2016MNRAS.456.1948S

Query : 2016MNRAS.456.1948S

2016MNRAS.456.1948S - Mon. Not. R. Astron. Soc., 456, 1948-1954 (2016/February-3)

Discovery of the optically bright, wide separation double quasar SDSS J1442+4055.

SERGEYEV A.V., ZHELEZNYAK A.P., SHALYAPIN V.N. and GOICOECHEA L.J.

Abstract (from CDS):

Optically bright, wide separation double (gravitationally lensed) quasars can be easily monitored, leading to light curves of great importance in determining the Hubble constant and other cosmological parameters, as well as the structure of active nuclei and haloes of galaxies. Searching for new double quasars in the Sloan Digital Sky Survey III (SDSS-III) data base, we discovered SDSS J1442+4055. This consists of two bright images (r ∼ 18-19) of the same distant quasar at z = 2.575. The two quasar images are separated by ∼ 2^′′_.1, show significant parallel flux variations and can be monitored from late 2015. We also found other two double quasar candidates, SDSS J1617+3827 (z = 2.079) and SDSS J1642+3200 (z = 2.264), displaying evidence for the presence of a lensing object and parallel flux variations, but requiring further spectroscopic observations to be confirmed as lensed quasars.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): gravitational lensing: strong - methods: data analysis - methods: observational - quasars: general

Nomenclature: Fig. 1, Table 1: [SZS2016] {SDSS} JHHMM+DDMM A (Nos A to B) N=17 pairs. Fig. 2: [SZS2016] {SDSS} JHHMM+DDMM R N=3. Fig.4: [SZS2016] {SDSS} J1442+4055 GN (Nos G1 to G2) N=2.

Status at CDS : Acronym for new objects described in the dictionary of nomenclature and being created in SIMBAD.

Simbad objects: 22

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Number of rows : 22
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 [VV2006] J073406.8+273355 QSO 07 34 06.7495116936 +27 33 55.607728716   17.43 17.17     ~ 36 0
2 SDSS J073534.58+203634.1 QSO 07 35 34.5867134664 +20 36 34.251054336           ~ 10 0
3 SDSS J075519.94+140041.9 QSO 07 55 19.9432236072 +14 00 42.042341448           ~ 9 0
4 SDSS J075520.08+140041.5 ? 07 55 20.088 +14 00 41.52           ~ 1 0
5 [VV2006] J123903.3+444701 QSO 12 39 03.3096 +44 47 01.354   21.30 20.67     ~ 16 0
6 SDSS J141004.39+234054.9 QSO 14 10 04.3972468200 +23 40 54.824345004           ~ 7 0
7 SDSS J144254.60+405535.0 QSO 14 42 54.6000656040 +40 55 34.968719748           ~ 6 0
8 SDSS J144254.78+405535.5 QSO 14 42 54.7814350512 +40 55 35.527973844           ~ 19 0
9 [MOK2016] SDSS J1442+4055 gLS 14 42 54.79 +40 55 35.6           ~ 10 0
10 SDSS J152314.75+122010.7 QSO 15 23 14.7609033936 +12 20 10.710679272           ~ 8 0
11 SDSS J152631.31+015103.2 QSO 15 26 31.311 +01 51 03.24   19.82 19.51     ~ 9 0
12 SDSS J155411.53+261635.7 QSO 15 54 11.5308086976 +26 16 35.714794404   19.85 19.45     ~ 24 0
13 SDSS J160014.58+102852.3 QSO 16 00 14.582 +10 28 52.39   19.92 19.64     ~ 11 0
14 SDSS J161752.87+382739.0 LeQ 16 17 52.87008 +38 27 39.0924           ~ 2 0
15 [VV2006] J161752.9+382737 QSO 16 17 52.9233681000 +38 27 37.100994912   19.47 19.27     ~ 29 0
16 SDSS J161930.85+162122.7 QSO 16 19 30.8603015472 +16 21 22.654286100           ~ 11 0
17 [VV2006] J164251.1+320028 QSO 16 42 51.0775947888 +32 00 29.198150604   18.69 18.52     ~ 31 0
18 SDSS J164251.15+320031.9 AGN 16 42 51.15576 +32 00 31.9248           ~ 3 0
19 [VV2006] J164858.3+340100 QSO 16 48 58.3615514424 +34 00 59.950276560   18.17 17.97     ~ 29 0
20 QSO J1655+1948 QSO 16 55 43.5675547824 +19 48 47.110433940     16.60     ~ 27 1
21 SDSS J205333.01-010058.4 QSO 20 53 33.018 -01 00 58.41   19.72 19.53     ~ 15 0
22 SDSS J215316.28+273234.8 QSO 21 53 16.2824673768 +27 32 34.877504508           ~ 11 0

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