2021ApJ...921...42S

Query : 2021ApJ...921...42S

2021ApJ...921...42S - Astrophys. J., 921, 42-42 (2021/November-1)

Gaia GraL: Gaia DR2 Gravitational lens systems. VI. Spectroscopic confirmation and modeling of quadruply imaged lensed quasars.

STERN D., DJORGOVSKI S.G., KRONE-MARTINS A., SLUSE D., DELCHAMBRE L., DUCOURANT C., TEIXEIRA R., SURDEJ J., BOEHM C., DEN BROK J., DOBIE D., DRAKE A., GALLUCCIO L., GRAHAM M.J., JALAN P., KLUTER J., LE CAMPION J.-F., MAHABAL A., MIGNARD F., MURPHY T., NIERENBERG A., SCARANO S.Jr, SIMON J., SLEZAK E., SPINDOLA-DUARTE C. and WAMBSGANSS J.

Abstract (from CDS):

Combining the exquisite angular resolution of Gaia with optical light curves and WISE photometry, the Gaia Gravitational Lenses group (GraL) uses machine-learning techniques to identify candidate strongly lensed quasars, and has confirmed over two dozen new strongly lensed quasars from the Gaia Data Release 2. This paper reports on the 12 quadruply imaged quasars identified by this effort to date, which is a ∼20% increase in the total number of confirmed quadruply imaged quasars. We discuss the candidate selection, spectroscopic follow-up, and lens modeling. We also report our spectroscopic failures as an aid for future investigations.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Strong gravitational lensing - Quasars

VizieR on-line data: <Available at CDS (J/ApJ/921/42): table2.dat table6.dat>

Nomenclature: Fig. 1, Table 2, Section 5: [SDK2021] GraL JHHMMSS.s+DDMMSS N=12+6. Fig. 1, Table 2: [SDK2021] GraL JHHMMSS.s+DDMMSS source N=12.

Simbad objects: 37

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Number of rows : 37
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 [SDK2021] GraL J024848.7+191331 source QSO 02 48 48.7 +19 13 31           ~ 2 0
2 [DKW2019] 25 gLS 02 48 48.743 +19 13 30.50           ~ 10 0
3 [DKW2019] 8 LS? 05 30 36.995 -37 30 11.04           ~ 5 0
4 [SDK2021] GraL J060400.6+095545 gLS 06 04 00.6 +09 55 45           ~ 1 0
5 [SDK2021] GraL J060710.8-215217 source QSO 06 07 10.8 -21 52 17           ~ 2 0
6 [SDK2021] GraL J060710.8-215217 gLS 06 07 10.8 -21 52 17           ~ 3 0
7 [SDK2021] GraL J060841.4+422937 gLS 06 08 41.4 +42 29 37           ~ 3 0
8 [SDK2021] GraL J060841.4+422937 source QSO 06 08 41.4 +42 29 37           ~ 1 0
9 [SDK2021] GraL J065904.1+162909 source QSO 06 59 04.1 +16 29 09           ~ 3 0
10 [SDK2021] GraL J065904.1+162909 gLS 06 59 04.1 +16 29 09           ~ 13 0
11 [SDK2021] GraL J070006.6+121442 gLS 07 00 06.6 +12 14 42           ~ 1 0
12 [SDK2021] GraL J071823.4+294431 gLS 07 18 23.4 +29 44 31           ~ 1 0
13 [SDK2021] GraL J081828.3-261325 gLS 08 18 28.3 -26 13 25           ~ 7 0
14 [SDK2021] GraL J081828.3-261325 source QSO 08 18 28.3 -26 13 25           ~ 2 0
15 [SDK2021] GraL J090729.3-021449 gLS 09 07 29.3 -02 14 49           ~ 1 0
16 CD-34 6792 PM* 10 32 13.6185546336 -35 37 41.711776068   12.84 11.84     F:wl: 158 0
17 1RXS J113058.9-441949 X 11 30 58.9 -44 19 49           ~ 3 0
18 [SDK2021] GraL J113100.0-442000 source QSO 11 31 00.0 -44 20 00           ~ 2 0
19 [KDW2018] GRAL J113100-441959 LS? 11 31 00.010 -44 19 59.87           ~ 12 0
20 [KDW2018] GRAL J122629-454209 LS? 12 26 29.0 -45 42 09           ~ 2 0
21 [DKW2019] 11 LS? 15 37 25.332 -30 10 16.99           ~ 12 0
22 [LAM2019] J1537-3010 source QSO 15 37 25.34 -30 10 16.8           ~ 4 0
23 [SDK2021] GraL J165105.3-041725 gLS 16 51 05.3 -04 17 25           ~ 6 0
24 [SDK2021] GraL J165105.3-041725 source QSO 16 51 05.3 -04 17 25           ~ 2 0
25 [DKW2019] 23 LS? 18 17 30.851 +27 29 40.08           ~ 11 0
26 [LAM2019] J1817+2729 source QSO 18 17 30.85 +27 29 40.1           ~ 3 0
27 NVSS J181731+272951 Rad 18 17 31.02 +27 29 51.2           ~ 1 0
28 CD-44 12736 PM* 18 36 25.9502475648 -44 18 36.907592904   10.83 10.22     G0 222 0
29 [LAM2019] J2014-3024 LS? 20 14 54.20 -30 24 52.5           ~ 3 0
30 [SDK2021] GraL J201749.1+620443 gLS 20 17 49.1 +62 04 43           ~ 3 0
31 [SDK2021] GraL J201749.1+620443 source QSO 20 17 49.1 +62 04 43           ~ 1 0
32 [ALK2018] WGD J2038-4008 gLS 20 38 02.707 -40 08 13.59           ~ 23 0
33 [ALK2018] WGD J2038-4008 source QSO 20 38 02.707 -40 08 13.59           ~ 6 0
34 2MASS J20380273-4008139 AG? 20 38 02.734 -40 08 13.97           ~ 2 0
35 1RXS J210328.9-085039 X 21 03 28.901 -08 50 39.52           ~ 2 0
36 [SDK2021] GraL J210329.0-085049 source QSO 21 03 29.0 -08 50 49           ~ 1 0
37 [SDK2021] GraL J210329.0-085049 gLS 21 03 29.0 -08 50 49           ~ 3 0

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