICAL JOURNAL, 2013, 146 (01)
[2] OPTICAL SPECTRA OF CANDIDATE SOUTHERN HEMISPHERE INTERNATIONAL CELESTIAL REFERENCE FRAME (ICRF) RADIO SOURCES
Titov, O.
Jauncey, D. L.
Johnston, H. M.
Hunstead, R. W.
Christensen, L.
ASTRONOMICAL JOURNAL, 2011, 142 (05)
[3] A pattern of noncoincidence between radio and optical positions of International Celestial Reference Frame sources
Neto, DND
Andrei, AH
Martins, RV
Assafin, M
ASTRONOMICAL JOURNAL, 2002, 124 (01) : 612 - 618
[4] Optical monitoring of extragalactic sources for linking the ICRF and the future Gaia celestial reference frame I. Variability of ICRF sources
Taris, F.
Andrei, A.
Klotz, A.
Vachier, F.
Cote, R.
Bouquillon, S.
Souchay, J.
Lambert, S.
Anton, S.
Bourda, G.
Coward, D.
ASTRONOMY & ASTROPHYSICS, 2013, 552
[5] VLBA observations of radio reference frame sources. III. Astrometric suitability of an additional 225 sources
Fey, AL
Charlot, P
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2000, 128 (01) : 17 - 83
[6] Automated optical identification of a large complete northern hemisphere sample of flat-spectrum radio sources with S6cm > 200 mJy
Snellen, IAG
McMahon, RG
Hook, IM
Browne, IWA
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2002, 329 (04) : 700 - 746

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