1999AJ....118.1444M

Query : 1999AJ....118.1444M

1999AJ....118.1444M - Astron. J., 118, 1444-1449 (1999/October-0)

CTQ 414: a new gravitational lens.

MORGAN N.D., DRESSLER A., MAZA J., SCHECHTER P.L. and WINN J.N.

Abstract (from CDS):

We report the discovery and ground-based observations of the new gravitational lens CTQ 414. The source quasar lies at a redshift of z=1.29 with a B magnitude of 17.6. Ground-based optical imaging reveals two point sources separated by 1".2 with a magnitude difference of roughly 1 mag. Subtraction of two stellar point-spread functions from images obtained in subarcsecond seeing consistently leaves behind a faint, residual object. Fits for two point sources plus an extended object places the fainter object collinear with the two brighter components. Subsequent Hubble Space Telescope Near Infrared Camera and Multi-Object Spectrometer (NICMOS) observations have confirmed the identification of the fainter object as the lensing galaxy. Very Large Array observations at 8.46 GHz reveal that all components of the lensing system are radio-quiet down to the 0.2 mJy flux level.

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Journal keyword(s): Cosmology: Gravitational Lensing - Galaxies: Quasars: Individual: Alphanumeric: CTQ 414

Nomenclature: [MDM99] CTS 414 A (Nos A-C). Table 5: [MDM99] N (Nos 1-8).

Simbad objects: 21

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Number of rows : 21
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 [MDM99] 1 ? 01 58 34.2 -43 23 12   19.56 18.52     ~ 1 0
2 2MASS J01584065-4327091 * 01 58 40.6537655928 -43 27 09.140393628   19.46 17.83     ~ 1 0
3 QSO J0158-4325 QSO 01 58 41.3988 -43 25 03.798   17.2 17.2     ~ 74 1
4 [MDM99] CTS 414 C G 01 58 41.47 -43 25 03.8           ~ 8 1
5 2MASS J01584544-4322464 * 01 58 45.4465415736 -43 22 46.419414996   17.53 16.81     ~ 1 0
6 [MDM99] 4 ? 01 58 45.5 -43 24 05   21.16 19.71     ~ 1 0
7 [MDM99] 5 ? 01 58 49.2 -43 26 25   19.33 18.82     ~ 1 0
8 GSC 07549-00969 * 01 58 50.7104452752 -43 22 49.193532012   15.60 14.79     ~ 1 0
9 2MASS J01585243-4325416 * 01 58 52.4522892192 -43 25 41.708226864   16.47 16.12     ~ 2 0
10 2MASS J01585772-4326494 * 01 58 57.7328908080 -43 26 49.469827056   17.33 16.70     ~ 1 0
11 GSC 00052-00856 PM* 02 33 34.0055021496 +05 19 30.957427884 16.134 15.11 14.05 13.74 12.779 ~ 11 0
12 UCAC2 33509289 * 02 33 40.0677079008 +05 17 40.692955632 13.750 13.479 12.768 12.363 11.974 ~ 9 1
13 PG 0231+051 WD* 02 33 41.3574299856 +05 18 43.649856216 14.562 15.776 16.096 16.267 16.639 DAO.6 149 0
14 GSC 00052-01627 * 02 33 45.5285810640 +05 17 33.322454664 17.525 16.169 14.732 13.781 12.799 ~ 8 0
15 GSC 00052-01506 * 02 33 48.1553068704 +05 20 26.341679292 14.463 14.385 13.707 13.311 12.924 ~ 8 1
16 [VV98] J095122.6+263513 QSO 09 51 22.5840 +26 35 13.786   17.66 17.31     ~ 120 1
17 PG 2331+055 HS? 23 33 44.4698554608 +05 46 39.793017432 14.629 15.116 15.182 15.194 15.226 sd 36 0
18 GSC 00591-00870 * 23 33 49.3728351504 +05 46 52.586428692 14.049 13.792 13.051 12.632 12.230 ~ 3 0
19 GSC 00591-00570 * 23 33 51.1325276328 +05 45 09.012322332 15.992 15.563 14.744 14.263 13.809 ~ 4 0
20 [MDM99] CTS 414 A LeI ~ ~           ~ 7 0
21 [MDM99] CTS 414 B LeI ~ ~           ~ 7 0

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